Moved headers from include/ to appropriate libs
include/camera -> camera/include/camera
include/media/audiohal -> media/libaudiohal/include
include/media/AudioResampler*.h -> media/libaudioprocessing/include
include/media/Audio*.h,IAudio*.h,IEffect*.h,ToneGenerator.h -> media/libaudioclient/include
include/media/EffectsFactoryApi.h -> media/libeffects/include
include/media/stagefright -> media/libstagefright/include
include/media/nbaio -> media/libnbaio/include
include/media/<rest of files> -> media/libmedia/include
include/cpustats -> media/libcpustats/include/cpustats
Added symlinks from old location to new ones
Bug: 33241851
Test: VNDK linked modules will need to add explicit lib dep.
All other modules should compile the same
Change-Id: I0ecf754a2132640ae781a3cc31428fb8c0bd1669
diff --git a/camera/Android.mk b/camera/Android.mk
index c9c98e9..91d87ed 100644
--- a/camera/Android.mk
+++ b/camera/Android.mk
@@ -65,11 +65,11 @@
system/media/camera/include \
system/media/private/camera/include \
frameworks/native/include/media/openmax \
- frameworks/av/include/camera
+ $(LOCAL_PATH)/include/camera
LOCAL_EXPORT_C_INCLUDE_DIRS := \
system/media/camera/include \
- frameworks/av/include/camera
+ $(LOCAL_PATH)/include/camera
LOCAL_CFLAGS += -Werror -Wall -Wextra
diff --git a/camera/include/camera/Camera.h b/camera/include/camera/Camera.h
new file mode 100644
index 0000000..57dc228
--- /dev/null
+++ b/camera/include/camera/Camera.h
@@ -0,0 +1,197 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_H
+#define ANDROID_HARDWARE_CAMERA_H
+
+#include <utils/Timers.h>
+
+#include <android/hardware/ICameraService.h>
+
+#include <gui/IGraphicBufferProducer.h>
+#include <system/camera.h>
+#include <camera/ICameraRecordingProxy.h>
+#include <camera/ICameraRecordingProxyListener.h>
+#include <camera/android/hardware/ICamera.h>
+#include <camera/android/hardware/ICameraClient.h>
+#include <camera/CameraBase.h>
+
+namespace android {
+
+class Surface;
+class String8;
+class String16;
+
+// ref-counted object for callbacks
+class CameraListener: virtual public RefBase
+{
+public:
+ virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
+ virtual void postData(int32_t msgType, const sp<IMemory>& dataPtr,
+ camera_frame_metadata_t *metadata) = 0;
+ virtual void postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) = 0;
+ virtual void postRecordingFrameHandleTimestamp(nsecs_t timestamp, native_handle_t* handle) = 0;
+};
+
+class Camera;
+
+template <>
+struct CameraTraits<Camera>
+{
+ typedef CameraListener TCamListener;
+ typedef ::android::hardware::ICamera TCamUser;
+ typedef ::android::hardware::ICameraClient TCamCallbacks;
+ typedef ::android::binder::Status(::android::hardware::ICameraService::*TCamConnectService)
+ (const sp<::android::hardware::ICameraClient>&,
+ int, const String16&, int, int,
+ /*out*/
+ sp<::android::hardware::ICamera>*);
+ static TCamConnectService fnConnectService;
+};
+
+
+class Camera :
+ public CameraBase<Camera>,
+ public ::android::hardware::BnCameraClient
+{
+public:
+ enum {
+ USE_CALLING_UID = ::android::hardware::ICameraService::USE_CALLING_UID
+ };
+ enum {
+ USE_CALLING_PID = ::android::hardware::ICameraService::USE_CALLING_PID
+ };
+
+ // construct a camera client from an existing remote
+ static sp<Camera> create(const sp<::android::hardware::ICamera>& camera);
+ static sp<Camera> connect(int cameraId,
+ const String16& clientPackageName,
+ int clientUid, int clientPid);
+
+ static status_t connectLegacy(int cameraId, int halVersion,
+ const String16& clientPackageName,
+ int clientUid, sp<Camera>& camera);
+
+ virtual ~Camera();
+
+ status_t reconnect();
+ status_t lock();
+ status_t unlock();
+
+ // pass the buffered IGraphicBufferProducer to the camera service
+ status_t setPreviewTarget(const sp<IGraphicBufferProducer>& bufferProducer);
+
+ // start preview mode, must call setPreviewTarget first
+ status_t startPreview();
+
+ // stop preview mode
+ void stopPreview();
+
+ // get preview state
+ bool previewEnabled();
+
+ // start recording mode, must call setPreviewTarget first
+ status_t startRecording();
+
+ // stop recording mode
+ void stopRecording();
+
+ // get recording state
+ bool recordingEnabled();
+
+ // release a recording frame
+ void releaseRecordingFrame(const sp<IMemory>& mem);
+
+ // release a recording frame handle
+ void releaseRecordingFrameHandle(native_handle_t *handle);
+
+ // autoFocus - status returned from callback
+ status_t autoFocus();
+
+ // cancel auto focus
+ status_t cancelAutoFocus();
+
+ // take a picture - picture returned from callback
+ status_t takePicture(int msgType);
+
+ // set preview/capture parameters - key/value pairs
+ status_t setParameters(const String8& params);
+
+ // get preview/capture parameters - key/value pairs
+ String8 getParameters() const;
+
+ // send command to camera driver
+ status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
+
+ // Tell camera how to pass video buffers. videoBufferMode is one of VIDEO_BUFFER_MODE_*.
+ // Returns OK if the specified video buffer mode is supported. If videoBufferMode is
+ // VIDEO_BUFFER_MODE_BUFFER_QUEUE, setVideoTarget() must be called before starting
+ // video recording.
+ status_t setVideoBufferMode(int32_t videoBufferMode);
+
+ // Set the video buffer producer for camera to use in VIDEO_BUFFER_MODE_BUFFER_QUEUE
+ // mode.
+ status_t setVideoTarget(const sp<IGraphicBufferProducer>& bufferProducer);
+
+ void setListener(const sp<CameraListener>& listener);
+ void setRecordingProxyListener(const sp<ICameraRecordingProxyListener>& listener);
+
+ // Configure preview callbacks to app. Only one of the older
+ // callbacks or the callback surface can be active at the same time;
+ // enabling one will disable the other if active. Flags can be
+ // disabled by calling it with CAMERA_FRAME_CALLBACK_FLAG_NOOP, and
+ // Target by calling it with a NULL interface.
+ void setPreviewCallbackFlags(int preview_callback_flag);
+ status_t setPreviewCallbackTarget(
+ const sp<IGraphicBufferProducer>& callbackProducer);
+
+ sp<ICameraRecordingProxy> getRecordingProxy();
+
+ // ICameraClient interface
+ virtual void notifyCallback(int32_t msgType, int32_t ext, int32_t ext2);
+ virtual void dataCallback(int32_t msgType, const sp<IMemory>& dataPtr,
+ camera_frame_metadata_t *metadata);
+ virtual void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr);
+ virtual void recordingFrameHandleCallbackTimestamp(nsecs_t timestamp, native_handle_t* handle);
+
+ class RecordingProxy : public BnCameraRecordingProxy
+ {
+ public:
+ explicit RecordingProxy(const sp<Camera>& camera);
+
+ // ICameraRecordingProxy interface
+ virtual status_t startRecording(const sp<ICameraRecordingProxyListener>& listener);
+ virtual void stopRecording();
+ virtual void releaseRecordingFrame(const sp<IMemory>& mem);
+ virtual void releaseRecordingFrameHandle(native_handle_t* handle);
+
+ private:
+ sp<Camera> mCamera;
+ };
+
+protected:
+ explicit Camera(int cameraId);
+ Camera(const Camera&);
+ Camera& operator=(const Camera);
+
+ sp<ICameraRecordingProxyListener> mRecordingProxyListener;
+
+ friend class CameraBase;
+};
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/CameraBase.h b/camera/include/camera/CameraBase.h
new file mode 100644
index 0000000..74a2dce
--- /dev/null
+++ b/camera/include/camera/CameraBase.h
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_BASE_H
+#define ANDROID_HARDWARE_CAMERA_BASE_H
+
+#include <android/hardware/ICameraServiceListener.h>
+
+#include <utils/Mutex.h>
+#include <binder/BinderService.h>
+
+struct camera_frame_metadata;
+
+namespace android {
+
+namespace hardware {
+
+
+class ICameraService;
+class ICameraServiceListener;
+
+enum {
+ /** The facing of the camera is opposite to that of the screen. */
+ CAMERA_FACING_BACK = 0,
+ /** The facing of the camera is the same as that of the screen. */
+ CAMERA_FACING_FRONT = 1,
+};
+
+struct CameraInfo : public android::Parcelable {
+ /**
+ * The direction that the camera faces to. It should be CAMERA_FACING_BACK
+ * or CAMERA_FACING_FRONT.
+ */
+ int facing;
+
+ /**
+ * The orientation of the camera image. The value is the angle that the
+ * camera image needs to be rotated clockwise so it shows correctly on the
+ * display in its natural orientation. It should be 0, 90, 180, or 270.
+ *
+ * For example, suppose a device has a naturally tall screen. The
+ * back-facing camera sensor is mounted in landscape. You are looking at
+ * the screen. If the top side of the camera sensor is aligned with the
+ * right edge of the screen in natural orientation, the value should be
+ * 90. If the top side of a front-facing camera sensor is aligned with the
+ * right of the screen, the value should be 270.
+ */
+ int orientation;
+
+ virtual status_t writeToParcel(android::Parcel* parcel) const;
+ virtual status_t readFromParcel(const android::Parcel* parcel);
+
+};
+
+/**
+ * Basic status information about a camera device - its name and its current
+ * state.
+ */
+struct CameraStatus : public android::Parcelable {
+ /**
+ * The name of the camera device
+ */
+ String8 cameraId;
+
+ /**
+ * Its current status, one of the ICameraService::STATUS_* fields
+ */
+ int32_t status;
+
+ virtual status_t writeToParcel(android::Parcel* parcel) const;
+ virtual status_t readFromParcel(const android::Parcel* parcel);
+
+ CameraStatus(String8 id, int32_t s) : cameraId(id), status(s) {}
+ CameraStatus() : status(ICameraServiceListener::STATUS_PRESENT) {}
+};
+
+} // namespace hardware
+
+using hardware::CameraInfo;
+
+
+template <typename TCam>
+struct CameraTraits {
+};
+
+template <typename TCam, typename TCamTraits = CameraTraits<TCam> >
+class CameraBase : public IBinder::DeathRecipient
+{
+public:
+ typedef typename TCamTraits::TCamListener TCamListener;
+ typedef typename TCamTraits::TCamUser TCamUser;
+ typedef typename TCamTraits::TCamCallbacks TCamCallbacks;
+ typedef typename TCamTraits::TCamConnectService TCamConnectService;
+
+ static sp<TCam> connect(int cameraId,
+ const String16& clientPackageName,
+ int clientUid, int clientPid);
+ virtual void disconnect();
+
+ void setListener(const sp<TCamListener>& listener);
+
+ static int getNumberOfCameras();
+
+ static status_t getCameraInfo(int cameraId,
+ /*out*/
+ struct hardware::CameraInfo* cameraInfo);
+
+ sp<TCamUser> remote();
+
+ // Status is set to 'UNKNOWN_ERROR' after successful (re)connection
+ status_t getStatus();
+
+protected:
+ CameraBase(int cameraId);
+ virtual ~CameraBase();
+
+ ////////////////////////////////////////////////////////
+ // TCamCallbacks implementation
+ ////////////////////////////////////////////////////////
+ virtual void notifyCallback(int32_t msgType, int32_t ext,
+ int32_t ext2);
+
+ ////////////////////////////////////////////////////////
+ // Common instance variables
+ ////////////////////////////////////////////////////////
+ Mutex mLock;
+
+ virtual void binderDied(const wp<IBinder>& who);
+
+ // helper function to obtain camera service handle
+ static const sp<::android::hardware::ICameraService> getCameraService();
+
+ sp<TCamUser> mCamera;
+ status_t mStatus;
+
+ sp<TCamListener> mListener;
+
+ const int mCameraId;
+
+ typedef CameraBase<TCam> CameraBaseT;
+};
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/CameraMetadata.h b/camera/include/camera/CameraMetadata.h
new file mode 100644
index 0000000..d284477
--- /dev/null
+++ b/camera/include/camera/CameraMetadata.h
@@ -0,0 +1,255 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_CLIENT_CAMERA2_CAMERAMETADATA_CPP
+#define ANDROID_CLIENT_CAMERA2_CAMERAMETADATA_CPP
+
+#include "system/camera_metadata.h"
+
+#include <utils/String8.h>
+#include <utils/Vector.h>
+#include <binder/Parcelable.h>
+
+namespace android {
+
+class VendorTagDescriptor;
+
+/**
+ * A convenience wrapper around the C-based camera_metadata_t library.
+ */
+class CameraMetadata: public Parcelable {
+ public:
+ /** Creates an empty object; best used when expecting to acquire contents
+ * from elsewhere */
+ CameraMetadata();
+ /** Creates an object with space for entryCapacity entries, with
+ * dataCapacity extra storage */
+ CameraMetadata(size_t entryCapacity, size_t dataCapacity = 10);
+
+ ~CameraMetadata();
+
+ /** Takes ownership of passed-in buffer */
+ CameraMetadata(camera_metadata_t *buffer);
+ /** Clones the metadata */
+ CameraMetadata(const CameraMetadata &other);
+
+ /**
+ * Assignment clones metadata buffer.
+ */
+ CameraMetadata &operator=(const CameraMetadata &other);
+ CameraMetadata &operator=(const camera_metadata_t *buffer);
+
+ /**
+ * Get reference to the underlying metadata buffer. Ownership remains with
+ * the CameraMetadata object, but non-const CameraMetadata methods will not
+ * work until unlock() is called. Note that the lock has nothing to do with
+ * thread-safety, it simply prevents the camera_metadata_t pointer returned
+ * here from being accidentally invalidated by CameraMetadata operations.
+ */
+ const camera_metadata_t* getAndLock() const;
+
+ /**
+ * Unlock the CameraMetadata for use again. After this unlock, the pointer
+ * given from getAndLock() may no longer be used. The pointer passed out
+ * from getAndLock must be provided to guarantee that the right object is
+ * being unlocked.
+ */
+ status_t unlock(const camera_metadata_t *buffer) const;
+
+ /**
+ * Release a raw metadata buffer to the caller. After this call,
+ * CameraMetadata no longer references the buffer, and the caller takes
+ * responsibility for freeing the raw metadata buffer (using
+ * free_camera_metadata()), or for handing it to another CameraMetadata
+ * instance.
+ */
+ camera_metadata_t* release();
+
+ /**
+ * Clear the metadata buffer and free all storage used by it
+ */
+ void clear();
+
+ /**
+ * Acquire a raw metadata buffer from the caller. After this call,
+ * the caller no longer owns the raw buffer, and must not free or manipulate it.
+ * If CameraMetadata already contains metadata, it is freed.
+ */
+ void acquire(camera_metadata_t* buffer);
+
+ /**
+ * Acquires raw buffer from other CameraMetadata object. After the call, the argument
+ * object no longer has any metadata.
+ */
+ void acquire(CameraMetadata &other);
+
+ /**
+ * Append metadata from another CameraMetadata object.
+ */
+ status_t append(const CameraMetadata &other);
+
+ /**
+ * Append metadata from a raw camera_metadata buffer
+ */
+ status_t append(const camera_metadata* other);
+
+ /**
+ * Number of metadata entries.
+ */
+ size_t entryCount() const;
+
+ /**
+ * Is the buffer empty (no entires)
+ */
+ bool isEmpty() const;
+
+ /**
+ * Sort metadata buffer for faster find
+ */
+ status_t sort();
+
+ /**
+ * Update metadata entry. Will create entry if it doesn't exist already, and
+ * will reallocate the buffer if insufficient space exists. Overloaded for
+ * the various types of valid data.
+ */
+ status_t update(uint32_t tag,
+ const uint8_t *data, size_t data_count);
+ status_t update(uint32_t tag,
+ const int32_t *data, size_t data_count);
+ status_t update(uint32_t tag,
+ const float *data, size_t data_count);
+ status_t update(uint32_t tag,
+ const int64_t *data, size_t data_count);
+ status_t update(uint32_t tag,
+ const double *data, size_t data_count);
+ status_t update(uint32_t tag,
+ const camera_metadata_rational_t *data, size_t data_count);
+ status_t update(uint32_t tag,
+ const String8 &string);
+ status_t update(const camera_metadata_ro_entry &entry);
+
+
+ template<typename T>
+ status_t update(uint32_t tag, Vector<T> data) {
+ return update(tag, data.array(), data.size());
+ }
+
+ /**
+ * Check if a metadata entry exists for a given tag id
+ *
+ */
+ bool exists(uint32_t tag) const;
+
+ /**
+ * Get metadata entry by tag id
+ */
+ camera_metadata_entry find(uint32_t tag);
+
+ /**
+ * Get metadata entry by tag id, with no editing
+ */
+ camera_metadata_ro_entry find(uint32_t tag) const;
+
+ /**
+ * Delete metadata entry by tag
+ */
+ status_t erase(uint32_t tag);
+
+ /**
+ * Swap the underlying camera metadata between this and the other
+ * metadata object.
+ */
+ void swap(CameraMetadata &other);
+
+ /**
+ * Dump contents into FD for debugging. The verbosity levels are
+ * 0: Tag entry information only, no data values
+ * 1: Level 0 plus at most 16 data values per entry
+ * 2: All information
+ *
+ * The indentation parameter sets the number of spaces to add to the start
+ * each line of output.
+ */
+ void dump(int fd, int verbosity = 1, int indentation = 0) const;
+
+ /**
+ * Serialization over Binder
+ */
+
+ // Metadata object is unchanged when reading from parcel fails.
+ virtual status_t readFromParcel(const Parcel *parcel) override;
+ virtual status_t writeToParcel(Parcel *parcel) const override;
+
+ /**
+ * Caller becomes the owner of the new metadata
+ * 'const Parcel' doesnt prevent us from calling the read functions.
+ * which is interesting since it changes the internal state
+ *
+ * NULL can be returned when no metadata was sent, OR if there was an issue
+ * unpacking the serialized data (i.e. bad parcel or invalid structure).
+ */
+ static status_t readFromParcel(const Parcel &parcel,
+ camera_metadata_t** out);
+ /**
+ * Caller retains ownership of metadata
+ * - Write 2 (int32 + blob) args in the current position
+ */
+ static status_t writeToParcel(Parcel &parcel,
+ const camera_metadata_t* metadata);
+
+ /**
+ * Find tag id for a given tag name, also checking vendor tags if available.
+ * On success, returns OK and writes the tag id into tag.
+ *
+ * This is a slow method.
+ */
+ static status_t getTagFromName(const char *name,
+ const VendorTagDescriptor* vTags, uint32_t *tag);
+
+ private:
+ camera_metadata_t *mBuffer;
+ mutable bool mLocked;
+
+ /**
+ * Check if tag has a given type
+ */
+ status_t checkType(uint32_t tag, uint8_t expectedType);
+
+ /**
+ * Base update entry method
+ */
+ status_t updateImpl(uint32_t tag, const void *data, size_t data_count);
+
+ /**
+ * Resize metadata buffer if needed by reallocating it and copying it over.
+ */
+ status_t resizeIfNeeded(size_t extraEntries, size_t extraData);
+
+};
+
+namespace hardware {
+namespace camera2 {
+namespace impl {
+using ::android::CameraMetadata;
+typedef CameraMetadata CameraMetadataNative;
+}
+}
+}
+
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/CameraParameters.h b/camera/include/camera/CameraParameters.h
new file mode 100644
index 0000000..ba33ffe
--- /dev/null
+++ b/camera/include/camera/CameraParameters.h
@@ -0,0 +1,699 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PARAMETERS_H
+#define ANDROID_HARDWARE_CAMERA_PARAMETERS_H
+
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+
+namespace android {
+
+struct Size {
+ int width;
+ int height;
+
+ Size() {
+ width = 0;
+ height = 0;
+ }
+
+ Size(int w, int h) {
+ width = w;
+ height = h;
+ }
+};
+
+class CameraParameters
+{
+public:
+ CameraParameters();
+ CameraParameters(const String8 ¶ms) { unflatten(params); }
+ ~CameraParameters();
+
+ String8 flatten() const;
+ void unflatten(const String8 ¶ms);
+
+ void set(const char *key, const char *value);
+ void set(const char *key, int value);
+ void setFloat(const char *key, float value);
+ const char *get(const char *key) const;
+ int getInt(const char *key) const;
+ float getFloat(const char *key) const;
+
+ void remove(const char *key);
+
+ void setPreviewSize(int width, int height);
+ void getPreviewSize(int *width, int *height) const;
+ void getSupportedPreviewSizes(Vector<Size> &sizes) const;
+
+ // Set the dimensions in pixels to the given width and height
+ // for video frames. The given width and height must be one
+ // of the supported dimensions returned from
+ // getSupportedVideoSizes(). Must not be called if
+ // getSupportedVideoSizes() returns an empty Vector of Size.
+ void setVideoSize(int width, int height);
+ // Retrieve the current dimensions (width and height)
+ // in pixels for video frames, which must be one of the
+ // supported dimensions returned from getSupportedVideoSizes().
+ // Must not be called if getSupportedVideoSizes() returns an
+ // empty Vector of Size.
+ void getVideoSize(int *width, int *height) const;
+ // Retrieve a Vector of supported dimensions (width and height)
+ // in pixels for video frames. If sizes returned from the method
+ // is empty, the camera does not support calls to setVideoSize()
+ // or getVideoSize(). In adddition, it also indicates that
+ // the camera only has a single output, and does not have
+ // separate output for video frames and preview frame.
+ void getSupportedVideoSizes(Vector<Size> &sizes) const;
+ // Retrieve the preferred preview size (width and height) in pixels
+ // for video recording. The given width and height must be one of
+ // supported preview sizes returned from getSupportedPreviewSizes().
+ // Must not be called if getSupportedVideoSizes() returns an empty
+ // Vector of Size. If getSupportedVideoSizes() returns an empty
+ // Vector of Size, the width and height returned from this method
+ // is invalid, and is "-1x-1".
+ void getPreferredPreviewSizeForVideo(int *width, int *height) const;
+
+ void setPreviewFrameRate(int fps);
+ int getPreviewFrameRate() const;
+ void getPreviewFpsRange(int *min_fps, int *max_fps) const;
+ void setPreviewFormat(const char *format);
+ const char *getPreviewFormat() const;
+ void setPictureSize(int width, int height);
+ void getPictureSize(int *width, int *height) const;
+ void getSupportedPictureSizes(Vector<Size> &sizes) const;
+ void setPictureFormat(const char *format);
+ const char *getPictureFormat() const;
+
+ void dump() const;
+ status_t dump(int fd, const Vector<String16>& args) const;
+
+ /**
+ * Returns a Vector containing the supported preview formats
+ * as enums given in graphics.h.
+ */
+ void getSupportedPreviewFormats(Vector<int>& formats) const;
+
+ // Returns true if no keys are present
+ bool isEmpty() const;
+
+ // Parameter keys to communicate between camera application and driver.
+ // The access (read/write, read only, or write only) is viewed from the
+ // perspective of applications, not driver.
+
+ // Preview frame size in pixels (width x height).
+ // Example value: "480x320". Read/Write.
+ static const char KEY_PREVIEW_SIZE[];
+ // Supported preview frame sizes in pixels.
+ // Example value: "800x600,480x320". Read only.
+ static const char KEY_SUPPORTED_PREVIEW_SIZES[];
+ // The current minimum and maximum preview fps. This controls the rate of
+ // preview frames received (CAMERA_MSG_PREVIEW_FRAME). The minimum and
+ // maximum fps must be one of the elements from
+ // KEY_SUPPORTED_PREVIEW_FPS_RANGE parameter.
+ // Example value: "10500,26623"
+ static const char KEY_PREVIEW_FPS_RANGE[];
+ // The supported preview fps (frame-per-second) ranges. Each range contains
+ // a minimum fps and maximum fps. If minimum fps equals to maximum fps, the
+ // camera outputs frames in fixed frame rate. If not, the camera outputs
+ // frames in auto frame rate. The actual frame rate fluctuates between the
+ // minimum and the maximum. The list has at least one element. The list is
+ // sorted from small to large (first by maximum fps and then minimum fps).
+ // Example value: "(10500,26623),(15000,26623),(30000,30000)"
+ static const char KEY_SUPPORTED_PREVIEW_FPS_RANGE[];
+ // The image format for preview frames. See CAMERA_MSG_PREVIEW_FRAME in
+ // frameworks/av/include/camera/Camera.h. The default is
+ // PIXEL_FORMAT_YUV420SP. Example value: "yuv420sp" or PIXEL_FORMAT_XXX
+ // constants. Read/write.
+ static const char KEY_PREVIEW_FORMAT[];
+ // Supported image formats for preview frames.
+ // Example value: "yuv420sp,yuv422i-yuyv". Read only.
+ static const char KEY_SUPPORTED_PREVIEW_FORMATS[];
+ // Number of preview frames per second. This is the target frame rate. The
+ // actual frame rate depends on the driver.
+ // Example value: "15". Read/write.
+ static const char KEY_PREVIEW_FRAME_RATE[];
+ // Supported number of preview frames per second.
+ // Example value: "24,15,10". Read.
+ static const char KEY_SUPPORTED_PREVIEW_FRAME_RATES[];
+ // The dimensions for captured pictures in pixels (width x height).
+ // Example value: "1024x768". Read/write.
+ static const char KEY_PICTURE_SIZE[];
+ // Supported dimensions for captured pictures in pixels.
+ // Example value: "2048x1536,1024x768". Read only.
+ static const char KEY_SUPPORTED_PICTURE_SIZES[];
+ // The image format for captured pictures. See CAMERA_MSG_COMPRESSED_IMAGE
+ // in frameworks/base/include/camera/Camera.h.
+ // Example value: "jpeg" or PIXEL_FORMAT_XXX constants. Read/write.
+ static const char KEY_PICTURE_FORMAT[];
+ // Supported image formats for captured pictures.
+ // Example value: "jpeg,rgb565". Read only.
+ static const char KEY_SUPPORTED_PICTURE_FORMATS[];
+ // The width (in pixels) of EXIF thumbnail in Jpeg picture.
+ // Example value: "512". Read/write.
+ static const char KEY_JPEG_THUMBNAIL_WIDTH[];
+ // The height (in pixels) of EXIF thumbnail in Jpeg picture.
+ // Example value: "384". Read/write.
+ static const char KEY_JPEG_THUMBNAIL_HEIGHT[];
+ // Supported EXIF thumbnail sizes (width x height). 0x0 means not thumbnail
+ // in EXIF.
+ // Example value: "512x384,320x240,0x0". Read only.
+ static const char KEY_SUPPORTED_JPEG_THUMBNAIL_SIZES[];
+ // The quality of the EXIF thumbnail in Jpeg picture. The range is 1 to 100,
+ // with 100 being the best.
+ // Example value: "90". Read/write.
+ static const char KEY_JPEG_THUMBNAIL_QUALITY[];
+ // Jpeg quality of captured picture. The range is 1 to 100, with 100 being
+ // the best.
+ // Example value: "90". Read/write.
+ static const char KEY_JPEG_QUALITY[];
+ // The rotation angle in degrees relative to the orientation of the camera.
+ // This affects the pictures returned from CAMERA_MSG_COMPRESSED_IMAGE. The
+ // camera driver may set orientation in the EXIF header without rotating the
+ // picture. Or the driver may rotate the picture and the EXIF thumbnail. If
+ // the Jpeg picture is rotated, the orientation in the EXIF header will be
+ // missing or 1 (row #0 is top and column #0 is left side).
+ //
+ // Note that the JPEG pictures of front-facing cameras are not mirrored
+ // as in preview display.
+ //
+ // For example, suppose the natural orientation of the device is portrait.
+ // The device is rotated 270 degrees clockwise, so the device orientation is
+ // 270. Suppose a back-facing camera sensor is mounted in landscape and the
+ // top side of the camera sensor is aligned with the right edge of the
+ // display in natural orientation. So the camera orientation is 90. The
+ // rotation should be set to 0 (270 + 90).
+ //
+ // Example value: "0" or "90" or "180" or "270". Write only.
+ static const char KEY_ROTATION[];
+ // GPS latitude coordinate. GPSLatitude and GPSLatitudeRef will be stored in
+ // JPEG EXIF header.
+ // Example value: "25.032146" or "-33.462809". Write only.
+ static const char KEY_GPS_LATITUDE[];
+ // GPS longitude coordinate. GPSLongitude and GPSLongitudeRef will be stored
+ // in JPEG EXIF header.
+ // Example value: "121.564448" or "-70.660286". Write only.
+ static const char KEY_GPS_LONGITUDE[];
+ // GPS altitude. GPSAltitude and GPSAltitudeRef will be stored in JPEG EXIF
+ // header.
+ // Example value: "21.0" or "-5". Write only.
+ static const char KEY_GPS_ALTITUDE[];
+ // GPS timestamp (UTC in seconds since January 1, 1970). This should be
+ // stored in JPEG EXIF header.
+ // Example value: "1251192757". Write only.
+ static const char KEY_GPS_TIMESTAMP[];
+ // GPS Processing Method
+ // Example value: "GPS" or "NETWORK". Write only.
+ static const char KEY_GPS_PROCESSING_METHOD[];
+ // Current white balance setting.
+ // Example value: "auto" or WHITE_BALANCE_XXX constants. Read/write.
+ static const char KEY_WHITE_BALANCE[];
+ // Supported white balance settings.
+ // Example value: "auto,incandescent,daylight". Read only.
+ static const char KEY_SUPPORTED_WHITE_BALANCE[];
+ // Current color effect setting.
+ // Example value: "none" or EFFECT_XXX constants. Read/write.
+ static const char KEY_EFFECT[];
+ // Supported color effect settings.
+ // Example value: "none,mono,sepia". Read only.
+ static const char KEY_SUPPORTED_EFFECTS[];
+ // Current antibanding setting.
+ // Example value: "auto" or ANTIBANDING_XXX constants. Read/write.
+ static const char KEY_ANTIBANDING[];
+ // Supported antibanding settings.
+ // Example value: "auto,50hz,60hz,off". Read only.
+ static const char KEY_SUPPORTED_ANTIBANDING[];
+ // Current scene mode.
+ // Example value: "auto" or SCENE_MODE_XXX constants. Read/write.
+ static const char KEY_SCENE_MODE[];
+ // Supported scene mode settings.
+ // Example value: "auto,night,fireworks". Read only.
+ static const char KEY_SUPPORTED_SCENE_MODES[];
+ // Current flash mode.
+ // Example value: "auto" or FLASH_MODE_XXX constants. Read/write.
+ static const char KEY_FLASH_MODE[];
+ // Supported flash modes.
+ // Example value: "auto,on,off". Read only.
+ static const char KEY_SUPPORTED_FLASH_MODES[];
+ // Current focus mode. This will not be empty. Applications should call
+ // CameraHardwareInterface.autoFocus to start the focus if focus mode is
+ // FOCUS_MODE_AUTO or FOCUS_MODE_MACRO.
+ // Example value: "auto" or FOCUS_MODE_XXX constants. Read/write.
+ static const char KEY_FOCUS_MODE[];
+ // Supported focus modes.
+ // Example value: "auto,macro,fixed". Read only.
+ static const char KEY_SUPPORTED_FOCUS_MODES[];
+ // The maximum number of focus areas supported. This is the maximum length
+ // of KEY_FOCUS_AREAS.
+ // Example value: "0" or "2". Read only.
+ static const char KEY_MAX_NUM_FOCUS_AREAS[];
+ // Current focus areas.
+ //
+ // Before accessing this parameter, apps should check
+ // KEY_MAX_NUM_FOCUS_AREAS first to know the maximum number of focus areas
+ // first. If the value is 0, focus area is not supported.
+ //
+ // Each focus area is a five-element int array. The first four elements are
+ // the rectangle of the area (left, top, right, bottom). The direction is
+ // relative to the sensor orientation, that is, what the sensor sees. The
+ // direction is not affected by the rotation or mirroring of
+ // CAMERA_CMD_SET_DISPLAY_ORIENTATION. Coordinates range from -1000 to 1000.
+ // (-1000,-1000) is the upper left point. (1000, 1000) is the lower right
+ // point. The width and height of focus areas cannot be 0 or negative.
+ //
+ // The fifth element is the weight. Values for weight must range from 1 to
+ // 1000. The weight should be interpreted as a per-pixel weight - all
+ // pixels in the area have the specified weight. This means a small area
+ // with the same weight as a larger area will have less influence on the
+ // focusing than the larger area. Focus areas can partially overlap and the
+ // driver will add the weights in the overlap region.
+ //
+ // A special case of single focus area (0,0,0,0,0) means driver to decide
+ // the focus area. For example, the driver may use more signals to decide
+ // focus areas and change them dynamically. Apps can set (0,0,0,0,0) if they
+ // want the driver to decide focus areas.
+ //
+ // Focus areas are relative to the current field of view (KEY_ZOOM). No
+ // matter what the zoom level is, (-1000,-1000) represents the top of the
+ // currently visible camera frame. The focus area cannot be set to be
+ // outside the current field of view, even when using zoom.
+ //
+ // Focus area only has effect if the current focus mode is FOCUS_MODE_AUTO,
+ // FOCUS_MODE_MACRO, FOCUS_MODE_CONTINUOUS_VIDEO, or
+ // FOCUS_MODE_CONTINUOUS_PICTURE.
+ // Example value: "(-10,-10,0,0,300),(0,0,10,10,700)". Read/write.
+ static const char KEY_FOCUS_AREAS[];
+ // Focal length in millimeter.
+ // Example value: "4.31". Read only.
+ static const char KEY_FOCAL_LENGTH[];
+ // Horizontal angle of view in degrees.
+ // Example value: "54.8". Read only.
+ static const char KEY_HORIZONTAL_VIEW_ANGLE[];
+ // Vertical angle of view in degrees.
+ // Example value: "42.5". Read only.
+ static const char KEY_VERTICAL_VIEW_ANGLE[];
+ // Exposure compensation index. 0 means exposure is not adjusted.
+ // Example value: "-5" or "5". Read/write.
+ static const char KEY_EXPOSURE_COMPENSATION[];
+ // The maximum exposure compensation index (>=0).
+ // Example value: "6". Read only.
+ static const char KEY_MAX_EXPOSURE_COMPENSATION[];
+ // The minimum exposure compensation index (<=0).
+ // Example value: "-6". Read only.
+ static const char KEY_MIN_EXPOSURE_COMPENSATION[];
+ // The exposure compensation step. Exposure compensation index multiply by
+ // step eqals to EV. Ex: if exposure compensation index is -6 and step is
+ // 0.3333, EV is -2.
+ // Example value: "0.333333333" or "0.5". Read only.
+ static const char KEY_EXPOSURE_COMPENSATION_STEP[];
+ // The state of the auto-exposure lock. "true" means that
+ // auto-exposure is locked to its current value and will not
+ // change. "false" means the auto-exposure routine is free to
+ // change exposure values. If auto-exposure is already locked,
+ // setting this to true again has no effect (the driver will not
+ // recalculate exposure values). Changing exposure compensation
+ // settings will still affect the exposure settings while
+ // auto-exposure is locked. Stopping preview or taking a still
+ // image will not change the lock. In conjunction with
+ // exposure compensation, this allows for capturing multi-exposure
+ // brackets with known relative exposure values. Locking
+ // auto-exposure after open but before the first call to
+ // startPreview may result in severely over- or under-exposed
+ // images. The driver will not change the AE lock after
+ // auto-focus completes.
+ static const char KEY_AUTO_EXPOSURE_LOCK[];
+ // Whether locking the auto-exposure is supported. "true" means it is, and
+ // "false" or this key not existing means it is not supported.
+ static const char KEY_AUTO_EXPOSURE_LOCK_SUPPORTED[];
+ // The state of the auto-white balance lock. "true" means that
+ // auto-white balance is locked to its current value and will not
+ // change. "false" means the auto-white balance routine is free to
+ // change white balance values. If auto-white balance is already
+ // locked, setting this to true again has no effect (the driver
+ // will not recalculate white balance values). Stopping preview or
+ // taking a still image will not change the lock. In conjunction
+ // with exposure compensation, this allows for capturing
+ // multi-exposure brackets with fixed white balance. Locking
+ // auto-white balance after open but before the first call to
+ // startPreview may result in severely incorrect color. The
+ // driver will not change the AWB lock after auto-focus
+ // completes.
+ static const char KEY_AUTO_WHITEBALANCE_LOCK[];
+ // Whether locking the auto-white balance is supported. "true"
+ // means it is, and "false" or this key not existing means it is
+ // not supported.
+ static const char KEY_AUTO_WHITEBALANCE_LOCK_SUPPORTED[];
+
+ // The maximum number of metering areas supported. This is the maximum
+ // length of KEY_METERING_AREAS.
+ // Example value: "0" or "2". Read only.
+ static const char KEY_MAX_NUM_METERING_AREAS[];
+ // Current metering areas. Camera driver uses these areas to decide
+ // exposure.
+ //
+ // Before accessing this parameter, apps should check
+ // KEY_MAX_NUM_METERING_AREAS first to know the maximum number of metering
+ // areas first. If the value is 0, metering area is not supported.
+ //
+ // Each metering area is a rectangle with specified weight. The direction is
+ // relative to the sensor orientation, that is, what the sensor sees. The
+ // direction is not affected by the rotation or mirroring of
+ // CAMERA_CMD_SET_DISPLAY_ORIENTATION. Coordinates of the rectangle range
+ // from -1000 to 1000. (-1000, -1000) is the upper left point. (1000, 1000)
+ // is the lower right point. The width and height of metering areas cannot
+ // be 0 or negative.
+ //
+ // The fifth element is the weight. Values for weight must range from 1 to
+ // 1000. The weight should be interpreted as a per-pixel weight - all
+ // pixels in the area have the specified weight. This means a small area
+ // with the same weight as a larger area will have less influence on the
+ // metering than the larger area. Metering areas can partially overlap and
+ // the driver will add the weights in the overlap region.
+ //
+ // A special case of all-zero single metering area means driver to decide
+ // the metering area. For example, the driver may use more signals to decide
+ // metering areas and change them dynamically. Apps can set all-zero if they
+ // want the driver to decide metering areas.
+ //
+ // Metering areas are relative to the current field of view (KEY_ZOOM).
+ // No matter what the zoom level is, (-1000,-1000) represents the top of the
+ // currently visible camera frame. The metering area cannot be set to be
+ // outside the current field of view, even when using zoom.
+ //
+ // No matter what metering areas are, the final exposure are compensated
+ // by KEY_EXPOSURE_COMPENSATION.
+ // Example value: "(-10,-10,0,0,300),(0,0,10,10,700)". Read/write.
+ static const char KEY_METERING_AREAS[];
+ // Current zoom value.
+ // Example value: "0" or "6". Read/write.
+ static const char KEY_ZOOM[];
+ // Maximum zoom value.
+ // Example value: "6". Read only.
+ static const char KEY_MAX_ZOOM[];
+ // The zoom ratios of all zoom values. The zoom ratio is in 1/100
+ // increments. Ex: a zoom of 3.2x is returned as 320. The number of list
+ // elements is KEY_MAX_ZOOM + 1. The first element is always 100. The last
+ // element is the zoom ratio of zoom value KEY_MAX_ZOOM.
+ // Example value: "100,150,200,250,300,350,400". Read only.
+ static const char KEY_ZOOM_RATIOS[];
+ // Whether zoom is supported. Zoom is supported if the value is "true". Zoom
+ // is not supported if the value is not "true" or the key does not exist.
+ // Example value: "true". Read only.
+ static const char KEY_ZOOM_SUPPORTED[];
+ // Whether if smooth zoom is supported. Smooth zoom is supported if the
+ // value is "true". It is not supported if the value is not "true" or the
+ // key does not exist.
+ // See CAMERA_CMD_START_SMOOTH_ZOOM, CAMERA_CMD_STOP_SMOOTH_ZOOM, and
+ // CAMERA_MSG_ZOOM in frameworks/base/include/camera/Camera.h.
+ // Example value: "true". Read only.
+ static const char KEY_SMOOTH_ZOOM_SUPPORTED[];
+
+ // The distances (in meters) from the camera to where an object appears to
+ // be in focus. The object is sharpest at the optimal focus distance. The
+ // depth of field is the far focus distance minus near focus distance.
+ //
+ // Focus distances may change after starting auto focus, canceling auto
+ // focus, or starting the preview. Applications can read this anytime to get
+ // the latest focus distances. If the focus mode is FOCUS_MODE_CONTINUOUS,
+ // focus distances may change from time to time.
+ //
+ // This is intended to estimate the distance between the camera and the
+ // subject. After autofocus, the subject distance may be within near and far
+ // focus distance. However, the precision depends on the camera hardware,
+ // autofocus algorithm, the focus area, and the scene. The error can be
+ // large and it should be only used as a reference.
+ //
+ // Far focus distance > optimal focus distance > near focus distance. If
+ // the far focus distance is infinity, the value should be "Infinity" (case
+ // sensitive). The format is three float values separated by commas. The
+ // first is near focus distance. The second is optimal focus distance. The
+ // third is far focus distance.
+ // Example value: "0.95,1.9,Infinity" or "0.049,0.05,0.051". Read only.
+ static const char KEY_FOCUS_DISTANCES[];
+
+ // The current dimensions in pixels (width x height) for video frames.
+ // The width and height must be one of the supported sizes retrieved
+ // via KEY_SUPPORTED_VIDEO_SIZES.
+ // Example value: "1280x720". Read/write.
+ static const char KEY_VIDEO_SIZE[];
+ // A list of the supported dimensions in pixels (width x height)
+ // for video frames. See CAMERA_MSG_VIDEO_FRAME for details in
+ // frameworks/base/include/camera/Camera.h.
+ // Example: "176x144,1280x720". Read only.
+ static const char KEY_SUPPORTED_VIDEO_SIZES[];
+
+ // The maximum number of detected faces supported by hardware face
+ // detection. If the value is 0, hardware face detection is not supported.
+ // Example: "5". Read only
+ static const char KEY_MAX_NUM_DETECTED_FACES_HW[];
+
+ // The maximum number of detected faces supported by software face
+ // detection. If the value is 0, software face detection is not supported.
+ // Example: "5". Read only
+ static const char KEY_MAX_NUM_DETECTED_FACES_SW[];
+
+ // Preferred preview frame size in pixels for video recording.
+ // The width and height must be one of the supported sizes retrieved
+ // via KEY_SUPPORTED_PREVIEW_SIZES. This key can be used only when
+ // getSupportedVideoSizes() does not return an empty Vector of Size.
+ // Camcorder applications are recommended to set the preview size
+ // to a value that is not larger than the preferred preview size.
+ // In other words, the product of the width and height of the
+ // preview size should not be larger than that of the preferred
+ // preview size. In addition, we recommend to choos a preview size
+ // that has the same aspect ratio as the resolution of video to be
+ // recorded.
+ // Example value: "800x600". Read only.
+ static const char KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO[];
+
+ // The image format for video frames. See CAMERA_MSG_VIDEO_FRAME in
+ // frameworks/base/include/camera/Camera.h.
+ // Example value: "yuv420sp" or PIXEL_FORMAT_XXX constants. Read only.
+ static const char KEY_VIDEO_FRAME_FORMAT[];
+
+ // Sets the hint of the recording mode. If this is true, MediaRecorder.start
+ // may be faster or has less glitches. This should be called before starting
+ // the preview for the best result. But it is allowed to change the hint
+ // while the preview is active. The default value is false.
+ //
+ // The apps can still call Camera.takePicture when the hint is true. The
+ // apps can call MediaRecorder.start when the hint is false. But the
+ // performance may be worse.
+ // Example value: "true" or "false". Read/write.
+ static const char KEY_RECORDING_HINT[];
+
+ // Returns true if video snapshot is supported. That is, applications
+ // can call Camera.takePicture during recording. Applications do not need to
+ // call Camera.startPreview after taking a picture. The preview will be
+ // still active. Other than that, taking a picture during recording is
+ // identical to taking a picture normally. All settings and methods related
+ // to takePicture work identically. Ex: KEY_PICTURE_SIZE,
+ // KEY_SUPPORTED_PICTURE_SIZES, KEY_JPEG_QUALITY, KEY_ROTATION, and etc.
+ // The picture will have an EXIF header. FLASH_MODE_AUTO and FLASH_MODE_ON
+ // also still work, but the video will record the flash.
+ //
+ // Applications can set shutter callback as null to avoid the shutter
+ // sound. It is also recommended to set raw picture and post view callbacks
+ // to null to avoid the interrupt of preview display.
+ //
+ // Field-of-view of the recorded video may be different from that of the
+ // captured pictures.
+ // Example value: "true" or "false". Read only.
+ static const char KEY_VIDEO_SNAPSHOT_SUPPORTED[];
+
+ // The state of the video stabilization. If set to true, both the
+ // preview stream and the recorded video stream are stabilized by
+ // the camera. Only valid to set if KEY_VIDEO_STABILIZATION_SUPPORTED is
+ // set to true.
+ //
+ // The value of this key can be changed any time the camera is
+ // open. If preview or recording is active, it is acceptable for
+ // there to be a slight video glitch when video stabilization is
+ // toggled on and off.
+ //
+ // This only stabilizes video streams (between-frames stabilization), and
+ // has no effect on still image capture.
+ static const char KEY_VIDEO_STABILIZATION[];
+
+ // Returns true if video stabilization is supported. That is, applications
+ // can set KEY_VIDEO_STABILIZATION to true and have a stabilized preview
+ // stream and record stabilized videos.
+ static const char KEY_VIDEO_STABILIZATION_SUPPORTED[];
+
+ // Supported modes for special effects with light.
+ // Example values: "lowlight,hdr".
+ static const char KEY_LIGHTFX[];
+
+ // Value for KEY_ZOOM_SUPPORTED or KEY_SMOOTH_ZOOM_SUPPORTED.
+ static const char TRUE[];
+ static const char FALSE[];
+
+ // Value for KEY_FOCUS_DISTANCES.
+ static const char FOCUS_DISTANCE_INFINITY[];
+
+ // Values for white balance settings.
+ static const char WHITE_BALANCE_AUTO[];
+ static const char WHITE_BALANCE_INCANDESCENT[];
+ static const char WHITE_BALANCE_FLUORESCENT[];
+ static const char WHITE_BALANCE_WARM_FLUORESCENT[];
+ static const char WHITE_BALANCE_DAYLIGHT[];
+ static const char WHITE_BALANCE_CLOUDY_DAYLIGHT[];
+ static const char WHITE_BALANCE_TWILIGHT[];
+ static const char WHITE_BALANCE_SHADE[];
+
+ // Values for effect settings.
+ static const char EFFECT_NONE[];
+ static const char EFFECT_MONO[];
+ static const char EFFECT_NEGATIVE[];
+ static const char EFFECT_SOLARIZE[];
+ static const char EFFECT_SEPIA[];
+ static const char EFFECT_POSTERIZE[];
+ static const char EFFECT_WHITEBOARD[];
+ static const char EFFECT_BLACKBOARD[];
+ static const char EFFECT_AQUA[];
+
+ // Values for antibanding settings.
+ static const char ANTIBANDING_AUTO[];
+ static const char ANTIBANDING_50HZ[];
+ static const char ANTIBANDING_60HZ[];
+ static const char ANTIBANDING_OFF[];
+
+ // Values for flash mode settings.
+ // Flash will not be fired.
+ static const char FLASH_MODE_OFF[];
+ // Flash will be fired automatically when required. The flash may be fired
+ // during preview, auto-focus, or snapshot depending on the driver.
+ static const char FLASH_MODE_AUTO[];
+ // Flash will always be fired during snapshot. The flash may also be
+ // fired during preview or auto-focus depending on the driver.
+ static const char FLASH_MODE_ON[];
+ // Flash will be fired in red-eye reduction mode.
+ static const char FLASH_MODE_RED_EYE[];
+ // Constant emission of light during preview, auto-focus and snapshot.
+ // This can also be used for video recording.
+ static const char FLASH_MODE_TORCH[];
+
+ // Values for scene mode settings.
+ static const char SCENE_MODE_AUTO[];
+ static const char SCENE_MODE_ACTION[];
+ static const char SCENE_MODE_PORTRAIT[];
+ static const char SCENE_MODE_LANDSCAPE[];
+ static const char SCENE_MODE_NIGHT[];
+ static const char SCENE_MODE_NIGHT_PORTRAIT[];
+ static const char SCENE_MODE_THEATRE[];
+ static const char SCENE_MODE_BEACH[];
+ static const char SCENE_MODE_SNOW[];
+ static const char SCENE_MODE_SUNSET[];
+ static const char SCENE_MODE_STEADYPHOTO[];
+ static const char SCENE_MODE_FIREWORKS[];
+ static const char SCENE_MODE_SPORTS[];
+ static const char SCENE_MODE_PARTY[];
+ static const char SCENE_MODE_CANDLELIGHT[];
+ // Applications are looking for a barcode. Camera driver will be optimized
+ // for barcode reading.
+ static const char SCENE_MODE_BARCODE[];
+ // A high-dynamic range mode. In this mode, the HAL module will use a
+ // capture strategy that extends the dynamic range of the captured
+ // image in some fashion. Only the final image is returned.
+ static const char SCENE_MODE_HDR[];
+
+ // Pixel color formats for KEY_PREVIEW_FORMAT, KEY_PICTURE_FORMAT,
+ // and KEY_VIDEO_FRAME_FORMAT
+ static const char PIXEL_FORMAT_YUV422SP[];
+ static const char PIXEL_FORMAT_YUV420SP[]; // NV21
+ static const char PIXEL_FORMAT_YUV422I[]; // YUY2
+ static const char PIXEL_FORMAT_YUV420P[]; // YV12
+ static const char PIXEL_FORMAT_RGB565[];
+ static const char PIXEL_FORMAT_RGBA8888[];
+ static const char PIXEL_FORMAT_JPEG[];
+ // Raw bayer format used for images, which is 10 bit precision samples
+ // stored in 16 bit words. The filter pattern is RGGB.
+ static const char PIXEL_FORMAT_BAYER_RGGB[];
+ // Pixel format is not known to the framework
+ static const char PIXEL_FORMAT_ANDROID_OPAQUE[];
+
+ // Values for focus mode settings.
+ // Auto-focus mode. Applications should call
+ // CameraHardwareInterface.autoFocus to start the focus in this mode.
+ static const char FOCUS_MODE_AUTO[];
+ // Focus is set at infinity. Applications should not call
+ // CameraHardwareInterface.autoFocus in this mode.
+ static const char FOCUS_MODE_INFINITY[];
+ // Macro (close-up) focus mode. Applications should call
+ // CameraHardwareInterface.autoFocus to start the focus in this mode.
+ static const char FOCUS_MODE_MACRO[];
+ // Focus is fixed. The camera is always in this mode if the focus is not
+ // adjustable. If the camera has auto-focus, this mode can fix the
+ // focus, which is usually at hyperfocal distance. Applications should
+ // not call CameraHardwareInterface.autoFocus in this mode.
+ static const char FOCUS_MODE_FIXED[];
+ // Extended depth of field (EDOF). Focusing is done digitally and
+ // continuously. Applications should not call
+ // CameraHardwareInterface.autoFocus in this mode.
+ static const char FOCUS_MODE_EDOF[];
+ // Continuous auto focus mode intended for video recording. The camera
+ // continuously tries to focus. This is the best choice for video
+ // recording because the focus changes smoothly . Applications still can
+ // call CameraHardwareInterface.takePicture in this mode but the subject may
+ // not be in focus. Auto focus starts when the parameter is set.
+ //
+ // Applications can call CameraHardwareInterface.autoFocus in this mode. The
+ // focus callback will immediately return with a boolean that indicates
+ // whether the focus is sharp or not. The focus position is locked after
+ // autoFocus call. If applications want to resume the continuous focus,
+ // cancelAutoFocus must be called. Restarting the preview will not resume
+ // the continuous autofocus. To stop continuous focus, applications should
+ // change the focus mode to other modes.
+ static const char FOCUS_MODE_CONTINUOUS_VIDEO[];
+ // Continuous auto focus mode intended for taking pictures. The camera
+ // continuously tries to focus. The speed of focus change is more aggressive
+ // than FOCUS_MODE_CONTINUOUS_VIDEO. Auto focus starts when the parameter is
+ // set.
+ //
+ // Applications can call CameraHardwareInterface.autoFocus in this mode. If
+ // the autofocus is in the middle of scanning, the focus callback will
+ // return when it completes. If the autofocus is not scanning, focus
+ // callback will immediately return with a boolean that indicates whether
+ // the focus is sharp or not. The apps can then decide if they want to take
+ // a picture immediately or to change the focus mode to auto, and run a full
+ // autofocus cycle. The focus position is locked after autoFocus call. If
+ // applications want to resume the continuous focus, cancelAutoFocus must be
+ // called. Restarting the preview will not resume the continuous autofocus.
+ // To stop continuous focus, applications should change the focus mode to
+ // other modes.
+ static const char FOCUS_MODE_CONTINUOUS_PICTURE[];
+
+ // Values for light special effects
+ // Low-light enhancement mode
+ static const char LIGHTFX_LOWLIGHT[];
+ // High-dynamic range mode
+ static const char LIGHTFX_HDR[];
+
+ /**
+ * Returns the the supported preview formats as an enum given in graphics.h
+ * corrsponding to the format given in the input string or -1 if no such
+ * conversion exists.
+ */
+ static int previewFormatToEnum(const char* format);
+
+private:
+ DefaultKeyedVector<String8,String8> mMap;
+};
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/CameraParameters2.h b/camera/include/camera/CameraParameters2.h
new file mode 100644
index 0000000..f691cd6
--- /dev/null
+++ b/camera/include/camera/CameraParameters2.h
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PARAMETERS2_H
+#define ANDROID_HARDWARE_CAMERA_PARAMETERS2_H
+
+#include <utils/Vector.h>
+#include <utils/String8.h>
+#include "CameraParameters.h"
+
+namespace android {
+
+/**
+ * A copy of CameraParameters plus ABI-breaking changes. Needed
+ * because some camera HALs directly link to CameraParameters and cannot
+ * tolerate an ABI change.
+ */
+class CameraParameters2
+{
+public:
+ CameraParameters2();
+ CameraParameters2(const String8 ¶ms) { unflatten(params); }
+ ~CameraParameters2();
+
+ String8 flatten() const;
+ void unflatten(const String8 ¶ms);
+
+ void set(const char *key, const char *value);
+ void set(const char *key, int value);
+ void setFloat(const char *key, float value);
+ // Look up string value by key.
+ // -- The string remains valid until the next set/remove of the same key,
+ // or until the map gets cleared.
+ const char *get(const char *key) const;
+ int getInt(const char *key) const;
+ float getFloat(const char *key) const;
+
+ // Compare the order that key1 was set vs the order that key2 was set.
+ //
+ // Sets the order parameter to an integer less than, equal to, or greater
+ // than zero if key1's set order was respectively, to be less than, to
+ // match, or to be greater than key2's set order.
+ //
+ // Error codes:
+ // * NAME_NOT_FOUND - if either key has not been set previously
+ // * BAD_VALUE - if any of the parameters are NULL
+ status_t compareSetOrder(const char *key1, const char *key2,
+ /*out*/
+ int *order) const;
+
+ void remove(const char *key);
+
+ void setPreviewSize(int width, int height);
+ void getPreviewSize(int *width, int *height) const;
+ void getSupportedPreviewSizes(Vector<Size> &sizes) const;
+
+ // Set the dimensions in pixels to the given width and height
+ // for video frames. The given width and height must be one
+ // of the supported dimensions returned from
+ // getSupportedVideoSizes(). Must not be called if
+ // getSupportedVideoSizes() returns an empty Vector of Size.
+ void setVideoSize(int width, int height);
+ // Retrieve the current dimensions (width and height)
+ // in pixels for video frames, which must be one of the
+ // supported dimensions returned from getSupportedVideoSizes().
+ // Must not be called if getSupportedVideoSizes() returns an
+ // empty Vector of Size.
+ void getVideoSize(int *width, int *height) const;
+ // Retrieve a Vector of supported dimensions (width and height)
+ // in pixels for video frames. If sizes returned from the method
+ // is empty, the camera does not support calls to setVideoSize()
+ // or getVideoSize(). In adddition, it also indicates that
+ // the camera only has a single output, and does not have
+ // separate output for video frames and preview frame.
+ void getSupportedVideoSizes(Vector<Size> &sizes) const;
+ // Retrieve the preferred preview size (width and height) in pixels
+ // for video recording. The given width and height must be one of
+ // supported preview sizes returned from getSupportedPreviewSizes().
+ // Must not be called if getSupportedVideoSizes() returns an empty
+ // Vector of Size. If getSupportedVideoSizes() returns an empty
+ // Vector of Size, the width and height returned from this method
+ // is invalid, and is "-1x-1".
+ void getPreferredPreviewSizeForVideo(int *width, int *height) const;
+
+ void setPreviewFrameRate(int fps);
+ int getPreviewFrameRate() const;
+ void getPreviewFpsRange(int *min_fps, int *max_fps) const;
+ void setPreviewFpsRange(int min_fps, int max_fps);
+ void setPreviewFormat(const char *format);
+ const char *getPreviewFormat() const;
+ void setPictureSize(int width, int height);
+ void getPictureSize(int *width, int *height) const;
+ void getSupportedPictureSizes(Vector<Size> &sizes) const;
+ void setPictureFormat(const char *format);
+ const char *getPictureFormat() const;
+
+ void dump() const;
+ status_t dump(int fd, const Vector<String16>& args) const;
+
+private:
+
+ // Quick and dirty map that maintains insertion order
+ template <typename KeyT, typename ValueT>
+ struct OrderedKeyedVector {
+
+ ssize_t add(const KeyT& key, const ValueT& value) {
+ return mList.add(Pair(key, value));
+ }
+
+ size_t size() const {
+ return mList.size();
+ }
+
+ const KeyT& keyAt(size_t idx) const {
+ return mList[idx].mKey;
+ }
+
+ const ValueT& valueAt(size_t idx) const {
+ return mList[idx].mValue;
+ }
+
+ const ValueT& valueFor(const KeyT& key) const {
+ ssize_t i = indexOfKey(key);
+ LOG_ALWAYS_FATAL_IF(i<0, "%s: key not found", __PRETTY_FUNCTION__);
+
+ return valueAt(i);
+ }
+
+ ssize_t indexOfKey(const KeyT& key) const {
+ size_t vectorIdx = 0;
+ for (; vectorIdx < mList.size(); ++vectorIdx) {
+ if (mList[vectorIdx].mKey == key) {
+ return (ssize_t) vectorIdx;
+ }
+ }
+
+ return NAME_NOT_FOUND;
+ }
+
+ ssize_t removeItem(const KeyT& key) {
+ ssize_t vectorIdx = indexOfKey(key);
+
+ if (vectorIdx < 0) {
+ return vectorIdx;
+ }
+
+ return mList.removeAt(vectorIdx);
+ }
+
+ void clear() {
+ mList.clear();
+ }
+
+ // Same as removing and re-adding. The key's index changes to max.
+ ssize_t replaceValueFor(const KeyT& key, const ValueT& value) {
+ removeItem(key);
+ return add(key, value);
+ }
+
+ private:
+
+ struct Pair {
+ Pair() : mKey(), mValue() {}
+ Pair(const KeyT& key, const ValueT& value) :
+ mKey(key),
+ mValue(value) {}
+ KeyT mKey;
+ ValueT mValue;
+ };
+
+ Vector<Pair> mList;
+ };
+
+ /**
+ * Order matters: Keys that are set() later are stored later in the map.
+ *
+ * If two keys have meaning that conflict, then the later-set key
+ * wins.
+ *
+ * For example, preview FPS and preview FPS range conflict since only
+ * we only want to use the FPS range if that's the last thing that was set.
+ * So in that case, only use preview FPS range if it was set later than
+ * the preview FPS.
+ */
+ OrderedKeyedVector<String8,String8> mMap;
+};
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/CameraUtils.h b/camera/include/camera/CameraUtils.h
new file mode 100644
index 0000000..f596f80
--- /dev/null
+++ b/camera/include/camera/CameraUtils.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_CAMERA_CLIENT_CAMERAUTILS_H
+#define ANDROID_CAMERA_CLIENT_CAMERAUTILS_H
+
+#include <binder/IMemory.h>
+#include <camera/CameraMetadata.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include <stdint.h>
+
+namespace android {
+
+/**
+ * CameraUtils contains utility methods that are shared between the native
+ * camera client, and the camera service.
+ */
+class CameraUtils {
+ public:
+ /**
+ * Calculate the ANativeWindow transform from the static camera
+ * metadata. This is based on the sensor orientation and lens facing
+ * attributes of the camera device.
+ *
+ * Returns OK on success, or a negative error code.
+ */
+ static status_t getRotationTransform(const CameraMetadata& staticInfo,
+ /*out*/int32_t* transform);
+
+ /**
+ * Check if the image data is VideoNativeHandleMetadata, that contains a native handle.
+ */
+ static bool isNativeHandleMetadata(const sp<IMemory>& imageData);
+
+ private:
+ CameraUtils();
+};
+
+} /* namespace android */
+
+#endif /* ANDROID_CAMERA_CLIENT_CAMERAUTILS_H */
+
diff --git a/camera/include/camera/CaptureResult.h b/camera/include/camera/CaptureResult.h
new file mode 100644
index 0000000..917d953
--- /dev/null
+++ b/camera/include/camera/CaptureResult.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAPTURERESULT_H
+#define ANDROID_HARDWARE_CAPTURERESULT_H
+
+#include <utils/RefBase.h>
+#include <binder/Parcelable.h>
+#include <camera/CameraMetadata.h>
+
+
+namespace android {
+
+namespace hardware {
+namespace camera2 {
+namespace impl {
+
+/**
+ * CaptureResultExtras is a structure to encapsulate various indices for a capture result.
+ * These indices are framework-internal and not sent to the HAL.
+ */
+struct CaptureResultExtras : public android::Parcelable {
+ /**
+ * An integer to index the request sequence that this result belongs to.
+ */
+ int32_t requestId;
+
+ /**
+ * An integer to index this result inside a request sequence, starting from 0.
+ */
+ int32_t burstId;
+
+ /**
+ * TODO: Add documentation for this field.
+ */
+ int32_t afTriggerId;
+
+ /**
+ * TODO: Add documentation for this field.
+ */
+ int32_t precaptureTriggerId;
+
+ /**
+ * A 64bit integer to index the frame number associated with this result.
+ */
+ int64_t frameNumber;
+
+ /**
+ * The partial result count (index) for this capture result.
+ */
+ int32_t partialResultCount;
+
+ /**
+ * For buffer drop errors, the stream ID for the stream that lost a buffer.
+ * Otherwise -1.
+ */
+ int32_t errorStreamId;
+
+ /**
+ * Constructor initializes object as invalid by setting requestId to be -1.
+ */
+ CaptureResultExtras()
+ : requestId(-1),
+ burstId(0),
+ afTriggerId(0),
+ precaptureTriggerId(0),
+ frameNumber(0),
+ partialResultCount(0),
+ errorStreamId(-1) {
+ }
+
+ /**
+ * This function returns true if it's a valid CaptureResultExtras object.
+ * Otherwise, returns false. It is valid only when requestId is non-negative.
+ */
+ bool isValid();
+
+ virtual status_t readFromParcel(const android::Parcel* parcel) override;
+ virtual status_t writeToParcel(android::Parcel* parcel) const override;
+};
+} // namespace impl
+} // namespace camera2
+} // namespace hardware
+
+using hardware::camera2::impl::CaptureResultExtras;
+
+struct CaptureResult : public virtual LightRefBase<CaptureResult> {
+ CameraMetadata mMetadata;
+ CaptureResultExtras mResultExtras;
+
+ CaptureResult();
+
+ CaptureResult(const CaptureResult& otherResult);
+
+ status_t readFromParcel(android::Parcel* parcel);
+ status_t writeToParcel(android::Parcel* parcel) const;
+};
+
+}
+
+#endif /* ANDROID_HARDWARE_CAPTURERESULT_H */
diff --git a/camera/include/camera/ICameraRecordingProxy.h b/camera/include/camera/ICameraRecordingProxy.h
new file mode 100644
index 0000000..cb6824a
--- /dev/null
+++ b/camera/include/camera/ICameraRecordingProxy.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_H
+#define ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_H
+
+#include <binder/IInterface.h>
+#include <cutils/native_handle.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class ICameraRecordingProxyListener;
+class IMemory;
+class Parcel;
+
+/*
+ * The purpose of ICameraRecordingProxy and ICameraRecordingProxyListener is to
+ * allow applications using the camera during recording.
+ *
+ * Camera service allows only one client at a time. Since camcorder application
+ * needs to own the camera to do things like zoom, the media recorder cannot
+ * access the camera directly during recording. So ICameraRecordingProxy is a
+ * proxy of ICamera, which allows the media recorder to start/stop the recording
+ * and release recording frames. ICameraRecordingProxyListener is an interface
+ * that allows the recorder to receive video frames during recording.
+ *
+ * ICameraRecordingProxy
+ * startRecording()
+ * stopRecording()
+ * releaseRecordingFrame()
+ *
+ * ICameraRecordingProxyListener
+ * dataCallbackTimestamp()
+
+ * The camcorder app opens the camera and starts the preview. The app passes
+ * ICamera and ICameraRecordingProxy to the media recorder by
+ * MediaRecorder::setCamera(). The recorder uses ICamera to setup the camera in
+ * MediaRecorder::start(). After setup, the recorder disconnects from camera
+ * service. The recorder calls ICameraRecordingProxy::startRecording() and
+ * passes a ICameraRecordingProxyListener to the app. The app connects back to
+ * camera service and starts the recording. The app owns the camera and can do
+ * things like zoom. The media recorder receives the video frames from the
+ * listener and releases them by ICameraRecordingProxy::releaseRecordingFrame.
+ * The recorder calls ICameraRecordingProxy::stopRecording() to stop the
+ * recording.
+ *
+ * The call sequences are as follows:
+ * 1. The app: Camera.unlock().
+ * 2. The app: MediaRecorder.setCamera().
+ * 3. Start recording
+ * (1) The app: MediaRecorder.start().
+ * (2) The recorder: ICamera.unlock() and ICamera.disconnect().
+ * (3) The recorder: ICameraRecordingProxy.startRecording().
+ * (4) The app: ICamera.reconnect().
+ * (5) The app: ICamera.startRecording().
+ * 4. During recording
+ * (1) The recorder: receive frames from ICameraRecordingProxyListener.dataCallbackTimestamp()
+ * (2) The recorder: release frames by ICameraRecordingProxy.releaseRecordingFrame().
+ * 5. Stop recording
+ * (1) The app: MediaRecorder.stop()
+ * (2) The recorder: ICameraRecordingProxy.stopRecording().
+ * (3) The app: ICamera.stopRecording().
+ */
+
+class ICameraRecordingProxy: public IInterface
+{
+public:
+ DECLARE_META_INTERFACE(CameraRecordingProxy);
+
+ virtual status_t startRecording(const sp<ICameraRecordingProxyListener>& listener) = 0;
+ virtual void stopRecording() = 0;
+ virtual void releaseRecordingFrame(const sp<IMemory>& mem) = 0;
+ virtual void releaseRecordingFrameHandle(native_handle_t *handle) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCameraRecordingProxy: public BnInterface<ICameraRecordingProxy>
+{
+public:
+ virtual status_t onTransact( uint32_t code,
+ const Parcel& data,
+ Parcel* reply,
+ uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/ICameraRecordingProxyListener.h b/camera/include/camera/ICameraRecordingProxyListener.h
new file mode 100644
index 0000000..1fee5b9
--- /dev/null
+++ b/camera/include/camera/ICameraRecordingProxyListener.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_LISTENER_H
+#define ANDROID_HARDWARE_ICAMERA_RECORDING_PROXY_LISTENER_H
+
+#include <binder/IInterface.h>
+#include <cutils/native_handle.h>
+#include <stdint.h>
+#include <utils/RefBase.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+class Parcel;
+class IMemory;
+
+class ICameraRecordingProxyListener: public IInterface
+{
+public:
+ DECLARE_META_INTERFACE(CameraRecordingProxyListener);
+
+ virtual void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType,
+ const sp<IMemory>& data) = 0;
+
+ virtual void recordingFrameHandleCallbackTimestamp(nsecs_t timestamp,
+ native_handle_t* handle) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCameraRecordingProxyListener: public BnInterface<ICameraRecordingProxyListener>
+{
+public:
+ virtual status_t onTransact( uint32_t code,
+ const Parcel& data,
+ Parcel* reply,
+ uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/ICameraServiceProxy.h b/camera/include/camera/ICameraServiceProxy.h
new file mode 100644
index 0000000..2613c01
--- /dev/null
+++ b/camera/include/camera/ICameraServiceProxy.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERASERVICEPROXY_H
+#define ANDROID_HARDWARE_ICAMERASERVICEPROXY_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+/**
+ * Interface from native camera service to managed-side camera service proxy.
+ *
+ * Keep in sync with frameworks/base/core/java/android/hardware/ICameraServiceProxy.aidl
+ *
+ */
+class ICameraServiceProxy : public IInterface {
+public:
+ enum {
+ PING_FOR_USER_UPDATE = IBinder::FIRST_CALL_TRANSACTION,
+ NOTIFY_CAMERA_STATE
+ };
+
+ enum CameraState {
+ CAMERA_STATE_OPEN,
+ CAMERA_STATE_ACTIVE,
+ CAMERA_STATE_IDLE,
+ CAMERA_STATE_CLOSED
+ };
+
+ DECLARE_META_INTERFACE(CameraServiceProxy);
+
+ virtual void pingForUserUpdate() = 0;
+ virtual void notifyCameraState(String16 cameraId, CameraState newCameraState) = 0;
+};
+
+class BnCameraServiceProxy: public BnInterface<ICameraServiceProxy>
+{
+public:
+ virtual status_t onTransact( uint32_t code,
+ const Parcel& data,
+ Parcel* reply,
+ uint32_t flags = 0);
+};
+
+
+
+}; // namespace android
+
+#endif // ANDROID_HARDWARE_ICAMERASERVICEPROXY_H
diff --git a/camera/include/camera/VendorTagDescriptor.h b/camera/include/camera/VendorTagDescriptor.h
new file mode 100644
index 0000000..adfc8c7
--- /dev/null
+++ b/camera/include/camera/VendorTagDescriptor.h
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef VENDOR_TAG_DESCRIPTOR_H
+
+#include <binder/Parcelable.h>
+#include <utils/Vector.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/RefBase.h>
+#include <system/camera_vendor_tags.h>
+
+#include <stdint.h>
+
+namespace android {
+
+class VendorTagDescriptor;
+
+namespace hardware {
+namespace camera2 {
+namespace params {
+
+/**
+ * VendorTagDescriptor objects are parcelable containers for the vendor tag
+ * definitions provided, and are typically used to pass the vendor tag
+ * information enumerated by the HAL to clients of the camera service.
+ */
+class VendorTagDescriptor : public Parcelable {
+ public:
+ virtual ~VendorTagDescriptor();
+
+ VendorTagDescriptor();
+ VendorTagDescriptor(const VendorTagDescriptor& src);
+ VendorTagDescriptor& operator=(const VendorTagDescriptor& rhs);
+
+ void copyFrom(const VendorTagDescriptor& src);
+
+ /**
+ * The following 'get*' methods implement the corresponding
+ * functions defined in
+ * system/media/camera/include/system/camera_vendor_tags.h
+ */
+
+ // Returns the number of vendor tags defined.
+ int getTagCount() const;
+
+ // Returns an array containing the id's of vendor tags defined.
+ void getTagArray(uint32_t* tagArray) const;
+
+ // Returns the section name string for a given vendor tag id.
+ const char* getSectionName(uint32_t tag) const;
+
+ // Returns the tag name string for a given vendor tag id.
+ const char* getTagName(uint32_t tag) const;
+
+ // Returns the tag type for a given vendor tag id.
+ int getTagType(uint32_t tag) const;
+
+ /**
+ * Write the VendorTagDescriptor object into the given parcel.
+ *
+ * Returns OK on success, or a negative error code.
+ */
+ virtual status_t writeToParcel(
+ /*out*/
+ android::Parcel* parcel) const override;
+
+ /**
+ * Convenience method to get a vector containing all vendor tag
+ * sections, or an empty vector if none are defined.
+ * The pointer is valid for the lifetime of the VendorTagDescriptor,
+ * or until readParcel or copyFrom is invoked.
+ */
+ const SortedVector<String8>* getAllSectionNames() const;
+
+ /**
+ * Lookup the tag id for a given tag name and section.
+ *
+ * Returns OK on success, or a negative error code.
+ */
+ status_t lookupTag(const String8& name, const String8& section, /*out*/uint32_t* tag) const;
+
+ /**
+ * Dump the currently configured vendor tags to a file descriptor.
+ */
+ void dump(int fd, int verbosity, int indentation) const;
+
+ /**
+ * Read values VendorTagDescriptor object from the given parcel.
+ *
+ * Returns OK on success, or a negative error code.
+ */
+ virtual status_t readFromParcel(const android::Parcel* parcel) override;
+
+ protected:
+ KeyedVector<String8, KeyedVector<String8, uint32_t>*> mReverseMapping;
+ KeyedVector<uint32_t, String8> mTagToNameMap;
+ KeyedVector<uint32_t, uint32_t> mTagToSectionMap; // Value is offset in mSections
+ KeyedVector<uint32_t, int32_t> mTagToTypeMap;
+ SortedVector<String8> mSections;
+ // must be int32_t to be compatible with Parcel::writeInt32
+ int32_t mTagCount;
+
+ vendor_tag_ops mVendorOps;
+};
+} /* namespace params */
+} /* namespace camera2 */
+} /* namespace hardware */
+
+/**
+ * This version of VendorTagDescriptor must be stored in Android sp<>, and adds support for using it
+ * as a global tag descriptor.
+ *
+ * It's a child class of the basic hardware::camera2::params::VendorTagDescriptor since basic
+ * Parcelable objects cannot require being kept in an sp<> and still work with auto-generated AIDL
+ * interface implementations.
+ */
+class VendorTagDescriptor :
+ public ::android::hardware::camera2::params::VendorTagDescriptor,
+ public LightRefBase<VendorTagDescriptor> {
+
+ public:
+
+ /**
+ * Create a VendorTagDescriptor object from the given vendor_tag_ops_t
+ * struct.
+ *
+ * Returns OK on success, or a negative error code.
+ */
+ static status_t createDescriptorFromOps(const vendor_tag_ops_t* vOps,
+ /*out*/
+ sp<VendorTagDescriptor>& descriptor);
+
+ /**
+ * Sets the global vendor tag descriptor to use for this process.
+ * Camera metadata operations that access vendor tags will use the
+ * vendor tag definitions set this way.
+ *
+ * Returns OK on success, or a negative error code.
+ */
+ static status_t setAsGlobalVendorTagDescriptor(const sp<VendorTagDescriptor>& desc);
+
+ /**
+ * Returns the global vendor tag descriptor used by this process.
+ * This will contain NULL if no vendor tags are defined.
+ */
+ static sp<VendorTagDescriptor> getGlobalVendorTagDescriptor();
+
+ /**
+ * Clears the global vendor tag descriptor used by this process.
+ */
+ static void clearGlobalVendorTagDescriptor();
+
+};
+
+} /* namespace android */
+
+
+#define VENDOR_TAG_DESCRIPTOR_H
+#endif /* VENDOR_TAG_DESCRIPTOR_H */
diff --git a/camera/include/camera/android/hardware/ICamera.h b/camera/include/camera/android/hardware/ICamera.h
new file mode 100644
index 0000000..315669e
--- /dev/null
+++ b/camera/include/camera/android/hardware/ICamera.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_H
+#define ANDROID_HARDWARE_ICAMERA_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <binder/Status.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class IGraphicBufferProducer;
+class Surface;
+
+namespace hardware {
+
+class ICameraClient;
+
+class ICamera: public android::IInterface
+{
+ /**
+ * Keep up-to-date with ICamera.aidl in frameworks/base
+ */
+public:
+ enum {
+ // Pass real YUV data in video buffers through ICameraClient.dataCallbackTimestamp().
+ VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV = 0,
+ // Pass metadata in video buffers through ICameraClient.dataCallbackTimestamp().
+ VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA = 1,
+ // Pass video buffers through IGraphicBufferProducer set with setVideoTarget().
+ VIDEO_BUFFER_MODE_BUFFER_QUEUE = 2,
+ };
+
+ DECLARE_META_INTERFACE(Camera);
+
+ virtual binder::Status disconnect() = 0;
+
+ // connect new client with existing camera remote
+ virtual status_t connect(const sp<ICameraClient>& client) = 0;
+
+ // prevent other processes from using this ICamera interface
+ virtual status_t lock() = 0;
+
+ // allow other processes to use this ICamera interface
+ virtual status_t unlock() = 0;
+
+ // pass the buffered IGraphicBufferProducer to the camera service
+ virtual status_t setPreviewTarget(
+ const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+
+ // set the preview callback flag to affect how the received frames from
+ // preview are handled. Enabling preview callback flags disables any active
+ // preview callback surface set by setPreviewCallbackTarget().
+ virtual void setPreviewCallbackFlag(int flag) = 0;
+ // set a buffer interface to use for client-received preview frames instead
+ // of preview callback buffers. Passing a valid interface here disables any
+ // active preview callbacks set by setPreviewCallbackFlag(). Passing NULL
+ // disables the use of the callback target.
+ virtual status_t setPreviewCallbackTarget(
+ const sp<IGraphicBufferProducer>& callbackProducer) = 0;
+
+ // start preview mode, must call setPreviewTarget first
+ virtual status_t startPreview() = 0;
+
+ // stop preview mode
+ virtual void stopPreview() = 0;
+
+ // get preview state
+ virtual bool previewEnabled() = 0;
+
+ // start recording mode
+ virtual status_t startRecording() = 0;
+
+ // stop recording mode
+ virtual void stopRecording() = 0;
+
+ // get recording state
+ virtual bool recordingEnabled() = 0;
+
+ // Release a recording frame that was received via ICameraClient::dataCallbackTimestamp.
+ virtual void releaseRecordingFrame(const sp<IMemory>& mem) = 0;
+
+ // Release a recording frame handle that was received via
+ // ICameraClient::recordingFrameHandleCallbackTimestamp.
+ virtual void releaseRecordingFrameHandle(native_handle_t *handle) = 0;
+
+ // auto focus
+ virtual status_t autoFocus() = 0;
+
+ // cancel auto focus
+ virtual status_t cancelAutoFocus() = 0;
+
+ /*
+ * take a picture.
+ * @param msgType the message type an application selectively turn on/off
+ * on a photo-by-photo basis. The supported message types are:
+ * CAMERA_MSG_SHUTTER, CAMERA_MSG_RAW_IMAGE, CAMERA_MSG_COMPRESSED_IMAGE,
+ * and CAMERA_MSG_POSTVIEW_FRAME. Any other message types will be ignored.
+ */
+ virtual status_t takePicture(int msgType) = 0;
+
+ // set preview/capture parameters - key/value pairs
+ virtual status_t setParameters(const String8& params) = 0;
+
+ // get preview/capture parameters - key/value pairs
+ virtual String8 getParameters() const = 0;
+
+ // send command to camera driver
+ virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
+
+
+ // Tell camera how to pass video buffers. videoBufferMode is one of VIDEO_BUFFER_MODE_*.
+ // Returns OK if the specified video buffer mode is supported. If videoBufferMode is
+ // VIDEO_BUFFER_MODE_BUFFER_QUEUE, setVideoTarget() must be called before starting video
+ // recording.
+ virtual status_t setVideoBufferMode(int32_t videoBufferMode) = 0;
+
+ // Set the video buffer producer for camera to use in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
+ virtual status_t setVideoTarget(
+ const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCamera: public android::BnInterface<ICamera>
+{
+public:
+ virtual status_t onTransact( uint32_t code,
+ const Parcel& data,
+ Parcel* reply,
+ uint32_t flags = 0);
+};
+
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/android/hardware/ICameraClient.h b/camera/include/camera/android/hardware/ICameraClient.h
new file mode 100644
index 0000000..f6ee311
--- /dev/null
+++ b/camera/include/camera/android/hardware/ICameraClient.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_APP_H
+#define ANDROID_HARDWARE_ICAMERA_APP_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <utils/Timers.h>
+#include <system/camera.h>
+
+namespace android {
+namespace hardware {
+
+class ICameraClient: public android::IInterface
+{
+public:
+ DECLARE_META_INTERFACE(CameraClient);
+
+ virtual void notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
+ virtual void dataCallback(int32_t msgType, const sp<IMemory>& data,
+ camera_frame_metadata_t *metadata) = 0;
+ virtual void dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& data) = 0;
+
+ // Invoked to send a recording frame handle with a timestamp. Call
+ // ICamera::releaseRecordingFrameHandle to release the frame handle.
+ virtual void recordingFrameHandleCallbackTimestamp(nsecs_t timestamp,
+ native_handle_t* handle) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCameraClient: public android::BnInterface<ICameraClient>
+{
+public:
+ virtual status_t onTransact( uint32_t code,
+ const Parcel& data,
+ Parcel* reply,
+ uint32_t flags = 0);
+};
+
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/CaptureRequest.h b/camera/include/camera/camera2/CaptureRequest.h
new file mode 100644
index 0000000..0180183
--- /dev/null
+++ b/camera/include/camera/camera2/CaptureRequest.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
+#define ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
+
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+#include <binder/Parcelable.h>
+#include <camera/CameraMetadata.h>
+
+namespace android {
+
+class Surface;
+
+namespace hardware {
+namespace camera2 {
+
+struct CaptureRequest : public Parcelable {
+
+ // those are needed so we can use a forward declaration of Surface, otherwise
+ // the type is incomplete when the ctor/dtors are generated. This has the added
+ // benefit that ctor/dtors are not inlined, which is good because they're not trivial
+ // (because of the vtable and Vector<>)
+ CaptureRequest();
+ CaptureRequest(const CaptureRequest& rhs);
+ CaptureRequest(CaptureRequest&& rhs) noexcept;
+ virtual ~CaptureRequest();
+
+ CameraMetadata mMetadata;
+ Vector<sp<Surface> > mSurfaceList;
+ bool mIsReprocess;
+
+ /**
+ * Keep impl up-to-date with CaptureRequest.java in frameworks/base
+ */
+ status_t readFromParcel(const android::Parcel* parcel) override;
+ status_t writeToParcel(android::Parcel* parcel) const override;
+};
+
+} // namespace camera2
+} // namespace hardware
+
+struct CaptureRequest :
+ public RefBase, public hardware::camera2::CaptureRequest {
+ public:
+ // Same as android::hardware::camera2::CaptureRequest, except that you can
+ // put this in an sp<>
+};
+
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/OutputConfiguration.h b/camera/include/camera/camera2/OutputConfiguration.h
new file mode 100644
index 0000000..8e641c7
--- /dev/null
+++ b/camera/include/camera/camera2/OutputConfiguration.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
+#define ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
+
+#include <gui/IGraphicBufferProducer.h>
+#include <binder/Parcelable.h>
+
+namespace android {
+
+class Surface;
+
+namespace hardware {
+namespace camera2 {
+namespace params {
+
+class OutputConfiguration : public android::Parcelable {
+public:
+
+ static const int INVALID_ROTATION;
+ static const int INVALID_SET_ID;
+ enum SurfaceType{
+ SURFACE_TYPE_UNKNOWN = -1,
+ SURFACE_TYPE_SURFACE_VIEW = 0,
+ SURFACE_TYPE_SURFACE_TEXTURE = 1
+ };
+ const std::vector<sp<IGraphicBufferProducer>>& getGraphicBufferProducers() const;
+ int getRotation() const;
+ int getSurfaceSetID() const;
+ int getSurfaceType() const;
+ int getWidth() const;
+ int getHeight() const;
+ bool isDeferred() const;
+ bool isShared() const;
+ /**
+ * Keep impl up-to-date with OutputConfiguration.java in frameworks/base
+ */
+ virtual status_t writeToParcel(android::Parcel* parcel) const override;
+
+ virtual status_t readFromParcel(const android::Parcel* parcel) override;
+
+ // getGraphicBufferProducer will be NULL
+ // getRotation will be INVALID_ROTATION
+ // getSurfaceSetID will be INVALID_SET_ID
+ OutputConfiguration();
+
+ // getGraphicBufferProducer will be NULL if error occurred
+ // getRotation will be INVALID_ROTATION if error occurred
+ // getSurfaceSetID will be INVALID_SET_ID if error occurred
+ OutputConfiguration(const android::Parcel& parcel);
+
+ OutputConfiguration(sp<IGraphicBufferProducer>& gbp, int rotation,
+ int surfaceSetID = INVALID_SET_ID);
+
+ bool operator == (const OutputConfiguration& other) const {
+ return ( mRotation == other.mRotation &&
+ mSurfaceSetID == other.mSurfaceSetID &&
+ mSurfaceType == other.mSurfaceType &&
+ mWidth == other.mWidth &&
+ mHeight == other.mHeight &&
+ mIsDeferred == other.mIsDeferred &&
+ mIsShared == other.mIsShared &&
+ gbpsEqual(other));
+ }
+ bool operator != (const OutputConfiguration& other) const {
+ return !(*this == other);
+ }
+ bool operator < (const OutputConfiguration& other) const {
+ if (*this == other) return false;
+ if (mSurfaceSetID != other.mSurfaceSetID) {
+ return mSurfaceSetID < other.mSurfaceSetID;
+ }
+ if (mSurfaceType != other.mSurfaceType) {
+ return mSurfaceType < other.mSurfaceType;
+ }
+ if (mWidth != other.mWidth) {
+ return mWidth < other.mWidth;
+ }
+ if (mHeight != other.mHeight) {
+ return mHeight < other.mHeight;
+ }
+ if (mRotation != other.mRotation) {
+ return mRotation < other.mRotation;
+ }
+ if (mIsDeferred != other.mIsDeferred) {
+ return mIsDeferred < other.mIsDeferred;
+ }
+ if (mIsShared != other.mIsShared) {
+ return mIsShared < other.mIsShared;
+ }
+ return gbpsLessThan(other);
+ }
+ bool operator > (const OutputConfiguration& other) const {
+ return (*this != other && !(*this < other));
+ }
+
+ bool gbpsEqual(const OutputConfiguration& other) const;
+ bool gbpsLessThan(const OutputConfiguration& other) const;
+private:
+ std::vector<sp<IGraphicBufferProducer>> mGbps;
+ int mRotation;
+ int mSurfaceSetID;
+ int mSurfaceType;
+ int mWidth;
+ int mHeight;
+ bool mIsDeferred;
+ bool mIsShared;
+ // helper function
+ static String16 readMaybeEmptyString16(const android::Parcel* parcel);
+};
+} // namespace params
+} // namespace camera2
+} // namespace hardware
+
+
+using hardware::camera2::params::OutputConfiguration;
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/SubmitInfo.h b/camera/include/camera/camera2/SubmitInfo.h
new file mode 100644
index 0000000..8f271c0
--- /dev/null
+++ b/camera/include/camera/camera2/SubmitInfo.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
+#define ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+namespace android {
+namespace hardware {
+namespace camera2 {
+namespace utils {
+
+struct SubmitInfo : public android::Parcelable {
+public:
+
+ int32_t mRequestId;
+ int64_t mLastFrameNumber;
+
+ virtual status_t writeToParcel(android::Parcel *parcel) const override;
+ virtual status_t readFromParcel(const android::Parcel* parcel) override;
+
+};
+
+} // namespace utils
+} // namespace camera2
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/ndk/NdkCameraCaptureSession.h b/camera/include/camera/ndk/NdkCameraCaptureSession.h
new file mode 100644
index 0000000..d96f538
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraCaptureSession.h
@@ -0,0 +1,598 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraCaptureSession.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+#include <sys/cdefs.h>
+
+#include <android/native_window.h>
+#include "NdkCameraError.h"
+#include "NdkCameraMetadata.h"
+
+#ifndef _NDK_CAMERA_CAPTURE_SESSION_H
+#define _NDK_CAMERA_CAPTURE_SESSION_H
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+/**
+ * ACameraCaptureSession is an opaque type that manages frame captures of a camera device.
+ *
+ * A pointer can be obtained using {@link ACameraDevice_createCaptureSession} method.
+ */
+typedef struct ACameraCaptureSession ACameraCaptureSession;
+
+/**
+ * The definition of camera capture session state callback.
+ *
+ * @param context The optional application context provided by user in
+ * {@link ACameraCaptureSession_stateCallbacks}.
+ * @param session The camera capture session whose state is changing.
+ */
+typedef void (*ACameraCaptureSession_stateCallback)(void* context, ACameraCaptureSession *session);
+
+typedef struct ACameraCaptureSession_stateCallbacks {
+ /// optional application context.
+ void* context;
+
+ /**
+ * This callback is called when the session is closed and deleted from memory.
+ *
+ * <p>A session is closed when {@link ACameraCaptureSession_close} is called, a new session
+ * is created by the parent camera device,
+ * or when the parent camera device is closed (either by the user closing the device,
+ * or due to a camera device disconnection or fatal error).</p>
+ *
+ * <p>Once this callback is called, all access to this ACameraCaptureSession object will cause
+ * a crash.</p>
+ */
+ ACameraCaptureSession_stateCallback onClosed;
+
+ /**
+ * This callback is called every time the session has no more capture requests to process.
+ *
+ * <p>This callback will be invoked any time the session finishes processing
+ * all of its active capture requests, and no repeating request or burst is set up.</p>
+ */
+ ACameraCaptureSession_stateCallback onReady;
+
+ /**
+ * This callback is called when the session starts actively processing capture requests.
+ *
+ * <p>If the session runs out of capture requests to process and calls {@link onReady},
+ * then this callback will be invoked again once new requests are submitted for capture.</p>
+ */
+ ACameraCaptureSession_stateCallback onActive;
+} ACameraCaptureSession_stateCallbacks;
+
+/// Enum for describing error reason in {@link ACameraCaptureFailure}
+enum {
+ /**
+ * The capture session has dropped this frame due to an
+ * {@link ACameraCaptureSession_abortCaptures} call.
+ */
+ CAPTURE_FAILURE_REASON_FLUSHED = 0,
+
+ /**
+ * The capture session has dropped this frame due to an error in the framework.
+ */
+ CAPTURE_FAILURE_REASON_ERROR
+};
+
+/// Struct to describe a capture failure
+typedef struct ACameraCaptureFailure {
+ /**
+ * The frame number associated with this failed capture.
+ *
+ * <p>Whenever a request has been processed, regardless of failed capture or success,
+ * it gets a unique frame number assigned to its future result/failed capture.</p>
+ *
+ * <p>This value monotonically increments, starting with 0,
+ * for every new result or failure; and the scope is the lifetime of the
+ * {@link ACameraDevice}.</p>
+ */
+ int64_t frameNumber;
+
+ /**
+ * Determine why the request was dropped, whether due to an error or to a user
+ * action.
+ *
+ * @see CAPTURE_FAILURE_REASON_ERROR
+ * @see CAPTURE_FAILURE_REASON_FLUSHED
+ */
+ int reason;
+
+ /**
+ * The sequence ID for this failed capture that was returned by the
+ * {@link ACameraCaptureSession_capture} or {@link ACameraCaptureSession_setRepeatingRequest}.
+ *
+ * <p>The sequence ID is a unique monotonically increasing value starting from 0,
+ * incremented every time a new group of requests is submitted to the ACameraDevice.</p>
+ */
+ int sequenceId;
+
+ /**
+ * Determine if the image was captured from the camera.
+ *
+ * <p>If the image was not captured, no image buffers will be available.
+ * If the image was captured, then image buffers may be available.</p>
+ *
+ */
+ bool wasImageCaptured;
+} ACameraCaptureFailure;
+
+/**
+ * The definition of camera capture start callback.
+ *
+ * @param context The optional application context provided by user in
+ * {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param request The capture request that is starting. Note that this pointer points to a copy of
+ * capture request sent by application, so the address is different to what
+ * application sent but the content will match. This request will be freed by
+ * framework immediately after this callback returns.
+ * @param timestamp The timestamp when the capture is started. This timestmap will match
+ * {@link ACAMERA_SENSOR_TIMESTAMP} of the {@link ACameraMetadata} in
+ * {@link ACameraCaptureSession_captureCallbacks#onCaptureCompleted} callback.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_start)(
+ void* context, ACameraCaptureSession* session,
+ const ACaptureRequest* request, int64_t timestamp);
+
+/**
+ * The definition of camera capture progress/result callback.
+ *
+ * @param context The optional application context provided by user in
+ * {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param request The capture request of interest. Note that this pointer points to a copy of
+ * capture request sent by application, so the address is different to what
+ * application sent but the content will match. This request will be freed by
+ * framework immediately after this callback returns.
+ * @param result The capture result metadata reported by camera device. The memory is managed by
+ * camera framework. Do not access this pointer after this callback returns.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_result)(
+ void* context, ACameraCaptureSession* session,
+ ACaptureRequest* request, const ACameraMetadata* result);
+
+/**
+ * The definition of camera capture failure callback.
+ *
+ * @param context The optional application context provided by user in
+ * {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param request The capture request of interest. Note that this pointer points to a copy of
+ * capture request sent by application, so the address is different to what
+ * application sent but the content will match. This request will be freed by
+ * framework immediately after this callback returns.
+ * @param failure The {@link ACameraCaptureFailure} desribes the capture failure. The memory is
+ * managed by camera framework. Do not access this pointer after this callback
+ * returns.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_failed)(
+ void* context, ACameraCaptureSession* session,
+ ACaptureRequest* request, ACameraCaptureFailure* failure);
+
+/**
+ * The definition of camera sequence end callback.
+ *
+ * @param context The optional application context provided by user in
+ * {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param sequenceId The capture sequence ID of the finished sequence.
+ * @param frameNumber The frame number of the last frame of this sequence.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_sequenceEnd)(
+ void* context, ACameraCaptureSession* session,
+ int sequenceId, int64_t frameNumber);
+
+/**
+ * The definition of camera sequence aborted callback.
+ *
+ * @param context The optional application context provided by user in
+ * {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param sequenceId The capture sequence ID of the aborted sequence.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_sequenceAbort)(
+ void* context, ACameraCaptureSession* session,
+ int sequenceId);
+
+/**
+ * The definition of camera buffer lost callback.
+ *
+ * @param context The optional application context provided by user in
+ * {@link ACameraCaptureSession_captureCallbacks}.
+ * @param session The camera capture session of interest.
+ * @param request The capture request of interest. Note that this pointer points to a copy of
+ * capture request sent by application, so the address is different to what
+ * application sent but the content will match. This request will be freed by
+ * framework immediately after this callback returns.
+ * @param window The {@link ANativeWindow} that the lost buffer would have been sent to.
+ * @param frameNumber The frame number of the lost buffer.
+ */
+typedef void (*ACameraCaptureSession_captureCallback_bufferLost)(
+ void* context, ACameraCaptureSession* session,
+ ACaptureRequest* request, ANativeWindow* window, int64_t frameNumber);
+
+typedef struct ACameraCaptureSession_captureCallbacks {
+ /// optional application context.
+ void* context;
+
+ /**
+ * This callback is called when the camera device has started capturing
+ * the output image for the request, at the beginning of image exposure.
+ *
+ * <p>This callback is invoked right as
+ * the capture of a frame begins, so it is the most appropriate time
+ * for playing a shutter sound, or triggering UI indicators of capture.</p>
+ *
+ * <p>The request that is being used for this capture is provided, along
+ * with the actual timestamp for the start of exposure.
+ * This timestamp matches the timestamps that will be
+ * included in {@link ACAMERA_SENSOR_TIMESTAMP} of the {@link ACameraMetadata} in
+ * {@link onCaptureCompleted} callback,
+ * and in the buffers sent to each output ANativeWindow. These buffer
+ * timestamps are accessible through, for example,
+ * {@link AImage_getTimestamp} or
+ * <a href="http://developer.android.com/reference/android/graphics/SurfaceTexture.html#getTimestamp()">
+ * android.graphics.SurfaceTexture#getTimestamp()</a>.</p>
+ *
+ * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+ * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
+ *
+ */
+ ACameraCaptureSession_captureCallback_start onCaptureStarted;
+
+ /**
+ * This callback is called when an image capture makes partial forward progress; some
+ * (but not all) results from an image capture are available.
+ *
+ * <p>The result provided here will contain some subset of the fields of
+ * a full result. Multiple {@link onCaptureProgressed} calls may happen per
+ * capture; a given result field will only be present in one partial
+ * capture at most. The final {@link onCaptureCompleted} call will always
+ * contain all the fields (in particular, the union of all the fields of all
+ * the partial results composing the total result).</p>
+ *
+ * <p>For each request, some result data might be available earlier than others. The typical
+ * delay between each partial result (per request) is a single frame interval.
+ * For performance-oriented use-cases, applications should query the metadata they need
+ * to make forward progress from the partial results and avoid waiting for the completed
+ * result.</p>
+ *
+ * <p>For a particular request, {@link onCaptureProgressed} may happen before or after
+ * {@link onCaptureStarted}.</p>
+ *
+ * <p>Each request will generate at least `1` partial results, and at most
+ * {@link ACAMERA_REQUEST_PARTIAL_RESULT_COUNT} partial results.</p>
+ *
+ * <p>Depending on the request settings, the number of partial results per request
+ * will vary, although typically the partial count could be the same as long as the
+ * camera device subsystems enabled stay the same.</p>
+ *
+ * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+ * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
+ */
+ ACameraCaptureSession_captureCallback_result onCaptureProgressed;
+
+ /**
+ * This callback is called when an image capture has fully completed and all the
+ * result metadata is available.
+ *
+ * <p>This callback will always fire after the last {@link onCaptureProgressed};
+ * in other words, no more partial results will be delivered once the completed result
+ * is available.</p>
+ *
+ * <p>For performance-intensive use-cases where latency is a factor, consider
+ * using {@link onCaptureProgressed} instead.</p>
+ *
+ * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+ * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
+ */
+ ACameraCaptureSession_captureCallback_result onCaptureCompleted;
+
+ /**
+ * This callback is called instead of {@link onCaptureCompleted} when the
+ * camera device failed to produce a capture result for the
+ * request.
+ *
+ * <p>Other requests are unaffected, and some or all image buffers from
+ * the capture may have been pushed to their respective output
+ * streams.</p>
+ *
+ * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+ * submitted, but the contents the ACaptureRequest will match what application submitted.</p>
+ *
+ * @see ACameraCaptureFailure
+ */
+ ACameraCaptureSession_captureCallback_failed onCaptureFailed;
+
+ /**
+ * This callback is called independently of the others in {@link ACameraCaptureSession_captureCallbacks},
+ * when a capture sequence finishes and all capture result
+ * or capture failure for it have been returned via this {@link ACameraCaptureSession_captureCallbacks}.
+ *
+ * <p>In total, there will be at least one result/failure returned by this listener
+ * before this callback is invoked. If the capture sequence is aborted before any
+ * requests have been processed, {@link onCaptureSequenceAborted} is invoked instead.</p>
+ */
+ ACameraCaptureSession_captureCallback_sequenceEnd onCaptureSequenceCompleted;
+
+ /**
+ * This callback is called independently of the others in {@link ACameraCaptureSession_captureCallbacks},
+ * when a capture sequence aborts before any capture result
+ * or capture failure for it have been returned via this {@link ACameraCaptureSession_captureCallbacks}.
+ *
+ * <p>Due to the asynchronous nature of the camera device, not all submitted captures
+ * are immediately processed. It is possible to clear out the pending requests
+ * by a variety of operations such as {@link ACameraCaptureSession_stopRepeating} or
+ * {@link ACameraCaptureSession_abortCaptures}. When such an event happens,
+ * {@link onCaptureSequenceCompleted} will not be called.</p>
+ */
+ ACameraCaptureSession_captureCallback_sequenceAbort onCaptureSequenceAborted;
+
+ /**
+ * This callback is called if a single buffer for a capture could not be sent to its
+ * destination ANativeWindow.
+ *
+ * <p>If the whole capture failed, then {@link onCaptureFailed} will be called instead. If
+ * some but not all buffers were captured but the result metadata will not be available,
+ * then onCaptureFailed will be invoked with {@link ACameraCaptureFailure#wasImageCaptured}
+ * returning true, along with one or more calls to {@link onCaptureBufferLost} for the
+ * failed outputs.</p>
+ *
+ * <p>Note that the ACaptureRequest pointer in the callback will not match what application has
+ * submitted, but the contents the ACaptureRequest will match what application submitted.
+ * The ANativeWindow pointer will always match what application submitted in
+ * {@link ACameraDevice_createCaptureSession}</p>
+ *
+ */
+ ACameraCaptureSession_captureCallback_bufferLost onCaptureBufferLost;
+} ACameraCaptureSession_captureCallbacks;
+
+enum {
+ CAPTURE_SEQUENCE_ID_NONE = -1
+};
+
+/**
+ * Close this capture session.
+ *
+ * <p>Closing a session frees up the target output Surfaces of the session for reuse with either
+ * a new session, or to other APIs that can draw to Surfaces.</p>
+ *
+ * <p>Note that creating a new capture session with {@link ACameraDevice_createCaptureSession}
+ * will close any existing capture session automatically, and call the older session listener's
+ * {@link ACameraCaptureSession_stateCallbacks#onClosed} callback. Using
+ * {@link ACameraDevice_createCaptureSession} directly without closing is the recommended approach
+ * for quickly switching to a new session, since unchanged target outputs can be reused more
+ * efficiently.</p>
+ *
+ * <p>After a session is closed and before {@link ACameraCaptureSession_stateCallbacks#onClosed}
+ * is called, all methods invoked on the session will return {@link ACAMERA_ERROR_SESSION_CLOSED},
+ * and any repeating requests are stopped (as if {@link ACameraCaptureSession_stopRepeating} was
+ * called). However, any in-progress capture requests submitted to the session will be completed as
+ * normal; once all captures have completed and the session has been torn down,
+ * {@link ACameraCaptureSession_stateCallbacks#onClosed} callback will be called and the seesion
+ * will be removed from memory.</p>
+ *
+ * <p>Closing a session is idempotent; closing more than once has no effect.</p>
+ *
+ * @param session the capture session of interest
+ */
+void ACameraCaptureSession_close(ACameraCaptureSession* session);
+
+struct ACameraDevice;
+typedef struct ACameraDevice ACameraDevice;
+
+/**
+ * Get the ACameraDevice pointer associated with this capture session in the device argument
+ * if the method succeeds.
+ *
+ * @param session the capture session of interest
+ * @param device the {@link ACameraDevice} associated with session. Will be set to NULL
+ * if the session is closed or this method fails.
+ * @return <ul><li>
+ * {@link ACAMERA_OK} if the method call succeeds. The {@link ACameraDevice}
+ * will be stored in device argument</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or device is NULL</li>
+ * <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ *
+ */
+camera_status_t ACameraCaptureSession_getDevice(
+ ACameraCaptureSession* session, /*out*/ACameraDevice** device);
+
+/**
+ * Submit an array of requests to be captured in sequence as a burst in the minimum of time possible.
+ *
+ * <p>The burst will be captured in the minimum amount of time possible, and will not be
+ * interleaved with requests submitted by other capture or repeat calls.</p>
+ *
+ * <p>Each capture produces one {@link ACameraMetadata} as a capture result and image buffers for
+ * one or more target {@link ANativeWindow}s. The target ANativeWindows (set with
+ * {@link ACaptureRequest_addTarget}) must be a subset of the ANativeWindow provided when
+ * this capture session was created.</p>
+ *
+ * @param session the capture session of interest
+ * @param callbacks the {@link ACameraCaptureSession_captureCallbacks} to be associated this capture
+ * sequence. No capture callback will be fired if this is set to NULL.
+ * @param numRequests number of requests in requests argument. Must be at least 1.
+ * @param requests an array of {@link ACaptureRequest} to be captured. Length must be at least
+ * numRequests.
+ * @param captureSequenceId the capture sequence ID associated with this capture method invocation
+ * will be stored here if this argument is not NULL and the method call succeeds.
+ * When this argument is set to NULL, the capture sequence ID will not be returned.
+ *
+ * @return <ul><li>
+ * {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ * if it is not NULL.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or requests is NULL, or
+ * if numRequests < 1</li>
+ * <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ */
+camera_status_t ACameraCaptureSession_capture(
+ ACameraCaptureSession* session,
+ /*optional*/ACameraCaptureSession_captureCallbacks* callbacks,
+ int numRequests, ACaptureRequest** requests,
+ /*optional*/int* captureSequenceId);
+
+/**
+ * Request endlessly repeating capture of a sequence of images by this capture session.
+ *
+ * <p>With this method, the camera device will continually capture images,
+ * cycling through the settings in the provided list of
+ * {@link ACaptureRequest}, at the maximum rate possible.</p>
+ *
+ * <p>If a request is submitted through {@link ACameraCaptureSession_capture},
+ * the current repetition of the request list will be
+ * completed before the higher-priority request is handled. This guarantees
+ * that the application always receives a complete repeat burst captured in
+ * minimal time, instead of bursts interleaved with higher-priority
+ * captures, or incomplete captures.</p>
+ *
+ * <p>Repeating burst requests are a simple way for an application to
+ * maintain a preview or other continuous stream of frames where each
+ * request is different in a predicatable way, without having to continually
+ * submit requests through {@link ACameraCaptureSession_capture}.</p>
+ *
+ * <p>To stop the repeating capture, call {@link ACameraCaptureSession_stopRepeating}. Any
+ * ongoing burst will still be completed, however. Calling
+ * {@link ACameraCaptureSession_abortCaptures} will also clear the request.</p>
+ *
+ * <p>Calling this method will replace a previously-set repeating requests
+ * set up by this method, although any in-progress burst will be completed before the new repeat
+ * burst will be used.</p>
+ *
+ * @param session the capture session of interest
+ * @param callbacks the {@link ACameraCaptureSession_captureCallbacks} to be associated with this
+ * capture sequence. No capture callback will be fired if callbacks is set to NULL.
+ * @param numRequests number of requests in requests array. Must be at least 1.
+ * @param requests an array of {@link ACaptureRequest} to be captured. Length must be at least
+ * numRequests.
+ * @param captureSequenceId the capture sequence ID associated with this capture method invocation
+ * will be stored here if this argument is not NULL and the method call succeeds.
+ * When this argument is set to NULL, the capture sequence ID will not be returned.
+ *
+ * @return <ul><li>
+ * {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ * if it is not NULL.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session or requests is NULL, or
+ * if numRequests < 1</li>
+ * <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ */
+camera_status_t ACameraCaptureSession_setRepeatingRequest(
+ ACameraCaptureSession* session,
+ /*optional*/ACameraCaptureSession_captureCallbacks* callbacks,
+ int numRequests, ACaptureRequest** requests,
+ /*optional*/int* captureSequenceId);
+
+/**
+ * Cancel any ongoing repeating capture set by {@link ACameraCaptureSession_setRepeatingRequest}.
+ * Has no effect on requests submitted through {@link ACameraCaptureSession_capture}.
+ *
+ * <p>Any currently in-flight captures will still complete, as will any burst that is
+ * mid-capture. To ensure that the device has finished processing all of its capture requests
+ * and is in ready state, wait for the {@link ACameraCaptureSession_stateCallbacks#onReady} callback
+ * after calling this method.</p>
+ *
+ * @param session the capture session of interest
+ *
+ * @return <ul><li>
+ * {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ * if it is not NULL.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session is NULL.</li>
+ * <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ */
+camera_status_t ACameraCaptureSession_stopRepeating(ACameraCaptureSession* session);
+
+/**
+ * Discard all captures currently pending and in-progress as fast as possible.
+ *
+ * <p>The camera device will discard all of its current work as fast as possible. Some in-flight
+ * captures may complete successfully and call
+ * {@link ACameraCaptureSession_captureCallbacks#onCaptureCompleted},
+ * while others will trigger their {@link ACameraCaptureSession_captureCallbacks#onCaptureFailed}
+ * callbacks. If a repeating request list is set, it will be cleared.</p>
+ *
+ * <p>This method is the fastest way to switch the camera device to a new session with
+ * {@link ACameraDevice_createCaptureSession}, at the cost of discarding in-progress
+ * work. It must be called before the new session is created. Once all pending requests are
+ * either completed or thrown away, the {@link ACameraCaptureSession_stateCallbacks#onReady}
+ * callback will be called, if the session has not been closed. Otherwise, the
+ * {@link ACameraCaptureSession_stateCallbacks#onClosed}
+ * callback will be fired when a new session is created by the camera device and the previous
+ * session is being removed from memory.</p>
+ *
+ * <p>Cancelling will introduce at least a brief pause in the stream of data from the camera
+ * device, since once the camera device is emptied, the first new request has to make it through
+ * the entire camera pipeline before new output buffers are produced.</p>
+ *
+ * <p>This means that using ACameraCaptureSession_abortCaptures to simply remove pending requests is
+ * not recommended; it's best used for quickly switching output configurations, or for cancelling
+ * long in-progress requests (such as a multi-second capture).</p>
+ *
+ * @param session the capture session of interest
+ *
+ * @return <ul><li>
+ * {@link ACAMERA_OK} if the method succeeds. captureSequenceId will be filled
+ * if it is not NULL.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if session is NULL.</li>
+ * <li>{@link ACAMERA_ERROR_SESSION_CLOSED} if the capture session has been closed</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons</li></ul>
+ */
+camera_status_t ACameraCaptureSession_abortCaptures(ACameraCaptureSession* session);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_CAPTURE_SESSION_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCameraDevice.h b/camera/include/camera/ndk/NdkCameraDevice.h
new file mode 100644
index 0000000..9b7f6f4
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraDevice.h
@@ -0,0 +1,669 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraDevice.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+#include <sys/cdefs.h>
+
+#include <android/native_window.h>
+#include "NdkCameraError.h"
+#include "NdkCaptureRequest.h"
+#include "NdkCameraCaptureSession.h"
+
+#ifndef _NDK_CAMERA_DEVICE_H
+#define _NDK_CAMERA_DEVICE_H
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+/**
+ * ACameraDevice is opaque type that provides access to a camera device.
+ *
+ * A pointer can be obtained using {@link ACameraManager_openCamera} method.
+ */
+typedef struct ACameraDevice ACameraDevice;
+
+/// Enum for ACameraDevice_ErrorStateCallback error code
+enum {
+ /**
+ * The camera device is in use already.
+ */
+ ERROR_CAMERA_IN_USE = 1,
+
+ /**
+ * The system-wide limit for number of open cameras or camera resources has
+ * been reached, and more camera devices cannot be opened until previous
+ * instances are closed.
+ */
+ ERROR_MAX_CAMERAS_IN_USE = 2,
+
+ /**
+ * The camera is disabled due to a device policy, and cannot be opened.
+ */
+ ERROR_CAMERA_DISABLED = 3,
+
+ /**
+ * The camera device has encountered a fatal error.
+ * <p>The camera device needs to be re-opened to be used again.</p>
+ */
+ ERROR_CAMERA_DEVICE = 4,
+
+ /**
+ * The camera service has encountered a fatal error.
+ * <p>The Android device may need to be shut down and restarted to restore
+ * camera function, or there may be a persistent hardware problem.
+ * An attempt at recovery may be possible by closing the
+ * CameraDevice and the CameraManager, and trying to acquire all resources
+ * again from scratch.</p>
+ */
+ ERROR_CAMERA_SERVICE = 5
+};
+
+/**
+ * Camera device state callbacks to be used in {@link ACameraDevice_stateCallbacks}.
+ *
+ * @param context The optional context in {@link ACameraDevice_stateCallbacks} will be
+ * passed to this callback.
+ * @param device The {@link ACameraDevice} that is being disconnected.
+ */
+typedef void (*ACameraDevice_StateCallback)(void* context, ACameraDevice* device);
+
+/**
+ * Camera device error state callbacks to be used in {@link ACameraDevice_stateCallbacks}.
+ *
+ * @param context The optional context in {@link ACameraDevice_stateCallbacks} will be
+ * passed to this callback.
+ * @param device The {@link ACameraDevice} that is being disconnected.
+ * @param error The error code describes the cause of this error callback. See the folowing
+ * links for more detail.
+ *
+ * @see ERROR_CAMERA_IN_USE
+ * @see ERROR_MAX_CAMERAS_IN_USE
+ * @see ERROR_CAMERA_DISABLED
+ * @see ERROR_CAMERA_DEVICE
+ * @see ERROR_CAMERA_SERVICE
+ */
+typedef void (*ACameraDevice_ErrorStateCallback)(void* context, ACameraDevice* device, int error);
+
+typedef struct ACameraDevice_StateCallbacks {
+ /// optional application context.
+ void* context;
+
+ /**
+ * The function is called when a camera device is no longer available for use.
+ *
+ * <p>Any attempt to call API methods on this ACameraDevice will return
+ * {@link ACAMERA_ERROR_CAMERA_DISCONNECTED}. The disconnection could be due to a
+ * change in security policy or permissions; the physical disconnection
+ * of a removable camera device; or the camera being needed for a
+ * higher-priority camera API client.</p>
+ *
+ * <p>Application should clean up the camera with {@link ACameraDevice_close} after
+ * this happens, as it is not recoverable until the camera can be opened
+ * again.</p>
+ *
+ */
+ ACameraDevice_StateCallback onDisconnected;
+
+ /**
+ * The function called when a camera device has encountered a serious error.
+ *
+ * <p>This indicates a failure of the camera device or camera service in some way.
+ * Any attempt to call API methods on this ACameraDevice in the future will return
+ * {@link ACAMERA_ERROR_CAMERA_DISCONNECTED}.</p>
+ *
+ * <p>There may still be capture completion or camera stream callbacks that will be called
+ * after this error is received.</p>
+ *
+ * <p>Application should clean up the camera with {@link ACameraDevice_close} after this
+ * happens. Further attempts at recovery are error-code specific.</p>
+ *
+ */
+ ACameraDevice_ErrorStateCallback onError;
+} ACameraDevice_stateCallbacks;
+
+/**
+ * Close the connection and free this ACameraDevice synchronously. Access to the ACameraDevice
+ * after calling this method will cause a crash.
+ *
+ * <p>After this call, all calls to the active ACameraCaptureSession associated to this
+ * ACameraDevice will return {@link ACAMERA_ERROR_SESSION_CLOSED} except for calls to
+ * {@link ACameraCaptureSession_close}.</p>
+ *
+ * <p>This method will stop all repeating captures sent via
+ * {@link ACameraCaptureSession_setRepeatingRequest} and block until all capture requests sent via
+ * {@link ACameraCaptureSession_capture} is complete. Once the method returns, the camera device
+ * will be removed from memory and access to the closed camera device pointer will cause a crash.</p>
+ *
+ * @param device the camera device to be closed
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if device is NULL.</li></ul>
+ */
+camera_status_t ACameraDevice_close(ACameraDevice* device);
+
+/**
+ * Return the camera id associated with this camera device.
+ *
+ * @param device the camera device to be closed
+ *
+ * @return camera ID string. The returned string is managed by framework and should not be
+ * delete/free by the application. Also the returned string must not be used after the device
+ * has been closed.
+ */
+const char* ACameraDevice_getId(const ACameraDevice* device);
+
+typedef enum {
+ /**
+ * Create a request suitable for a camera preview window. Specifically, this
+ * means that high frame rate is given priority over the highest-quality
+ * post-processing. These requests would normally be used with the
+ * {@link ACameraCaptureSession_setRepeatingRequest} method.
+ * This template is guaranteed to be supported on all camera devices.
+ *
+ * @see ACameraDevice_createCaptureRequest
+ */
+ TEMPLATE_PREVIEW = 1,
+
+ /**
+ * Create a request suitable for still image capture. Specifically, this
+ * means prioritizing image quality over frame rate. These requests would
+ * commonly be used with the {@link ACameraCaptureSession_capture} method.
+ * This template is guaranteed to be supported on all camera devices.
+ *
+ * @see ACameraDevice_createCaptureRequest
+ */
+ TEMPLATE_STILL_CAPTURE = 2,
+
+ /**
+ * Create a request suitable for video recording. Specifically, this means
+ * that a stable frame rate is used, and post-processing is set for
+ * recording quality. These requests would commonly be used with the
+ * {@link ACameraCaptureSession_setRepeatingRequest} method.
+ * This template is guaranteed to be supported on all camera devices.
+ *
+ * @see ACameraDevice_createCaptureRequest
+ */
+ TEMPLATE_RECORD = 3,
+
+ /**
+ * Create a request suitable for still image capture while recording
+ * video. Specifically, this means maximizing image quality without
+ * disrupting the ongoing recording. These requests would commonly be used
+ * with the {@link ACameraCaptureSession_capture} method while a request based on
+ * {@link TEMPLATE_RECORD} is is in use with {@link ACameraCaptureSession_setRepeatingRequest}.
+ * This template is guaranteed to be supported on all camera devices.
+ *
+ * @see ACameraDevice_createCaptureRequest
+ */
+ TEMPLATE_VIDEO_SNAPSHOT = 4,
+
+ /**
+ * Create a request suitable for zero shutter lag still capture. This means
+ * means maximizing image quality without compromising preview frame rate.
+ * AE/AWB/AF should be on auto mode.
+ *
+ * @see ACameraDevice_createCaptureRequest
+ */
+ TEMPLATE_ZERO_SHUTTER_LAG = 5,
+
+ /**
+ * A basic template for direct application control of capture
+ * parameters. All automatic control is disabled (auto-exposure, auto-white
+ * balance, auto-focus), and post-processing parameters are set to preview
+ * quality. The manual capture parameters (exposure, sensitivity, and so on)
+ * are set to reasonable defaults, but should be overriden by the
+ * application depending on the intended use case.
+ * This template is guaranteed to be supported on camera devices that support the
+ * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR} capability.
+ *
+ * @see ACameraDevice_createCaptureRequest
+ */
+ TEMPLATE_MANUAL = 6,
+} ACameraDevice_request_template;
+
+/**
+ * Create a ACaptureRequest for capturing images, initialized with template
+ * for a target use case.
+ *
+ * <p>The settings are chosen to be the best options for this camera device,
+ * so it is not recommended to reuse the same request for a different camera device.</p>
+ *
+ * @param device the camera device of interest
+ * @param templateId the type of capture request to be created.
+ * See {@link ACameraDevice_request_template}.
+ * @param request the output request will be stored here if the method call succeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds. The created capture request will be
+ * filled in request argument.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if device or request is NULL, templateId
+ * is undefined or camera device does not support requested template.
+ * </li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error.</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ *
+ * @see TEMPLATE_PREVIEW
+ * @see TEMPLATE_RECORD
+ * @see TEMPLATE_STILL_CAPTURE
+ * @see TEMPLATE_VIDEO_SNAPSHOT
+ * @see TEMPLATE_MANUAL
+ */
+camera_status_t ACameraDevice_createCaptureRequest(
+ const ACameraDevice* device, ACameraDevice_request_template templateId,
+ /*out*/ACaptureRequest** request);
+
+
+typedef struct ACaptureSessionOutputContainer ACaptureSessionOutputContainer;
+
+typedef struct ACaptureSessionOutput ACaptureSessionOutput;
+
+/**
+ * Create a capture session output container.
+ *
+ * <p>The container is used in {@link ACameraDevice_createCaptureSession} method to create a capture
+ * session. Use {@link ACaptureSessionOutputContainer_free} to free the container and its memory
+ * after application no longer needs the ACaptureSessionOutputContainer.</p>
+ *
+ * @param container the output {@link ACaptureSessionOutputContainer} will be stored here if the
+ * method call succeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds. The created container will be
+ * filled in container argument.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container is NULL.</li></ul>
+ */
+camera_status_t ACaptureSessionOutputContainer_create(
+ /*out*/ACaptureSessionOutputContainer** container);
+
+/**
+ * Free a capture session output container.
+ *
+ * @param container the {@link ACaptureSessionOutputContainer} to be freed.
+ *
+ * @see ACaptureSessionOutputContainer_create
+ */
+void ACaptureSessionOutputContainer_free(ACaptureSessionOutputContainer* container);
+
+/**
+ * Create a ACaptureSessionOutput object.
+ *
+ * <p>The ACaptureSessionOutput is used in {@link ACaptureSessionOutputContainer_add} method to add
+ * an output {@link ANativeWindow} to ACaptureSessionOutputContainer. Use
+ * {@link ACaptureSessionOutput_free} to free the object and its memory after application no longer
+ * needs the {@link ACaptureSessionOutput}.</p>
+ *
+ * @param anw the {@link ANativeWindow} to be associated with the {@link ACaptureSessionOutput}
+ * @param output the output {@link ACaptureSessionOutput} will be stored here if the
+ * method call succeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds. The created container will be
+ * filled in the output argument.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if anw or output is NULL.</li></ul>
+ *
+ * @see ACaptureSessionOutputContainer_add
+ */
+camera_status_t ACaptureSessionOutput_create(
+ ANativeWindow* anw, /*out*/ACaptureSessionOutput** output);
+
+/**
+ * Free a ACaptureSessionOutput object.
+ *
+ * @param output the {@link ACaptureSessionOutput} to be freed.
+ *
+ * @see ACaptureSessionOutput_create
+ */
+void ACaptureSessionOutput_free(ACaptureSessionOutput* output);
+
+/**
+ * Add an {@link ACaptureSessionOutput} object to {@link ACaptureSessionOutputContainer}.
+ *
+ * @param container the {@link ACaptureSessionOutputContainer} of interest.
+ * @param output the output {@link ACaptureSessionOutput} to be added to container.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container or output is NULL.</li></ul>
+ */
+camera_status_t ACaptureSessionOutputContainer_add(
+ ACaptureSessionOutputContainer* container, const ACaptureSessionOutput* output);
+
+/**
+ * Remove an {@link ACaptureSessionOutput} object from {@link ACaptureSessionOutputContainer}.
+ *
+ * <p>This method has no effect if the ACaptureSessionOutput does not exist in
+ * ACaptureSessionOutputContainer.</p>
+ *
+ * @param container the {@link ACaptureSessionOutputContainer} of interest.
+ * @param output the output {@link ACaptureSessionOutput} to be removed from container.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if container or output is NULL.</li></ul>
+ */
+camera_status_t ACaptureSessionOutputContainer_remove(
+ ACaptureSessionOutputContainer* container, const ACaptureSessionOutput* output);
+
+/**
+ * Create a new camera capture session by providing the target output set of {@link ANativeWindow}
+ * to the camera device.
+ *
+ * <p>If there is a preexisting session, the previous session will be closed
+ * automatically. However, app still needs to call {@link ACameraCaptureSession_close} on previous
+ * session. Otherwise the resources held by previous session will NOT be freed.</p>
+ *
+ * <p>The active capture session determines the set of potential output {@link ANativeWindow}s for
+ * the camera device for each capture request. A given request may use all
+ * or only some of the outputs. Once the ACameraCaptureSession is created, requests can be
+ * submitted with {@link ACameraCaptureSession_capture} or
+ * {@link ACameraCaptureSession_setRepeatingRequest}.</p>
+ *
+ * <p>Often the {@link ANativeWindow} used with this method can be obtained from a <a href=
+ * "http://developer.android.com/reference/android/view/Surface.html">Surface</a> java object by
+ * {@link ANativeWindow_fromSurface} NDK method. Surfaces or ANativeWindow suitable for inclusion as a camera
+ * output can be created for various use cases and targets:</p>
+ *
+ * <ul>
+ *
+ * <li>For drawing to a
+ * <a href="http://developer.android.com/reference/android/view/SurfaceView.html">SurfaceView</a>:
+ * Once the SurfaceView's Surface is created, set the size
+ * of the Surface with
+ * <a href="http://developer.android.com/reference/android/view/SurfaceHolder.html#setFixedSize(int, int)">
+ * android.view.SurfaceHolder\#setFixedSize</a> to be one of the PRIVATE output sizes
+ * returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}
+ * and then obtain the Surface by calling <a href=
+ * "http://developer.android.com/reference/android/view/SurfaceHolder.html#getSurface()">
+ * android.view.SurfaceHolder\#getSurface</a>. If the size is not set by the application, it will
+ * be rounded to the nearest supported size less than 1080p, by the camera device.</li>
+ *
+ * <li>For accessing through an OpenGL texture via a <a href=
+ * "http://developer.android.com/reference/android/graphics/SurfaceTexture.html">SurfaceTexture</a>:
+ * Set the size of the SurfaceTexture with <a href=
+ * "http://developer.android.com/reference/android/graphics/SurfaceTexture.html#setDefaultBufferSize(int, int)">
+ * setDefaultBufferSize</a> to be one of the PRIVATE output sizes
+ * returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}
+ * before creating a Surface from the SurfaceTexture with <a href=
+ * "http://developer.android.com/reference/android/view/Surface.html#Surface(android.graphics.SurfaceTexture)">
+ * Surface\#Surface(SurfaceTextrue)</a>. If the size is not set by the application, it will be set to be the
+ * smallest supported size less than 1080p, by the camera device.</li>
+ *
+ * <li>For recording with <a href=
+ * "http://developer.android.com/reference/android/media/MediaCodec.html">
+ * MediaCodec</a>: Call
+ * <a href=
+ * "http://developer.android.com/reference/android/media/MediaCodec.html#createInputSurface()">
+ * android.media.MediaCodec\#createInputSurface</a> after configuring
+ * the media codec to use one of the PRIVATE output sizes
+ * returned by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}.
+ * </li>
+ *
+ * <li>For recording with <a href=
+ * "http://developer.android.com/reference/android/media/MediaRecorder.html">
+ * MediaRecorder</a>: Call
+ * <a href="http://developer.android.com/reference/android/media/MediaRecorder.html#getSurface()">
+ * android.media.MediaRecorder\#getSurface</a> after configuring the media recorder to use
+ * one of the PRIVATE output sizes returned by
+ * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}, or configuring it to use one of the supported
+ * <a href="http://developer.android.com/reference/android/media/CamcorderProfile.html">
+ * CamcorderProfiles</a>.</li>
+ *
+ * <li>For efficient YUV processing with <a href=
+ * "http://developer.android.com/reference/android/renderscript/package-summary.html">
+ * RenderScript</a>:
+ * Create a RenderScript
+ * <a href="http://developer.android.com/reference/android/renderscript/Allocation.html">
+ * Allocation</a> with a supported YUV
+ * type, the IO_INPUT flag, and one of the YUV output sizes returned by
+ * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS},
+ * Then obtain the Surface with
+ * <a href="http://developer.android.com/reference/android/renderscript/Allocation.html#getSurface()">
+ * Allocation#getSurface}</a>.</li>
+ *
+ * <li>For access to RAW, uncompressed YUV, or compressed JPEG data in the application: Create an
+ * {@link AImageReader} object using the {@link AImageReader_new} method with one of the supported
+ * output formats given by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}. Then obtain a
+ * ANativeWindow from it with {@link AImageReader_getWindow}.
+ * If the AImageReader size is not set to a supported size, it will be rounded to a supported
+ * size less than 1080p by the camera device.
+ * </li>
+ *
+ * </ul>
+ *
+ * <p>The camera device will query each ANativeWindow's size and formats upon this
+ * call, so they must be set to a valid setting at this time.</p>
+ *
+ * <p>It can take several hundred milliseconds for the session's configuration to complete,
+ * since camera hardware may need to be powered on or reconfigured.</p>
+ *
+ * <p>If a prior ACameraCaptureSession already exists when this method is called, the previous
+ * session will no longer be able to accept new capture requests and will be closed. Any
+ * in-progress capture requests made on the prior session will be completed before it's closed.
+ * To minimize the transition time,
+ * the ACameraCaptureSession_abortCaptures method can be used to discard the remaining
+ * requests for the prior capture session before a new one is created. Note that once the new
+ * session is created, the old one can no longer have its captures aborted.</p>
+ *
+ * <p>Using larger resolution outputs, or more outputs, can result in slower
+ * output rate from the device.</p>
+ *
+ * <p>Configuring a session with an empty list will close the current session, if
+ * any. This can be used to release the current session's target surfaces for another use.</p>
+ *
+ * <p>While any of the sizes from {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} can be used when
+ * a single output stream is configured, a given camera device may not be able to support all
+ * combination of sizes, formats, and targets when multiple outputs are configured at once. The
+ * tables below list the maximum guaranteed resolutions for combinations of streams and targets,
+ * given the capabilities of the camera device.</p>
+ *
+ * <p>If an application tries to create a session using a set of targets that exceed the limits
+ * described in the below tables, one of three possibilities may occur. First, the session may
+ * be successfully created and work normally. Second, the session may be successfully created,
+ * but the camera device won't meet the frame rate guarantees as described in
+ * {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}. Or third, if the output set
+ * cannot be used at all, session creation will fail entirely, with
+ * {@link ACAMERA_ERROR_STREAM_CONFIGURE_FAIL} being returned.</p>
+ *
+ * <p>For the type column `PRIV` refers to output format {@link AIMAGE_FORMAT_PRIVATE},
+ * `YUV` refers to output format {@link AIMAGE_FORMAT_YUV_420_888},
+ * `JPEG` refers to output format {@link AIMAGE_FORMAT_JPEG},
+ * and `RAW` refers to output format {@link AIMAGE_FORMAT_RAW16}
+ *
+ *
+ * <p>For the maximum size column, `PREVIEW` refers to the best size match to the
+ * device's screen resolution, or to 1080p `(1920x1080)`, whichever is
+ * smaller. `RECORD` refers to the camera device's maximum supported recording resolution,
+ * as determined by <a href="http://developer.android.com/reference/android/media/CamcorderProfile.html">
+ * android.media.CamcorderProfiles</a>. And `MAXIMUM` refers to the
+ * camera device's maximum output resolution for that format or target from
+ * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}.</p>
+ *
+ * <p>To use these tables, determine the number and the formats/targets of outputs needed, and
+ * find the row(s) of the table with those targets. The sizes indicate the maximum set of sizes
+ * that can be used; it is guaranteed that for those targets, the listed sizes and anything
+ * smaller from the list given by {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} can be
+ * successfully used to create a session. For example, if a row indicates that a 8 megapixel
+ * (MP) YUV_420_888 output can be used together with a 2 MP `PRIV` output, then a session
+ * can be created with targets `[8 MP YUV, 2 MP PRIV]` or targets `[2 MP YUV, 2 MP PRIV]`;
+ * but a session with targets `[8 MP YUV, 4 MP PRIV]`, targets `[4 MP YUV, 4 MP PRIV]`,
+ * or targets `[8 MP PRIV, 2 MP YUV]` would not be guaranteed to work, unless
+ * some other row of the table lists such a combination.</p>
+ *
+ * <p>Legacy devices ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
+ * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY LEGACY}) support at
+ * least the following stream combinations:
+ *
+ * <table>
+ * <tr><th colspan="7">LEGACY-level guaranteed configurations</th></tr>
+ * <tr> <th colspan="2" id="rb">Target 1</th> <th colspan="2" id="rb">Target 2</th> <th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr> <th>Type</th><th id="rb">Max size</th> <th>Type</th><th id="rb">Max size</th> <th>Type</th><th id="rb">Max size</th></tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>Simple preview, GPU video processing, or no-preview video recording.</td> </tr>
+ * <tr> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>No-viewfinder still image capture.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>In-application video/image processing.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Standard still imaging.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>In-app processing plus still capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td colspan="2" id="rb"></td> <td>Standard recording.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td colspan="2" id="rb"></td> <td>Preview plus in-app processing.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Still capture plus in-app processing.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>Limited-level ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
+ * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED}) devices
+ * support at least the following stream combinations in addition to those for
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY LEGACY} devices:
+ *
+ * <table>
+ * <tr><th colspan="7">LIMITED-level additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th></tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>High-resolution video recording with preview.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>High-resolution in-app video processing with preview.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td colspan="2" id="rb"></td> <td>Two-input in-app video processing.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`RECORD `</td> <td>`JPEG`</td><td id="rb">`RECORD `</td> <td>High-resolution recording with video snapshot.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`RECORD `</td> <td>`JPEG`</td><td id="rb">`RECORD `</td> <td>High-resolution in-app processing with video snapshot.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Two-input in-app processing with still capture.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>FULL-level ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
+ * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL}) devices
+ * support at least the following stream combinations in addition to those for
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices:
+ *
+ * <table>
+ * <tr><th colspan="7">FULL-level additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution GPU processing with preview.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution in-app processing with preview.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Maximum-resolution two-input in-app processsing.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>Video recording with maximum-size video snapshot</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`640x480`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Standard video recording plus maximum-resolution in-app processing.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`640x480`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Preview plus two-input maximum-resolution in-app processing.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>RAW-capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
+ * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW RAW}) devices additionally support
+ * at least the following stream combinations on both
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL} and
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices:
+ *
+ * <table>
+ * <tr><th colspan="7">RAW-capability additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th> <th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
+ * <tr> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td colspan="2" id="rb"></td> <td>No-preview DNG capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>Standard DNG capture.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td colspan="2" id="rb"></td> <td>In-app processing plus DNG capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Video recording with DNG capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Preview with in-app processing and DNG capture.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Two-input in-app processing plus DNG capture.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>Still capture with simultaneous JPEG and DNG.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW `</td><td id="rb">`MAXIMUM`</td> <td>In-app processing with simultaneous JPEG and DNG.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>BURST-capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
+ * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE BURST_CAPTURE}) devices
+ * support at least the below stream combinations in addition to those for
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED} devices. Note that all
+ * FULL-level devices support the BURST capability, and the below list is a strict subset of the
+ * list for FULL-level devices, so this table is only relevant for LIMITED-level devices that
+ * support the BURST_CAPTURE capability.
+ *
+ * <table>
+ * <tr><th colspan="5">BURST-capability additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution GPU processing with preview.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution in-app processing with preview.</td> </tr>
+ * <tr> <td>`YUV `</td><td id="rb">`PREVIEW`</td> <td>`YUV `</td><td id="rb">`MAXIMUM`</td> <td>Maximum-resolution two-input in-app processsing.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>LEVEL-3 ({@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL}
+ * `== `{@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_3 LEVEL_3})
+ * support at least the following stream combinations in addition to the combinations for
+ * {@link ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL} and for
+ * RAW capability ({@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES} includes
+ * {@link ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW RAW}):
+ *
+ * <table>
+ * <tr><th colspan="11">LEVEL-3 additional guaranteed configurations</th></tr>
+ * <tr><th colspan="2" id="rb">Target 1</th><th colspan="2" id="rb">Target 2</th><th colspan="2" id="rb">Target 3</th><th colspan="2" id="rb">Target 4</th><th rowspan="2">Sample use case(s)</th> </tr>
+ * <tr><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th><th>Type</th><th id="rb">Max size</th> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`640x480`</td> <td>`YUV`</td><td id="rb">`MAXIMUM`</td> <td>`RAW`</td><td id="rb">`MAXIMUM`</td> <td>In-app viewfinder analysis with dynamic selection of output format.</td> </tr>
+ * <tr> <td>`PRIV`</td><td id="rb">`PREVIEW`</td> <td>`PRIV`</td><td id="rb">`640x480`</td> <td>`JPEG`</td><td id="rb">`MAXIMUM`</td> <td>`RAW`</td><td id="rb">`MAXIMUM`</td> <td>In-app viewfinder analysis with dynamic selection of output format.</td> </tr>
+ * </table><br>
+ * </p>
+ *
+ * <p>Since the capabilities of camera devices vary greatly, a given camera device may support
+ * target combinations with sizes outside of these guarantees, but this can only be tested for
+ * by attempting to create a session with such targets.</p>
+ *
+ * @param device the camera device of interest.
+ * @param outputs the {@link ACaptureSessionOutputContainer} describes all output streams.
+ * @param callbacks the {@link ACameraCaptureSession_stateCallbacks capture session state callbacks}.
+ * @param session the created {@link ACameraCaptureSession} will be filled here if the method call
+ * succeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds. The created capture session will be
+ * filled in session argument.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if any of device, outputs, callbacks or
+ * session is NULL.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if the camera device is closed.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DEVICE} if the camera device encounters fatal error.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_SERVICE} if the camera service encounters fatal error.</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraDevice_createCaptureSession(
+ ACameraDevice* device,
+ const ACaptureSessionOutputContainer* outputs,
+ const ACameraCaptureSession_stateCallbacks* callbacks,
+ /*out*/ACameraCaptureSession** session);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_DEVICE_H */
+
+/** @} */
+
diff --git a/camera/include/camera/ndk/NdkCameraError.h b/camera/include/camera/ndk/NdkCameraError.h
new file mode 100644
index 0000000..6b58155
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraError.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraError.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_ERROR_H
+#define _NDK_CAMERA_ERROR_H
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+typedef enum {
+ ACAMERA_OK = 0,
+
+ ACAMERA_ERROR_BASE = -10000,
+
+ /**
+ * Camera operation has failed due to an unspecified cause.
+ */
+ ACAMERA_ERROR_UNKNOWN = ACAMERA_ERROR_BASE,
+
+ /**
+ * Camera operation has failed due to an invalid parameter being passed to the method.
+ */
+ ACAMERA_ERROR_INVALID_PARAMETER = ACAMERA_ERROR_BASE - 1,
+
+ /**
+ * Camera operation has failed because the camera device has been closed, possibly because a
+ * higher-priority client has taken ownership of the camera device.
+ */
+ ACAMERA_ERROR_CAMERA_DISCONNECTED = ACAMERA_ERROR_BASE - 2,
+
+ /**
+ * Camera operation has failed due to insufficient memory.
+ */
+ ACAMERA_ERROR_NOT_ENOUGH_MEMORY = ACAMERA_ERROR_BASE - 3,
+
+ /**
+ * Camera operation has failed due to the requested metadata tag cannot be found in input
+ * {@link ACameraMetadata} or {@link ACaptureRequest}.
+ */
+ ACAMERA_ERROR_METADATA_NOT_FOUND = ACAMERA_ERROR_BASE - 4,
+
+ /**
+ * Camera operation has failed and the camera device has encountered a fatal error and needs to
+ * be re-opened before it can be used again.
+ */
+ ACAMERA_ERROR_CAMERA_DEVICE = ACAMERA_ERROR_BASE - 5,
+
+ /**
+ * Camera operation has failed and the camera service has encountered a fatal error.
+ *
+ * <p>The Android device may need to be shut down and restarted to restore
+ * camera function, or there may be a persistent hardware problem.</p>
+ *
+ * <p>An attempt at recovery may be possible by closing the
+ * ACameraDevice and the ACameraManager, and trying to acquire all resources
+ * again from scratch.</p>
+ */
+ ACAMERA_ERROR_CAMERA_SERVICE = ACAMERA_ERROR_BASE - 6,
+
+ /**
+ * The {@link ACameraCaptureSession} has been closed and cannnot perform any operation other
+ * than {@link ACameraCaptureSession_close}.
+ */
+ ACAMERA_ERROR_SESSION_CLOSED = ACAMERA_ERROR_BASE - 7,
+
+ /**
+ * Camera operation has failed due to an invalid internal operation. Usually this is due to a
+ * low-level problem that may resolve itself on retry
+ */
+ ACAMERA_ERROR_INVALID_OPERATION = ACAMERA_ERROR_BASE - 8,
+
+ /**
+ * Camera device does not support the stream configuration provided by application in
+ * {@link ACameraDevice_createCaptureSession}.
+ */
+ ACAMERA_ERROR_STREAM_CONFIGURE_FAIL = ACAMERA_ERROR_BASE - 9,
+
+ /**
+ * Camera device is being used by another higher priority camera API client.
+ */
+ ACAMERA_ERROR_CAMERA_IN_USE = ACAMERA_ERROR_BASE - 10,
+
+ /**
+ * The system-wide limit for number of open cameras or camera resources has been reached, and
+ * more camera devices cannot be opened until previous instances are closed.
+ */
+ ACAMERA_ERROR_MAX_CAMERA_IN_USE = ACAMERA_ERROR_BASE - 11,
+
+ /**
+ * The camera is disabled due to a device policy, and cannot be opened.
+ */
+ ACAMERA_ERROR_CAMERA_DISABLED = ACAMERA_ERROR_BASE - 12,
+
+ /**
+ * The application does not have permission to open camera.
+ */
+ ACAMERA_ERROR_PERMISSION_DENIED = ACAMERA_ERROR_BASE - 13,
+} camera_status_t;
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_ERROR_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCameraManager.h b/camera/include/camera/ndk/NdkCameraManager.h
new file mode 100644
index 0000000..5b5c98b
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraManager.h
@@ -0,0 +1,282 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraManager.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_MANAGER_H
+#define _NDK_CAMERA_MANAGER_H
+
+#include <sys/cdefs.h>
+
+#include "NdkCameraError.h"
+#include "NdkCameraMetadata.h"
+#include "NdkCameraDevice.h"
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+/**
+ * ACameraManager is opaque type that provides access to camera service.
+ *
+ * A pointer can be obtained using {@link ACameraManager_create} method.
+ */
+typedef struct ACameraManager ACameraManager;
+
+/**
+ * Create ACameraManager instance.
+ *
+ * <p>The ACameraManager is responsible for
+ * detecting, characterizing, and connecting to {@link ACameraDevice}s.</p>
+ *
+ * <p>The caller must call {@link ACameraManager_delete} to free the resources once it is done
+ * using the ACameraManager instance.</p>
+ *
+ * @return a {@link ACameraManager} instance.
+ *
+ */
+ACameraManager* ACameraManager_create();
+
+/**
+ * <p>Delete the {@link ACameraManager} instance and free its resources. </p>
+ *
+ * @param manager the {@link ACameraManager} instance to be deleted.
+ */
+void ACameraManager_delete(ACameraManager* manager);
+
+/// Struct to hold list of camera devices
+typedef struct ACameraIdList {
+ int numCameras; ///< Number of connected camera devices
+ const char** cameraIds; ///< list of identifier of connected camera devices
+} ACameraIdList;
+
+/**
+ * Create a list of currently connected camera devices, including
+ * cameras that may be in use by other camera API clients.
+ *
+ * <p>Non-removable cameras use integers starting at 0 for their
+ * identifiers, while removable cameras have a unique identifier for each
+ * individual device, even if they are the same model.</p>
+ *
+ * <p>ACameraManager_getCameraIdList will allocate and return an {@link ACameraIdList}.
+ * The caller must call {@link ACameraManager_deleteCameraIdList} to free the memory</p>
+ *
+ * @param manager the {@link ACameraManager} of interest
+ * @param cameraIdList the output {@link ACameraIdList} will be filled in here if the method call
+ * succeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager or cameraIdList is NULL.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
+ * <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li></ul>
+ */
+camera_status_t ACameraManager_getCameraIdList(ACameraManager* manager,
+ /*out*/ACameraIdList** cameraIdList);
+
+/**
+ * Delete a list of camera devices allocated via {@link ACameraManager_getCameraIdList}.
+ *
+ * @param cameraIdList the {@link ACameraIdList} to be deleted.
+ */
+void ACameraManager_deleteCameraIdList(ACameraIdList* cameraIdList);
+
+/**
+ * Definition of camera availability callbacks.
+ *
+ * @param context The optional application context provided by user in
+ * {@link ACameraManager_AvailabilityCallbacks}.
+ * @param cameraId The ID of the camera device whose availability is changing. The memory of this
+ * argument is owned by camera framework and will become invalid immediately after
+ * this callback returns.
+ */
+typedef void (*ACameraManager_AvailabilityCallback)(void* context, const char* cameraId);
+
+/**
+ * A listener for camera devices becoming available or unavailable to open.
+ *
+ * <p>Cameras become available when they are no longer in use, or when a new
+ * removable camera is connected. They become unavailable when some
+ * application or service starts using a camera, or when a removable camera
+ * is disconnected.</p>
+ *
+ * @see ACameraManager_registerAvailabilityCallback
+ */
+typedef struct ACameraManager_AvailabilityListener {
+ /// Optional application context.
+ void* context;
+ /// Called when a camera becomes available
+ ACameraManager_AvailabilityCallback onCameraAvailable;
+ /// Called when a camera becomes unavailable
+ ACameraManager_AvailabilityCallback onCameraUnavailable;
+} ACameraManager_AvailabilityCallbacks;
+
+/**
+ * Register camera availability callbacks.
+ *
+ * <p>onCameraUnavailable will be called whenever a camera device is opened by any camera API client.
+ * Other camera API clients may still be able to open such a camera device, evicting the existing
+ * client if they have higher priority than the existing client of a camera device.
+ * See {@link ACameraManager_openCamera} for more details.</p>
+ *
+ * <p>The callbacks will be called on a dedicated thread shared among all ACameraManager
+ * instances.</p>
+ *
+ * <p>Since this callback will be registered with the camera service, remember to unregister it
+ * once it is no longer needed; otherwise the callback will continue to receive events
+ * indefinitely and it may prevent other resources from being released. Specifically, the
+ * callbacks will be invoked independently of the general activity lifecycle and independently
+ * of the state of individual ACameraManager instances.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param callback the {@link ACameraManager_AvailabilityCallbacks} to be registered.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager or callback is NULL, or
+ * {ACameraManager_AvailabilityCallbacks#onCameraAvailable} or
+ * {ACameraManager_AvailabilityCallbacks#onCameraUnavailable} is NULL.</li></ul>
+ */
+camera_status_t ACameraManager_registerAvailabilityCallback(
+ ACameraManager* manager, const ACameraManager_AvailabilityCallbacks* callback);
+
+/**
+ * Unregister camera availability callbacks.
+ *
+ * <p>Removing a callback that isn't registered has no effect.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param callback the {@link ACameraManager_AvailabilityCallbacks} to be unregistered.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if callback,
+ * {ACameraManager_AvailabilityCallbacks#onCameraAvailable} or
+ * {ACameraManager_AvailabilityCallbacks#onCameraUnavailable} is NULL.</li></ul>
+ */
+camera_status_t ACameraManager_unregisterAvailabilityCallback(
+ ACameraManager* manager, const ACameraManager_AvailabilityCallbacks* callback);
+
+/**
+ * Query the capabilities of a camera device. These capabilities are
+ * immutable for a given camera.
+ *
+ * <p>See {@link ACameraMetadata} document and {@link NdkCameraMetadataTags.h} for more details.</p>
+ *
+ * <p>The caller must call {@link ACameraMetadata_free} to free the memory of the output
+ * characteristics.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param cameraId the ID string of the camera device of interest.
+ * @param characteristics the output {@link ACameraMetadata} will be filled here if the method call
+ * succeeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager, cameraId, or characteristics
+ * is NULL, or cameraId does not match any camera devices connected.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
+ * <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraManager_getCameraCharacteristics(
+ ACameraManager* manager, const char* cameraId,
+ /*out*/ACameraMetadata** characteristics);
+
+/**
+ * Open a connection to a camera with the given ID. The opened camera device will be
+ * returned in the `device` parameter.
+ *
+ * <p>Use {@link ACameraManager_getCameraIdList} to get the list of available camera
+ * devices. Note that even if an id is listed, open may fail if the device
+ * is disconnected between the calls to {@link ACameraManager_getCameraIdList} and
+ * {@link ACameraManager_openCamera}, or if a higher-priority camera API client begins using the
+ * camera device.</p>
+ *
+ * <p>Devices for which the
+ * {@link ACameraManager_AvailabilityCallbacks#onCameraUnavailable} callback has been called due to
+ * the device being in use by a lower-priority, background camera API client can still potentially
+ * be opened by calling this method when the calling camera API client has a higher priority
+ * than the current camera API client using this device. In general, if the top, foreground
+ * activity is running within your application process, your process will be given the highest
+ * priority when accessing the camera, and this method will succeed even if the camera device is
+ * in use by another camera API client. Any lower-priority application that loses control of the
+ * camera in this way will receive an
+ * {@link ACameraDevice_stateCallbacks#onDisconnected} callback.</p>
+ *
+ * <p>Once the camera is successfully opened,the ACameraDevice can then be set up
+ * for operation by calling {@link ACameraDevice_createCaptureSession} and
+ * {@link ACameraDevice_createCaptureRequest}.</p>
+ *
+ * <p>If the camera becomes disconnected after this function call returns,
+ * {@link ACameraDevice_stateCallbacks#onDisconnected} with a
+ * ACameraDevice in the disconnected state will be called.</p>
+ *
+ * <p>If the camera runs into error after this function call returns,
+ * {@link ACameraDevice_stateCallbacks#onError} with a
+ * ACameraDevice in the error state will be called.</p>
+ *
+ * @param manager the {@link ACameraManager} of interest.
+ * @param cameraId the ID string of the camera device to be opened.
+ * @param callback the {@link ACameraDevice_StateCallbacks} associated with the opened camera device.
+ * @param device the opened {@link ACameraDevice} will be filled here if the method call succeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if manager, cameraId, callback, or device
+ * is NULL, or cameraId does not match any camera devices connected.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISCONNECTED} if connection to camera service fails.</li>
+ * <li>{@link ACAMERA_ERROR_NOT_ENOUGH_MEMORY} if allocating memory fails.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_IN_USE} if camera device is being used by a higher
+ * priority camera API client.</li>
+ * <li>{@link ACAMERA_ERROR_MAX_CAMERA_IN_USE} if the system-wide limit for number of open
+ * cameras or camera resources has been reached, and more camera devices cannot be
+ * opened until previous instances are closed.</li>
+ * <li>{@link ACAMERA_ERROR_CAMERA_DISABLED} if the camera is disabled due to a device
+ * policy, and cannot be opened.</li>
+ * <li>{@link ACAMERA_ERROR_PERMISSION_DENIED} if the application does not have permission
+ * to open camera.</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraManager_openCamera(
+ ACameraManager* manager, const char* cameraId,
+ ACameraDevice_StateCallbacks* callback,
+ /*out*/ACameraDevice** device);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_MANAGER_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCameraMetadata.h b/camera/include/camera/ndk/NdkCameraMetadata.h
new file mode 100644
index 0000000..f2aec98
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraMetadata.h
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraMetadata.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_METADATA_H
+#define _NDK_CAMERA_METADATA_H
+
+#include <sys/cdefs.h>
+
+#include "NdkCameraError.h"
+#include "NdkCameraMetadataTags.h"
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+/**
+ * ACameraMetadata is opaque type that provides access to read-only camera metadata like camera
+ * characteristics (via {@link ACameraManager_getCameraCharacteristics}) or capture results (via
+ * {@link ACameraCaptureSession_captureCallback_result}).
+ */
+typedef struct ACameraMetadata ACameraMetadata;
+
+/**
+ * Possible data types of a metadata entry.
+ *
+ * Keep in sync with system/media/include/system/camera_metadata.h
+ */
+enum {
+ /// Unsigned 8-bit integer (uint8_t)
+ ACAMERA_TYPE_BYTE = 0,
+ /// Signed 32-bit integer (int32_t)
+ ACAMERA_TYPE_INT32 = 1,
+ /// 32-bit float (float)
+ ACAMERA_TYPE_FLOAT = 2,
+ /// Signed 64-bit integer (int64_t)
+ ACAMERA_TYPE_INT64 = 3,
+ /// 64-bit float (double)
+ ACAMERA_TYPE_DOUBLE = 4,
+ /// A 64-bit fraction (ACameraMetadata_rational)
+ ACAMERA_TYPE_RATIONAL = 5,
+ /// Number of type fields
+ ACAMERA_NUM_TYPES
+};
+
+/**
+ * Definition of rational data type in {@link ACameraMetadata}.
+ */
+typedef struct ACameraMetadata_rational {
+ int32_t numerator;
+ int32_t denominator;
+} ACameraMetadata_rational;
+
+/**
+ * A single camera metadata entry.
+ *
+ * <p>Each entry is an array of values, though many metadata fields may only have 1 entry in the
+ * array.</p>
+ */
+typedef struct ACameraMetadata_entry {
+ /**
+ * The tag identifying the entry.
+ *
+ * <p> It is one of the values defined in {@link NdkCameraMetadataTags.h}, and defines how the
+ * entry should be interpreted and which parts of the API provide it.
+ * See {@link NdkCameraMetadataTags.h} for more details. </p>
+ */
+ uint32_t tag;
+
+ /**
+ * The data type of this metadata entry.
+ *
+ * <p>Must be one of ACAMERA_TYPE_* enum values defined above. A particular tag always has the
+ * same type.</p>
+ */
+ uint8_t type;
+
+ /**
+ * Count of elements (NOT count of bytes) in this metadata entry.
+ */
+ uint32_t count;
+
+ /**
+ * Pointer to the data held in this metadata entry.
+ *
+ * <p>The type field above defines which union member pointer is valid. The count field above
+ * defines the length of the data in number of elements.</p>
+ */
+ union {
+ uint8_t *u8;
+ int32_t *i32;
+ float *f;
+ int64_t *i64;
+ double *d;
+ ACameraMetadata_rational* r;
+ } data;
+} ACameraMetadata_entry;
+
+/**
+ * A single read-only camera metadata entry.
+ *
+ * <p>Each entry is an array of values, though many metadata fields may only have 1 entry in the
+ * array.</p>
+ */
+typedef struct ACameraMetadata_const_entry {
+ /**
+ * The tag identifying the entry.
+ *
+ * <p> It is one of the values defined in {@link NdkCameraMetadataTags.h}, and defines how the
+ * entry should be interpreted and which parts of the API provide it.
+ * See {@link NdkCameraMetadataTags.h} for more details. </p>
+ */
+ uint32_t tag;
+
+ /**
+ * The data type of this metadata entry.
+ *
+ * <p>Must be one of ACAMERA_TYPE_* enum values defined above. A particular tag always has the
+ * same type.</p>
+ */
+ uint8_t type;
+
+ /**
+ * Count of elements (NOT count of bytes) in this metadata entry.
+ */
+ uint32_t count;
+
+ /**
+ * Pointer to the data held in this metadata entry.
+ *
+ * <p>The type field above defines which union member pointer is valid. The count field above
+ * defines the length of the data in number of elements.</p>
+ */
+ union {
+ const uint8_t *u8;
+ const int32_t *i32;
+ const float *f;
+ const int64_t *i64;
+ const double *d;
+ const ACameraMetadata_rational* r;
+ } data;
+} ACameraMetadata_const_entry;
+
+/**
+ * Get a metadata entry from an input {@link ACameraMetadata}.
+ *
+ * <p>The memory of the data field in the returned entry is managed by camera framework. Do not
+ * attempt to free it.</p>
+ *
+ * @param metadata the {@link ACameraMetadata} of interest.
+ * @param tag the tag value of the camera metadata entry to be get.
+ * @param entry the output {@link ACameraMetadata_const_entry} will be filled here if the method
+ * call succeeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata or entry is NULL.</li>
+ * <li>{@link ACAMERA_ERROR_METADATA_NOT_FOUND} if input metadata does not contain an entry
+ * of input tag value.</li></ul>
+ */
+camera_status_t ACameraMetadata_getConstEntry(
+ const ACameraMetadata* metadata, uint32_t tag, /*out*/ACameraMetadata_const_entry* entry);
+
+/**
+ * List all the entry tags in input {@link ACameraMetadata}.
+ *
+ * @param metadata the {@link ACameraMetadata} of interest.
+ * @param numEntries number of metadata entries in input {@link ACameraMetadata}
+ * @param tags the tag values of the metadata entries. Length of tags is returned in numEntries
+ * argument. The memory is managed by ACameraMetadata itself and must NOT be free/delete
+ * by application. Do NOT access tags after calling ACameraMetadata_free.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata, numEntries or tags is NULL.</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACameraMetadata_getAllTags(
+ const ACameraMetadata* metadata, /*out*/int32_t* numEntries, /*out*/const uint32_t** tags);
+
+/**
+ * Create a copy of input {@link ACameraMetadata}.
+ *
+ * <p>The returned ACameraMetadata must be freed by the application by {@link ACameraMetadata_free}
+ * after application is done using it.</p>
+ *
+ * @param src the input {@link ACameraMetadata} to be copied.
+ *
+ * @return a valid ACameraMetadata pointer or NULL if the input metadata cannot be copied.
+ */
+ACameraMetadata* ACameraMetadata_copy(const ACameraMetadata* src);
+
+/**
+ * Free a {@link ACameraMetadata} structure.
+ *
+ * @param metadata the {@link ACameraMetadata} to be freed.
+ */
+void ACameraMetadata_free(ACameraMetadata* metadata);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_METADATA_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCameraMetadataTags.h b/camera/include/camera/ndk/NdkCameraMetadataTags.h
new file mode 100644
index 0000000..ced6034
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraMetadataTags.h
@@ -0,0 +1,6970 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraMetadataTags.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_METADATA_TAGS_H
+#define _NDK_CAMERA_METADATA_TAGS_H
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+typedef enum acamera_metadata_section {
+ ACAMERA_COLOR_CORRECTION,
+ ACAMERA_CONTROL,
+ ACAMERA_DEMOSAIC,
+ ACAMERA_EDGE,
+ ACAMERA_FLASH,
+ ACAMERA_FLASH_INFO,
+ ACAMERA_HOT_PIXEL,
+ ACAMERA_JPEG,
+ ACAMERA_LENS,
+ ACAMERA_LENS_INFO,
+ ACAMERA_NOISE_REDUCTION,
+ ACAMERA_QUIRKS,
+ ACAMERA_REQUEST,
+ ACAMERA_SCALER,
+ ACAMERA_SENSOR,
+ ACAMERA_SENSOR_INFO,
+ ACAMERA_SHADING,
+ ACAMERA_STATISTICS,
+ ACAMERA_STATISTICS_INFO,
+ ACAMERA_TONEMAP,
+ ACAMERA_LED,
+ ACAMERA_INFO,
+ ACAMERA_BLACK_LEVEL,
+ ACAMERA_SYNC,
+ ACAMERA_REPROCESS,
+ ACAMERA_DEPTH,
+ ACAMERA_SECTION_COUNT,
+
+ ACAMERA_VENDOR = 0x8000
+} acamera_metadata_section_t;
+
+/**
+ * Hierarchy positions in enum space.
+ */
+typedef enum acamera_metadata_section_start {
+ ACAMERA_COLOR_CORRECTION_START = ACAMERA_COLOR_CORRECTION << 16,
+ ACAMERA_CONTROL_START = ACAMERA_CONTROL << 16,
+ ACAMERA_DEMOSAIC_START = ACAMERA_DEMOSAIC << 16,
+ ACAMERA_EDGE_START = ACAMERA_EDGE << 16,
+ ACAMERA_FLASH_START = ACAMERA_FLASH << 16,
+ ACAMERA_FLASH_INFO_START = ACAMERA_FLASH_INFO << 16,
+ ACAMERA_HOT_PIXEL_START = ACAMERA_HOT_PIXEL << 16,
+ ACAMERA_JPEG_START = ACAMERA_JPEG << 16,
+ ACAMERA_LENS_START = ACAMERA_LENS << 16,
+ ACAMERA_LENS_INFO_START = ACAMERA_LENS_INFO << 16,
+ ACAMERA_NOISE_REDUCTION_START = ACAMERA_NOISE_REDUCTION << 16,
+ ACAMERA_QUIRKS_START = ACAMERA_QUIRKS << 16,
+ ACAMERA_REQUEST_START = ACAMERA_REQUEST << 16,
+ ACAMERA_SCALER_START = ACAMERA_SCALER << 16,
+ ACAMERA_SENSOR_START = ACAMERA_SENSOR << 16,
+ ACAMERA_SENSOR_INFO_START = ACAMERA_SENSOR_INFO << 16,
+ ACAMERA_SHADING_START = ACAMERA_SHADING << 16,
+ ACAMERA_STATISTICS_START = ACAMERA_STATISTICS << 16,
+ ACAMERA_STATISTICS_INFO_START = ACAMERA_STATISTICS_INFO << 16,
+ ACAMERA_TONEMAP_START = ACAMERA_TONEMAP << 16,
+ ACAMERA_LED_START = ACAMERA_LED << 16,
+ ACAMERA_INFO_START = ACAMERA_INFO << 16,
+ ACAMERA_BLACK_LEVEL_START = ACAMERA_BLACK_LEVEL << 16,
+ ACAMERA_SYNC_START = ACAMERA_SYNC << 16,
+ ACAMERA_REPROCESS_START = ACAMERA_REPROCESS << 16,
+ ACAMERA_DEPTH_START = ACAMERA_DEPTH << 16,
+ ACAMERA_VENDOR_START = ACAMERA_VENDOR << 16
+} acamera_metadata_section_start_t;
+
+/**
+ * Main enum for camera metadata tags.
+ */
+typedef enum acamera_metadata_tag {
+ /**
+ * <p>The mode control selects how the image data is converted from the
+ * sensor's native color into linear sRGB color.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When auto-white balance (AWB) is enabled with ACAMERA_CONTROL_AWB_MODE, this
+ * control is overridden by the AWB routine. When AWB is disabled, the
+ * application controls how the color mapping is performed.</p>
+ * <p>We define the expected processing pipeline below. For consistency
+ * across devices, this is always the case with TRANSFORM_MATRIX.</p>
+ * <p>When either FULL or HIGH_QUALITY is used, the camera device may
+ * do additional processing but ACAMERA_COLOR_CORRECTION_GAINS and
+ * ACAMERA_COLOR_CORRECTION_TRANSFORM will still be provided by the
+ * camera device (in the results) and be roughly correct.</p>
+ * <p>Switching to TRANSFORM_MATRIX and using the data provided from
+ * FAST or HIGH_QUALITY will yield a picture with the same white point
+ * as what was produced by the camera device in the earlier frame.</p>
+ * <p>The expected processing pipeline is as follows:</p>
+ * <p><img alt="White balance processing pipeline" src="../images/camera2/metadata/android.colorCorrection.mode/processing_pipeline.png" /></p>
+ * <p>The white balance is encoded by two values, a 4-channel white-balance
+ * gain vector (applied in the Bayer domain), and a 3x3 color transform
+ * matrix (applied after demosaic).</p>
+ * <p>The 4-channel white-balance gains are defined as:</p>
+ * <pre><code>ACAMERA_COLOR_CORRECTION_GAINS = [ R G_even G_odd B ]
+ * </code></pre>
+ * <p>where <code>G_even</code> is the gain for green pixels on even rows of the
+ * output, and <code>G_odd</code> is the gain for green pixels on the odd rows.
+ * These may be identical for a given camera device implementation; if
+ * the camera device does not support a separate gain for even/odd green
+ * channels, it will use the <code>G_even</code> value, and write <code>G_odd</code> equal to
+ * <code>G_even</code> in the output result metadata.</p>
+ * <p>The matrices for color transforms are defined as a 9-entry vector:</p>
+ * <pre><code>ACAMERA_COLOR_CORRECTION_TRANSFORM = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ]
+ * </code></pre>
+ * <p>which define a transform from input sensor colors, <code>P_in = [ r g b ]</code>,
+ * to output linear sRGB, <code>P_out = [ r' g' b' ]</code>,</p>
+ * <p>with colors as follows:</p>
+ * <pre><code>r' = I0r + I1g + I2b
+ * g' = I3r + I4g + I5b
+ * b' = I6r + I7g + I8b
+ * </code></pre>
+ * <p>Both the input and output value ranges must match. Overflow/underflow
+ * values are clipped to fit within the range.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * @see ACAMERA_CONTROL_AWB_MODE
+ */
+ ACAMERA_COLOR_CORRECTION_MODE = // byte (enum)
+ ACAMERA_COLOR_CORRECTION_START,
+ /**
+ * <p>A color transform matrix to use to transform
+ * from sensor RGB color space to output linear sRGB color space.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This matrix is either set by the camera device when the request
+ * ACAMERA_COLOR_CORRECTION_MODE is not TRANSFORM_MATRIX, or
+ * directly by the application in the request when the
+ * ACAMERA_COLOR_CORRECTION_MODE is TRANSFORM_MATRIX.</p>
+ * <p>In the latter case, the camera device may round the matrix to account
+ * for precision issues; the final rounded matrix should be reported back
+ * in this matrix result metadata. The transform should keep the magnitude
+ * of the output color values within <code>[0, 1.0]</code> (assuming input color
+ * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p>
+ * <p>The valid range of each matrix element varies on different devices, but
+ * values within [-1.5, 3.0] are guaranteed not to be clipped.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_MODE
+ */
+ ACAMERA_COLOR_CORRECTION_TRANSFORM = // rational[3*3]
+ ACAMERA_COLOR_CORRECTION_START + 1,
+ /**
+ * <p>Gains applying to Bayer raw color channels for
+ * white-balance.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>These per-channel gains are either set by the camera device
+ * when the request ACAMERA_COLOR_CORRECTION_MODE is not
+ * TRANSFORM_MATRIX, or directly by the application in the
+ * request when the ACAMERA_COLOR_CORRECTION_MODE is
+ * TRANSFORM_MATRIX.</p>
+ * <p>The gains in the result metadata are the gains actually
+ * applied by the camera device to the current frame.</p>
+ * <p>The valid range of gains varies on different devices, but gains
+ * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given
+ * device allows gains below 1.0, this is usually not recommended because
+ * this can create color artifacts.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_MODE
+ */
+ ACAMERA_COLOR_CORRECTION_GAINS = // float[4]
+ ACAMERA_COLOR_CORRECTION_START + 2,
+ /**
+ * <p>Mode of operation for the chromatic aberration correction algorithm.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Chromatic (color) aberration is caused by the fact that different wavelengths of light
+ * can not focus on the same point after exiting from the lens. This metadata defines
+ * the high level control of chromatic aberration correction algorithm, which aims to
+ * minimize the chromatic artifacts that may occur along the object boundaries in an
+ * image.</p>
+ * <p>FAST/HIGH_QUALITY both mean that camera device determined aberration
+ * correction will be applied. HIGH_QUALITY mode indicates that the camera device will
+ * use the highest-quality aberration correction algorithms, even if it slows down
+ * capture rate. FAST means the camera device will not slow down capture rate when
+ * applying aberration correction.</p>
+ * <p>LEGACY devices will always be in FAST mode.</p>
+ */
+ ACAMERA_COLOR_CORRECTION_ABERRATION_MODE = // byte (enum)
+ ACAMERA_COLOR_CORRECTION_START + 3,
+ /**
+ * <p>List of aberration correction modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE that are
+ * supported by this camera device.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This key lists the valid modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE. If no
+ * aberration correction modes are available for a device, this list will solely include
+ * OFF mode. All camera devices will support either OFF or FAST mode.</p>
+ * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always list
+ * OFF mode. This includes all FULL level devices.</p>
+ * <p>LEGACY devices will always only support FAST mode.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+ */
+ ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES = // byte[n]
+ ACAMERA_COLOR_CORRECTION_START + 4,
+ ACAMERA_COLOR_CORRECTION_END,
+
+ /**
+ * <p>The desired setting for the camera device's auto-exposure
+ * algorithm's antibanding compensation.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Some kinds of lighting fixtures, such as some fluorescent
+ * lights, flicker at the rate of the power supply frequency
+ * (60Hz or 50Hz, depending on country). While this is
+ * typically not noticeable to a person, it can be visible to
+ * a camera device. If a camera sets its exposure time to the
+ * wrong value, the flicker may become visible in the
+ * viewfinder as flicker or in a final captured image, as a
+ * set of variable-brightness bands across the image.</p>
+ * <p>Therefore, the auto-exposure routines of camera devices
+ * include antibanding routines that ensure that the chosen
+ * exposure value will not cause such banding. The choice of
+ * exposure time depends on the rate of flicker, which the
+ * camera device can detect automatically, or the expected
+ * rate can be selected by the application using this
+ * control.</p>
+ * <p>A given camera device may not support all of the possible
+ * options for the antibanding mode. The
+ * ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES key contains
+ * the available modes for a given camera device.</p>
+ * <p>AUTO mode is the default if it is available on given
+ * camera device. When AUTO mode is not available, the
+ * default will be either 50HZ or 60HZ, and both 50HZ
+ * and 60HZ will be available.</p>
+ * <p>If manual exposure control is enabled (by setting
+ * ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE to OFF),
+ * then this setting has no effect, and the application must
+ * ensure it selects exposure times that do not cause banding
+ * issues. The ACAMERA_STATISTICS_SCENE_FLICKER key can assist
+ * the application in this.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_STATISTICS_SCENE_FLICKER
+ */
+ ACAMERA_CONTROL_AE_ANTIBANDING_MODE = // byte (enum)
+ ACAMERA_CONTROL_START,
+ /**
+ * <p>Adjustment to auto-exposure (AE) target image
+ * brightness.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>The adjustment is measured as a count of steps, with the
+ * step size defined by ACAMERA_CONTROL_AE_COMPENSATION_STEP and the
+ * allowed range by ACAMERA_CONTROL_AE_COMPENSATION_RANGE.</p>
+ * <p>For example, if the exposure value (EV) step is 0.333, '6'
+ * will mean an exposure compensation of +2 EV; -3 will mean an
+ * exposure compensation of -1 EV. One EV represents a doubling
+ * of image brightness. Note that this control will only be
+ * effective if ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF. This control
+ * will take effect even when ACAMERA_CONTROL_AE_LOCK <code>== true</code>.</p>
+ * <p>In the event of exposure compensation value being changed, camera device
+ * may take several frames to reach the newly requested exposure target.
+ * During that time, ACAMERA_CONTROL_AE_STATE field will be in the SEARCHING
+ * state. Once the new exposure target is reached, ACAMERA_CONTROL_AE_STATE will
+ * change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or
+ * FLASH_REQUIRED (if the scene is too dark for still capture).</p>
+ *
+ * @see ACAMERA_CONTROL_AE_COMPENSATION_RANGE
+ * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
+ * @see ACAMERA_CONTROL_AE_LOCK
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AE_STATE
+ */
+ ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION = // int32
+ ACAMERA_CONTROL_START + 1,
+ /**
+ * <p>Whether auto-exposure (AE) is currently locked to its latest
+ * calculated values.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When set to <code>true</code> (ON), the AE algorithm is locked to its latest parameters,
+ * and will not change exposure settings until the lock is set to <code>false</code> (OFF).</p>
+ * <p>Note that even when AE is locked, the flash may be fired if
+ * the ACAMERA_CONTROL_AE_MODE is ON_AUTO_FLASH /
+ * ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.</p>
+ * <p>When ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION is changed, even if the AE lock
+ * is ON, the camera device will still adjust its exposure value.</p>
+ * <p>If AE precapture is triggered (see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER)
+ * when AE is already locked, the camera device will not change the exposure time
+ * (ACAMERA_SENSOR_EXPOSURE_TIME) and sensitivity (ACAMERA_SENSOR_SENSITIVITY)
+ * parameters. The flash may be fired if the ACAMERA_CONTROL_AE_MODE
+ * is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the
+ * ACAMERA_CONTROL_AE_MODE is ON_ALWAYS_FLASH, the scene may become overexposed.
+ * Similarly, AE precapture trigger CANCEL has no effect when AE is already locked.</p>
+ * <p>When an AE precapture sequence is triggered, AE unlock will not be able to unlock
+ * the AE if AE is locked by the camera device internally during precapture metering
+ * sequence In other words, submitting requests with AE unlock has no effect for an
+ * ongoing precapture metering sequence. Otherwise, the precapture metering sequence
+ * will never succeed in a sequence of preview requests where AE lock is always set
+ * to <code>false</code>.</p>
+ * <p>Since the camera device has a pipeline of in-flight requests, the settings that
+ * get locked do not necessarily correspond to the settings that were present in the
+ * latest capture result received from the camera device, since additional captures
+ * and AE updates may have occurred even before the result was sent out. If an
+ * application is switching between automatic and manual control and wishes to eliminate
+ * any flicker during the switch, the following procedure is recommended:</p>
+ * <ol>
+ * <li>Starting in auto-AE mode:</li>
+ * <li>Lock AE</li>
+ * <li>Wait for the first result to be output that has the AE locked</li>
+ * <li>Copy exposure settings from that result into a request, set the request to manual AE</li>
+ * <li>Submit the capture request, proceed to run manual AE as desired.</li>
+ * </ol>
+ * <p>See ACAMERA_CONTROL_AE_STATE for AE lock related state transition details.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * @see ACAMERA_CONTROL_AE_STATE
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_CONTROL_AE_LOCK = // byte (enum)
+ ACAMERA_CONTROL_START + 2,
+ /**
+ * <p>The desired mode for the camera device's
+ * auto-exposure routine.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This control is only effective if ACAMERA_CONTROL_MODE is
+ * AUTO.</p>
+ * <p>When set to any of the ON modes, the camera device's
+ * auto-exposure routine is enabled, overriding the
+ * application's selected exposure time, sensor sensitivity,
+ * and frame duration (ACAMERA_SENSOR_EXPOSURE_TIME,
+ * ACAMERA_SENSOR_SENSITIVITY, and
+ * ACAMERA_SENSOR_FRAME_DURATION). If one of the FLASH modes
+ * is selected, the camera device's flash unit controls are
+ * also overridden.</p>
+ * <p>The FLASH modes are only available if the camera device
+ * has a flash unit (ACAMERA_FLASH_INFO_AVAILABLE is <code>true</code>).</p>
+ * <p>If flash TORCH mode is desired, this field must be set to
+ * ON or OFF, and ACAMERA_FLASH_MODE set to TORCH.</p>
+ * <p>When set to any of the ON modes, the values chosen by the
+ * camera device auto-exposure routine for the overridden
+ * fields for a given capture will be available in its
+ * CaptureResult.</p>
+ *
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_FLASH_INFO_AVAILABLE
+ * @see ACAMERA_FLASH_MODE
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_CONTROL_AE_MODE = // byte (enum)
+ ACAMERA_CONTROL_START + 3,
+ /**
+ * <p>List of metering areas to use for auto-exposure adjustment.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Not available if android.control.maxRegionsAe is 0.
+ * Otherwise will always be present.</p>
+ * <p>The maximum number of regions supported by the device is determined by the value
+ * of android.control.maxRegionsAe.</p>
+ * <p>The data representation is int[5 * area_count].
+ * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+ * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+ * ymax.</p>
+ * <p>The coordinate system is based on the active pixel array,
+ * with (0,0) being the top-left pixel in the active pixel array, and
+ * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+ * bottom-right pixel in the active pixel array.</p>
+ * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
+ * for every pixel in the area. This means that a large metering area
+ * with the same weight as a smaller area will have more effect in
+ * the metering result. Metering areas can partially overlap and the
+ * camera device will add the weights in the overlap region.</p>
+ * <p>The weights are relative to weights of other exposure metering regions, so if only one
+ * region is used, all non-zero weights will have the same effect. A region with 0
+ * weight is ignored.</p>
+ * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+ * camera device.</p>
+ * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+ * capture result metadata, the camera device will ignore the sections outside the crop
+ * region and output only the intersection rectangle as the metering region in the result
+ * metadata. If the region is entirely outside the crop region, it will be ignored and
+ * not reported in the result metadata.</p>
+ *
+ * @see ACAMERA_SCALER_CROP_REGION
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_CONTROL_AE_REGIONS = // int32[5*area_count]
+ ACAMERA_CONTROL_START + 4,
+ /**
+ * <p>Range over which the auto-exposure routine can
+ * adjust the capture frame rate to maintain good
+ * exposure.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Only constrains auto-exposure (AE) algorithm, not
+ * manual control of ACAMERA_SENSOR_EXPOSURE_TIME and
+ * ACAMERA_SENSOR_FRAME_DURATION.</p>
+ *
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ */
+ ACAMERA_CONTROL_AE_TARGET_FPS_RANGE = // int32[2]
+ ACAMERA_CONTROL_START + 5,
+ /**
+ * <p>Whether the camera device will trigger a precapture
+ * metering sequence when it processes this request.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This entry is normally set to IDLE, or is not
+ * included at all in the request settings. When included and
+ * set to START, the camera device will trigger the auto-exposure (AE)
+ * precapture metering sequence.</p>
+ * <p>When set to CANCEL, the camera device will cancel any active
+ * precapture metering trigger, and return to its initial AE state.
+ * If a precapture metering sequence is already completed, and the camera
+ * device has implicitly locked the AE for subsequent still capture, the
+ * CANCEL trigger will unlock the AE and return to its initial AE state.</p>
+ * <p>The precapture sequence should be triggered before starting a
+ * high-quality still capture for final metering decisions to
+ * be made, and for firing pre-capture flash pulses to estimate
+ * scene brightness and required final capture flash power, when
+ * the flash is enabled.</p>
+ * <p>Normally, this entry should be set to START for only a
+ * single request, and the application should wait until the
+ * sequence completes before starting a new one.</p>
+ * <p>When a precapture metering sequence is finished, the camera device
+ * may lock the auto-exposure routine internally to be able to accurately expose the
+ * subsequent still capture image (<code>ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE</code>).
+ * For this case, the AE may not resume normal scan if no subsequent still capture is
+ * submitted. To ensure that the AE routine restarts normal scan, the application should
+ * submit a request with <code>ACAMERA_CONTROL_AE_LOCK == true</code>, followed by a request
+ * with <code>ACAMERA_CONTROL_AE_LOCK == false</code>, if the application decides not to submit a
+ * still capture request after the precapture sequence completes. Alternatively, for
+ * API level 23 or newer devices, the CANCEL can be used to unlock the camera device
+ * internally locked AE if the application doesn't submit a still capture request after
+ * the AE precapture trigger. Note that, the CANCEL was added in API level 23, and must not
+ * be used in devices that have earlier API levels.</p>
+ * <p>The exact effect of auto-exposure (AE) precapture trigger
+ * depends on the current AE mode and state; see
+ * ACAMERA_CONTROL_AE_STATE for AE precapture state transition
+ * details.</p>
+ * <p>On LEGACY-level devices, the precapture trigger is not supported;
+ * capturing a high-resolution JPEG image will automatically trigger a
+ * precapture sequence before the high-resolution capture, including
+ * potentially firing a pre-capture flash.</p>
+ * <p>Using the precapture trigger and the auto-focus trigger ACAMERA_CONTROL_AF_TRIGGER
+ * simultaneously is allowed. However, since these triggers often require cooperation between
+ * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
+ * focus sweep), the camera device may delay acting on a later trigger until the previous
+ * trigger has been fully handled. This may lead to longer intervals between the trigger and
+ * changes to ACAMERA_CONTROL_AE_STATE indicating the start of the precapture sequence, for
+ * example.</p>
+ * <p>If both the precapture and the auto-focus trigger are activated on the same request, then
+ * the camera device will complete them in the optimal order for that device.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_LOCK
+ * @see ACAMERA_CONTROL_AE_STATE
+ * @see ACAMERA_CONTROL_AF_TRIGGER
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ */
+ ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER = // byte (enum)
+ ACAMERA_CONTROL_START + 6,
+ /**
+ * <p>Whether auto-focus (AF) is currently enabled, and what
+ * mode it is set to.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Only effective if ACAMERA_CONTROL_MODE = AUTO and the lens is not fixed focus
+ * (i.e. <code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE > 0</code>). Also note that
+ * when ACAMERA_CONTROL_AE_MODE is OFF, the behavior of AF is device
+ * dependent. It is recommended to lock AF by using ACAMERA_CONTROL_AF_TRIGGER before
+ * setting ACAMERA_CONTROL_AE_MODE to OFF, or set AF mode to OFF when AE is OFF.</p>
+ * <p>If the lens is controlled by the camera device auto-focus algorithm,
+ * the camera device will report the current AF status in ACAMERA_CONTROL_AF_STATE
+ * in result metadata.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AF_STATE
+ * @see ACAMERA_CONTROL_AF_TRIGGER
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+ */
+ ACAMERA_CONTROL_AF_MODE = // byte (enum)
+ ACAMERA_CONTROL_START + 7,
+ /**
+ * <p>List of metering areas to use for auto-focus.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Not available if android.control.maxRegionsAf is 0.
+ * Otherwise will always be present.</p>
+ * <p>The maximum number of focus areas supported by the device is determined by the value
+ * of android.control.maxRegionsAf.</p>
+ * <p>The data representation is int[5 * area_count].
+ * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+ * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+ * ymax.</p>
+ * <p>The coordinate system is based on the active pixel array,
+ * with (0,0) being the top-left pixel in the active pixel array, and
+ * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+ * bottom-right pixel in the active pixel array.</p>
+ * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
+ * for every pixel in the area. This means that a large metering area
+ * with the same weight as a smaller area will have more effect in
+ * the metering result. Metering areas can partially overlap and the
+ * camera device will add the weights in the overlap region.</p>
+ * <p>The weights are relative to weights of other metering regions, so if only one region
+ * is used, all non-zero weights will have the same effect. A region with 0 weight is
+ * ignored.</p>
+ * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+ * camera device.</p>
+ * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+ * capture result metadata, the camera device will ignore the sections outside the crop
+ * region and output only the intersection rectangle as the metering region in the result
+ * metadata. If the region is entirely outside the crop region, it will be ignored and
+ * not reported in the result metadata.</p>
+ *
+ * @see ACAMERA_SCALER_CROP_REGION
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_CONTROL_AF_REGIONS = // int32[5*area_count]
+ ACAMERA_CONTROL_START + 8,
+ /**
+ * <p>Whether the camera device will trigger autofocus for this request.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This entry is normally set to IDLE, or is not
+ * included at all in the request settings.</p>
+ * <p>When included and set to START, the camera device will trigger the
+ * autofocus algorithm. If autofocus is disabled, this trigger has no effect.</p>
+ * <p>When set to CANCEL, the camera device will cancel any active trigger,
+ * and return to its initial AF state.</p>
+ * <p>Generally, applications should set this entry to START or CANCEL for only a
+ * single capture, and then return it to IDLE (or not set at all). Specifying
+ * START for multiple captures in a row means restarting the AF operation over
+ * and over again.</p>
+ * <p>See ACAMERA_CONTROL_AF_STATE for what the trigger means for each AF mode.</p>
+ * <p>Using the autofocus trigger and the precapture trigger ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * simultaneously is allowed. However, since these triggers often require cooperation between
+ * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
+ * focus sweep), the camera device may delay acting on a later trigger until the previous
+ * trigger has been fully handled. This may lead to longer intervals between the trigger and
+ * changes to ACAMERA_CONTROL_AF_STATE, for example.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * @see ACAMERA_CONTROL_AF_STATE
+ */
+ ACAMERA_CONTROL_AF_TRIGGER = // byte (enum)
+ ACAMERA_CONTROL_START + 9,
+ /**
+ * <p>Whether auto-white balance (AWB) is currently locked to its
+ * latest calculated values.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When set to <code>true</code> (ON), the AWB algorithm is locked to its latest parameters,
+ * and will not change color balance settings until the lock is set to <code>false</code> (OFF).</p>
+ * <p>Since the camera device has a pipeline of in-flight requests, the settings that
+ * get locked do not necessarily correspond to the settings that were present in the
+ * latest capture result received from the camera device, since additional captures
+ * and AWB updates may have occurred even before the result was sent out. If an
+ * application is switching between automatic and manual control and wishes to eliminate
+ * any flicker during the switch, the following procedure is recommended:</p>
+ * <ol>
+ * <li>Starting in auto-AWB mode:</li>
+ * <li>Lock AWB</li>
+ * <li>Wait for the first result to be output that has the AWB locked</li>
+ * <li>Copy AWB settings from that result into a request, set the request to manual AWB</li>
+ * <li>Submit the capture request, proceed to run manual AWB as desired.</li>
+ * </ol>
+ * <p>Note that AWB lock is only meaningful when
+ * ACAMERA_CONTROL_AWB_MODE is in the AUTO mode; in other modes,
+ * AWB is already fixed to a specific setting.</p>
+ * <p>Some LEGACY devices may not support ON; the value is then overridden to OFF.</p>
+ *
+ * @see ACAMERA_CONTROL_AWB_MODE
+ */
+ ACAMERA_CONTROL_AWB_LOCK = // byte (enum)
+ ACAMERA_CONTROL_START + 10,
+ /**
+ * <p>Whether auto-white balance (AWB) is currently setting the color
+ * transform fields, and what its illumination target
+ * is.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This control is only effective if ACAMERA_CONTROL_MODE is AUTO.</p>
+ * <p>When set to the ON mode, the camera device's auto-white balance
+ * routine is enabled, overriding the application's selected
+ * ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS and
+ * ACAMERA_COLOR_CORRECTION_MODE. Note that when ACAMERA_CONTROL_AE_MODE
+ * is OFF, the behavior of AWB is device dependent. It is recommened to
+ * also set AWB mode to OFF or lock AWB by using ACAMERA_CONTROL_AWB_LOCK before
+ * setting AE mode to OFF.</p>
+ * <p>When set to the OFF mode, the camera device's auto-white balance
+ * routine is disabled. The application manually controls the white
+ * balance by ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS
+ * and ACAMERA_COLOR_CORRECTION_MODE.</p>
+ * <p>When set to any other modes, the camera device's auto-white
+ * balance routine is disabled. The camera device uses each
+ * particular illumination target for white balance
+ * adjustment. The application's values for
+ * ACAMERA_COLOR_CORRECTION_TRANSFORM,
+ * ACAMERA_COLOR_CORRECTION_GAINS and
+ * ACAMERA_COLOR_CORRECTION_MODE are ignored.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_MODE
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AWB_LOCK
+ * @see ACAMERA_CONTROL_MODE
+ */
+ ACAMERA_CONTROL_AWB_MODE = // byte (enum)
+ ACAMERA_CONTROL_START + 11,
+ /**
+ * <p>List of metering areas to use for auto-white-balance illuminant
+ * estimation.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Not available if android.control.maxRegionsAwb is 0.
+ * Otherwise will always be present.</p>
+ * <p>The maximum number of regions supported by the device is determined by the value
+ * of android.control.maxRegionsAwb.</p>
+ * <p>The data representation is int[5 * area_count].
+ * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+ * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+ * ymax.</p>
+ * <p>The coordinate system is based on the active pixel array,
+ * with (0,0) being the top-left pixel in the active pixel array, and
+ * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+ * bottom-right pixel in the active pixel array.</p>
+ * <p>The weight must range from 0 to 1000, and represents a weight
+ * for every pixel in the area. This means that a large metering area
+ * with the same weight as a smaller area will have more effect in
+ * the metering result. Metering areas can partially overlap and the
+ * camera device will add the weights in the overlap region.</p>
+ * <p>The weights are relative to weights of other white balance metering regions, so if
+ * only one region is used, all non-zero weights will have the same effect. A region with
+ * 0 weight is ignored.</p>
+ * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+ * camera device.</p>
+ * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+ * capture result metadata, the camera device will ignore the sections outside the crop
+ * region and output only the intersection rectangle as the metering region in the result
+ * metadata. If the region is entirely outside the crop region, it will be ignored and
+ * not reported in the result metadata.</p>
+ *
+ * @see ACAMERA_SCALER_CROP_REGION
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_CONTROL_AWB_REGIONS = // int32[5*area_count]
+ ACAMERA_CONTROL_START + 12,
+ /**
+ * <p>Information to the camera device 3A (auto-exposure,
+ * auto-focus, auto-white balance) routines about the purpose
+ * of this capture, to help the camera device to decide optimal 3A
+ * strategy.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This control (except for MANUAL) is only effective if
+ * <code>ACAMERA_CONTROL_MODE != OFF</code> and any 3A routine is active.</p>
+ * <p>ZERO_SHUTTER_LAG will be supported if ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ * contains PRIVATE_REPROCESSING or YUV_REPROCESSING. MANUAL will be supported if
+ * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains MANUAL_SENSOR. Other intent values are
+ * always supported.</p>
+ *
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ */
+ ACAMERA_CONTROL_CAPTURE_INTENT = // byte (enum)
+ ACAMERA_CONTROL_START + 13,
+ /**
+ * <p>A special color effect to apply.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When this mode is set, a color effect will be applied
+ * to images produced by the camera device. The interpretation
+ * and implementation of these color effects is left to the
+ * implementor of the camera device, and should not be
+ * depended on to be consistent (or present) across all
+ * devices.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE = // byte (enum)
+ ACAMERA_CONTROL_START + 14,
+ /**
+ * <p>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control
+ * routines.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This is a top-level 3A control switch. When set to OFF, all 3A control
+ * by the camera device is disabled. The application must set the fields for
+ * capture parameters itself.</p>
+ * <p>When set to AUTO, the individual algorithm controls in
+ * ACAMERA_CONTROL_* are in effect, such as ACAMERA_CONTROL_AF_MODE.</p>
+ * <p>When set to USE_SCENE_MODE, the individual controls in
+ * ACAMERA_CONTROL_* are mostly disabled, and the camera device implements
+ * one of the scene mode settings (such as ACTION, SUNSET, or PARTY)
+ * as it wishes. The camera device scene mode 3A settings are provided by
+ * capture results {@link ACameraMetadata} from
+ * {@link ACameraCaptureSession_captureCallback_result}.</p>
+ * <p>When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference
+ * is that this frame will not be used by camera device background 3A statistics
+ * update, as if this frame is never captured. This mode can be used in the scenario
+ * where the application doesn't want a 3A manual control capture to affect
+ * the subsequent auto 3A capture results.</p>
+ *
+ * @see ACAMERA_CONTROL_AF_MODE
+ */
+ ACAMERA_CONTROL_MODE = // byte (enum)
+ ACAMERA_CONTROL_START + 15,
+ /**
+ * <p>Control for which scene mode is currently active.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Scene modes are custom camera modes optimized for a certain set of conditions and
+ * capture settings.</p>
+ * <p>This is the mode that that is active when
+ * <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code>. Aside from FACE_PRIORITY, these modes will
+ * disable ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
+ * while in use.</p>
+ * <p>The interpretation and implementation of these scene modes is left
+ * to the implementor of the camera device. Their behavior will not be
+ * consistent across all devices, and any given device may only implement
+ * a subset of these modes.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AF_MODE
+ * @see ACAMERA_CONTROL_AWB_MODE
+ * @see ACAMERA_CONTROL_MODE
+ */
+ ACAMERA_CONTROL_SCENE_MODE = // byte (enum)
+ ACAMERA_CONTROL_START + 16,
+ /**
+ * <p>Whether video stabilization is
+ * active.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Video stabilization automatically warps images from
+ * the camera in order to stabilize motion between consecutive frames.</p>
+ * <p>If enabled, video stabilization can modify the
+ * ACAMERA_SCALER_CROP_REGION to keep the video stream stabilized.</p>
+ * <p>Switching between different video stabilization modes may take several
+ * frames to initialize, the camera device will report the current mode
+ * in capture result metadata. For example, When "ON" mode is requested,
+ * the video stabilization modes in the first several capture results may
+ * still be "OFF", and it will become "ON" when the initialization is
+ * done.</p>
+ * <p>In addition, not all recording sizes or frame rates may be supported for
+ * stabilization by a device that reports stabilization support. It is guaranteed
+ * that an output targeting a MediaRecorder or MediaCodec will be stabilized if
+ * the recording resolution is less than or equal to 1920 x 1080 (width less than
+ * or equal to 1920, height less than or equal to 1080), and the recording
+ * frame rate is less than or equal to 30fps. At other sizes, the CaptureResult
+ * ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE field will return
+ * OFF if the recording output is not stabilized, or if there are no output
+ * Surface types that can be stabilized.</p>
+ * <p>If a camera device supports both this mode and OIS
+ * (ACAMERA_LENS_OPTICAL_STABILIZATION_MODE), turning both modes on may
+ * produce undesirable interaction, so it is recommended not to enable
+ * both at the same time.</p>
+ *
+ * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+ * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+ * @see ACAMERA_SCALER_CROP_REGION
+ */
+ ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE = // byte (enum)
+ ACAMERA_CONTROL_START + 17,
+ /**
+ * <p>List of auto-exposure antibanding modes for ACAMERA_CONTROL_AE_ANTIBANDING_MODE that are
+ * supported by this camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Not all of the auto-exposure anti-banding modes may be
+ * supported by a given camera device. This field lists the
+ * valid anti-banding modes that the application may request
+ * for this camera device with the
+ * ACAMERA_CONTROL_AE_ANTIBANDING_MODE control.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+ */
+ ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES = // byte[n]
+ ACAMERA_CONTROL_START + 18,
+ /**
+ * <p>List of auto-exposure modes for ACAMERA_CONTROL_AE_MODE that are supported by this camera
+ * device.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Not all the auto-exposure modes may be supported by a
+ * given camera device, especially if no flash unit is
+ * available. This entry lists the valid modes for
+ * ACAMERA_CONTROL_AE_MODE for this camera device.</p>
+ * <p>All camera devices support ON, and all camera devices with flash
+ * units support ON_AUTO_FLASH and ON_ALWAYS_FLASH.</p>
+ * <p>FULL mode camera devices always support OFF mode,
+ * which enables application control of camera exposure time,
+ * sensitivity, and frame duration.</p>
+ * <p>LEGACY mode camera devices never support OFF mode.
+ * LIMITED mode devices support OFF if they support the MANUAL_SENSOR
+ * capability.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ */
+ ACAMERA_CONTROL_AE_AVAILABLE_MODES = // byte[n]
+ ACAMERA_CONTROL_START + 19,
+ /**
+ * <p>List of frame rate ranges for ACAMERA_CONTROL_AE_TARGET_FPS_RANGE supported by
+ * this camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_TARGET_FPS_RANGE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>For devices at the LEGACY level or above:</p>
+ * <ul>
+ * <li>
+ * <p>For constant-framerate recording, for each normal
+ * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>, that is, a
+ * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a> that has
+ * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#quality">quality</a>
+ * in the range [
+ * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_LOW">QUALITY_LOW</a>,
+ * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_2160P">QUALITY_2160P</a>],
+ * if the profile is supported by the device and has
+ * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a>
+ * <code>x</code>, this list will always include (<code>x</code>,<code>x</code>).</p>
+ * </li>
+ * <li>
+ * <p>Also, a camera device must either not support any
+ * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>,
+ * or support at least one
+ * normal <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>
+ * that has
+ * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a> <code>x</code> >= 24.</p>
+ * </li>
+ * </ul>
+ * <p>For devices at the LIMITED level or above:</p>
+ * <ul>
+ * <li>For YUV_420_888 burst capture use case, this list will always include (<code>min</code>, <code>max</code>)
+ * and (<code>max</code>, <code>max</code>) where <code>min</code> <= 15 and <code>max</code> = the maximum output frame rate of the
+ * maximum YUV_420_888 output size.</li>
+ * </ul>
+ */
+ ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES = // int32[2*n]
+ ACAMERA_CONTROL_START + 20,
+ /**
+ * <p>Maximum and minimum exposure compensation values for
+ * ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION, in counts of ACAMERA_CONTROL_AE_COMPENSATION_STEP,
+ * that are supported by this camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
+ * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_CONTROL_AE_COMPENSATION_RANGE = // int32[2]
+ ACAMERA_CONTROL_START + 21,
+ /**
+ * <p>Smallest step by which the exposure compensation
+ * can be changed.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This is the unit for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION. For example, if this key has
+ * a value of <code>1/2</code>, then a setting of <code>-2</code> for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION means
+ * that the target EV offset for the auto-exposure routine is -1 EV.</p>
+ * <p>One unit of EV compensation changes the brightness of the captured image by a factor
+ * of two. +1 EV doubles the image brightness, while -1 EV halves the image brightness.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+ */
+ ACAMERA_CONTROL_AE_COMPENSATION_STEP = // rational
+ ACAMERA_CONTROL_START + 22,
+ /**
+ * <p>List of auto-focus (AF) modes for ACAMERA_CONTROL_AF_MODE that are
+ * supported by this camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_AF_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Not all the auto-focus modes may be supported by a
+ * given camera device. This entry lists the valid modes for
+ * ACAMERA_CONTROL_AF_MODE for this camera device.</p>
+ * <p>All LIMITED and FULL mode camera devices will support OFF mode, and all
+ * camera devices with adjustable focuser units
+ * (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE > 0</code>) will support AUTO mode.</p>
+ * <p>LEGACY devices will support OFF mode only if they support
+ * focusing to infinity (by also setting ACAMERA_LENS_FOCUS_DISTANCE to
+ * <code>0.0f</code>).</p>
+ *
+ * @see ACAMERA_CONTROL_AF_MODE
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+ */
+ ACAMERA_CONTROL_AF_AVAILABLE_MODES = // byte[n]
+ ACAMERA_CONTROL_START + 23,
+ /**
+ * <p>List of color effects for ACAMERA_CONTROL_EFFECT_MODE that are supported by this camera
+ * device.</p>
+ *
+ * @see ACAMERA_CONTROL_EFFECT_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This list contains the color effect modes that can be applied to
+ * images produced by the camera device.
+ * Implementations are not expected to be consistent across all devices.
+ * If no color effect modes are available for a device, this will only list
+ * OFF.</p>
+ * <p>A color effect will only be applied if
+ * ACAMERA_CONTROL_MODE != OFF. OFF is always included in this list.</p>
+ * <p>This control has no effect on the operation of other control routines such
+ * as auto-exposure, white balance, or focus.</p>
+ *
+ * @see ACAMERA_CONTROL_MODE
+ */
+ ACAMERA_CONTROL_AVAILABLE_EFFECTS = // byte[n]
+ ACAMERA_CONTROL_START + 24,
+ /**
+ * <p>List of scene modes for ACAMERA_CONTROL_SCENE_MODE that are supported by this camera
+ * device.</p>
+ *
+ * @see ACAMERA_CONTROL_SCENE_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This list contains scene modes that can be set for the camera device.
+ * Only scene modes that have been fully implemented for the
+ * camera device may be included here. Implementations are not expected
+ * to be consistent across all devices.</p>
+ * <p>If no scene modes are supported by the camera device, this
+ * will be set to DISABLED. Otherwise DISABLED will not be listed.</p>
+ * <p>FACE_PRIORITY is always listed if face detection is
+ * supported (i.e.<code>ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT >
+ * 0</code>).</p>
+ *
+ * @see ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT
+ */
+ ACAMERA_CONTROL_AVAILABLE_SCENE_MODES = // byte[n]
+ ACAMERA_CONTROL_START + 25,
+ /**
+ * <p>List of video stabilization modes for ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+ * that are supported by this camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>OFF will always be listed.</p>
+ */
+ ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES = // byte[n]
+ ACAMERA_CONTROL_START + 26,
+ /**
+ * <p>List of auto-white-balance modes for ACAMERA_CONTROL_AWB_MODE that are supported by this
+ * camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_AWB_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Not all the auto-white-balance modes may be supported by a
+ * given camera device. This entry lists the valid modes for
+ * ACAMERA_CONTROL_AWB_MODE for this camera device.</p>
+ * <p>All camera devices will support ON mode.</p>
+ * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always support OFF
+ * mode, which enables application control of white balance, by using
+ * ACAMERA_COLOR_CORRECTION_TRANSFORM and ACAMERA_COLOR_CORRECTION_GAINS(ACAMERA_COLOR_CORRECTION_MODE must be set to TRANSFORM_MATRIX). This includes all FULL
+ * mode camera devices.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_MODE
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * @see ACAMERA_CONTROL_AWB_MODE
+ */
+ ACAMERA_CONTROL_AWB_AVAILABLE_MODES = // byte[n]
+ ACAMERA_CONTROL_START + 27,
+ /**
+ * <p>List of the maximum number of regions that can be used for metering in
+ * auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF);
+ * this corresponds to the the maximum number of elements in
+ * ACAMERA_CONTROL_AE_REGIONS, ACAMERA_CONTROL_AWB_REGIONS,
+ * and ACAMERA_CONTROL_AF_REGIONS.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_REGIONS
+ * @see ACAMERA_CONTROL_AF_REGIONS
+ * @see ACAMERA_CONTROL_AWB_REGIONS
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_CONTROL_MAX_REGIONS = // int32[3]
+ ACAMERA_CONTROL_START + 28,
+ /**
+ * <p>Current state of the auto-exposure (AE) algorithm.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Switching between or enabling AE modes (ACAMERA_CONTROL_AE_MODE) always
+ * resets the AE state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+ * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+ * the algorithm states to INACTIVE.</p>
+ * <p>The camera device can do several state transitions between two results, if it is
+ * allowed by the state transition table. For example: INACTIVE may never actually be
+ * seen in a result.</p>
+ * <p>The state in the result is the state for this image (in sync with this image): if
+ * AE state becomes CONVERGED, then the image data associated with this result should
+ * be good to use.</p>
+ * <p>Below are state transition tables for different AE modes.</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :------------:|:----------------:|:---------:|:-----------------------:
+ * INACTIVE | | INACTIVE | Camera device auto exposure algorithm is disabled</p>
+ * <p>When ACAMERA_CONTROL_AE_MODE is AE_MODE_ON_*:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-------------:|:--------------------------------------------:|:--------------:|:-----------------:
+ * INACTIVE | Camera device initiates AE scan | SEARCHING | Values changing
+ * INACTIVE | ACAMERA_CONTROL_AE_LOCK is ON | LOCKED | Values locked
+ * SEARCHING | Camera device finishes AE scan | CONVERGED | Good values, not changing
+ * SEARCHING | Camera device finishes AE scan | FLASH_REQUIRED | Converged but too dark w/o flash
+ * SEARCHING | ACAMERA_CONTROL_AE_LOCK is ON | LOCKED | Values locked
+ * CONVERGED | Camera device initiates AE scan | SEARCHING | Values changing
+ * CONVERGED | ACAMERA_CONTROL_AE_LOCK is ON | LOCKED | Values locked
+ * FLASH_REQUIRED | Camera device initiates AE scan | SEARCHING | Values changing
+ * FLASH_REQUIRED | ACAMERA_CONTROL_AE_LOCK is ON | LOCKED | Values locked
+ * LOCKED | ACAMERA_CONTROL_AE_LOCK is OFF | SEARCHING | Values not good after unlock
+ * LOCKED | ACAMERA_CONTROL_AE_LOCK is OFF | CONVERGED | Values good after unlock
+ * LOCKED | ACAMERA_CONTROL_AE_LOCK is OFF | FLASH_REQUIRED | Exposure good, but too dark
+ * PRECAPTURE | Sequence done. ACAMERA_CONTROL_AE_LOCK is OFF | CONVERGED | Ready for high-quality capture
+ * PRECAPTURE | Sequence done. ACAMERA_CONTROL_AE_LOCK is ON | LOCKED | Ready for high-quality capture
+ * LOCKED | aeLock is ON and aePrecaptureTrigger is START | LOCKED | Precapture trigger is ignored when AE is already locked
+ * LOCKED | aeLock is ON and aePrecaptureTrigger is CANCEL| LOCKED | Precapture trigger is ignored when AE is already locked
+ * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START | PRECAPTURE | Start AE precapture metering sequence
+ * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL| INACTIVE | Currently active precapture metering sequence is canceled</p>
+ * <p>For the above table, the camera device may skip reporting any state changes that happen
+ * without application intervention (i.e. mode switch, trigger, locking). Any state that
+ * can be skipped in that manner is called a transient state.</p>
+ * <p>For example, for above AE modes (AE_MODE_ON_*), in addition to the state transitions
+ * listed in above table, it is also legal for the camera device to skip one or more
+ * transient states between two results. See below table for examples:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-------------:|:-----------------------------------------------------------:|:--------------:|:-----------------:
+ * INACTIVE | Camera device finished AE scan | CONVERGED | Values are already good, transient states are skipped by camera device.
+ * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence, transient states are skipped by camera device.
+ * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | CONVERGED | Converged after a precapture sequence, transient states are skipped by camera device.
+ * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence is canceled, transient states are skipped by camera device.
+ * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged | CONVERGED | Converged after a precapture sequenceis canceled, transient states are skipped by camera device.
+ * CONVERGED | Camera device finished AE scan | FLASH_REQUIRED | Converged but too dark w/o flash after a new scan, transient states are skipped by camera device.
+ * FLASH_REQUIRED | Camera device finished AE scan | CONVERGED | Converged after a new scan, transient states are skipped by camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_LOCK
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_CONTROL_SCENE_MODE
+ */
+ ACAMERA_CONTROL_AE_STATE = // byte (enum)
+ ACAMERA_CONTROL_START + 31,
+ /**
+ * <p>Current state of auto-focus (AF) algorithm.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Switching between or enabling AF modes (ACAMERA_CONTROL_AF_MODE) always
+ * resets the AF state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+ * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+ * the algorithm states to INACTIVE.</p>
+ * <p>The camera device can do several state transitions between two results, if it is
+ * allowed by the state transition table. For example: INACTIVE may never actually be
+ * seen in a result.</p>
+ * <p>The state in the result is the state for this image (in sync with this image): if
+ * AF state becomes FOCUSED, then the image data associated with this result should
+ * be sharp.</p>
+ * <p>Below are state transition tables for different AF modes.</p>
+ * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_OFF or AF_MODE_EDOF:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :------------:|:----------------:|:---------:|:-----------:
+ * INACTIVE | | INACTIVE | Never changes</p>
+ * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_AUTO or AF_MODE_MACRO:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-----------------:|:----------------:|:------------------:|:--------------:
+ * INACTIVE | AF_TRIGGER | ACTIVE_SCAN | Start AF sweep, Lens now moving
+ * ACTIVE_SCAN | AF sweep done | FOCUSED_LOCKED | Focused, Lens now locked
+ * ACTIVE_SCAN | AF sweep done | NOT_FOCUSED_LOCKED | Not focused, Lens now locked
+ * ACTIVE_SCAN | AF_CANCEL | INACTIVE | Cancel/reset AF, Lens now locked
+ * FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Cancel/reset AF
+ * FOCUSED_LOCKED | AF_TRIGGER | ACTIVE_SCAN | Start new sweep, Lens now moving
+ * NOT_FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Cancel/reset AF
+ * NOT_FOCUSED_LOCKED | AF_TRIGGER | ACTIVE_SCAN | Start new sweep, Lens now moving
+ * Any state | Mode change | INACTIVE |</p>
+ * <p>For the above table, the camera device may skip reporting any state changes that happen
+ * without application intervention (i.e. mode switch, trigger, locking). Any state that
+ * can be skipped in that manner is called a transient state.</p>
+ * <p>For example, for these AF modes (AF_MODE_AUTO and AF_MODE_MACRO), in addition to the
+ * state transitions listed in above table, it is also legal for the camera device to skip
+ * one or more transient states between two results. See below table for examples:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-----------------:|:----------------:|:------------------:|:--------------:
+ * INACTIVE | AF_TRIGGER | FOCUSED_LOCKED | Focus is already good or good after a scan, lens is now locked.
+ * INACTIVE | AF_TRIGGER | NOT_FOCUSED_LOCKED | Focus failed after a scan, lens is now locked.
+ * FOCUSED_LOCKED | AF_TRIGGER | FOCUSED_LOCKED | Focus is already good or good after a scan, lens is now locked.
+ * NOT_FOCUSED_LOCKED | AF_TRIGGER | FOCUSED_LOCKED | Focus is good after a scan, lens is not locked.</p>
+ * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_VIDEO:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-----------------:|:-----------------------------------:|:------------------:|:--------------:
+ * INACTIVE | Camera device initiates new scan | PASSIVE_SCAN | Start AF scan, Lens now moving
+ * INACTIVE | AF_TRIGGER | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
+ * PASSIVE_SCAN | Camera device completes current scan| PASSIVE_FOCUSED | End AF scan, Lens now locked
+ * PASSIVE_SCAN | Camera device fails current scan | PASSIVE_UNFOCUSED | End AF scan, Lens now locked
+ * PASSIVE_SCAN | AF_TRIGGER | FOCUSED_LOCKED | Immediate transition, if focus is good. Lens now locked
+ * PASSIVE_SCAN | AF_TRIGGER | NOT_FOCUSED_LOCKED | Immediate transition, if focus is bad. Lens now locked
+ * PASSIVE_SCAN | AF_CANCEL | INACTIVE | Reset lens position, Lens now locked
+ * PASSIVE_FOCUSED | Camera device initiates new scan | PASSIVE_SCAN | Start AF scan, Lens now moving
+ * PASSIVE_UNFOCUSED | Camera device initiates new scan | PASSIVE_SCAN | Start AF scan, Lens now moving
+ * PASSIVE_FOCUSED | AF_TRIGGER | FOCUSED_LOCKED | Immediate transition, lens now locked
+ * PASSIVE_UNFOCUSED | AF_TRIGGER | NOT_FOCUSED_LOCKED | Immediate transition, lens now locked
+ * FOCUSED_LOCKED | AF_TRIGGER | FOCUSED_LOCKED | No effect
+ * FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Restart AF scan
+ * NOT_FOCUSED_LOCKED | AF_TRIGGER | NOT_FOCUSED_LOCKED | No effect
+ * NOT_FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Restart AF scan</p>
+ * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_PICTURE:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-----------------:|:------------------------------------:|:------------------:|:--------------:
+ * INACTIVE | Camera device initiates new scan | PASSIVE_SCAN | Start AF scan, Lens now moving
+ * INACTIVE | AF_TRIGGER | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
+ * PASSIVE_SCAN | Camera device completes current scan | PASSIVE_FOCUSED | End AF scan, Lens now locked
+ * PASSIVE_SCAN | Camera device fails current scan | PASSIVE_UNFOCUSED | End AF scan, Lens now locked
+ * PASSIVE_SCAN | AF_TRIGGER | FOCUSED_LOCKED | Eventual transition once the focus is good. Lens now locked
+ * PASSIVE_SCAN | AF_TRIGGER | NOT_FOCUSED_LOCKED | Eventual transition if cannot find focus. Lens now locked
+ * PASSIVE_SCAN | AF_CANCEL | INACTIVE | Reset lens position, Lens now locked
+ * PASSIVE_FOCUSED | Camera device initiates new scan | PASSIVE_SCAN | Start AF scan, Lens now moving
+ * PASSIVE_UNFOCUSED | Camera device initiates new scan | PASSIVE_SCAN | Start AF scan, Lens now moving
+ * PASSIVE_FOCUSED | AF_TRIGGER | FOCUSED_LOCKED | Immediate trans. Lens now locked
+ * PASSIVE_UNFOCUSED | AF_TRIGGER | NOT_FOCUSED_LOCKED | Immediate trans. Lens now locked
+ * FOCUSED_LOCKED | AF_TRIGGER | FOCUSED_LOCKED | No effect
+ * FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Restart AF scan
+ * NOT_FOCUSED_LOCKED | AF_TRIGGER | NOT_FOCUSED_LOCKED | No effect
+ * NOT_FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Restart AF scan</p>
+ * <p>When switch between AF_MODE_CONTINUOUS_* (CAF modes) and AF_MODE_AUTO/AF_MODE_MACRO
+ * (AUTO modes), the initial INACTIVE or PASSIVE_SCAN states may be skipped by the
+ * camera device. When a trigger is included in a mode switch request, the trigger
+ * will be evaluated in the context of the new mode in the request.
+ * See below table for examples:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-----------:|:--------------------------------------:|:----------------------------------------:|:--------------:
+ * any state | CAF-->AUTO mode switch | INACTIVE | Mode switch without trigger, initial state must be INACTIVE
+ * any state | CAF-->AUTO mode switch with AF_TRIGGER | trigger-reachable states from INACTIVE | Mode switch with trigger, INACTIVE is skipped
+ * any state | AUTO-->CAF mode switch | passively reachable states from INACTIVE | Mode switch without trigger, passive transient state is skipped</p>
+ *
+ * @see ACAMERA_CONTROL_AF_MODE
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_CONTROL_SCENE_MODE
+ */
+ ACAMERA_CONTROL_AF_STATE = // byte (enum)
+ ACAMERA_CONTROL_START + 32,
+ /**
+ * <p>Current state of auto-white balance (AWB) algorithm.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Switching between or enabling AWB modes (ACAMERA_CONTROL_AWB_MODE) always
+ * resets the AWB state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+ * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+ * the algorithm states to INACTIVE.</p>
+ * <p>The camera device can do several state transitions between two results, if it is
+ * allowed by the state transition table. So INACTIVE may never actually be seen in
+ * a result.</p>
+ * <p>The state in the result is the state for this image (in sync with this image): if
+ * AWB state becomes CONVERGED, then the image data associated with this result should
+ * be good to use.</p>
+ * <p>Below are state transition tables for different AWB modes.</p>
+ * <p>When <code>ACAMERA_CONTROL_AWB_MODE != AWB_MODE_AUTO</code>:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :------------:|:----------------:|:---------:|:-----------------------:
+ * INACTIVE | |INACTIVE |Camera device auto white balance algorithm is disabled</p>
+ * <p>When ACAMERA_CONTROL_AWB_MODE is AWB_MODE_AUTO:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-------------:|:--------------------------------:|:-------------:|:-----------------:
+ * INACTIVE | Camera device initiates AWB scan | SEARCHING | Values changing
+ * INACTIVE | ACAMERA_CONTROL_AWB_LOCK is ON | LOCKED | Values locked
+ * SEARCHING | Camera device finishes AWB scan | CONVERGED | Good values, not changing
+ * SEARCHING | ACAMERA_CONTROL_AWB_LOCK is ON | LOCKED | Values locked
+ * CONVERGED | Camera device initiates AWB scan | SEARCHING | Values changing
+ * CONVERGED | ACAMERA_CONTROL_AWB_LOCK is ON | LOCKED | Values locked
+ * LOCKED | ACAMERA_CONTROL_AWB_LOCK is OFF | SEARCHING | Values not good after unlock</p>
+ * <p>For the above table, the camera device may skip reporting any state changes that happen
+ * without application intervention (i.e. mode switch, trigger, locking). Any state that
+ * can be skipped in that manner is called a transient state.</p>
+ * <p>For example, for this AWB mode (AWB_MODE_AUTO), in addition to the state transitions
+ * listed in above table, it is also legal for the camera device to skip one or more
+ * transient states between two results. See below table for examples:</p>
+ * <p>State | Transition Cause | New State | Notes
+ * :-------------:|:--------------------------------:|:-------------:|:-----------------:
+ * INACTIVE | Camera device finished AWB scan | CONVERGED | Values are already good, transient states are skipped by camera device.
+ * LOCKED | ACAMERA_CONTROL_AWB_LOCK is OFF | CONVERGED | Values good after unlock, transient states are skipped by camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_AWB_LOCK
+ * @see ACAMERA_CONTROL_AWB_MODE
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_CONTROL_SCENE_MODE
+ */
+ ACAMERA_CONTROL_AWB_STATE = // byte (enum)
+ ACAMERA_CONTROL_START + 34,
+ /**
+ * <p>Whether the camera device supports ACAMERA_CONTROL_AE_LOCK</p>
+ *
+ * @see ACAMERA_CONTROL_AE_LOCK
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Devices with MANUAL_SENSOR capability or BURST_CAPTURE capability will always
+ * list <code>true</code>. This includes FULL devices.</p>
+ */
+ ACAMERA_CONTROL_AE_LOCK_AVAILABLE = // byte (enum)
+ ACAMERA_CONTROL_START + 36,
+ /**
+ * <p>Whether the camera device supports ACAMERA_CONTROL_AWB_LOCK</p>
+ *
+ * @see ACAMERA_CONTROL_AWB_LOCK
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Devices with MANUAL_POST_PROCESSING capability or BURST_CAPTURE capability will
+ * always list <code>true</code>. This includes FULL devices.</p>
+ */
+ ACAMERA_CONTROL_AWB_LOCK_AVAILABLE = // byte (enum)
+ ACAMERA_CONTROL_START + 37,
+ /**
+ * <p>List of control modes for ACAMERA_CONTROL_MODE that are supported by this camera
+ * device.</p>
+ *
+ * @see ACAMERA_CONTROL_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This list contains control modes that can be set for the camera device.
+ * LEGACY mode devices will always support AUTO mode. LIMITED and FULL
+ * devices will always support OFF, AUTO modes.</p>
+ */
+ ACAMERA_CONTROL_AVAILABLE_MODES = // byte[n]
+ ACAMERA_CONTROL_START + 38,
+ /**
+ * <p>Range of boosts for ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST supported
+ * by this camera device.</p>
+ *
+ * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Devices support post RAW sensitivity boost will advertise
+ * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST key for controling
+ * post RAW sensitivity boost.</p>
+ * <p>This key will be <code>null</code> for devices that do not support any RAW format
+ * outputs. For devices that do support RAW format outputs, this key will always
+ * present, and if a device does not support post RAW sensitivity boost, it will
+ * list <code>(100, 100)</code> in this key.</p>
+ *
+ * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+ */
+ ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE = // int32[2]
+ ACAMERA_CONTROL_START + 39,
+ /**
+ * <p>The amount of additional sensitivity boost applied to output images
+ * after RAW sensor data is captured.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Some camera devices support additional digital sensitivity boosting in the
+ * camera processing pipeline after sensor RAW image is captured.
+ * Such a boost will be applied to YUV/JPEG format output images but will not
+ * have effect on RAW output formats like RAW_SENSOR, RAW10, RAW12 or RAW_OPAQUE.</p>
+ * <p>This key will be <code>null</code> for devices that do not support any RAW format
+ * outputs. For devices that do support RAW format outputs, this key will always
+ * present, and if a device does not support post RAW sensitivity boost, it will
+ * list <code>100</code> in this key.</p>
+ * <p>If the camera device cannot apply the exact boost requested, it will reduce the
+ * boost to the nearest supported value.
+ * The final boost value used will be available in the output capture result.</p>
+ * <p>For devices that support post RAW sensitivity boost, the YUV/JPEG output images
+ * of such device will have the total sensitivity of
+ * <code>ACAMERA_SENSOR_SENSITIVITY * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST / 100</code>
+ * The sensitivity of RAW format images will always be <code>ACAMERA_SENSOR_SENSITIVITY</code></p>
+ * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+ * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST = // int32
+ ACAMERA_CONTROL_START + 40,
+ /**
+ * <p>Allow camera device to enable zero-shutter-lag mode for requests with
+ * ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE.</p>
+ *
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>If enableZsl is <code>true</code>, the camera device may enable zero-shutter-lag mode for requests with
+ * STILL_CAPTURE capture intent. The camera device may use images captured in the past to
+ * produce output images for a zero-shutter-lag request. The result metadata including the
+ * ACAMERA_SENSOR_TIMESTAMP reflects the source frames used to produce output images.
+ * Therefore, the contents of the output images and the result metadata may be out of order
+ * compared to previous regular requests. enableZsl does not affect requests with other
+ * capture intents.</p>
+ * <p>For example, when requests are submitted in the following order:
+ * Request A: enableZsl is <code>true</code>, ACAMERA_CONTROL_CAPTURE_INTENT is PREVIEW
+ * Request B: enableZsl is <code>true</code>, ACAMERA_CONTROL_CAPTURE_INTENT is STILL_CAPTURE</p>
+ * <p>The output images for request B may have contents captured before the output images for
+ * request A, and the result metadata for request B may be older than the result metadata for
+ * request A.</p>
+ * <p>Note that when enableZsl is <code>true</code>, it is not guaranteed to get output images captured in the
+ * past for requests with STILL_CAPTURE capture intent.</p>
+ * <p>The value of enableZsl in capture templates is always <code>false</code> if present.</p>
+ *
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ * @see ACAMERA_SENSOR_TIMESTAMP
+ */
+ ACAMERA_CONTROL_ENABLE_ZSL = // byte (enum)
+ ACAMERA_CONTROL_START + 41,
+ ACAMERA_CONTROL_END,
+
+ /**
+ * <p>Operation mode for edge
+ * enhancement.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Edge enhancement improves sharpness and details in the captured image. OFF means
+ * no enhancement will be applied by the camera device.</p>
+ * <p>FAST/HIGH_QUALITY both mean camera device determined enhancement
+ * will be applied. HIGH_QUALITY mode indicates that the
+ * camera device will use the highest-quality enhancement algorithms,
+ * even if it slows down capture rate. FAST means the camera device will
+ * not slow down capture rate when applying edge enhancement. FAST may be the same as OFF if
+ * edge enhancement will slow down capture rate. Every output stream will have a similar
+ * amount of enhancement applied.</p>
+ * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
+ * buffer of high-resolution images during preview and reprocess image(s) from that buffer
+ * into a final capture when triggered by the user. In this mode, the camera device applies
+ * edge enhancement to low-resolution streams (below maximum recording resolution) to
+ * maximize preview quality, but does not apply edge enhancement to high-resolution streams,
+ * since those will be reprocessed later if necessary.</p>
+ * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera
+ * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively.
+ * The camera device may adjust its internal edge enhancement parameters for best
+ * image quality based on the android.reprocess.effectiveExposureFactor, if it is set.</p>
+ */
+ ACAMERA_EDGE_MODE = // byte (enum)
+ ACAMERA_EDGE_START,
+ /**
+ * <p>List of edge enhancement modes for ACAMERA_EDGE_MODE that are supported by this camera
+ * device.</p>
+ *
+ * @see ACAMERA_EDGE_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Full-capability camera devices must always support OFF; camera devices that support
+ * YUV_REPROCESSING or PRIVATE_REPROCESSING will list ZERO_SHUTTER_LAG; all devices will
+ * list FAST.</p>
+ */
+ ACAMERA_EDGE_AVAILABLE_EDGE_MODES = // byte[n]
+ ACAMERA_EDGE_START + 2,
+ ACAMERA_EDGE_END,
+
+ /**
+ * <p>The desired mode for for the camera device's flash control.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This control is only effective when flash unit is available
+ * (<code>ACAMERA_FLASH_INFO_AVAILABLE == true</code>).</p>
+ * <p>When this control is used, the ACAMERA_CONTROL_AE_MODE must be set to ON or OFF.
+ * Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH,
+ * ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.</p>
+ * <p>When set to OFF, the camera device will not fire flash for this capture.</p>
+ * <p>When set to SINGLE, the camera device will fire flash regardless of the camera
+ * device's auto-exposure routine's result. When used in still capture case, this
+ * control should be used along with auto-exposure (AE) precapture metering sequence
+ * (ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER), otherwise, the image may be incorrectly exposed.</p>
+ * <p>When set to TORCH, the flash will be on continuously. This mode can be used
+ * for use cases such as preview, auto-focus assist, still capture, or video recording.</p>
+ * <p>The flash status will be reported by ACAMERA_FLASH_STATE in the capture result metadata.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * @see ACAMERA_FLASH_INFO_AVAILABLE
+ * @see ACAMERA_FLASH_STATE
+ */
+ ACAMERA_FLASH_MODE = // byte (enum)
+ ACAMERA_FLASH_START + 2,
+ /**
+ * <p>Current state of the flash
+ * unit.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>When the camera device doesn't have flash unit
+ * (i.e. <code>ACAMERA_FLASH_INFO_AVAILABLE == false</code>), this state will always be UNAVAILABLE.
+ * Other states indicate the current flash status.</p>
+ * <p>In certain conditions, this will be available on LEGACY devices:</p>
+ * <ul>
+ * <li>Flash-less cameras always return UNAVAILABLE.</li>
+ * <li>Using ACAMERA_CONTROL_AE_MODE <code>==</code> ON_ALWAYS_FLASH
+ * will always return FIRED.</li>
+ * <li>Using ACAMERA_FLASH_MODE <code>==</code> TORCH
+ * will always return FIRED.</li>
+ * </ul>
+ * <p>In all other conditions the state will not be available on
+ * LEGACY devices (i.e. it will be <code>null</code>).</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_FLASH_INFO_AVAILABLE
+ * @see ACAMERA_FLASH_MODE
+ */
+ ACAMERA_FLASH_STATE = // byte (enum)
+ ACAMERA_FLASH_START + 5,
+ ACAMERA_FLASH_END,
+
+ /**
+ * <p>Whether this camera device has a
+ * flash unit.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Will be <code>false</code> if no flash is available.</p>
+ * <p>If there is no flash unit, none of the flash controls do
+ * anything.</p>
+ */
+ ACAMERA_FLASH_INFO_AVAILABLE = // byte (enum)
+ ACAMERA_FLASH_INFO_START,
+ ACAMERA_FLASH_INFO_END,
+
+ /**
+ * <p>Operational mode for hot pixel correction.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Hotpixel correction interpolates out, or otherwise removes, pixels
+ * that do not accurately measure the incoming light (i.e. pixels that
+ * are stuck at an arbitrary value or are oversensitive).</p>
+ */
+ ACAMERA_HOT_PIXEL_MODE = // byte (enum)
+ ACAMERA_HOT_PIXEL_START,
+ /**
+ * <p>List of hot pixel correction modes for ACAMERA_HOT_PIXEL_MODE that are supported by this
+ * camera device.</p>
+ *
+ * @see ACAMERA_HOT_PIXEL_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>FULL mode camera devices will always support FAST.</p>
+ */
+ ACAMERA_HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES = // byte[n]
+ ACAMERA_HOT_PIXEL_START + 1,
+ ACAMERA_HOT_PIXEL_END,
+
+ /**
+ * <p>GPS coordinates to include in output JPEG
+ * EXIF.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_JPEG_GPS_COORDINATES = // double[3]
+ ACAMERA_JPEG_START,
+ /**
+ * <p>32 characters describing GPS algorithm to
+ * include in EXIF.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_JPEG_GPS_PROCESSING_METHOD = // byte
+ ACAMERA_JPEG_START + 1,
+ /**
+ * <p>Time GPS fix was made to include in
+ * EXIF.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_JPEG_GPS_TIMESTAMP = // int64
+ ACAMERA_JPEG_START + 2,
+ /**
+ * <p>The orientation for a JPEG image.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>The clockwise rotation angle in degrees, relative to the orientation
+ * to the camera, that the JPEG picture needs to be rotated by, to be viewed
+ * upright.</p>
+ * <p>Camera devices may either encode this value into the JPEG EXIF header, or
+ * rotate the image data to match this orientation. When the image data is rotated,
+ * the thumbnail data will also be rotated.</p>
+ * <p>Note that this orientation is relative to the orientation of the camera sensor, given
+ * by ACAMERA_SENSOR_ORIENTATION.</p>
+ * <p>To translate from the device orientation given by the Android sensor APIs, the following
+ * sample code may be used:</p>
+ * <pre><code>private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
+ * if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0;
+ * int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);
+ *
+ * // Round device orientation to a multiple of 90
+ * deviceOrientation = (deviceOrientation + 45) / 90 * 90;
+ *
+ * // Reverse device orientation for front-facing cameras
+ * boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;
+ * if (facingFront) deviceOrientation = -deviceOrientation;
+ *
+ * // Calculate desired JPEG orientation relative to camera orientation to make
+ * // the image upright relative to the device orientation
+ * int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360;
+ *
+ * return jpegOrientation;
+ * }
+ * </code></pre>
+ *
+ * @see ACAMERA_SENSOR_ORIENTATION
+ */
+ ACAMERA_JPEG_ORIENTATION = // int32
+ ACAMERA_JPEG_START + 3,
+ /**
+ * <p>Compression quality of the final JPEG
+ * image.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>85-95 is typical usage range.</p>
+ */
+ ACAMERA_JPEG_QUALITY = // byte
+ ACAMERA_JPEG_START + 4,
+ /**
+ * <p>Compression quality of JPEG
+ * thumbnail.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_JPEG_THUMBNAIL_QUALITY = // byte
+ ACAMERA_JPEG_START + 5,
+ /**
+ * <p>Resolution of embedded JPEG thumbnail.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail,
+ * but the captured JPEG will still be a valid image.</p>
+ * <p>For best results, when issuing a request for a JPEG image, the thumbnail size selected
+ * should have the same aspect ratio as the main JPEG output.</p>
+ * <p>If the thumbnail image aspect ratio differs from the JPEG primary image aspect
+ * ratio, the camera device creates the thumbnail by cropping it from the primary image.
+ * For example, if the primary image has 4:3 aspect ratio, the thumbnail image has
+ * 16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to
+ * generate the thumbnail image. The thumbnail image will always have a smaller Field
+ * Of View (FOV) than the primary image when aspect ratios differ.</p>
+ * <p>When an ACAMERA_JPEG_ORIENTATION of non-zero degree is requested,
+ * the camera device will handle thumbnail rotation in one of the following ways:</p>
+ * <ul>
+ * <li>Set the
+ * <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>
+ * and keep jpeg and thumbnail image data unrotated.</li>
+ * <li>Rotate the jpeg and thumbnail image data and not set
+ * <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>.
+ * In this case, LIMITED or FULL hardware level devices will report rotated thumnail size
+ * in capture result, so the width and height will be interchanged if 90 or 270 degree
+ * orientation is requested. LEGACY device will always report unrotated thumbnail size.</li>
+ * </ul>
+ *
+ * @see ACAMERA_JPEG_ORIENTATION
+ */
+ ACAMERA_JPEG_THUMBNAIL_SIZE = // int32[2]
+ ACAMERA_JPEG_START + 6,
+ /**
+ * <p>List of JPEG thumbnail sizes for ACAMERA_JPEG_THUMBNAIL_SIZE supported by this
+ * camera device.</p>
+ *
+ * @see ACAMERA_JPEG_THUMBNAIL_SIZE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This list will include at least one non-zero resolution, plus <code>(0,0)</code> for indicating no
+ * thumbnail should be generated.</p>
+ * <p>Below condiditions will be satisfied for this size list:</p>
+ * <ul>
+ * <li>The sizes will be sorted by increasing pixel area (width x height).
+ * If several resolutions have the same area, they will be sorted by increasing width.</li>
+ * <li>The aspect ratio of the largest thumbnail size will be same as the
+ * aspect ratio of largest JPEG output size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
+ * The largest size is defined as the size that has the largest pixel area
+ * in a given size list.</li>
+ * <li>Each output JPEG size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS will have at least
+ * one corresponding size that has the same aspect ratio in availableThumbnailSizes,
+ * and vice versa.</li>
+ * <li>All non-<code>(0, 0)</code> sizes will have non-zero widths and heights.</li>
+ * </ul>
+ *
+ * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+ */
+ ACAMERA_JPEG_AVAILABLE_THUMBNAIL_SIZES = // int32[2*n]
+ ACAMERA_JPEG_START + 7,
+ ACAMERA_JPEG_END,
+
+ /**
+ * <p>The desired lens aperture size, as a ratio of lens focal length to the
+ * effective aperture diameter.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Setting this value is only supported on the camera devices that have a variable
+ * aperture lens.</p>
+ * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is OFF,
+ * this can be set along with ACAMERA_SENSOR_EXPOSURE_TIME,
+ * ACAMERA_SENSOR_SENSITIVITY, and ACAMERA_SENSOR_FRAME_DURATION
+ * to achieve manual exposure control.</p>
+ * <p>The requested aperture value may take several frames to reach the
+ * requested value; the camera device will report the current (intermediate)
+ * aperture size in capture result metadata while the aperture is changing.
+ * While the aperture is still changing, ACAMERA_LENS_STATE will be set to MOVING.</p>
+ * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is one of
+ * the ON modes, this will be overridden by the camera device
+ * auto-exposure algorithm, the overridden values are then provided
+ * back to the user in the corresponding result.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_LENS_STATE
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_LENS_APERTURE = // float
+ ACAMERA_LENS_START,
+ /**
+ * <p>The desired setting for the lens neutral density filter(s).</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This control will not be supported on most camera devices.</p>
+ * <p>Lens filters are typically used to lower the amount of light the
+ * sensor is exposed to (measured in steps of EV). As used here, an EV
+ * step is the standard logarithmic representation, which are
+ * non-negative, and inversely proportional to the amount of light
+ * hitting the sensor. For example, setting this to 0 would result
+ * in no reduction of the incoming light, and setting this to 2 would
+ * mean that the filter is set to reduce incoming light by two stops
+ * (allowing 1/4 of the prior amount of light to the sensor).</p>
+ * <p>It may take several frames before the lens filter density changes
+ * to the requested value. While the filter density is still changing,
+ * ACAMERA_LENS_STATE will be set to MOVING.</p>
+ *
+ * @see ACAMERA_LENS_STATE
+ */
+ ACAMERA_LENS_FILTER_DENSITY = // float
+ ACAMERA_LENS_START + 1,
+ /**
+ * <p>The desired lens focal length; used for optical zoom.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This setting controls the physical focal length of the camera
+ * device's lens. Changing the focal length changes the field of
+ * view of the camera device, and is usually used for optical zoom.</p>
+ * <p>Like ACAMERA_LENS_FOCUS_DISTANCE and ACAMERA_LENS_APERTURE, this
+ * setting won't be applied instantaneously, and it may take several
+ * frames before the lens can change to the requested focal length.
+ * While the focal length is still changing, ACAMERA_LENS_STATE will
+ * be set to MOVING.</p>
+ * <p>Optical zoom will not be supported on most devices.</p>
+ *
+ * @see ACAMERA_LENS_APERTURE
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ * @see ACAMERA_LENS_STATE
+ */
+ ACAMERA_LENS_FOCAL_LENGTH = // float
+ ACAMERA_LENS_START + 2,
+ /**
+ * <p>Desired distance to plane of sharpest focus,
+ * measured from frontmost surface of the lens.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Should be zero for fixed-focus cameras</p>
+ */
+ ACAMERA_LENS_FOCUS_DISTANCE = // float
+ ACAMERA_LENS_START + 3,
+ /**
+ * <p>Sets whether the camera device uses optical image stabilization (OIS)
+ * when capturing images.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>OIS is used to compensate for motion blur due to small
+ * movements of the camera during capture. Unlike digital image
+ * stabilization (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), OIS
+ * makes use of mechanical elements to stabilize the camera
+ * sensor, and thus allows for longer exposure times before
+ * camera shake becomes apparent.</p>
+ * <p>Switching between different optical stabilization modes may take several
+ * frames to initialize, the camera device will report the current mode in
+ * capture result metadata. For example, When "ON" mode is requested, the
+ * optical stabilization modes in the first several capture results may still
+ * be "OFF", and it will become "ON" when the initialization is done.</p>
+ * <p>If a camera device supports both OIS and digital image stabilization
+ * (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), turning both modes on may produce undesirable
+ * interaction, so it is recommended not to enable both at the same time.</p>
+ * <p>Not all devices will support OIS; see
+ * ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION for
+ * available controls.</p>
+ *
+ * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+ * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
+ */
+ ACAMERA_LENS_OPTICAL_STABILIZATION_MODE = // byte (enum)
+ ACAMERA_LENS_START + 4,
+ /**
+ * <p>Direction the camera faces relative to
+ * device screen.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_LENS_FACING = // byte (enum)
+ ACAMERA_LENS_START + 5,
+ /**
+ * <p>The orientation of the camera relative to the sensor
+ * coordinate system.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>The four coefficients that describe the quaternion
+ * rotation from the Android sensor coordinate system to a
+ * camera-aligned coordinate system where the X-axis is
+ * aligned with the long side of the image sensor, the Y-axis
+ * is aligned with the short side of the image sensor, and
+ * the Z-axis is aligned with the optical axis of the sensor.</p>
+ * <p>To convert from the quaternion coefficients <code>(x,y,z,w)</code>
+ * to the axis of rotation <code>(a_x, a_y, a_z)</code> and rotation
+ * amount <code>theta</code>, the following formulas can be used:</p>
+ * <pre><code> theta = 2 * acos(w)
+ * a_x = x / sin(theta/2)
+ * a_y = y / sin(theta/2)
+ * a_z = z / sin(theta/2)
+ * </code></pre>
+ * <p>To create a 3x3 rotation matrix that applies the rotation
+ * defined by this quaternion, the following matrix can be
+ * used:</p>
+ * <pre><code>R = [ 1 - 2y^2 - 2z^2, 2xy - 2zw, 2xz + 2yw,
+ * 2xy + 2zw, 1 - 2x^2 - 2z^2, 2yz - 2xw,
+ * 2xz - 2yw, 2yz + 2xw, 1 - 2x^2 - 2y^2 ]
+ * </code></pre>
+ * <p>This matrix can then be used to apply the rotation to a
+ * column vector point with</p>
+ * <p><code>p' = Rp</code></p>
+ * <p>where <code>p</code> is in the device sensor coordinate system, and
+ * <code>p'</code> is in the camera-oriented coordinate system.</p>
+ */
+ ACAMERA_LENS_POSE_ROTATION = // float[4]
+ ACAMERA_LENS_START + 6,
+ /**
+ * <p>Position of the camera optical center.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>The position of the camera device's lens optical center,
+ * as a three-dimensional vector <code>(x,y,z)</code>, relative to the
+ * optical center of the largest camera device facing in the
+ * same direction as this camera, in the
+ * <a href="https://developer.android.com/reference/android/hardware/SensorEvent.html">Android sensor coordinate axes</a>.
+ * Note that only the axis definitions are shared with
+ * the sensor coordinate system, but not the origin.</p>
+ * <p>If this device is the largest or only camera device with a
+ * given facing, then this position will be <code>(0, 0, 0)</code>; a
+ * camera device with a lens optical center located 3 cm from
+ * the main sensor along the +X axis (to the right from the
+ * user's perspective) will report <code>(0.03, 0, 0)</code>.</p>
+ * <p>To transform a pixel coordinates between two cameras
+ * facing the same direction, first the source camera
+ * ACAMERA_LENS_RADIAL_DISTORTION must be corrected for. Then
+ * the source camera ACAMERA_LENS_INTRINSIC_CALIBRATION needs
+ * to be applied, followed by the ACAMERA_LENS_POSE_ROTATION
+ * of the source camera, the translation of the source camera
+ * relative to the destination camera, the
+ * ACAMERA_LENS_POSE_ROTATION of the destination camera, and
+ * finally the inverse of ACAMERA_LENS_INTRINSIC_CALIBRATION
+ * of the destination camera. This obtains a
+ * radial-distortion-free coordinate in the destination
+ * camera pixel coordinates.</p>
+ * <p>To compare this against a real image from the destination
+ * camera, the destination camera image then needs to be
+ * corrected for radial distortion before comparison or
+ * sampling.</p>
+ *
+ * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+ * @see ACAMERA_LENS_POSE_ROTATION
+ * @see ACAMERA_LENS_RADIAL_DISTORTION
+ */
+ ACAMERA_LENS_POSE_TRANSLATION = // float[3]
+ ACAMERA_LENS_START + 7,
+ /**
+ * <p>The range of scene distances that are in
+ * sharp focus (depth of field).</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>If variable focus not supported, can still report
+ * fixed depth of field range</p>
+ */
+ ACAMERA_LENS_FOCUS_RANGE = // float[2]
+ ACAMERA_LENS_START + 8,
+ /**
+ * <p>Current lens status.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>For lens parameters ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+ * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE, when changes are requested,
+ * they may take several frames to reach the requested values. This state indicates
+ * the current status of the lens parameters.</p>
+ * <p>When the state is STATIONARY, the lens parameters are not changing. This could be
+ * either because the parameters are all fixed, or because the lens has had enough
+ * time to reach the most recently-requested values.
+ * If all these lens parameters are not changable for a camera device, as listed below:</p>
+ * <ul>
+ * <li>Fixed focus (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE == 0</code>), which means
+ * ACAMERA_LENS_FOCUS_DISTANCE parameter will always be 0.</li>
+ * <li>Fixed focal length (ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS contains single value),
+ * which means the optical zoom is not supported.</li>
+ * <li>No ND filter (ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES contains only 0).</li>
+ * <li>Fixed aperture (ACAMERA_LENS_INFO_AVAILABLE_APERTURES contains single value).</li>
+ * </ul>
+ * <p>Then this state will always be STATIONARY.</p>
+ * <p>When the state is MOVING, it indicates that at least one of the lens parameters
+ * is changing.</p>
+ *
+ * @see ACAMERA_LENS_APERTURE
+ * @see ACAMERA_LENS_FILTER_DENSITY
+ * @see ACAMERA_LENS_FOCAL_LENGTH
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ * @see ACAMERA_LENS_INFO_AVAILABLE_APERTURES
+ * @see ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES
+ * @see ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS
+ * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+ */
+ ACAMERA_LENS_STATE = // byte (enum)
+ ACAMERA_LENS_START + 9,
+ /**
+ * <p>The parameters for this camera device's intrinsic
+ * calibration.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>The five calibration parameters that describe the
+ * transform from camera-centric 3D coordinates to sensor
+ * pixel coordinates:</p>
+ * <pre><code>[f_x, f_y, c_x, c_y, s]
+ * </code></pre>
+ * <p>Where <code>f_x</code> and <code>f_y</code> are the horizontal and vertical
+ * focal lengths, <code>[c_x, c_y]</code> is the position of the optical
+ * axis, and <code>s</code> is a skew parameter for the sensor plane not
+ * being aligned with the lens plane.</p>
+ * <p>These are typically used within a transformation matrix K:</p>
+ * <pre><code>K = [ f_x, s, c_x,
+ * 0, f_y, c_y,
+ * 0 0, 1 ]
+ * </code></pre>
+ * <p>which can then be combined with the camera pose rotation
+ * <code>R</code> and translation <code>t</code> (ACAMERA_LENS_POSE_ROTATION and
+ * ACAMERA_LENS_POSE_TRANSLATION, respective) to calculate the
+ * complete transform from world coordinates to pixel
+ * coordinates:</p>
+ * <pre><code>P = [ K 0 * [ R t
+ * 0 1 ] 0 1 ]
+ * </code></pre>
+ * <p>and with <code>p_w</code> being a point in the world coordinate system
+ * and <code>p_s</code> being a point in the camera active pixel array
+ * coordinate system, and with the mapping including the
+ * homogeneous division by z:</p>
+ * <pre><code> p_h = (x_h, y_h, z_h) = P p_w
+ * p_s = p_h / z_h
+ * </code></pre>
+ * <p>so <code>[x_s, y_s]</code> is the pixel coordinates of the world
+ * point, <code>z_s = 1</code>, and <code>w_s</code> is a measurement of disparity
+ * (depth) in pixel coordinates.</p>
+ * <p>Note that the coordinate system for this transform is the
+ * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE system,
+ * where <code>(0,0)</code> is the top-left of the
+ * preCorrectionActiveArraySize rectangle. Once the pose and
+ * intrinsic calibration transforms have been applied to a
+ * world point, then the ACAMERA_LENS_RADIAL_DISTORTION
+ * transform needs to be applied, and the result adjusted to
+ * be in the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE coordinate
+ * system (where <code>(0, 0)</code> is the top-left of the
+ * activeArraySize rectangle), to determine the final pixel
+ * coordinate of the world point for processed (non-RAW)
+ * output buffers.</p>
+ *
+ * @see ACAMERA_LENS_POSE_ROTATION
+ * @see ACAMERA_LENS_POSE_TRANSLATION
+ * @see ACAMERA_LENS_RADIAL_DISTORTION
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_LENS_INTRINSIC_CALIBRATION = // float[5]
+ ACAMERA_LENS_START + 10,
+ /**
+ * <p>The correction coefficients to correct for this camera device's
+ * radial and tangential lens distortion.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Four radial distortion coefficients <code>[kappa_0, kappa_1, kappa_2,
+ * kappa_3]</code> and two tangential distortion coefficients
+ * <code>[kappa_4, kappa_5]</code> that can be used to correct the
+ * lens's geometric distortion with the mapping equations:</p>
+ * <pre><code> x_c = x_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
+ * kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 )
+ * y_c = y_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
+ * kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 )
+ * </code></pre>
+ * <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the
+ * input image that correspond to the pixel values in the
+ * corrected image at the coordinate <code>[x_i, y_i]</code>:</p>
+ * <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage)
+ * </code></pre>
+ * <p>The pixel coordinates are defined in a normalized
+ * coordinate system related to the
+ * ACAMERA_LENS_INTRINSIC_CALIBRATION calibration fields.
+ * Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the
+ * lens optical center <code>[c_x, c_y]</code>. The maximum magnitudes
+ * of both x and y coordinates are normalized to be 1 at the
+ * edge further from the optical center, so the range
+ * for both dimensions is <code>-1 <= x <= 1</code>.</p>
+ * <p>Finally, <code>r</code> represents the radial distance from the
+ * optical center, <code>r^2 = x_i^2 + y_i^2</code>, and its magnitude
+ * is therefore no larger than <code>|r| <= sqrt(2)</code>.</p>
+ * <p>The distortion model used is the Brown-Conrady model.</p>
+ *
+ * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+ */
+ ACAMERA_LENS_RADIAL_DISTORTION = // float[6]
+ ACAMERA_LENS_START + 11,
+ ACAMERA_LENS_END,
+
+ /**
+ * <p>List of aperture size values for ACAMERA_LENS_APERTURE that are
+ * supported by this camera device.</p>
+ *
+ * @see ACAMERA_LENS_APERTURE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If the camera device doesn't support a variable lens aperture,
+ * this list will contain only one value, which is the fixed aperture size.</p>
+ * <p>If the camera device supports a variable aperture, the aperture values
+ * in this list will be sorted in ascending order.</p>
+ */
+ ACAMERA_LENS_INFO_AVAILABLE_APERTURES = // float[n]
+ ACAMERA_LENS_INFO_START,
+ /**
+ * <p>List of neutral density filter values for
+ * ACAMERA_LENS_FILTER_DENSITY that are supported by this camera device.</p>
+ *
+ * @see ACAMERA_LENS_FILTER_DENSITY
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If a neutral density filter is not supported by this camera device,
+ * this list will contain only 0. Otherwise, this list will include every
+ * filter density supported by the camera device, in ascending order.</p>
+ */
+ ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES = // float[n]
+ ACAMERA_LENS_INFO_START + 1,
+ /**
+ * <p>List of focal lengths for ACAMERA_LENS_FOCAL_LENGTH that are supported by this camera
+ * device.</p>
+ *
+ * @see ACAMERA_LENS_FOCAL_LENGTH
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If optical zoom is not supported, this list will only contain
+ * a single value corresponding to the fixed focal length of the
+ * device. Otherwise, this list will include every focal length supported
+ * by the camera device, in ascending order.</p>
+ */
+ ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS = // float[n]
+ ACAMERA_LENS_INFO_START + 2,
+ /**
+ * <p>List of optical image stabilization (OIS) modes for
+ * ACAMERA_LENS_OPTICAL_STABILIZATION_MODE that are supported by this camera device.</p>
+ *
+ * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If OIS is not supported by a given camera device, this list will
+ * contain only OFF.</p>
+ */
+ ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION = // byte[n]
+ ACAMERA_LENS_INFO_START + 3,
+ /**
+ * <p>Hyperfocal distance for this lens.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If the lens is not fixed focus, the camera device will report this
+ * field when ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION is APPROXIMATE or CALIBRATED.</p>
+ *
+ * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+ */
+ ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE = // float
+ ACAMERA_LENS_INFO_START + 4,
+ /**
+ * <p>Shortest distance from frontmost surface
+ * of the lens that can be brought into sharp focus.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If the lens is fixed-focus, this will be
+ * 0.</p>
+ */
+ ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE = // float
+ ACAMERA_LENS_INFO_START + 5,
+ /**
+ * <p>Dimensions of lens shading map.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The map should be on the order of 30-40 rows and columns, and
+ * must be smaller than 64x64.</p>
+ */
+ ACAMERA_LENS_INFO_SHADING_MAP_SIZE = // int32[2]
+ ACAMERA_LENS_INFO_START + 6,
+ /**
+ * <p>The lens focus distance calibration quality.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The lens focus distance calibration quality determines the reliability of
+ * focus related metadata entries, i.e. ACAMERA_LENS_FOCUS_DISTANCE,
+ * ACAMERA_LENS_FOCUS_RANGE, ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE, and
+ * ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE.</p>
+ * <p>APPROXIMATE and CALIBRATED devices report the focus metadata in
+ * units of diopters (1/meter), so <code>0.0f</code> represents focusing at infinity,
+ * and increasing positive numbers represent focusing closer and closer
+ * to the camera device. The focus distance control also uses diopters
+ * on these devices.</p>
+ * <p>UNCALIBRATED devices do not use units that are directly comparable
+ * to any real physical measurement, but <code>0.0f</code> still represents farthest
+ * focus, and ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE represents the
+ * nearest focus the device can achieve.</p>
+ *
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ * @see ACAMERA_LENS_FOCUS_RANGE
+ * @see ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE
+ * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+ */
+ ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION = // byte (enum)
+ ACAMERA_LENS_INFO_START + 7,
+ ACAMERA_LENS_INFO_END,
+
+ /**
+ * <p>Mode of operation for the noise reduction algorithm.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>The noise reduction algorithm attempts to improve image quality by removing
+ * excessive noise added by the capture process, especially in dark conditions.</p>
+ * <p>OFF means no noise reduction will be applied by the camera device, for both raw and
+ * YUV domain.</p>
+ * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove
+ * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF.
+ * This mode is optional, may not be support by all devices. The application should check
+ * ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES before using it.</p>
+ * <p>FAST/HIGH_QUALITY both mean camera device determined noise filtering
+ * will be applied. HIGH_QUALITY mode indicates that the camera device
+ * will use the highest-quality noise filtering algorithms,
+ * even if it slows down capture rate. FAST means the camera device will not
+ * slow down capture rate when applying noise filtering. FAST may be the same as MINIMAL if
+ * MINIMAL is listed, or the same as OFF if any noise filtering will slow down capture rate.
+ * Every output stream will have a similar amount of enhancement applied.</p>
+ * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
+ * buffer of high-resolution images during preview and reprocess image(s) from that buffer
+ * into a final capture when triggered by the user. In this mode, the camera device applies
+ * noise reduction to low-resolution streams (below maximum recording resolution) to maximize
+ * preview quality, but does not apply noise reduction to high-resolution streams, since
+ * those will be reprocessed later if necessary.</p>
+ * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device
+ * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device
+ * may adjust the noise reduction parameters for best image quality based on the
+ * android.reprocess.effectiveExposureFactor if it is set.</p>
+ *
+ * @see ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
+ */
+ ACAMERA_NOISE_REDUCTION_MODE = // byte (enum)
+ ACAMERA_NOISE_REDUCTION_START,
+ /**
+ * <p>List of noise reduction modes for ACAMERA_NOISE_REDUCTION_MODE that are supported
+ * by this camera device.</p>
+ *
+ * @see ACAMERA_NOISE_REDUCTION_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Full-capability camera devices will always support OFF and FAST.</p>
+ * <p>Camera devices that support YUV_REPROCESSING or PRIVATE_REPROCESSING will support
+ * ZERO_SHUTTER_LAG.</p>
+ * <p>Legacy-capability camera devices will only support FAST mode.</p>
+ */
+ ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES = // byte[n]
+ ACAMERA_NOISE_REDUCTION_START + 2,
+ ACAMERA_NOISE_REDUCTION_END,
+
+ /**
+ * <p>The maximum numbers of different types of output streams
+ * that can be configured and used simultaneously by a camera device.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This is a 3 element tuple that contains the max number of output simultaneous
+ * streams for raw sensor, processed (but not stalling), and processed (and stalling)
+ * formats respectively. For example, assuming that JPEG is typically a processed and
+ * stalling stream, if max raw sensor format output stream number is 1, max YUV streams
+ * number is 3, and max JPEG stream number is 2, then this tuple should be <code>(1, 3, 2)</code>.</p>
+ * <p>This lists the upper bound of the number of output streams supported by
+ * the camera device. Using more streams simultaneously may require more hardware and
+ * CPU resources that will consume more power. The image format for an output stream can
+ * be any supported format provided by ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
+ * The formats defined in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS can be catergorized
+ * into the 3 stream types as below:</p>
+ * <ul>
+ * <li>Processed (but stalling): any non-RAW format with a stallDurations > 0.
+ * Typically {@link AIMAGE_FORMAT_JPEG} format.</li>
+ * <li>Raw formats: {@link AIMAGE_FORMAT_RAW16}, {@link AIMAGE_FORMAT_RAW10}, or
+ * {@link AIMAGE_FORMAT_RAW12}.</li>
+ * <li>Processed (but not-stalling): any non-RAW format without a stall duration.
+ * Typically {@link AIMAGE_FORMAT_YUV_420_888}.</li>
+ * </ul>
+ *
+ * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+ */
+ ACAMERA_REQUEST_MAX_NUM_OUTPUT_STREAMS = // int32[3]
+ ACAMERA_REQUEST_START + 6,
+ /**
+ * <p>Specifies the number of pipeline stages the frame went
+ * through from when it was exposed to when the final completed result
+ * was available to the framework.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Depending on what settings are used in the request, and
+ * what streams are configured, the data may undergo less processing,
+ * and some pipeline stages skipped.</p>
+ * <p>See ACAMERA_REQUEST_PIPELINE_MAX_DEPTH for more details.</p>
+ *
+ * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
+ */
+ ACAMERA_REQUEST_PIPELINE_DEPTH = // byte
+ ACAMERA_REQUEST_START + 9,
+ /**
+ * <p>Specifies the number of maximum pipeline stages a frame
+ * has to go through from when it's exposed to when it's available
+ * to the framework.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>A typical minimum value for this is 2 (one stage to expose,
+ * one stage to readout) from the sensor. The ISP then usually adds
+ * its own stages to do custom HW processing. Further stages may be
+ * added by SW processing.</p>
+ * <p>Depending on what settings are used (e.g. YUV, JPEG) and what
+ * processing is enabled (e.g. face detection), the actual pipeline
+ * depth (specified by ACAMERA_REQUEST_PIPELINE_DEPTH) may be less than
+ * the max pipeline depth.</p>
+ * <p>A pipeline depth of X stages is equivalent to a pipeline latency of
+ * X frame intervals.</p>
+ * <p>This value will normally be 8 or less, however, for high speed capture session,
+ * the max pipeline depth will be up to 8 x size of high speed capture request list.</p>
+ *
+ * @see ACAMERA_REQUEST_PIPELINE_DEPTH
+ */
+ ACAMERA_REQUEST_PIPELINE_MAX_DEPTH = // byte
+ ACAMERA_REQUEST_START + 10,
+ /**
+ * <p>Defines how many sub-components
+ * a result will be composed of.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>In order to combat the pipeline latency, partial results
+ * may be delivered to the application layer from the camera device as
+ * soon as they are available.</p>
+ * <p>Optional; defaults to 1. A value of 1 means that partial
+ * results are not supported, and only the final TotalCaptureResult will
+ * be produced by the camera device.</p>
+ * <p>A typical use case for this might be: after requesting an
+ * auto-focus (AF) lock the new AF state might be available 50%
+ * of the way through the pipeline. The camera device could
+ * then immediately dispatch this state via a partial result to
+ * the application, and the rest of the metadata via later
+ * partial results.</p>
+ */
+ ACAMERA_REQUEST_PARTIAL_RESULT_COUNT = // int32
+ ACAMERA_REQUEST_START + 11,
+ /**
+ * <p>List of capabilities that this camera device
+ * advertises as fully supporting.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>A capability is a contract that the camera device makes in order
+ * to be able to satisfy one or more use cases.</p>
+ * <p>Listing a capability guarantees that the whole set of features
+ * required to support a common use will all be available.</p>
+ * <p>Using a subset of the functionality provided by an unsupported
+ * capability may be possible on a specific camera device implementation;
+ * to do this query each of ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS,
+ * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS,
+ * ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS.</p>
+ * <p>The following capabilities are guaranteed to be available on
+ * ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL <code>==</code> FULL devices:</p>
+ * <ul>
+ * <li>MANUAL_SENSOR</li>
+ * <li>MANUAL_POST_PROCESSING</li>
+ * </ul>
+ * <p>Other capabilities may be available on either FULL or LIMITED
+ * devices, but the application should query this key to be sure.</p>
+ *
+ * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+ * @see ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS
+ * @see ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS
+ * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
+ */
+ ACAMERA_REQUEST_AVAILABLE_CAPABILITIES = // byte[n] (enum)
+ ACAMERA_REQUEST_START + 12,
+ /**
+ * <p>A list of all keys that the camera device has available
+ * to use with {@link ACaptureRequest}.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Attempting to set a key into a CaptureRequest that is not
+ * listed here will result in an invalid request and will be rejected
+ * by the camera device.</p>
+ * <p>This field can be used to query the feature set of a camera device
+ * at a more granular level than capabilities. This is especially
+ * important for optional keys that are not listed under any capability
+ * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+ *
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ */
+ ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS = // int32[n]
+ ACAMERA_REQUEST_START + 13,
+ /**
+ * <p>A list of all keys that the camera device has available
+ * to query with {@link ACameraMetadata} from
+ * {@link ACameraCaptureSession_captureCallback_result}.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Attempting to get a key from a CaptureResult that is not
+ * listed here will always return a <code>null</code> value. Getting a key from
+ * a CaptureResult that is listed here will generally never return a <code>null</code>
+ * value.</p>
+ * <p>The following keys may return <code>null</code> unless they are enabled:</p>
+ * <ul>
+ * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP (non-null iff ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON)</li>
+ * </ul>
+ * <p>(Those sometimes-null keys will nevertheless be listed here
+ * if they are available.)</p>
+ * <p>This field can be used to query the feature set of a camera device
+ * at a more granular level than capabilities. This is especially
+ * important for optional keys that are not listed under any capability
+ * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+ *
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+ * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+ */
+ ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS = // int32[n]
+ ACAMERA_REQUEST_START + 14,
+ /**
+ * <p>A list of all keys that the camera device has available
+ * to query with {@link ACameraMetadata} from
+ * {@link ACameraManager_getCameraCharacteristics}.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This entry follows the same rules as
+ * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS (except that it applies for
+ * CameraCharacteristics instead of CaptureResult). See above for more
+ * details.</p>
+ *
+ * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
+ */
+ ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS = // int32[n]
+ ACAMERA_REQUEST_START + 15,
+ ACAMERA_REQUEST_END,
+
+ /**
+ * <p>The desired region of the sensor to read out for this capture.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>This control can be used to implement digital zoom.</p>
+ * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+ * <p>The crop region coordinate system is based off
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with <code>(0, 0)</code> being the
+ * top-left corner of the sensor active array.</p>
+ * <p>Output streams use this rectangle to produce their output,
+ * cropping to a smaller region if necessary to maintain the
+ * stream's aspect ratio, then scaling the sensor input to
+ * match the output's configured resolution.</p>
+ * <p>The crop region is applied after the RAW to other color
+ * space (e.g. YUV) conversion. Since raw streams
+ * (e.g. RAW16) don't have the conversion stage, they are not
+ * croppable. The crop region will be ignored by raw streams.</p>
+ * <p>For non-raw streams, any additional per-stream cropping will
+ * be done to maximize the final pixel area of the stream.</p>
+ * <p>For example, if the crop region is set to a 4:3 aspect
+ * ratio, then 4:3 streams will use the exact crop
+ * region. 16:9 streams will further crop vertically
+ * (letterbox).</p>
+ * <p>Conversely, if the crop region is set to a 16:9, then 4:3
+ * outputs will crop horizontally (pillarbox), and 16:9
+ * streams will match exactly. These additional crops will
+ * be centered within the crop region.</p>
+ * <p>The width and height of the crop region cannot
+ * be set to be smaller than
+ * <code>floor( activeArraySize.width / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code> and
+ * <code>floor( activeArraySize.height / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code>, respectively.</p>
+ * <p>The camera device may adjust the crop region to account
+ * for rounding and other hardware requirements; the final
+ * crop region used will be included in the output capture
+ * result.</p>
+ *
+ * @see ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_SCALER_CROP_REGION = // int32[4]
+ ACAMERA_SCALER_START,
+ /**
+ * <p>The maximum ratio between both active area width
+ * and crop region width, and active area height and
+ * crop region height, for ACAMERA_SCALER_CROP_REGION.</p>
+ *
+ * @see ACAMERA_SCALER_CROP_REGION
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This represents the maximum amount of zooming possible by
+ * the camera device, or equivalently, the minimum cropping
+ * window size.</p>
+ * <p>Crop regions that have a width or height that is smaller
+ * than this ratio allows will be rounded up to the minimum
+ * allowed size by the camera device.</p>
+ */
+ ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM = // float
+ ACAMERA_SCALER_START + 4,
+ /**
+ * <p>The available stream configurations that this
+ * camera device supports
+ * (i.e. format, width, height, output/input stream).</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The configurations are listed as <code>(format, width, height, input?)</code>
+ * tuples.</p>
+ * <p>For a given use case, the actual maximum supported resolution
+ * may be lower than what is listed here, depending on the destination
+ * Surface for the image data. For example, for recording video,
+ * the video encoder chosen may have a maximum size limit (e.g. 1080p)
+ * smaller than what the camera (e.g. maximum resolution is 3264x2448)
+ * can provide.</p>
+ * <p>Please reference the documentation for the image data destination to
+ * check if it limits the maximum size for image data.</p>
+ * <p>Not all output formats may be supported in a configuration with
+ * an input stream of a particular format. For more details, see
+ * android.scaler.availableInputOutputFormatsMap.</p>
+ * <p>The following table describes the minimum required output stream
+ * configurations based on the hardware level
+ * (ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL):</p>
+ * <p>Format | Size | Hardware Level | Notes
+ * :-------------:|:--------------------------------------------:|:--------------:|:--------------:
+ * JPEG | ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE | Any |
+ * JPEG | 1920x1080 (1080p) | Any | if 1080p <= activeArraySize
+ * JPEG | 1280x720 (720) | Any | if 720p <= activeArraySize
+ * JPEG | 640x480 (480p) | Any | if 480p <= activeArraySize
+ * JPEG | 320x240 (240p) | Any | if 240p <= activeArraySize
+ * YUV_420_888 | all output sizes available for JPEG | FULL |
+ * YUV_420_888 | all output sizes available for JPEG, up to the maximum video size | LIMITED |
+ * IMPLEMENTATION_DEFINED | same as YUV_420_888 | Any |</p>
+ * <p>Refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES for additional
+ * mandatory stream configurations on a per-capability basis.</p>
+ *
+ * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS = // int32[n*4] (enum)
+ ACAMERA_SCALER_START + 10,
+ /**
+ * <p>This lists the minimum frame duration for each
+ * format/size combination.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This should correspond to the frame duration when only that
+ * stream is active, with all processing (typically in android.*.mode)
+ * set to either OFF or FAST.</p>
+ * <p>When multiple streams are used in a request, the minimum frame
+ * duration will be max(individual stream min durations).</p>
+ * <p>The minimum frame duration of a stream (of a particular format, size)
+ * is the same regardless of whether the stream is input or output.</p>
+ * <p>See ACAMERA_SENSOR_FRAME_DURATION and
+ * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
+ * calculating the max frame rate.</p>
+ *
+ * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ */
+ ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS = // int64[4*n]
+ ACAMERA_SCALER_START + 11,
+ /**
+ * <p>This lists the maximum stall duration for each
+ * output format/size combination.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>A stall duration is how much extra time would get added
+ * to the normal minimum frame duration for a repeating request
+ * that has streams with non-zero stall.</p>
+ * <p>For example, consider JPEG captures which have the following
+ * characteristics:</p>
+ * <ul>
+ * <li>JPEG streams act like processed YUV streams in requests for which
+ * they are not included; in requests in which they are directly
+ * referenced, they act as JPEG streams. This is because supporting a
+ * JPEG stream requires the underlying YUV data to always be ready for
+ * use by a JPEG encoder, but the encoder will only be used (and impact
+ * frame duration) on requests that actually reference a JPEG stream.</li>
+ * <li>The JPEG processor can run concurrently to the rest of the camera
+ * pipeline, but cannot process more than 1 capture at a time.</li>
+ * </ul>
+ * <p>In other words, using a repeating YUV request would result
+ * in a steady frame rate (let's say it's 30 FPS). If a single
+ * JPEG request is submitted periodically, the frame rate will stay
+ * at 30 FPS (as long as we wait for the previous JPEG to return each
+ * time). If we try to submit a repeating YUV + JPEG request, then
+ * the frame rate will drop from 30 FPS.</p>
+ * <p>In general, submitting a new request with a non-0 stall time
+ * stream will <em>not</em> cause a frame rate drop unless there are still
+ * outstanding buffers for that stream from previous requests.</p>
+ * <p>Submitting a repeating request with streams (call this <code>S</code>)
+ * is the same as setting the minimum frame duration from
+ * the normal minimum frame duration corresponding to <code>S</code>, added with
+ * the maximum stall duration for <code>S</code>.</p>
+ * <p>If interleaving requests with and without a stall duration,
+ * a request will stall by the maximum of the remaining times
+ * for each can-stall stream with outstanding buffers.</p>
+ * <p>This means that a stalling request will not have an exposure start
+ * until the stall has completed.</p>
+ * <p>This should correspond to the stall duration when only that stream is
+ * active, with all processing (typically in android.*.mode) set to FAST
+ * or OFF. Setting any of the processing modes to HIGH_QUALITY
+ * effectively results in an indeterminate stall duration for all
+ * streams in a request (the regular stall calculation rules are
+ * ignored).</p>
+ * <p>The following formats may always have a stall duration:</p>
+ * <ul>
+ * <li>{@link AIMAGE_FORMAT_JPEG}</li>
+ * <li>{@link AIMAGE_FORMAT_RAW16}</li>
+ * </ul>
+ * <p>The following formats will never have a stall duration:</p>
+ * <ul>
+ * <li>{@link AIMAGE_FORMAT_YUV_420_888}</li>
+ * <li>{@link AIMAGE_FORMAT_RAW10}</li>
+ * </ul>
+ * <p>All other formats may or may not have an allowed stall duration on
+ * a per-capability basis; refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ * for more details.</p>
+ * <p>See ACAMERA_SENSOR_FRAME_DURATION for more information about
+ * calculating the max frame rate (absent stalls).</p>
+ *
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ */
+ ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS = // int64[4*n]
+ ACAMERA_SCALER_START + 12,
+ /**
+ * <p>The crop type that this camera device supports.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>When passing a non-centered crop region (ACAMERA_SCALER_CROP_REGION) to a camera
+ * device that only supports CENTER_ONLY cropping, the camera device will move the
+ * crop region to the center of the sensor active array (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE)
+ * and keep the crop region width and height unchanged. The camera device will return the
+ * final used crop region in metadata result ACAMERA_SCALER_CROP_REGION.</p>
+ * <p>Camera devices that support FREEFORM cropping will support any crop region that
+ * is inside of the active array. The camera device will apply the same crop region and
+ * return the final used crop region in capture result metadata ACAMERA_SCALER_CROP_REGION.</p>
+ * <p>LEGACY capability devices will only support CENTER_ONLY cropping.</p>
+ *
+ * @see ACAMERA_SCALER_CROP_REGION
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_SCALER_CROPPING_TYPE = // byte (enum)
+ ACAMERA_SCALER_START + 13,
+ ACAMERA_SCALER_END,
+
+ /**
+ * <p>Duration each pixel is exposed to
+ * light.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>If the sensor can't expose this exact duration, it will shorten the
+ * duration exposed to the nearest possible value (rather than expose longer).
+ * The final exposure time used will be available in the output capture result.</p>
+ * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+ * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_MODE
+ */
+ ACAMERA_SENSOR_EXPOSURE_TIME = // int64
+ ACAMERA_SENSOR_START,
+ /**
+ * <p>Duration from start of frame exposure to
+ * start of next frame exposure.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>The maximum frame rate that can be supported by a camera subsystem is
+ * a function of many factors:</p>
+ * <ul>
+ * <li>Requested resolutions of output image streams</li>
+ * <li>Availability of binning / skipping modes on the imager</li>
+ * <li>The bandwidth of the imager interface</li>
+ * <li>The bandwidth of the various ISP processing blocks</li>
+ * </ul>
+ * <p>Since these factors can vary greatly between different ISPs and
+ * sensors, the camera abstraction tries to represent the bandwidth
+ * restrictions with as simple a model as possible.</p>
+ * <p>The model presented has the following characteristics:</p>
+ * <ul>
+ * <li>The image sensor is always configured to output the smallest
+ * resolution possible given the application's requested output stream
+ * sizes. The smallest resolution is defined as being at least as large
+ * as the largest requested output stream size; the camera pipeline must
+ * never digitally upsample sensor data when the crop region covers the
+ * whole sensor. In general, this means that if only small output stream
+ * resolutions are configured, the sensor can provide a higher frame
+ * rate.</li>
+ * <li>Since any request may use any or all the currently configured
+ * output streams, the sensor and ISP must be configured to support
+ * scaling a single capture to all the streams at the same time. This
+ * means the camera pipeline must be ready to produce the largest
+ * requested output size without any delay. Therefore, the overall
+ * frame rate of a given configured stream set is governed only by the
+ * largest requested stream resolution.</li>
+ * <li>Using more than one output stream in a request does not affect the
+ * frame duration.</li>
+ * <li>Certain format-streams may need to do additional background processing
+ * before data is consumed/produced by that stream. These processors
+ * can run concurrently to the rest of the camera pipeline, but
+ * cannot process more than 1 capture at a time.</li>
+ * </ul>
+ * <p>The necessary information for the application, given the model above,
+ * is provided via
+ * {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}.
+ * These are used to determine the maximum frame rate / minimum frame
+ * duration that is possible for a given stream configuration.</p>
+ * <p>Specifically, the application can use the following rules to
+ * determine the minimum frame duration it can request from the camera
+ * device:</p>
+ * <ol>
+ * <li>Let the set of currently configured input/output streams
+ * be called <code>S</code>.</li>
+ * <li>Find the minimum frame durations for each stream in <code>S</code>, by looking
+ * it up in {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
+ * (with its respective size/format). Let this set of frame durations be
+ * called <code>F</code>.</li>
+ * <li>For any given request <code>R</code>, the minimum frame duration allowed
+ * for <code>R</code> is the maximum out of all values in <code>F</code>. Let the streams
+ * used in <code>R</code> be called <code>S_r</code>.</li>
+ * </ol>
+ * <p>If none of the streams in <code>S_r</code> have a stall time (listed in {@link
+ * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}
+ * using its respective size/format), then the frame duration in <code>F</code>
+ * determines the steady state frame rate that the application will get
+ * if it uses <code>R</code> as a repeating request. Let this special kind of
+ * request be called <code>Rsimple</code>.</p>
+ * <p>A repeating request <code>Rsimple</code> can be <em>occasionally</em> interleaved
+ * by a single capture of a new request <code>Rstall</code> (which has at least
+ * one in-use stream with a non-0 stall time) and if <code>Rstall</code> has the
+ * same minimum frame duration this will not cause a frame rate loss
+ * if all buffers from the previous <code>Rstall</code> have already been
+ * delivered.</p>
+ * <p>For more details about stalling, see
+ * {@link ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}.</p>
+ * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+ * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_MODE
+ */
+ ACAMERA_SENSOR_FRAME_DURATION = // int64
+ ACAMERA_SENSOR_START + 1,
+ /**
+ * <p>The amount of gain applied to sensor data
+ * before processing.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>The sensitivity is the standard ISO sensitivity value,
+ * as defined in ISO 12232:2006.</p>
+ * <p>The sensitivity must be within ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE, and
+ * if if it less than ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY, the camera device
+ * is guaranteed to use only analog amplification for applying the gain.</p>
+ * <p>If the camera device cannot apply the exact sensitivity
+ * requested, it will reduce the gain to the nearest supported
+ * value. The final sensitivity used will be available in the
+ * output capture result.</p>
+ * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+ * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_MODE
+ * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
+ * @see ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY
+ */
+ ACAMERA_SENSOR_SENSITIVITY = // int32
+ ACAMERA_SENSOR_START + 2,
+ /**
+ * <p>The standard reference illuminant used as the scene light source when
+ * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM1,
+ * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
+ * ACAMERA_SENSOR_FORWARD_MATRIX1 matrices.</p>
+ *
+ * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
+ * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
+ * @see ACAMERA_SENSOR_FORWARD_MATRIX1
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The values in this key correspond to the values defined for the
+ * EXIF LightSource tag. These illuminants are standard light sources
+ * that are often used calibrating camera devices.</p>
+ * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM1,
+ * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
+ * ACAMERA_SENSOR_FORWARD_MATRIX1 will also be present.</p>
+ * <p>Some devices may choose to provide a second set of calibration
+ * information for improved quality, including
+ * ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 and its corresponding matrices.</p>
+ *
+ * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
+ * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
+ * @see ACAMERA_SENSOR_FORWARD_MATRIX1
+ * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+ */
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 = // byte (enum)
+ ACAMERA_SENSOR_START + 3,
+ /**
+ * <p>The standard reference illuminant used as the scene light source when
+ * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM2,
+ * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
+ * ACAMERA_SENSOR_FORWARD_MATRIX2 matrices.</p>
+ *
+ * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
+ * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
+ * @see ACAMERA_SENSOR_FORWARD_MATRIX2
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>See ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 for more details.</p>
+ * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM2,
+ * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
+ * ACAMERA_SENSOR_FORWARD_MATRIX2 will also be present.</p>
+ *
+ * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
+ * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
+ * @see ACAMERA_SENSOR_FORWARD_MATRIX2
+ * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+ */
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 = // byte
+ ACAMERA_SENSOR_START + 4,
+ /**
+ * <p>A per-device calibration transform matrix that maps from the
+ * reference sensor colorspace to the actual device sensor colorspace.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This matrix is used to correct for per-device variations in the
+ * sensor colorspace, and is used for processing raw buffer data.</p>
+ * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+ * contains a per-device calibration transform that maps colors
+ * from reference sensor color space (i.e. the "golden module"
+ * colorspace) into this camera device's native sensor color
+ * space under the first reference illuminant
+ * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
+ *
+ * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+ */
+ ACAMERA_SENSOR_CALIBRATION_TRANSFORM1 = // rational[3*3]
+ ACAMERA_SENSOR_START + 5,
+ /**
+ * <p>A per-device calibration transform matrix that maps from the
+ * reference sensor colorspace to the actual device sensor colorspace
+ * (this is the colorspace of the raw buffer data).</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This matrix is used to correct for per-device variations in the
+ * sensor colorspace, and is used for processing raw buffer data.</p>
+ * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+ * contains a per-device calibration transform that maps colors
+ * from reference sensor color space (i.e. the "golden module"
+ * colorspace) into this camera device's native sensor color
+ * space under the second reference illuminant
+ * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
+ * <p>This matrix will only be present if the second reference
+ * illuminant is present.</p>
+ *
+ * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+ */
+ ACAMERA_SENSOR_CALIBRATION_TRANSFORM2 = // rational[3*3]
+ ACAMERA_SENSOR_START + 6,
+ /**
+ * <p>A matrix that transforms color values from CIE XYZ color space to
+ * reference sensor color space.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This matrix is used to convert from the standard CIE XYZ color
+ * space to the reference sensor colorspace, and is used when processing
+ * raw buffer data.</p>
+ * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+ * contains a color transform matrix that maps colors from the CIE
+ * XYZ color space to the reference sensor color space (i.e. the
+ * "golden module" colorspace) under the first reference illuminant
+ * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
+ * <p>The white points chosen in both the reference sensor color space
+ * and the CIE XYZ colorspace when calculating this transform will
+ * match the standard white point for the first reference illuminant
+ * (i.e. no chromatic adaptation will be applied by this transform).</p>
+ *
+ * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+ */
+ ACAMERA_SENSOR_COLOR_TRANSFORM1 = // rational[3*3]
+ ACAMERA_SENSOR_START + 7,
+ /**
+ * <p>A matrix that transforms color values from CIE XYZ color space to
+ * reference sensor color space.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This matrix is used to convert from the standard CIE XYZ color
+ * space to the reference sensor colorspace, and is used when processing
+ * raw buffer data.</p>
+ * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+ * contains a color transform matrix that maps colors from the CIE
+ * XYZ color space to the reference sensor color space (i.e. the
+ * "golden module" colorspace) under the second reference illuminant
+ * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
+ * <p>The white points chosen in both the reference sensor color space
+ * and the CIE XYZ colorspace when calculating this transform will
+ * match the standard white point for the second reference illuminant
+ * (i.e. no chromatic adaptation will be applied by this transform).</p>
+ * <p>This matrix will only be present if the second reference
+ * illuminant is present.</p>
+ *
+ * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+ */
+ ACAMERA_SENSOR_COLOR_TRANSFORM2 = // rational[3*3]
+ ACAMERA_SENSOR_START + 8,
+ /**
+ * <p>A matrix that transforms white balanced camera colors from the reference
+ * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
+ * is used when processing raw buffer data.</p>
+ * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
+ * a color transform matrix that maps white balanced colors from the
+ * reference sensor color space to the CIE XYZ color space with a D50 white
+ * point.</p>
+ * <p>Under the first reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1)
+ * this matrix is chosen so that the standard white point for this reference
+ * illuminant in the reference sensor colorspace is mapped to D50 in the
+ * CIE XYZ colorspace.</p>
+ *
+ * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+ */
+ ACAMERA_SENSOR_FORWARD_MATRIX1 = // rational[3*3]
+ ACAMERA_SENSOR_START + 9,
+ /**
+ * <p>A matrix that transforms white balanced camera colors from the reference
+ * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
+ * is used when processing raw buffer data.</p>
+ * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
+ * a color transform matrix that maps white balanced colors from the
+ * reference sensor color space to the CIE XYZ color space with a D50 white
+ * point.</p>
+ * <p>Under the second reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2)
+ * this matrix is chosen so that the standard white point for this reference
+ * illuminant in the reference sensor colorspace is mapped to D50 in the
+ * CIE XYZ colorspace.</p>
+ * <p>This matrix will only be present if the second reference
+ * illuminant is present.</p>
+ *
+ * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+ */
+ ACAMERA_SENSOR_FORWARD_MATRIX2 = // rational[3*3]
+ ACAMERA_SENSOR_START + 10,
+ /**
+ * <p>A fixed black level offset for each of the color filter arrangement
+ * (CFA) mosaic channels.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This key specifies the zero light value for each of the CFA mosaic
+ * channels in the camera sensor. The maximal value output by the
+ * sensor is represented by the value in ACAMERA_SENSOR_INFO_WHITE_LEVEL.</p>
+ * <p>The values are given in the same order as channels listed for the CFA
+ * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
+ * nth value given corresponds to the black level offset for the nth
+ * color channel listed in the CFA.</p>
+ * <p>The black level values of captured images may vary for different
+ * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
+ * represents a coarse approximation for such case. It is recommended to
+ * use ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL or use pixels from
+ * ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS directly for captures when
+ * supported by the camera device, which provides more accurate black
+ * level values. For raw capture in particular, it is recommended to use
+ * pixels from ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS to calculate black
+ * level values for each frame.</p>
+ *
+ * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
+ * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+ * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
+ * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_SENSOR_BLACK_LEVEL_PATTERN = // int32[4]
+ ACAMERA_SENSOR_START + 12,
+ /**
+ * <p>Maximum sensitivity that is implemented
+ * purely through analog gain.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>For ACAMERA_SENSOR_SENSITIVITY values less than or
+ * equal to this, all applied gain must be analog. For
+ * values above this, the gain applied can be a mix of analog and
+ * digital.</p>
+ *
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY = // int32
+ ACAMERA_SENSOR_START + 13,
+ /**
+ * <p>Clockwise angle through which the output image needs to be rotated to be
+ * upright on the device screen in its native orientation.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Also defines the direction of rolling shutter readout, which is from top to bottom in
+ * the sensor's coordinate system.</p>
+ */
+ ACAMERA_SENSOR_ORIENTATION = // int32
+ ACAMERA_SENSOR_START + 14,
+ /**
+ * <p>Time at start of exposure of first
+ * row of the image sensor active array, in nanoseconds.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>The timestamps are also included in all image
+ * buffers produced for the same capture, and will be identical
+ * on all the outputs.</p>
+ * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> UNKNOWN,
+ * the timestamps measure time since an unspecified starting point,
+ * and are monotonically increasing. They can be compared with the
+ * timestamps for other captures from the same camera device, but are
+ * not guaranteed to be comparable to any other time source.</p>
+ * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME, the
+ * timestamps measure time in the same timebase as
+ * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
+ * (or CLOCK_BOOTTIME), and they can
+ * be compared to other timestamps from other subsystems that
+ * are using that base.</p>
+ * <p>For reprocessing, the timestamp will match the start of exposure of
+ * the input image, i.e. {@link CaptureResult#SENSOR_TIMESTAMP the
+ * timestamp} in the TotalCaptureResult that was used to create the
+ * reprocess capture request.</p>
+ *
+ * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+ */
+ ACAMERA_SENSOR_TIMESTAMP = // int64
+ ACAMERA_SENSOR_START + 16,
+ /**
+ * <p>The estimated camera neutral color in the native sensor colorspace at
+ * the time of capture.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>This value gives the neutral color point encoded as an RGB value in the
+ * native sensor color space. The neutral color point indicates the
+ * currently estimated white point of the scene illumination. It can be
+ * used to interpolate between the provided color transforms when
+ * processing raw sensor data.</p>
+ * <p>The order of the values is R, G, B; where R is in the lowest index.</p>
+ */
+ ACAMERA_SENSOR_NEUTRAL_COLOR_POINT = // rational[3]
+ ACAMERA_SENSOR_START + 18,
+ /**
+ * <p>Noise model coefficients for each CFA mosaic channel.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>This key contains two noise model coefficients for each CFA channel
+ * corresponding to the sensor amplification (S) and sensor readout
+ * noise (O). These are given as pairs of coefficients for each channel
+ * in the same order as channels listed for the CFA layout key
+ * (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT). This is
+ * represented as an array of Pair<Double, Double>, where
+ * the first member of the Pair at index n is the S coefficient and the
+ * second member is the O coefficient for the nth color channel in the CFA.</p>
+ * <p>These coefficients are used in a two parameter noise model to describe
+ * the amount of noise present in the image for each CFA channel. The
+ * noise model used here is:</p>
+ * <p>N(x) = sqrt(Sx + O)</p>
+ * <p>Where x represents the recorded signal of a CFA channel normalized to
+ * the range [0, 1], and S and O are the noise model coeffiecients for
+ * that channel.</p>
+ * <p>A more detailed description of the noise model can be found in the
+ * Adobe DNG specification for the NoiseProfile tag.</p>
+ *
+ * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+ */
+ ACAMERA_SENSOR_NOISE_PROFILE = // double[2*CFA Channels]
+ ACAMERA_SENSOR_START + 19,
+ /**
+ * <p>The worst-case divergence between Bayer green channels.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>This value is an estimate of the worst case split between the
+ * Bayer green channels in the red and blue rows in the sensor color
+ * filter array.</p>
+ * <p>The green split is calculated as follows:</p>
+ * <ol>
+ * <li>A 5x5 pixel (or larger) window W within the active sensor array is
+ * chosen. The term 'pixel' here is taken to mean a group of 4 Bayer
+ * mosaic channels (R, Gr, Gb, B). The location and size of the window
+ * chosen is implementation defined, and should be chosen to provide a
+ * green split estimate that is both representative of the entire image
+ * for this camera sensor, and can be calculated quickly.</li>
+ * <li>The arithmetic mean of the green channels from the red
+ * rows (mean_Gr) within W is computed.</li>
+ * <li>The arithmetic mean of the green channels from the blue
+ * rows (mean_Gb) within W is computed.</li>
+ * <li>The maximum ratio R of the two means is computed as follows:
+ * <code>R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))</code></li>
+ * </ol>
+ * <p>The ratio R is the green split divergence reported for this property,
+ * which represents how much the green channels differ in the mosaic
+ * pattern. This value is typically used to determine the treatment of
+ * the green mosaic channels when demosaicing.</p>
+ * <p>The green split value can be roughly interpreted as follows:</p>
+ * <ul>
+ * <li>R < 1.03 is a negligible split (<3% divergence).</li>
+ * <li>1.20 <= R >= 1.03 will require some software
+ * correction to avoid demosaic errors (3-20% divergence).</li>
+ * <li>R > 1.20 will require strong software correction to produce
+ * a usuable image (>20% divergence).</li>
+ * </ul>
+ */
+ ACAMERA_SENSOR_GREEN_SPLIT = // float
+ ACAMERA_SENSOR_START + 22,
+ /**
+ * <p>A pixel <code>[R, G_even, G_odd, B]</code> that supplies the test pattern
+ * when ACAMERA_SENSOR_TEST_PATTERN_MODE is SOLID_COLOR.</p>
+ *
+ * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Each color channel is treated as an unsigned 32-bit integer.
+ * The camera device then uses the most significant X bits
+ * that correspond to how many bits are in its Bayer raw sensor
+ * output.</p>
+ * <p>For example, a sensor with RAW10 Bayer output would use the
+ * 10 most significant bits from each color channel.</p>
+ */
+ ACAMERA_SENSOR_TEST_PATTERN_DATA = // int32[4]
+ ACAMERA_SENSOR_START + 23,
+ /**
+ * <p>When enabled, the sensor sends a test pattern instead of
+ * doing a real exposure from the camera.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When a test pattern is enabled, all manual sensor controls specified
+ * by ACAMERA_SENSOR_* will be ignored. All other controls should
+ * work as normal.</p>
+ * <p>For example, if manual flash is enabled, flash firing should still
+ * occur (and that the test pattern remain unmodified, since the flash
+ * would not actually affect it).</p>
+ * <p>Defaults to OFF.</p>
+ */
+ ACAMERA_SENSOR_TEST_PATTERN_MODE = // int32 (enum)
+ ACAMERA_SENSOR_START + 24,
+ /**
+ * <p>List of sensor test pattern modes for ACAMERA_SENSOR_TEST_PATTERN_MODE
+ * supported by this camera device.</p>
+ *
+ * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Defaults to OFF, and always includes OFF if defined.</p>
+ */
+ ACAMERA_SENSOR_AVAILABLE_TEST_PATTERN_MODES = // int32[n]
+ ACAMERA_SENSOR_START + 25,
+ /**
+ * <p>Duration between the start of first row exposure
+ * and the start of last row exposure.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>This is the exposure time skew between the first and last
+ * row exposure start times. The first row and the last row are
+ * the first and last rows inside of the
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+ * <p>For typical camera sensors that use rolling shutters, this is also equivalent
+ * to the frame readout time.</p>
+ *
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_SENSOR_ROLLING_SHUTTER_SKEW = // int64
+ ACAMERA_SENSOR_START + 26,
+ /**
+ * <p>List of disjoint rectangles indicating the sensor
+ * optically shielded black pixel regions.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>In most camera sensors, the active array is surrounded by some
+ * optically shielded pixel areas. By blocking light, these pixels
+ * provides a reliable black reference for black level compensation
+ * in active array region.</p>
+ * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+ * <p>This key provides a list of disjoint rectangles specifying the
+ * regions of optically shielded (with metal shield) black pixel
+ * regions if the camera device is capable of reading out these black
+ * pixels in the output raw images. In comparison to the fixed black
+ * level values reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN, this key
+ * may provide a more accurate way for the application to calculate
+ * black level of each captured raw images.</p>
+ * <p>When this key is reported, the ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL and
+ * ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL will also be reported.</p>
+ *
+ * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+ * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
+ * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
+ */
+ ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS = // int32[4*num_regions]
+ ACAMERA_SENSOR_START + 27,
+ /**
+ * <p>A per-frame dynamic black level offset for each of the color filter
+ * arrangement (CFA) mosaic channels.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Camera sensor black levels may vary dramatically for different
+ * capture settings (e.g. ACAMERA_SENSOR_SENSITIVITY). The fixed black
+ * level reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may be too
+ * inaccurate to represent the actual value on a per-frame basis. The
+ * camera device internal pipeline relies on reliable black level values
+ * to process the raw images appropriately. To get the best image
+ * quality, the camera device may choose to estimate the per frame black
+ * level values either based on optically shielded black regions
+ * (ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS) or its internal model.</p>
+ * <p>This key reports the camera device estimated per-frame zero light
+ * value for each of the CFA mosaic channels in the camera sensor. The
+ * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may only represent a coarse
+ * approximation of the actual black level values. This value is the
+ * black level used in camera device internal image processing pipeline
+ * and generally more accurate than the fixed black level values.
+ * However, since they are estimated values by the camera device, they
+ * may not be as accurate as the black level values calculated from the
+ * optical black pixels reported by ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS.</p>
+ * <p>The values are given in the same order as channels listed for the CFA
+ * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
+ * nth value given corresponds to the black level offset for the nth
+ * color channel listed in the CFA.</p>
+ * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
+ * available or the camera device advertises this key via
+ * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
+ *
+ * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+ * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+ * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL = // float[4]
+ ACAMERA_SENSOR_START + 28,
+ /**
+ * <p>Maximum raw value output by sensor for this frame.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Since the ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may change for different
+ * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY), the white
+ * level will change accordingly. This key is similar to
+ * ACAMERA_SENSOR_INFO_WHITE_LEVEL, but specifies the camera device
+ * estimated white level for each frame.</p>
+ * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
+ * available or the camera device advertises this key via
+ * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
+ *
+ * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+ * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
+ * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL = // int32
+ ACAMERA_SENSOR_START + 29,
+ ACAMERA_SENSOR_END,
+
+ /**
+ * <p>The area of the image sensor which corresponds to active pixels after any geometric
+ * distortion correction has been applied.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
+ * the region that actually receives light from the scene) after any geometric correction
+ * has been applied, and should be treated as the maximum size in pixels of any of the
+ * image output formats aside from the raw formats.</p>
+ * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
+ * the full pixel array, and the size of the full pixel array is given by
+ * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+ * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+ * <p>The coordinate system for most other keys that list pixel coordinates, including
+ * ACAMERA_SCALER_CROP_REGION, is defined relative to the active array rectangle given in
+ * this field, with <code>(0, 0)</code> being the top-left of this rectangle.</p>
+ * <p>The active array may be smaller than the full pixel array, since the full array may
+ * include black calibration pixels or other inactive regions, and geometric correction
+ * resulting in scaling or cropping may have been applied.</p>
+ *
+ * @see ACAMERA_SCALER_CROP_REGION
+ * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+ */
+ ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE = // int32[4]
+ ACAMERA_SENSOR_INFO_START,
+ /**
+ * <p>Range of sensitivities for ACAMERA_SENSOR_SENSITIVITY supported by this
+ * camera device.</p>
+ *
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The values are the standard ISO sensitivity values,
+ * as defined in ISO 12232:2006.</p>
+ */
+ ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE = // int32[2]
+ ACAMERA_SENSOR_INFO_START + 1,
+ /**
+ * <p>The arrangement of color filters on sensor;
+ * represents the colors in the top-left 2x2 section of
+ * the sensor, in reading order.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT = // byte (enum)
+ ACAMERA_SENSOR_INFO_START + 2,
+ /**
+ * <p>The range of image exposure times for ACAMERA_SENSOR_EXPOSURE_TIME supported
+ * by this camera device.</p>
+ *
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE = // int64[2]
+ ACAMERA_SENSOR_INFO_START + 3,
+ /**
+ * <p>The maximum possible frame duration (minimum frame rate) for
+ * ACAMERA_SENSOR_FRAME_DURATION that is supported this camera device.</p>
+ *
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Attempting to use frame durations beyond the maximum will result in the frame
+ * duration being clipped to the maximum. See that control for a full definition of frame
+ * durations.</p>
+ * <p>Refer to {@link
+ * ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
+ * for the minimum frame duration values.</p>
+ */
+ ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION = // int64
+ ACAMERA_SENSOR_INFO_START + 4,
+ /**
+ * <p>The physical dimensions of the full pixel
+ * array.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This is the physical size of the sensor pixel
+ * array defined by ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+ *
+ * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+ */
+ ACAMERA_SENSOR_INFO_PHYSICAL_SIZE = // float[2]
+ ACAMERA_SENSOR_INFO_START + 5,
+ /**
+ * <p>Dimensions of the full pixel array, possibly
+ * including black calibration pixels.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The pixel count of the full pixel array of the image sensor, which covers
+ * ACAMERA_SENSOR_INFO_PHYSICAL_SIZE area. This represents the full pixel dimensions of
+ * the raw buffers produced by this sensor.</p>
+ * <p>If a camera device supports raw sensor formats, either this or
+ * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is the maximum dimensions for the raw
+ * output formats listed in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS (this depends on
+ * whether or not the image sensor returns buffers containing pixels that are not
+ * part of the active array region for blacklevel calibration or other purposes).</p>
+ * <p>Some parts of the full pixel array may not receive light from the scene,
+ * or be otherwise inactive. The ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE key
+ * defines the rectangle of active pixels that will be included in processed image
+ * formats.</p>
+ *
+ * @see ACAMERA_SENSOR_INFO_PHYSICAL_SIZE
+ * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE = // int32[2]
+ ACAMERA_SENSOR_INFO_START + 6,
+ /**
+ * <p>Maximum raw value output by sensor.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This specifies the fully-saturated encoding level for the raw
+ * sample values from the sensor. This is typically caused by the
+ * sensor becoming highly non-linear or clipping. The minimum for
+ * each channel is specified by the offset in the
+ * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN key.</p>
+ * <p>The white level is typically determined either by sensor bit depth
+ * (8-14 bits is expected), or by the point where the sensor response
+ * becomes too non-linear to be useful. The default value for this is
+ * maximum representable value for a 16-bit raw sample (2^16 - 1).</p>
+ * <p>The white level values of captured images may vary for different
+ * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
+ * represents a coarse approximation for such case. It is recommended
+ * to use ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL for captures when supported
+ * by the camera device, which provides more accurate white level values.</p>
+ *
+ * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+ * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_SENSOR_INFO_WHITE_LEVEL = // int32
+ ACAMERA_SENSOR_INFO_START + 7,
+ /**
+ * <p>The time base source for sensor capture start timestamps.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The timestamps provided for captures are always in nanoseconds and monotonic, but
+ * may not based on a time source that can be compared to other system time sources.</p>
+ * <p>This characteristic defines the source for the timestamps, and therefore whether they
+ * can be compared against other system time sources/timestamps.</p>
+ */
+ ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE = // byte (enum)
+ ACAMERA_SENSOR_INFO_START + 8,
+ /**
+ * <p>Whether the RAW images output from this camera device are subject to
+ * lens shading correction.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If TRUE, all images produced by the camera device in the RAW image formats will
+ * have lens shading correction already applied to it. If FALSE, the images will
+ * not be adjusted for lens shading correction.
+ * See android.request.maxNumOutputRaw for a list of RAW image formats.</p>
+ * <p>This key will be <code>null</code> for all devices do not report this information.
+ * Devices with RAW capability will always report this information in this key.</p>
+ */
+ ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED = // byte (enum)
+ ACAMERA_SENSOR_INFO_START + 9,
+ /**
+ * <p>The area of the image sensor which corresponds to active pixels prior to the
+ * application of any geometric distortion correction.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+ * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
+ * the region that actually receives light from the scene) before any geometric correction
+ * has been applied, and should be treated as the active region rectangle for any of the
+ * raw formats. All metadata associated with raw processing (e.g. the lens shading
+ * correction map, and radial distortion fields) treats the top, left of this rectangle as
+ * the origin, (0,0).</p>
+ * <p>The size of this region determines the maximum field of view and the maximum number of
+ * pixels that an image from this sensor can contain, prior to the application of
+ * geometric distortion correction. The effective maximum pixel dimensions of a
+ * post-distortion-corrected image is given by the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ * field, and the effective maximum field of view for a post-distortion-corrected image
+ * can be calculated by applying the geometric distortion correction fields to this
+ * rectangle, and cropping to the rectangle given in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+ * <p>E.g. to calculate position of a pixel, (x,y), in a processed YUV output image with the
+ * dimensions in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE given the position of a pixel,
+ * (x', y'), in the raw pixel array with dimensions give in
+ * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE:</p>
+ * <ol>
+ * <li>Choose a pixel (x', y') within the active array region of the raw buffer given in
+ * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE, otherwise this pixel is considered
+ * to be outside of the FOV, and will not be shown in the processed output image.</li>
+ * <li>Apply geometric distortion correction to get the post-distortion pixel coordinate,
+ * (x_i, y_i). When applying geometric correction metadata, note that metadata for raw
+ * buffers is defined relative to the top, left of the
+ * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE rectangle.</li>
+ * <li>If the resulting corrected pixel coordinate is within the region given in
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, then the position of this pixel in the
+ * processed output image buffer is <code>(x_i - activeArray.left, y_i - activeArray.top)</code>,
+ * when the top, left coordinate of that buffer is treated as (0, 0).</li>
+ * </ol>
+ * <p>Thus, for pixel x',y' = (25, 25) on a sensor where ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+ * is (100,100), ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is (10, 10, 100, 100),
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE is (20, 20, 80, 80), and the geometric distortion
+ * correction doesn't change the pixel coordinate, the resulting pixel selected in
+ * pixel coordinates would be x,y = (25, 25) relative to the top,left of the raw buffer
+ * with dimensions given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE, and would be (5, 5)
+ * relative to the top,left of post-processed YUV output buffer with dimensions given in
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+ * <p>The currently supported fields that correct for geometric distortion are:</p>
+ * <ol>
+ * <li>ACAMERA_LENS_RADIAL_DISTORTION.</li>
+ * </ol>
+ * <p>If all of the geometric distortion fields are no-ops, this rectangle will be the same
+ * as the post-distortion-corrected rectangle given in
+ * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+ * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
+ * the full pixel array, and the size of the full pixel array is given by
+ * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+ * <p>The pre-correction active array may be smaller than the full pixel array, since the
+ * full array may include black calibration pixels or other inactive regions.</p>
+ *
+ * @see ACAMERA_LENS_RADIAL_DISTORTION
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+ * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE = // int32[4]
+ ACAMERA_SENSOR_INFO_START + 10,
+ ACAMERA_SENSOR_INFO_END,
+
+ /**
+ * <p>Quality of lens shading correction applied
+ * to the image data.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When set to OFF mode, no lens shading correction will be applied by the
+ * camera device, and an identity lens shading map data will be provided
+ * if <code>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON</code>. For example, for lens
+ * shading map with size of <code>[ 4, 3 ]</code>,
+ * the output android.statistics.lensShadingCorrectionMap for this case will be an identity
+ * map shown below:</p>
+ * <pre><code>[ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0,
+ * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0,
+ * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0,
+ * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0,
+ * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0,
+ * 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 ]
+ * </code></pre>
+ * <p>When set to other modes, lens shading correction will be applied by the camera
+ * device. Applications can request lens shading map data by setting
+ * ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE to ON, and then the camera device will provide lens
+ * shading map data in android.statistics.lensShadingCorrectionMap; the returned shading map
+ * data will be the one applied by the camera device for this capture request.</p>
+ * <p>The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore
+ * the reliability of the map data may be affected by the AE and AWB algorithms. When AE and
+ * AWB are in AUTO modes(ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF and ACAMERA_CONTROL_AWB_MODE <code>!=</code>
+ * OFF), to get best results, it is recommended that the applications wait for the AE and AWB
+ * to be converged before using the returned shading map data.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AWB_MODE
+ * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+ */
+ ACAMERA_SHADING_MODE = // byte (enum)
+ ACAMERA_SHADING_START,
+ /**
+ * <p>List of lens shading modes for ACAMERA_SHADING_MODE that are supported by this camera device.</p>
+ *
+ * @see ACAMERA_SHADING_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This list contains lens shading modes that can be set for the camera device.
+ * Camera devices that support the MANUAL_POST_PROCESSING capability will always
+ * list OFF and FAST mode. This includes all FULL level devices.
+ * LEGACY devices will always only support FAST mode.</p>
+ */
+ ACAMERA_SHADING_AVAILABLE_MODES = // byte[n]
+ ACAMERA_SHADING_START + 2,
+ ACAMERA_SHADING_END,
+
+ /**
+ * <p>Operating mode for the face detector
+ * unit.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Whether face detection is enabled, and whether it
+ * should output just the basic fields or the full set of
+ * fields.</p>
+ */
+ ACAMERA_STATISTICS_FACE_DETECT_MODE = // byte (enum)
+ ACAMERA_STATISTICS_START,
+ /**
+ * <p>Operating mode for hot pixel map generation.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>If set to <code>true</code>, a hot pixel map is returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.
+ * If set to <code>false</code>, no hot pixel map will be returned.</p>
+ *
+ * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+ */
+ ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE = // byte (enum)
+ ACAMERA_STATISTICS_START + 3,
+ /**
+ * <p>List of unique IDs for detected faces.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Each detected face is given a unique ID that is valid for as long as the face is visible
+ * to the camera device. A face that leaves the field of view and later returns may be
+ * assigned a new ID.</p>
+ * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
+ *
+ * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+ */
+ ACAMERA_STATISTICS_FACE_IDS = // int32[n]
+ ACAMERA_STATISTICS_START + 4,
+ /**
+ * <p>List of landmarks for detected
+ * faces.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
+ * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
+ * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
+ *
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+ */
+ ACAMERA_STATISTICS_FACE_LANDMARKS = // int32[n*6]
+ ACAMERA_STATISTICS_START + 5,
+ /**
+ * <p>List of the bounding rectangles for detected
+ * faces.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+ * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
+ * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
+ * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF</p>
+ *
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+ */
+ ACAMERA_STATISTICS_FACE_RECTANGLES = // int32[n*4]
+ ACAMERA_STATISTICS_START + 6,
+ /**
+ * <p>List of the face confidence scores for
+ * detected faces</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF.</p>
+ *
+ * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+ */
+ ACAMERA_STATISTICS_FACE_SCORES = // byte[n]
+ ACAMERA_STATISTICS_START + 7,
+ /**
+ * <p>The shading map is a low-resolution floating-point map
+ * that lists the coefficients used to correct for vignetting and color shading,
+ * for each Bayer color channel of RAW image data.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>The map provided here is the same map that is used by the camera device to
+ * correct both color shading and vignetting for output non-RAW images.</p>
+ * <p>When there is no lens shading correction applied to RAW
+ * output images (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED <code>==</code>
+ * false), this map is the complete lens shading correction
+ * map; when there is some lens shading correction applied to
+ * the RAW output image (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED<code>==</code> true), this map reports the remaining lens shading
+ * correction map that needs to be applied to get shading
+ * corrected images that match the camera device's output for
+ * non-RAW formats.</p>
+ * <p>For a complete shading correction map, the least shaded
+ * section of the image will have a gain factor of 1; all
+ * other sections will have gains above 1.</p>
+ * <p>When ACAMERA_COLOR_CORRECTION_MODE = TRANSFORM_MATRIX, the map
+ * will take into account the colorCorrection settings.</p>
+ * <p>The shading map is for the entire active pixel array, and is not
+ * affected by the crop region specified in the request. Each shading map
+ * entry is the value of the shading compensation map over a specific
+ * pixel on the sensor. Specifically, with a (N x M) resolution shading
+ * map, and an active pixel array size (W x H), shading map entry
+ * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at
+ * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels.
+ * The map is assumed to be bilinearly interpolated between the sample points.</p>
+ * <p>The channel order is [R, Geven, Godd, B], where Geven is the green
+ * channel for the even rows of a Bayer pattern, and Godd is the odd rows.
+ * The shading map is stored in a fully interleaved format, and its size
+ * is provided in the camera static metadata by ACAMERA_LENS_INFO_SHADING_MAP_SIZE.</p>
+ * <p>The shading map will generally have on the order of 30-40 rows and columns,
+ * and will be smaller than 64x64.</p>
+ * <p>As an example, given a very small map defined as:</p>
+ * <pre><code>ACAMERA_LENS_INFO_SHADING_MAP_SIZE = [ 4, 3 ]
+ * ACAMERA_STATISTICS_LENS_SHADING_MAP =
+ * [ 1.3, 1.2, 1.15, 1.2, 1.2, 1.2, 1.15, 1.2,
+ * 1.1, 1.2, 1.2, 1.2, 1.3, 1.2, 1.3, 1.3,
+ * 1.2, 1.2, 1.25, 1.1, 1.1, 1.1, 1.1, 1.0,
+ * 1.0, 1.0, 1.0, 1.0, 1.2, 1.3, 1.25, 1.2,
+ * 1.3, 1.2, 1.2, 1.3, 1.2, 1.15, 1.1, 1.2,
+ * 1.2, 1.1, 1.0, 1.2, 1.3, 1.15, 1.2, 1.3 ]
+ * </code></pre>
+ * <p>The low-resolution scaling map images for each channel are
+ * (displayed using nearest-neighbor interpolation):</p>
+ * <p><img alt="Red lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" />
+ * <img alt="Green (even rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" />
+ * <img alt="Green (odd rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" />
+ * <img alt="Blue lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p>
+ * <p>As a visualization only, inverting the full-color map to recover an
+ * image of a gray wall (using bicubic interpolation for visual quality)
+ * as captured by the sensor gives:</p>
+ * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p>
+ * <p>Note that the RAW image data might be subject to lens shading
+ * correction not reported on this map. Query
+ * ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED to see if RAW image data has subject
+ * to lens shading correction. If ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+ * is TRUE, the RAW image data is subject to partial or full lens shading
+ * correction. In the case full lens shading correction is applied to RAW
+ * images, the gain factor map reported in this key will contain all 1.0 gains.
+ * In other words, the map reported in this key is the remaining lens shading
+ * that needs to be applied on the RAW image to get images without lens shading
+ * artifacts. See android.request.maxNumOutputRaw for a list of RAW image
+ * formats.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_MODE
+ * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
+ * @see ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+ * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+ */
+ ACAMERA_STATISTICS_LENS_SHADING_MAP = // float[4*n*m]
+ ACAMERA_STATISTICS_START + 11,
+ /**
+ * <p>The camera device estimated scene illumination lighting
+ * frequency.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>Many light sources, such as most fluorescent lights, flicker at a rate
+ * that depends on the local utility power standards. This flicker must be
+ * accounted for by auto-exposure routines to avoid artifacts in captured images.
+ * The camera device uses this entry to tell the application what the scene
+ * illuminant frequency is.</p>
+ * <p>When manual exposure control is enabled
+ * (<code>ACAMERA_CONTROL_AE_MODE == OFF</code> or <code>ACAMERA_CONTROL_MODE ==
+ * OFF</code>), the ACAMERA_CONTROL_AE_ANTIBANDING_MODE doesn't perform
+ * antibanding, and the application can ensure it selects
+ * exposure times that do not cause banding issues by looking
+ * into this metadata field. See
+ * ACAMERA_CONTROL_AE_ANTIBANDING_MODE for more details.</p>
+ * <p>Reports NONE if there doesn't appear to be flickering illumination.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_MODE
+ */
+ ACAMERA_STATISTICS_SCENE_FLICKER = // byte (enum)
+ ACAMERA_STATISTICS_START + 14,
+ /**
+ * <p>List of <code>(x, y)</code> coordinates of hot/defective pixels on the sensor.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>A coordinate <code>(x, y)</code> must lie between <code>(0, 0)</code>, and
+ * <code>(width - 1, height - 1)</code> (inclusive), which are the top-left and
+ * bottom-right of the pixel array, respectively. The width and
+ * height dimensions are given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.
+ * This may include hot pixels that lie outside of the active array
+ * bounds given by ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+ *
+ * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+ * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+ */
+ ACAMERA_STATISTICS_HOT_PIXEL_MAP = // int32[2*n]
+ ACAMERA_STATISTICS_START + 15,
+ /**
+ * <p>Whether the camera device will output the lens
+ * shading map in output result metadata.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When set to ON,
+ * ACAMERA_STATISTICS_LENS_SHADING_MAP will be provided in
+ * the output result metadata.</p>
+ * <p>ON is always supported on devices with the RAW capability.</p>
+ *
+ * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+ */
+ ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE = // byte (enum)
+ ACAMERA_STATISTICS_START + 16,
+ ACAMERA_STATISTICS_END,
+
+ /**
+ * <p>List of face detection modes for ACAMERA_STATISTICS_FACE_DETECT_MODE that are
+ * supported by this camera device.</p>
+ *
+ * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>OFF is always supported.</p>
+ */
+ ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES = // byte[n]
+ ACAMERA_STATISTICS_INFO_START,
+ /**
+ * <p>The maximum number of simultaneously detectable
+ * faces.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>None</p>
+ */
+ ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT = // int32
+ ACAMERA_STATISTICS_INFO_START + 2,
+ /**
+ * <p>List of hot pixel map output modes for ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE that are
+ * supported by this camera device.</p>
+ *
+ * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If no hotpixel map output is available for this camera device, this will contain only
+ * <code>false</code>.</p>
+ * <p>ON is always supported on devices with the RAW capability.</p>
+ */
+ ACAMERA_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES = // byte[n]
+ ACAMERA_STATISTICS_INFO_START + 6,
+ /**
+ * <p>List of lens shading map output modes for ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE that
+ * are supported by this camera device.</p>
+ *
+ * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If no lens shading map output is available for this camera device, this key will
+ * contain only OFF.</p>
+ * <p>ON is always supported on devices with the RAW capability.
+ * LEGACY mode devices will always only support OFF.</p>
+ */
+ ACAMERA_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES = // byte[n]
+ ACAMERA_STATISTICS_INFO_START + 7,
+ ACAMERA_STATISTICS_INFO_END,
+
+ /**
+ * <p>Tonemapping / contrast / gamma curve for the blue
+ * channel, to use when ACAMERA_TONEMAP_MODE is
+ * CONTRAST_CURVE.</p>
+ *
+ * @see ACAMERA_TONEMAP_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
+ *
+ * @see ACAMERA_TONEMAP_CURVE_RED
+ */
+ ACAMERA_TONEMAP_CURVE_BLUE = // float[n*2]
+ ACAMERA_TONEMAP_START,
+ /**
+ * <p>Tonemapping / contrast / gamma curve for the green
+ * channel, to use when ACAMERA_TONEMAP_MODE is
+ * CONTRAST_CURVE.</p>
+ *
+ * @see ACAMERA_TONEMAP_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
+ *
+ * @see ACAMERA_TONEMAP_CURVE_RED
+ */
+ ACAMERA_TONEMAP_CURVE_GREEN = // float[n*2]
+ ACAMERA_TONEMAP_START + 1,
+ /**
+ * <p>Tonemapping / contrast / gamma curve for the red
+ * channel, to use when ACAMERA_TONEMAP_MODE is
+ * CONTRAST_CURVE.</p>
+ *
+ * @see ACAMERA_TONEMAP_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Each channel's curve is defined by an array of control points:</p>
+ * <pre><code>ACAMERA_TONEMAP_CURVE_RED =
+ * [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ]
+ * 2 <= N <= ACAMERA_TONEMAP_MAX_CURVE_POINTS</code></pre>
+ * <p>These are sorted in order of increasing <code>Pin</code>; it is
+ * required that input values 0.0 and 1.0 are included in the list to
+ * define a complete mapping. For input values between control points,
+ * the camera device must linearly interpolate between the control
+ * points.</p>
+ * <p>Each curve can have an independent number of points, and the number
+ * of points can be less than max (that is, the request doesn't have to
+ * always provide a curve with number of points equivalent to
+ * ACAMERA_TONEMAP_MAX_CURVE_POINTS).</p>
+ * <p>A few examples, and their corresponding graphical mappings; these
+ * only specify the red channel and the precision is limited to 4
+ * digits, for conciseness.</p>
+ * <p>Linear mapping:</p>
+ * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 0, 1.0, 1.0 ]
+ * </code></pre>
+ * <p><img alt="Linear mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p>
+ * <p>Invert mapping:</p>
+ * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 1.0, 1.0, 0 ]
+ * </code></pre>
+ * <p><img alt="Inverting mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p>
+ * <p>Gamma 1/2.2 mapping, with 16 control points:</p>
+ * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
+ * 0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812,
+ * 0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072,
+ * 0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685,
+ * 0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ]
+ * </code></pre>
+ * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p>
+ * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p>
+ * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
+ * 0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845,
+ * 0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130,
+ * 0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721,
+ * 0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ]
+ * </code></pre>
+ * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
+ *
+ * @see ACAMERA_TONEMAP_CURVE_RED
+ * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
+ */
+ ACAMERA_TONEMAP_CURVE_RED = // float[n*2]
+ ACAMERA_TONEMAP_START + 2,
+ /**
+ * <p>High-level global contrast/gamma/tonemapping control.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>When switching to an application-defined contrast curve by setting
+ * ACAMERA_TONEMAP_MODE to CONTRAST_CURVE, the curve is defined
+ * per-channel with a set of <code>(in, out)</code> points that specify the
+ * mapping from input high-bit-depth pixel value to the output
+ * low-bit-depth value. Since the actual pixel ranges of both input
+ * and output may change depending on the camera pipeline, the values
+ * are specified by normalized floating-point numbers.</p>
+ * <p>More-complex color mapping operations such as 3D color look-up
+ * tables, selective chroma enhancement, or other non-linear color
+ * transforms will be disabled when ACAMERA_TONEMAP_MODE is
+ * CONTRAST_CURVE.</p>
+ * <p>When using either FAST or HIGH_QUALITY, the camera device will
+ * emit its own tonemap curve in android.tonemap.curve.
+ * These values are always available, and as close as possible to the
+ * actually used nonlinear/nonglobal transforms.</p>
+ * <p>If a request is sent with CONTRAST_CURVE with the camera device's
+ * provided curve in FAST or HIGH_QUALITY, the image's tonemap will be
+ * roughly the same.</p>
+ *
+ * @see ACAMERA_TONEMAP_MODE
+ */
+ ACAMERA_TONEMAP_MODE = // byte (enum)
+ ACAMERA_TONEMAP_START + 3,
+ /**
+ * <p>Maximum number of supported points in the
+ * tonemap curve that can be used for android.tonemap.curve.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If the actual number of points provided by the application (in ACAMERA_TONEMAPCURVE_*) is
+ * less than this maximum, the camera device will resample the curve to its internal
+ * representation, using linear interpolation.</p>
+ * <p>The output curves in the result metadata may have a different number
+ * of points than the input curves, and will represent the actual
+ * hardware curves used as closely as possible when linearly interpolated.</p>
+ */
+ ACAMERA_TONEMAP_MAX_CURVE_POINTS = // int32
+ ACAMERA_TONEMAP_START + 4,
+ /**
+ * <p>List of tonemapping modes for ACAMERA_TONEMAP_MODE that are supported by this camera
+ * device.</p>
+ *
+ * @see ACAMERA_TONEMAP_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always contain
+ * at least one of below mode combinations:</p>
+ * <ul>
+ * <li>CONTRAST_CURVE, FAST and HIGH_QUALITY</li>
+ * <li>GAMMA_VALUE, PRESET_CURVE, FAST and HIGH_QUALITY</li>
+ * </ul>
+ * <p>This includes all FULL level devices.</p>
+ */
+ ACAMERA_TONEMAP_AVAILABLE_TONE_MAP_MODES = // byte[n]
+ ACAMERA_TONEMAP_START + 5,
+ /**
+ * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
+ * GAMMA_VALUE</p>
+ *
+ * @see ACAMERA_TONEMAP_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>The tonemap curve will be defined the following formula:
+ * * OUT = pow(IN, 1.0 / gamma)
+ * where IN and OUT is the input pixel value scaled to range [0.0, 1.0],
+ * pow is the power function and gamma is the gamma value specified by this
+ * key.</p>
+ * <p>The same curve will be applied to all color channels. The camera device
+ * may clip the input gamma value to its supported range. The actual applied
+ * value will be returned in capture result.</p>
+ * <p>The valid range of gamma value varies on different devices, but values
+ * within [1.0, 5.0] are guaranteed not to be clipped.</p>
+ */
+ ACAMERA_TONEMAP_GAMMA = // float
+ ACAMERA_TONEMAP_START + 6,
+ /**
+ * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
+ * PRESET_CURVE</p>
+ *
+ * @see ACAMERA_TONEMAP_MODE
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>The tonemap curve will be defined by specified standard.</p>
+ * <p>sRGB (approximated by 16 control points):</p>
+ * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
+ * <p>Rec. 709 (approximated by 16 control points):</p>
+ * <p><img alt="Rec. 709 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/rec709_tonemap.png" /></p>
+ * <p>Note that above figures show a 16 control points approximation of preset
+ * curves. Camera devices may apply a different approximation to the curve.</p>
+ */
+ ACAMERA_TONEMAP_PRESET_CURVE = // byte (enum)
+ ACAMERA_TONEMAP_START + 7,
+ ACAMERA_TONEMAP_END,
+
+ /**
+ * <p>Generally classifies the overall set of the camera device functionality.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>The supported hardware level is a high-level description of the camera device's
+ * capabilities, summarizing several capabilities into one field. Each level adds additional
+ * features to the previous one, and is always a strict superset of the previous level.
+ * The ordering is <code>LEGACY < LIMITED < FULL < LEVEL_3</code>.</p>
+ * <p>Starting from <code>LEVEL_3</code>, the level enumerations are guaranteed to be in increasing
+ * numerical value as well. To check if a given device is at least at a given hardware level,
+ * the following code snippet can be used:</p>
+ * <pre><code>// Returns true if the device supports the required hardware level, or better.
+ * boolean isHardwareLevelSupported(CameraCharacteristics c, int requiredLevel) {
+ * int deviceLevel = c.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
+ * if (deviceLevel == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
+ * return requiredLevel == deviceLevel;
+ * }
+ * // deviceLevel is not LEGACY, can use numerical sort
+ * return requiredLevel <= deviceLevel;
+ * }
+ * </code></pre>
+ * <p>At a high level, the levels are:</p>
+ * <ul>
+ * <li><code>LEGACY</code> devices operate in a backwards-compatibility mode for older
+ * Android devices, and have very limited capabilities.</li>
+ * <li><code>LIMITED</code> devices represent the
+ * baseline feature set, and may also include additional capabilities that are
+ * subsets of <code>FULL</code>.</li>
+ * <li><code>FULL</code> devices additionally support per-frame manual control of sensor, flash, lens and
+ * post-processing settings, and image capture at a high rate.</li>
+ * <li><code>LEVEL_3</code> devices additionally support YUV reprocessing and RAW image capture, along
+ * with additional output stream configurations.</li>
+ * </ul>
+ * <p>See the individual level enums for full descriptions of the supported capabilities. The
+ * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES entry describes the device's capabilities at a
+ * finer-grain level, if needed. In addition, many controls have their available settings or
+ * ranges defined in individual metadata tag entries in this document.</p>
+ * <p>Some features are not part of any particular hardware level or capability and must be
+ * queried separately. These include:</p>
+ * <ul>
+ * <li>Calibrated timestamps (ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME)</li>
+ * <li>Precision lens control (ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION <code>==</code> CALIBRATED)</li>
+ * <li>Face detection (ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES)</li>
+ * <li>Optical or electrical image stabilization
+ * (ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
+ * ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES)</li>
+ * </ul>
+ *
+ * @see ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES
+ * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
+ * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+ * @see ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES
+ */
+ ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL = // byte (enum)
+ ACAMERA_INFO_START,
+ ACAMERA_INFO_END,
+
+ /**
+ * <p>Whether black-level compensation is locked
+ * to its current values, or is free to vary.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * <li>ACaptureRequest</li>
+ * </ul>
+ *
+ * <p>Whether the black level offset was locked for this frame. Should be
+ * ON if ACAMERA_BLACK_LEVEL_LOCK was ON in the capture request, unless
+ * a change in other capture settings forced the camera device to
+ * perform a black level reset.</p>
+ *
+ * @see ACAMERA_BLACK_LEVEL_LOCK
+ */
+ ACAMERA_BLACK_LEVEL_LOCK = // byte (enum)
+ ACAMERA_BLACK_LEVEL_START,
+ ACAMERA_BLACK_LEVEL_END,
+
+ /**
+ * <p>The frame number corresponding to the last request
+ * with which the output result (metadata + buffers) has been fully
+ * synchronized.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+ * </ul>
+ *
+ * <p>When a request is submitted to the camera device, there is usually a
+ * delay of several frames before the controls get applied. A camera
+ * device may either choose to account for this delay by implementing a
+ * pipeline and carefully submit well-timed atomic control updates, or
+ * it may start streaming control changes that span over several frame
+ * boundaries.</p>
+ * <p>In the latter case, whenever a request's settings change relative to
+ * the previous submitted request, the full set of changes may take
+ * multiple frame durations to fully take effect. Some settings may
+ * take effect sooner (in less frame durations) than others.</p>
+ * <p>While a set of control changes are being propagated, this value
+ * will be CONVERGING.</p>
+ * <p>Once it is fully known that a set of control changes have been
+ * finished propagating, and the resulting updated control settings
+ * have been read back by the camera device, this value will be set
+ * to a non-negative frame number (corresponding to the request to
+ * which the results have synchronized to).</p>
+ * <p>Older camera device implementations may not have a way to detect
+ * when all camera controls have been applied, and will always set this
+ * value to UNKNOWN.</p>
+ * <p>FULL capability devices will always have this value set to the
+ * frame number of the request corresponding to this result.</p>
+ * <p><em>Further details</em>:</p>
+ * <ul>
+ * <li>Whenever a request differs from the last request, any future
+ * results not yet returned may have this value set to CONVERGING (this
+ * could include any in-progress captures not yet returned by the camera
+ * device, for more details see pipeline considerations below).</li>
+ * <li>Submitting a series of multiple requests that differ from the
+ * previous request (e.g. r1, r2, r3 s.t. r1 != r2 != r3)
+ * moves the new synchronization frame to the last non-repeating
+ * request (using the smallest frame number from the contiguous list of
+ * repeating requests).</li>
+ * <li>Submitting the same request repeatedly will not change this value
+ * to CONVERGING, if it was already a non-negative value.</li>
+ * <li>When this value changes to non-negative, that means that all of the
+ * metadata controls from the request have been applied, all of the
+ * metadata controls from the camera device have been read to the
+ * updated values (into the result), and all of the graphics buffers
+ * corresponding to this result are also synchronized to the request.</li>
+ * </ul>
+ * <p><em>Pipeline considerations</em>:</p>
+ * <p>Submitting a request with updated controls relative to the previously
+ * submitted requests may also invalidate the synchronization state
+ * of all the results corresponding to currently in-flight requests.</p>
+ * <p>In other words, results for this current request and up to
+ * ACAMERA_REQUEST_PIPELINE_MAX_DEPTH prior requests may have their
+ * ACAMERA_SYNC_FRAME_NUMBER change to CONVERGING.</p>
+ *
+ * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
+ * @see ACAMERA_SYNC_FRAME_NUMBER
+ */
+ ACAMERA_SYNC_FRAME_NUMBER = // int64 (enum)
+ ACAMERA_SYNC_START,
+ /**
+ * <p>The maximum number of frames that can occur after a request
+ * (different than the previous) has been submitted, and before the
+ * result's state becomes synchronized.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This defines the maximum distance (in number of metadata results),
+ * between the frame number of the request that has new controls to apply
+ * and the frame number of the result that has all the controls applied.</p>
+ * <p>In other words this acts as an upper boundary for how many frames
+ * must occur before the camera device knows for a fact that the new
+ * submitted camera settings have been applied in outgoing frames.</p>
+ */
+ ACAMERA_SYNC_MAX_LATENCY = // int32 (enum)
+ ACAMERA_SYNC_START + 1,
+ ACAMERA_SYNC_END,
+
+ /**
+ * <p>The available depth dataspace stream
+ * configurations that this camera device supports
+ * (i.e. format, width, height, output/input stream).</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>These are output stream configurations for use with
+ * dataSpace HAL_DATASPACE_DEPTH. The configurations are
+ * listed as <code>(format, width, height, input?)</code> tuples.</p>
+ * <p>Only devices that support depth output for at least
+ * the HAL_PIXEL_FORMAT_Y16 dense depth map may include
+ * this entry.</p>
+ * <p>A device that also supports the HAL_PIXEL_FORMAT_BLOB
+ * sparse depth point cloud must report a single entry for
+ * the format in this list as <code>(HAL_PIXEL_FORMAT_BLOB,
+ * android.depth.maxDepthSamples, 1, OUTPUT)</code> in addition to
+ * the entries for HAL_PIXEL_FORMAT_Y16.</p>
+ */
+ ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS = // int32[n*4] (enum)
+ ACAMERA_DEPTH_START + 1,
+ /**
+ * <p>This lists the minimum frame duration for each
+ * format/size combination for depth output formats.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>This should correspond to the frame duration when only that
+ * stream is active, with all processing (typically in android.*.mode)
+ * set to either OFF or FAST.</p>
+ * <p>When multiple streams are used in a request, the minimum frame
+ * duration will be max(individual stream min durations).</p>
+ * <p>The minimum frame duration of a stream (of a particular format, size)
+ * is the same regardless of whether the stream is input or output.</p>
+ * <p>See ACAMERA_SENSOR_FRAME_DURATION and
+ * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
+ * calculating the max frame rate.</p>
+ *
+ * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ */
+ ACAMERA_DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS = // int64[4*n]
+ ACAMERA_DEPTH_START + 2,
+ /**
+ * <p>This lists the maximum stall duration for each
+ * output format/size combination for depth streams.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>A stall duration is how much extra time would get added
+ * to the normal minimum frame duration for a repeating request
+ * that has streams with non-zero stall.</p>
+ * <p>This functions similarly to
+ * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for depth
+ * streams.</p>
+ * <p>All depth output stream formats may have a nonzero stall
+ * duration.</p>
+ *
+ * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+ */
+ ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS = // int64[4*n]
+ ACAMERA_DEPTH_START + 3,
+ /**
+ * <p>Indicates whether a capture request may target both a
+ * DEPTH16 / DEPTH_POINT_CLOUD output, and normal color outputs (such as
+ * YUV_420_888, JPEG, or RAW) simultaneously.</p>
+ *
+ * <p>This tag may appear in:</p>
+ * <ul>
+ * <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+ * </ul>
+ *
+ * <p>If TRUE, including both depth and color outputs in a single
+ * capture request is not supported. An application must interleave color
+ * and depth requests. If FALSE, a single request can target both types
+ * of output.</p>
+ * <p>Typically, this restriction exists on camera devices that
+ * need to emit a specific pattern or wavelength of light to
+ * measure depth values, which causes the color image to be
+ * corrupted during depth measurement.</p>
+ */
+ ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE = // byte (enum)
+ ACAMERA_DEPTH_START + 4,
+ ACAMERA_DEPTH_END,
+
+} acamera_metadata_tag_t;
+
+/**
+ * Enumeration definitions for the various entries that need them
+ */
+
+// ACAMERA_COLOR_CORRECTION_MODE
+typedef enum acamera_metadata_enum_acamera_color_correction_mode {
+ /**
+ * <p>Use the ACAMERA_COLOR_CORRECTION_TRANSFORM matrix
+ * and ACAMERA_COLOR_CORRECTION_GAINS to do color conversion.</p>
+ * <p>All advanced white balance adjustments (not specified
+ * by our white balance pipeline) must be disabled.</p>
+ * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+ * TRANSFORM_MATRIX is ignored. The camera device will override
+ * this value to either FAST or HIGH_QUALITY.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * @see ACAMERA_CONTROL_AWB_MODE
+ */
+ ACAMERA_COLOR_CORRECTION_MODE_TRANSFORM_MATRIX = 0,
+
+ /**
+ * <p>Color correction processing must not slow down
+ * capture rate relative to sensor raw output.</p>
+ * <p>Advanced white balance adjustments above and beyond
+ * the specified white balance pipeline may be applied.</p>
+ * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+ * the camera device uses the last frame's AWB values
+ * (or defaults if AWB has never been run).</p>
+ *
+ * @see ACAMERA_CONTROL_AWB_MODE
+ */
+ ACAMERA_COLOR_CORRECTION_MODE_FAST = 1,
+
+ /**
+ * <p>Color correction processing operates at improved
+ * quality but the capture rate might be reduced (relative to sensor
+ * raw output rate)</p>
+ * <p>Advanced white balance adjustments above and beyond
+ * the specified white balance pipeline may be applied.</p>
+ * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+ * the camera device uses the last frame's AWB values
+ * (or defaults if AWB has never been run).</p>
+ *
+ * @see ACAMERA_CONTROL_AWB_MODE
+ */
+ ACAMERA_COLOR_CORRECTION_MODE_HIGH_QUALITY = 2,
+
+} acamera_metadata_enum_android_color_correction_mode_t;
+
+// ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+typedef enum acamera_metadata_enum_acamera_color_correction_aberration_mode {
+ /**
+ * <p>No aberration correction is applied.</p>
+ */
+ ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_OFF = 0,
+
+ /**
+ * <p>Aberration correction will not slow down capture rate
+ * relative to sensor raw output.</p>
+ */
+ ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_FAST = 1,
+
+ /**
+ * <p>Aberration correction operates at improved quality but the capture rate might be
+ * reduced (relative to sensor raw output rate)</p>
+ */
+ ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY = 2,
+
+} acamera_metadata_enum_android_color_correction_aberration_mode_t;
+
+
+// ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+typedef enum acamera_metadata_enum_acamera_control_ae_antibanding_mode {
+ /**
+ * <p>The camera device will not adjust exposure duration to
+ * avoid banding problems.</p>
+ */
+ ACAMERA_CONTROL_AE_ANTIBANDING_MODE_OFF = 0,
+
+ /**
+ * <p>The camera device will adjust exposure duration to
+ * avoid banding problems with 50Hz illumination sources.</p>
+ */
+ ACAMERA_CONTROL_AE_ANTIBANDING_MODE_50HZ = 1,
+
+ /**
+ * <p>The camera device will adjust exposure duration to
+ * avoid banding problems with 60Hz illumination
+ * sources.</p>
+ */
+ ACAMERA_CONTROL_AE_ANTIBANDING_MODE_60HZ = 2,
+
+ /**
+ * <p>The camera device will automatically adapt its
+ * antibanding routine to the current illumination
+ * condition. This is the default mode if AUTO is
+ * available on given camera device.</p>
+ */
+ ACAMERA_CONTROL_AE_ANTIBANDING_MODE_AUTO = 3,
+
+} acamera_metadata_enum_android_control_ae_antibanding_mode_t;
+
+// ACAMERA_CONTROL_AE_LOCK
+typedef enum acamera_metadata_enum_acamera_control_ae_lock {
+ /**
+ * <p>Auto-exposure lock is disabled; the AE algorithm
+ * is free to update its parameters.</p>
+ */
+ ACAMERA_CONTROL_AE_LOCK_OFF = 0,
+
+ /**
+ * <p>Auto-exposure lock is enabled; the AE algorithm
+ * must not update the exposure and sensitivity parameters
+ * while the lock is active.</p>
+ * <p>ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION setting changes
+ * will still take effect while auto-exposure is locked.</p>
+ * <p>Some rare LEGACY devices may not support
+ * this, in which case the value will always be overridden to OFF.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+ */
+ ACAMERA_CONTROL_AE_LOCK_ON = 1,
+
+} acamera_metadata_enum_android_control_ae_lock_t;
+
+// ACAMERA_CONTROL_AE_MODE
+typedef enum acamera_metadata_enum_acamera_control_ae_mode {
+ /**
+ * <p>The camera device's autoexposure routine is disabled.</p>
+ * <p>The application-selected ACAMERA_SENSOR_EXPOSURE_TIME,
+ * ACAMERA_SENSOR_SENSITIVITY and
+ * ACAMERA_SENSOR_FRAME_DURATION are used by the camera
+ * device, along with ACAMERA_FLASH_* fields, if there's
+ * a flash unit for this camera device.</p>
+ * <p>Note that auto-white balance (AWB) and auto-focus (AF)
+ * behavior is device dependent when AE is in OFF mode.
+ * To have consistent behavior across different devices,
+ * it is recommended to either set AWB and AF to OFF mode
+ * or lock AWB and AF before setting AE to OFF.
+ * See ACAMERA_CONTROL_AWB_MODE, ACAMERA_CONTROL_AF_MODE,
+ * ACAMERA_CONTROL_AWB_LOCK, and ACAMERA_CONTROL_AF_TRIGGER
+ * for more details.</p>
+ * <p>LEGACY devices do not support the OFF mode and will
+ * override attempts to use this value to ON.</p>
+ *
+ * @see ACAMERA_CONTROL_AF_MODE
+ * @see ACAMERA_CONTROL_AF_TRIGGER
+ * @see ACAMERA_CONTROL_AWB_LOCK
+ * @see ACAMERA_CONTROL_AWB_MODE
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_CONTROL_AE_MODE_OFF = 0,
+
+ /**
+ * <p>The camera device's autoexposure routine is active,
+ * with no flash control.</p>
+ * <p>The application's values for
+ * ACAMERA_SENSOR_EXPOSURE_TIME,
+ * ACAMERA_SENSOR_SENSITIVITY, and
+ * ACAMERA_SENSOR_FRAME_DURATION are ignored. The
+ * application has control over the various
+ * ACAMERA_FLASH_* fields.</p>
+ *
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_CONTROL_AE_MODE_ON = 1,
+
+ /**
+ * <p>Like ON, except that the camera device also controls
+ * the camera's flash unit, firing it in low-light
+ * conditions.</p>
+ * <p>The flash may be fired during a precapture sequence
+ * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
+ * may be fired for captures for which the
+ * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
+ * STILL_CAPTURE</p>
+ *
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ */
+ ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH = 2,
+
+ /**
+ * <p>Like ON, except that the camera device also controls
+ * the camera's flash unit, always firing it for still
+ * captures.</p>
+ * <p>The flash may be fired during a precapture sequence
+ * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
+ * will always be fired for captures for which the
+ * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
+ * STILL_CAPTURE</p>
+ *
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ */
+ ACAMERA_CONTROL_AE_MODE_ON_ALWAYS_FLASH = 3,
+
+ /**
+ * <p>Like ON_AUTO_FLASH, but with automatic red eye
+ * reduction.</p>
+ * <p>If deemed necessary by the camera device, a red eye
+ * reduction flash will fire during the precapture
+ * sequence.</p>
+ */
+ ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE = 4,
+
+} acamera_metadata_enum_android_control_ae_mode_t;
+
+// ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+typedef enum acamera_metadata_enum_acamera_control_ae_precapture_trigger {
+ /**
+ * <p>The trigger is idle.</p>
+ */
+ ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_IDLE = 0,
+
+ /**
+ * <p>The precapture metering sequence will be started
+ * by the camera device.</p>
+ * <p>The exact effect of the precapture trigger depends on
+ * the current AE mode and state.</p>
+ */
+ ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_START = 1,
+
+ /**
+ * <p>The camera device will cancel any currently active or completed
+ * precapture metering sequence, the auto-exposure routine will return to its
+ * initial state.</p>
+ */
+ ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL = 2,
+
+} acamera_metadata_enum_android_control_ae_precapture_trigger_t;
+
+// ACAMERA_CONTROL_AF_MODE
+typedef enum acamera_metadata_enum_acamera_control_af_mode {
+ /**
+ * <p>The auto-focus routine does not control the lens;
+ * ACAMERA_LENS_FOCUS_DISTANCE is controlled by the
+ * application.</p>
+ *
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ */
+ ACAMERA_CONTROL_AF_MODE_OFF = 0,
+
+ /**
+ * <p>Basic automatic focus mode.</p>
+ * <p>In this mode, the lens does not move unless
+ * the autofocus trigger action is called. When that trigger
+ * is activated, AF will transition to ACTIVE_SCAN, then to
+ * the outcome of the scan (FOCUSED or NOT_FOCUSED).</p>
+ * <p>Always supported if lens is not fixed focus.</p>
+ * <p>Use ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE to determine if lens
+ * is fixed-focus.</p>
+ * <p>Triggering AF_CANCEL resets the lens position to default,
+ * and sets the AF state to INACTIVE.</p>
+ *
+ * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+ */
+ ACAMERA_CONTROL_AF_MODE_AUTO = 1,
+
+ /**
+ * <p>Close-up focusing mode.</p>
+ * <p>In this mode, the lens does not move unless the
+ * autofocus trigger action is called. When that trigger is
+ * activated, AF will transition to ACTIVE_SCAN, then to
+ * the outcome of the scan (FOCUSED or NOT_FOCUSED). This
+ * mode is optimized for focusing on objects very close to
+ * the camera.</p>
+ * <p>When that trigger is activated, AF will transition to
+ * ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
+ * NOT_FOCUSED). Triggering cancel AF resets the lens
+ * position to default, and sets the AF state to
+ * INACTIVE.</p>
+ */
+ ACAMERA_CONTROL_AF_MODE_MACRO = 2,
+
+ /**
+ * <p>In this mode, the AF algorithm modifies the lens
+ * position continually to attempt to provide a
+ * constantly-in-focus image stream.</p>
+ * <p>The focusing behavior should be suitable for good quality
+ * video recording; typically this means slower focus
+ * movement and no overshoots. When the AF trigger is not
+ * involved, the AF algorithm should start in INACTIVE state,
+ * and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
+ * states as appropriate. When the AF trigger is activated,
+ * the algorithm should immediately transition into
+ * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
+ * lens position until a cancel AF trigger is received.</p>
+ * <p>Once cancel is received, the algorithm should transition
+ * back to INACTIVE and resume passive scan. Note that this
+ * behavior is not identical to CONTINUOUS_PICTURE, since an
+ * ongoing PASSIVE_SCAN must immediately be
+ * canceled.</p>
+ */
+ ACAMERA_CONTROL_AF_MODE_CONTINUOUS_VIDEO = 3,
+
+ /**
+ * <p>In this mode, the AF algorithm modifies the lens
+ * position continually to attempt to provide a
+ * constantly-in-focus image stream.</p>
+ * <p>The focusing behavior should be suitable for still image
+ * capture; typically this means focusing as fast as
+ * possible. When the AF trigger is not involved, the AF
+ * algorithm should start in INACTIVE state, and then
+ * transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
+ * appropriate as it attempts to maintain focus. When the AF
+ * trigger is activated, the algorithm should finish its
+ * PASSIVE_SCAN if active, and then transition into
+ * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
+ * lens position until a cancel AF trigger is received.</p>
+ * <p>When the AF cancel trigger is activated, the algorithm
+ * should transition back to INACTIVE and then act as if it
+ * has just been started.</p>
+ */
+ ACAMERA_CONTROL_AF_MODE_CONTINUOUS_PICTURE = 4,
+
+ /**
+ * <p>Extended depth of field (digital focus) mode.</p>
+ * <p>The camera device will produce images with an extended
+ * depth of field automatically; no special focusing
+ * operations need to be done before taking a picture.</p>
+ * <p>AF triggers are ignored, and the AF state will always be
+ * INACTIVE.</p>
+ */
+ ACAMERA_CONTROL_AF_MODE_EDOF = 5,
+
+} acamera_metadata_enum_android_control_af_mode_t;
+
+// ACAMERA_CONTROL_AF_TRIGGER
+typedef enum acamera_metadata_enum_acamera_control_af_trigger {
+ /**
+ * <p>The trigger is idle.</p>
+ */
+ ACAMERA_CONTROL_AF_TRIGGER_IDLE = 0,
+
+ /**
+ * <p>Autofocus will trigger now.</p>
+ */
+ ACAMERA_CONTROL_AF_TRIGGER_START = 1,
+
+ /**
+ * <p>Autofocus will return to its initial
+ * state, and cancel any currently active trigger.</p>
+ */
+ ACAMERA_CONTROL_AF_TRIGGER_CANCEL = 2,
+
+} acamera_metadata_enum_android_control_af_trigger_t;
+
+// ACAMERA_CONTROL_AWB_LOCK
+typedef enum acamera_metadata_enum_acamera_control_awb_lock {
+ /**
+ * <p>Auto-white balance lock is disabled; the AWB
+ * algorithm is free to update its parameters if in AUTO
+ * mode.</p>
+ */
+ ACAMERA_CONTROL_AWB_LOCK_OFF = 0,
+
+ /**
+ * <p>Auto-white balance lock is enabled; the AWB
+ * algorithm will not update its parameters while the lock
+ * is active.</p>
+ */
+ ACAMERA_CONTROL_AWB_LOCK_ON = 1,
+
+} acamera_metadata_enum_android_control_awb_lock_t;
+
+// ACAMERA_CONTROL_AWB_MODE
+typedef enum acamera_metadata_enum_acamera_control_awb_mode {
+ /**
+ * <p>The camera device's auto-white balance routine is disabled.</p>
+ * <p>The application-selected color transform matrix
+ * (ACAMERA_COLOR_CORRECTION_TRANSFORM) and gains
+ * (ACAMERA_COLOR_CORRECTION_GAINS) are used by the camera
+ * device for manual white balance control.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_OFF = 0,
+
+ /**
+ * <p>The camera device's auto-white balance routine is active.</p>
+ * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+ * For devices that support the MANUAL_POST_PROCESSING capability, the
+ * values used by the camera device for the transform and gains
+ * will be available in the capture result for this request.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_AUTO = 1,
+
+ /**
+ * <p>The camera device's auto-white balance routine is disabled;
+ * the camera device uses incandescent light as the assumed scene
+ * illumination for white balance.</p>
+ * <p>While the exact white balance transforms are up to the
+ * camera device, they will approximately match the CIE
+ * standard illuminant A.</p>
+ * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+ * For devices that support the MANUAL_POST_PROCESSING capability, the
+ * values used by the camera device for the transform and gains
+ * will be available in the capture result for this request.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_INCANDESCENT = 2,
+
+ /**
+ * <p>The camera device's auto-white balance routine is disabled;
+ * the camera device uses fluorescent light as the assumed scene
+ * illumination for white balance.</p>
+ * <p>While the exact white balance transforms are up to the
+ * camera device, they will approximately match the CIE
+ * standard illuminant F2.</p>
+ * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+ * For devices that support the MANUAL_POST_PROCESSING capability, the
+ * values used by the camera device for the transform and gains
+ * will be available in the capture result for this request.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_FLUORESCENT = 3,
+
+ /**
+ * <p>The camera device's auto-white balance routine is disabled;
+ * the camera device uses warm fluorescent light as the assumed scene
+ * illumination for white balance.</p>
+ * <p>While the exact white balance transforms are up to the
+ * camera device, they will approximately match the CIE
+ * standard illuminant F4.</p>
+ * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+ * For devices that support the MANUAL_POST_PROCESSING capability, the
+ * values used by the camera device for the transform and gains
+ * will be available in the capture result for this request.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_WARM_FLUORESCENT = 4,
+
+ /**
+ * <p>The camera device's auto-white balance routine is disabled;
+ * the camera device uses daylight light as the assumed scene
+ * illumination for white balance.</p>
+ * <p>While the exact white balance transforms are up to the
+ * camera device, they will approximately match the CIE
+ * standard illuminant D65.</p>
+ * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+ * For devices that support the MANUAL_POST_PROCESSING capability, the
+ * values used by the camera device for the transform and gains
+ * will be available in the capture result for this request.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_DAYLIGHT = 5,
+
+ /**
+ * <p>The camera device's auto-white balance routine is disabled;
+ * the camera device uses cloudy daylight light as the assumed scene
+ * illumination for white balance.</p>
+ * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+ * For devices that support the MANUAL_POST_PROCESSING capability, the
+ * values used by the camera device for the transform and gains
+ * will be available in the capture result for this request.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT = 6,
+
+ /**
+ * <p>The camera device's auto-white balance routine is disabled;
+ * the camera device uses twilight light as the assumed scene
+ * illumination for white balance.</p>
+ * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+ * For devices that support the MANUAL_POST_PROCESSING capability, the
+ * values used by the camera device for the transform and gains
+ * will be available in the capture result for this request.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_TWILIGHT = 7,
+
+ /**
+ * <p>The camera device's auto-white balance routine is disabled;
+ * the camera device uses shade light as the assumed scene
+ * illumination for white balance.</p>
+ * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+ * For devices that support the MANUAL_POST_PROCESSING capability, the
+ * values used by the camera device for the transform and gains
+ * will be available in the capture result for this request.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ */
+ ACAMERA_CONTROL_AWB_MODE_SHADE = 8,
+
+} acamera_metadata_enum_android_control_awb_mode_t;
+
+// ACAMERA_CONTROL_CAPTURE_INTENT
+typedef enum acamera_metadata_enum_acamera_control_capture_intent {
+ /**
+ * <p>The goal of this request doesn't fall into the other
+ * categories. The camera device will default to preview-like
+ * behavior.</p>
+ */
+ ACAMERA_CONTROL_CAPTURE_INTENT_CUSTOM = 0,
+
+ /**
+ * <p>This request is for a preview-like use case.</p>
+ * <p>The precapture trigger may be used to start off a metering
+ * w/flash sequence.</p>
+ */
+ ACAMERA_CONTROL_CAPTURE_INTENT_PREVIEW = 1,
+
+ /**
+ * <p>This request is for a still capture-type
+ * use case.</p>
+ * <p>If the flash unit is under automatic control, it may fire as needed.</p>
+ */
+ ACAMERA_CONTROL_CAPTURE_INTENT_STILL_CAPTURE = 2,
+
+ /**
+ * <p>This request is for a video recording
+ * use case.</p>
+ */
+ ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_RECORD = 3,
+
+ /**
+ * <p>This request is for a video snapshot (still
+ * image while recording video) use case.</p>
+ * <p>The camera device should take the highest-quality image
+ * possible (given the other settings) without disrupting the
+ * frame rate of video recording. </p>
+ */
+ ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT = 4,
+
+ /**
+ * <p>This request is for a ZSL usecase; the
+ * application will stream full-resolution images and
+ * reprocess one or several later for a final
+ * capture.</p>
+ */
+ ACAMERA_CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG = 5,
+
+ /**
+ * <p>This request is for manual capture use case where
+ * the applications want to directly control the capture parameters.</p>
+ * <p>For example, the application may wish to manually control
+ * ACAMERA_SENSOR_EXPOSURE_TIME, ACAMERA_SENSOR_SENSITIVITY, etc.</p>
+ *
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_CONTROL_CAPTURE_INTENT_MANUAL = 6,
+
+} acamera_metadata_enum_android_control_capture_intent_t;
+
+// ACAMERA_CONTROL_EFFECT_MODE
+typedef enum acamera_metadata_enum_acamera_control_effect_mode {
+ /**
+ * <p>No color effect will be applied.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_OFF = 0,
+
+ /**
+ * <p>A "monocolor" effect where the image is mapped into
+ * a single color.</p>
+ * <p>This will typically be grayscale.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_MONO = 1,
+
+ /**
+ * <p>A "photo-negative" effect where the image's colors
+ * are inverted.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_NEGATIVE = 2,
+
+ /**
+ * <p>A "solarisation" effect (Sabattier effect) where the
+ * image is wholly or partially reversed in
+ * tone.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_SOLARIZE = 3,
+
+ /**
+ * <p>A "sepia" effect where the image is mapped into warm
+ * gray, red, and brown tones.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_SEPIA = 4,
+
+ /**
+ * <p>A "posterization" effect where the image uses
+ * discrete regions of tone rather than a continuous
+ * gradient of tones.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_POSTERIZE = 5,
+
+ /**
+ * <p>A "whiteboard" effect where the image is typically displayed
+ * as regions of white, with black or grey details.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_WHITEBOARD = 6,
+
+ /**
+ * <p>A "blackboard" effect where the image is typically displayed
+ * as regions of black, with white or grey details.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_BLACKBOARD = 7,
+
+ /**
+ * <p>An "aqua" effect where a blue hue is added to the image.</p>
+ */
+ ACAMERA_CONTROL_EFFECT_MODE_AQUA = 8,
+
+} acamera_metadata_enum_android_control_effect_mode_t;
+
+// ACAMERA_CONTROL_MODE
+typedef enum acamera_metadata_enum_acamera_control_mode {
+ /**
+ * <p>Full application control of pipeline.</p>
+ * <p>All control by the device's metering and focusing (3A)
+ * routines is disabled, and no other settings in
+ * ACAMERA_CONTROL_* have any effect, except that
+ * ACAMERA_CONTROL_CAPTURE_INTENT may be used by the camera
+ * device to select post-processing values for processing
+ * blocks that do not allow for manual control, or are not
+ * exposed by the camera API.</p>
+ * <p>However, the camera device's 3A routines may continue to
+ * collect statistics and update their internal state so that
+ * when control is switched to AUTO mode, good control values
+ * can be immediately applied.</p>
+ *
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ */
+ ACAMERA_CONTROL_MODE_OFF = 0,
+
+ /**
+ * <p>Use settings for each individual 3A routine.</p>
+ * <p>Manual control of capture parameters is disabled. All
+ * controls in ACAMERA_CONTROL_* besides sceneMode take
+ * effect.</p>
+ */
+ ACAMERA_CONTROL_MODE_AUTO = 1,
+
+ /**
+ * <p>Use a specific scene mode.</p>
+ * <p>Enabling this disables control.aeMode, control.awbMode and
+ * control.afMode controls; the camera device will ignore
+ * those settings while USE_SCENE_MODE is active (except for
+ * FACE_PRIORITY scene mode). Other control entries are still active.
+ * This setting can only be used if scene mode is supported (i.e.
+ * ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
+ * contain some modes other than DISABLED).</p>
+ *
+ * @see ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
+ */
+ ACAMERA_CONTROL_MODE_USE_SCENE_MODE = 2,
+
+ /**
+ * <p>Same as OFF mode, except that this capture will not be
+ * used by camera device background auto-exposure, auto-white balance and
+ * auto-focus algorithms (3A) to update their statistics.</p>
+ * <p>Specifically, the 3A routines are locked to the last
+ * values set from a request with AUTO, OFF, or
+ * USE_SCENE_MODE, and any statistics or state updates
+ * collected from manual captures with OFF_KEEP_STATE will be
+ * discarded by the camera device.</p>
+ */
+ ACAMERA_CONTROL_MODE_OFF_KEEP_STATE = 3,
+
+} acamera_metadata_enum_android_control_mode_t;
+
+// ACAMERA_CONTROL_SCENE_MODE
+typedef enum acamera_metadata_enum_acamera_control_scene_mode {
+ /**
+ * <p>Indicates that no scene modes are set for a given capture request.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_DISABLED = 0,
+
+ /**
+ * <p>If face detection support exists, use face
+ * detection data for auto-focus, auto-white balance, and
+ * auto-exposure routines.</p>
+ * <p>If face detection statistics are disabled
+ * (i.e. ACAMERA_STATISTICS_FACE_DETECT_MODE is set to OFF),
+ * this should still operate correctly (but will not return
+ * face detection statistics to the framework).</p>
+ * <p>Unlike the other scene modes, ACAMERA_CONTROL_AE_MODE,
+ * ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
+ * remain active when FACE_PRIORITY is set.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AF_MODE
+ * @see ACAMERA_CONTROL_AWB_MODE
+ * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+ */
+ ACAMERA_CONTROL_SCENE_MODE_FACE_PRIORITY = 1,
+
+ /**
+ * <p>Optimized for photos of quickly moving objects.</p>
+ * <p>Similar to SPORTS.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_ACTION = 2,
+
+ /**
+ * <p>Optimized for still photos of people.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_PORTRAIT = 3,
+
+ /**
+ * <p>Optimized for photos of distant macroscopic objects.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_LANDSCAPE = 4,
+
+ /**
+ * <p>Optimized for low-light settings.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_NIGHT = 5,
+
+ /**
+ * <p>Optimized for still photos of people in low-light
+ * settings.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_NIGHT_PORTRAIT = 6,
+
+ /**
+ * <p>Optimized for dim, indoor settings where flash must
+ * remain off.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_THEATRE = 7,
+
+ /**
+ * <p>Optimized for bright, outdoor beach settings.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_BEACH = 8,
+
+ /**
+ * <p>Optimized for bright, outdoor settings containing snow.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_SNOW = 9,
+
+ /**
+ * <p>Optimized for scenes of the setting sun.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_SUNSET = 10,
+
+ /**
+ * <p>Optimized to avoid blurry photos due to small amounts of
+ * device motion (for example: due to hand shake).</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_STEADYPHOTO = 11,
+
+ /**
+ * <p>Optimized for nighttime photos of fireworks.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_FIREWORKS = 12,
+
+ /**
+ * <p>Optimized for photos of quickly moving people.</p>
+ * <p>Similar to ACTION.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_SPORTS = 13,
+
+ /**
+ * <p>Optimized for dim, indoor settings with multiple moving
+ * people.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_PARTY = 14,
+
+ /**
+ * <p>Optimized for dim settings where the main light source
+ * is a flame.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_CANDLELIGHT = 15,
+
+ /**
+ * <p>Optimized for accurately capturing a photo of barcode
+ * for use by camera applications that wish to read the
+ * barcode value.</p>
+ */
+ ACAMERA_CONTROL_SCENE_MODE_BARCODE = 16,
+
+ /**
+ * <p>Turn on a device-specific high dynamic range (HDR) mode.</p>
+ * <p>In this scene mode, the camera device captures images
+ * that keep a larger range of scene illumination levels
+ * visible in the final image. For example, when taking a
+ * picture of a object in front of a bright window, both
+ * the object and the scene through the window may be
+ * visible when using HDR mode, while in normal AUTO mode,
+ * one or the other may be poorly exposed. As a tradeoff,
+ * HDR mode generally takes much longer to capture a single
+ * image, has no user control, and may have other artifacts
+ * depending on the HDR method used.</p>
+ * <p>Therefore, HDR captures operate at a much slower rate
+ * than regular captures.</p>
+ * <p>In this mode, on LIMITED or FULL devices, when a request
+ * is made with a ACAMERA_CONTROL_CAPTURE_INTENT of
+ * STILL_CAPTURE, the camera device will capture an image
+ * using a high dynamic range capture technique. On LEGACY
+ * devices, captures that target a JPEG-format output will
+ * be captured with HDR, and the capture intent is not
+ * relevant.</p>
+ * <p>The HDR capture may involve the device capturing a burst
+ * of images internally and combining them into one, or it
+ * may involve the device using specialized high dynamic
+ * range capture hardware. In all cases, a single image is
+ * produced in response to a capture request submitted
+ * while in HDR mode.</p>
+ * <p>Since substantial post-processing is generally needed to
+ * produce an HDR image, only YUV, PRIVATE, and JPEG
+ * outputs are supported for LIMITED/FULL device HDR
+ * captures, and only JPEG outputs are supported for LEGACY
+ * HDR captures. Using a RAW output for HDR capture is not
+ * supported.</p>
+ * <p>Some devices may also support always-on HDR, which
+ * applies HDR processing at full frame rate. For these
+ * devices, intents other than STILL_CAPTURE will also
+ * produce an HDR output with no frame rate impact compared
+ * to normal operation, though the quality may be lower
+ * than for STILL_CAPTURE intents.</p>
+ * <p>If SCENE_MODE_HDR is used with unsupported output types
+ * or capture intents, the images captured will be as if
+ * the SCENE_MODE was not enabled at all.</p>
+ *
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ */
+ ACAMERA_CONTROL_SCENE_MODE_HDR = 18,
+
+} acamera_metadata_enum_android_control_scene_mode_t;
+
+// ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+typedef enum acamera_metadata_enum_acamera_control_video_stabilization_mode {
+ /**
+ * <p>Video stabilization is disabled.</p>
+ */
+ ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_OFF = 0,
+
+ /**
+ * <p>Video stabilization is enabled.</p>
+ */
+ ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_ON = 1,
+
+} acamera_metadata_enum_android_control_video_stabilization_mode_t;
+
+// ACAMERA_CONTROL_AE_STATE
+typedef enum acamera_metadata_enum_acamera_control_ae_state {
+ /**
+ * <p>AE is off or recently reset.</p>
+ * <p>When a camera device is opened, it starts in
+ * this state. This is a transient state, the camera device may skip reporting
+ * this state in capture result.</p>
+ */
+ ACAMERA_CONTROL_AE_STATE_INACTIVE = 0,
+
+ /**
+ * <p>AE doesn't yet have a good set of control values
+ * for the current scene.</p>
+ * <p>This is a transient state, the camera device may skip
+ * reporting this state in capture result.</p>
+ */
+ ACAMERA_CONTROL_AE_STATE_SEARCHING = 1,
+
+ /**
+ * <p>AE has a good set of control values for the
+ * current scene.</p>
+ */
+ ACAMERA_CONTROL_AE_STATE_CONVERGED = 2,
+
+ /**
+ * <p>AE has been locked.</p>
+ */
+ ACAMERA_CONTROL_AE_STATE_LOCKED = 3,
+
+ /**
+ * <p>AE has a good set of control values, but flash
+ * needs to be fired for good quality still
+ * capture.</p>
+ */
+ ACAMERA_CONTROL_AE_STATE_FLASH_REQUIRED = 4,
+
+ /**
+ * <p>AE has been asked to do a precapture sequence
+ * and is currently executing it.</p>
+ * <p>Precapture can be triggered through setting
+ * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to START. Currently
+ * active and completed (if it causes camera device internal AE lock) precapture
+ * metering sequence can be canceled through setting
+ * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to CANCEL.</p>
+ * <p>Once PRECAPTURE completes, AE will transition to CONVERGED
+ * or FLASH_REQUIRED as appropriate. This is a transient
+ * state, the camera device may skip reporting this state in
+ * capture result.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ */
+ ACAMERA_CONTROL_AE_STATE_PRECAPTURE = 5,
+
+} acamera_metadata_enum_android_control_ae_state_t;
+
+// ACAMERA_CONTROL_AF_STATE
+typedef enum acamera_metadata_enum_acamera_control_af_state {
+ /**
+ * <p>AF is off or has not yet tried to scan/been asked
+ * to scan.</p>
+ * <p>When a camera device is opened, it starts in this
+ * state. This is a transient state, the camera device may
+ * skip reporting this state in capture
+ * result.</p>
+ */
+ ACAMERA_CONTROL_AF_STATE_INACTIVE = 0,
+
+ /**
+ * <p>AF is currently performing an AF scan initiated the
+ * camera device in a continuous autofocus mode.</p>
+ * <p>Only used by CONTINUOUS_* AF modes. This is a transient
+ * state, the camera device may skip reporting this state in
+ * capture result.</p>
+ */
+ ACAMERA_CONTROL_AF_STATE_PASSIVE_SCAN = 1,
+
+ /**
+ * <p>AF currently believes it is in focus, but may
+ * restart scanning at any time.</p>
+ * <p>Only used by CONTINUOUS_* AF modes. This is a transient
+ * state, the camera device may skip reporting this state in
+ * capture result.</p>
+ */
+ ACAMERA_CONTROL_AF_STATE_PASSIVE_FOCUSED = 2,
+
+ /**
+ * <p>AF is performing an AF scan because it was
+ * triggered by AF trigger.</p>
+ * <p>Only used by AUTO or MACRO AF modes. This is a transient
+ * state, the camera device may skip reporting this state in
+ * capture result.</p>
+ */
+ ACAMERA_CONTROL_AF_STATE_ACTIVE_SCAN = 3,
+
+ /**
+ * <p>AF believes it is focused correctly and has locked
+ * focus.</p>
+ * <p>This state is reached only after an explicit START AF trigger has been
+ * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus has been obtained.</p>
+ * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
+ * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
+ *
+ * @see ACAMERA_CONTROL_AF_MODE
+ * @see ACAMERA_CONTROL_AF_TRIGGER
+ */
+ ACAMERA_CONTROL_AF_STATE_FOCUSED_LOCKED = 4,
+
+ /**
+ * <p>AF has failed to focus successfully and has locked
+ * focus.</p>
+ * <p>This state is reached only after an explicit START AF trigger has been
+ * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus cannot be obtained.</p>
+ * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
+ * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
+ *
+ * @see ACAMERA_CONTROL_AF_MODE
+ * @see ACAMERA_CONTROL_AF_TRIGGER
+ */
+ ACAMERA_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED = 5,
+
+ /**
+ * <p>AF finished a passive scan without finding focus,
+ * and may restart scanning at any time.</p>
+ * <p>Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
+ * device may skip reporting this state in capture result.</p>
+ * <p>LEGACY camera devices do not support this state. When a passive
+ * scan has finished, it will always go to PASSIVE_FOCUSED.</p>
+ */
+ ACAMERA_CONTROL_AF_STATE_PASSIVE_UNFOCUSED = 6,
+
+} acamera_metadata_enum_android_control_af_state_t;
+
+// ACAMERA_CONTROL_AWB_STATE
+typedef enum acamera_metadata_enum_acamera_control_awb_state {
+ /**
+ * <p>AWB is not in auto mode, or has not yet started metering.</p>
+ * <p>When a camera device is opened, it starts in this
+ * state. This is a transient state, the camera device may
+ * skip reporting this state in capture
+ * result.</p>
+ */
+ ACAMERA_CONTROL_AWB_STATE_INACTIVE = 0,
+
+ /**
+ * <p>AWB doesn't yet have a good set of control
+ * values for the current scene.</p>
+ * <p>This is a transient state, the camera device
+ * may skip reporting this state in capture result.</p>
+ */
+ ACAMERA_CONTROL_AWB_STATE_SEARCHING = 1,
+
+ /**
+ * <p>AWB has a good set of control values for the
+ * current scene.</p>
+ */
+ ACAMERA_CONTROL_AWB_STATE_CONVERGED = 2,
+
+ /**
+ * <p>AWB has been locked.</p>
+ */
+ ACAMERA_CONTROL_AWB_STATE_LOCKED = 3,
+
+} acamera_metadata_enum_android_control_awb_state_t;
+
+// ACAMERA_CONTROL_AE_LOCK_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_control_ae_lock_available {
+ ACAMERA_CONTROL_AE_LOCK_AVAILABLE_FALSE = 0,
+
+ ACAMERA_CONTROL_AE_LOCK_AVAILABLE_TRUE = 1,
+
+} acamera_metadata_enum_android_control_ae_lock_available_t;
+
+// ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_control_awb_lock_available {
+ ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_FALSE = 0,
+
+ ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_TRUE = 1,
+
+} acamera_metadata_enum_android_control_awb_lock_available_t;
+
+// ACAMERA_CONTROL_ENABLE_ZSL
+typedef enum acamera_metadata_enum_acamera_control_enable_zsl {
+ /**
+ * <p>Requests with ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE must be captured
+ * after previous requests.</p>
+ *
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ */
+ ACAMERA_CONTROL_ENABLE_ZSL_FALSE = 0,
+
+ /**
+ * <p>Requests with ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE may or may not be
+ * captured before previous requests.</p>
+ *
+ * @see ACAMERA_CONTROL_CAPTURE_INTENT
+ */
+ ACAMERA_CONTROL_ENABLE_ZSL_TRUE = 1,
+
+} acamera_metadata_enum_android_control_enable_zsl_t;
+
+
+
+// ACAMERA_EDGE_MODE
+typedef enum acamera_metadata_enum_acamera_edge_mode {
+ /**
+ * <p>No edge enhancement is applied.</p>
+ */
+ ACAMERA_EDGE_MODE_OFF = 0,
+
+ /**
+ * <p>Apply edge enhancement at a quality level that does not slow down frame rate
+ * relative to sensor output. It may be the same as OFF if edge enhancement will
+ * slow down frame rate relative to sensor.</p>
+ */
+ ACAMERA_EDGE_MODE_FAST = 1,
+
+ /**
+ * <p>Apply high-quality edge enhancement, at a cost of possibly reduced output frame rate.</p>
+ */
+ ACAMERA_EDGE_MODE_HIGH_QUALITY = 2,
+
+ /**
+ * <p>Edge enhancement is applied at different levels for different output streams,
+ * based on resolution. Streams at maximum recording resolution (see {@link
+ * ACameraDevice_createCaptureSession}) or below have
+ * edge enhancement applied, while higher-resolution streams have no edge enhancement
+ * applied. The level of edge enhancement for low-resolution streams is tuned so that
+ * frame rate is not impacted, and the quality is equal to or better than FAST (since it
+ * is only applied to lower-resolution outputs, quality may improve from FAST).</p>
+ * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
+ * with YUV or PRIVATE reprocessing, where the application continuously captures
+ * high-resolution intermediate buffers into a circular buffer, from which a final image is
+ * produced via reprocessing when a user takes a picture. For such a use case, the
+ * high-resolution buffers must not have edge enhancement applied to maximize efficiency of
+ * preview and to avoid double-applying enhancement when reprocessed, while low-resolution
+ * buffers (used for recording or preview, generally) need edge enhancement applied for
+ * reasonable preview quality.</p>
+ * <p>This mode is guaranteed to be supported by devices that support either the
+ * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
+ * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
+ * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
+ *
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ */
+ ACAMERA_EDGE_MODE_ZERO_SHUTTER_LAG = 3,
+
+} acamera_metadata_enum_android_edge_mode_t;
+
+
+// ACAMERA_FLASH_MODE
+typedef enum acamera_metadata_enum_acamera_flash_mode {
+ /**
+ * <p>Do not fire the flash for this capture.</p>
+ */
+ ACAMERA_FLASH_MODE_OFF = 0,
+
+ /**
+ * <p>If the flash is available and charged, fire flash
+ * for this capture.</p>
+ */
+ ACAMERA_FLASH_MODE_SINGLE = 1,
+
+ /**
+ * <p>Transition flash to continuously on.</p>
+ */
+ ACAMERA_FLASH_MODE_TORCH = 2,
+
+} acamera_metadata_enum_android_flash_mode_t;
+
+// ACAMERA_FLASH_STATE
+typedef enum acamera_metadata_enum_acamera_flash_state {
+ /**
+ * <p>No flash on camera.</p>
+ */
+ ACAMERA_FLASH_STATE_UNAVAILABLE = 0,
+
+ /**
+ * <p>Flash is charging and cannot be fired.</p>
+ */
+ ACAMERA_FLASH_STATE_CHARGING = 1,
+
+ /**
+ * <p>Flash is ready to fire.</p>
+ */
+ ACAMERA_FLASH_STATE_READY = 2,
+
+ /**
+ * <p>Flash fired for this capture.</p>
+ */
+ ACAMERA_FLASH_STATE_FIRED = 3,
+
+ /**
+ * <p>Flash partially illuminated this frame.</p>
+ * <p>This is usually due to the next or previous frame having
+ * the flash fire, and the flash spilling into this capture
+ * due to hardware limitations.</p>
+ */
+ ACAMERA_FLASH_STATE_PARTIAL = 4,
+
+} acamera_metadata_enum_android_flash_state_t;
+
+
+// ACAMERA_FLASH_INFO_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_flash_info_available {
+ ACAMERA_FLASH_INFO_AVAILABLE_FALSE = 0,
+
+ ACAMERA_FLASH_INFO_AVAILABLE_TRUE = 1,
+
+} acamera_metadata_enum_android_flash_info_available_t;
+
+
+// ACAMERA_HOT_PIXEL_MODE
+typedef enum acamera_metadata_enum_acamera_hot_pixel_mode {
+ /**
+ * <p>No hot pixel correction is applied.</p>
+ * <p>The frame rate must not be reduced relative to sensor raw output
+ * for this option.</p>
+ * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+ *
+ * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+ */
+ ACAMERA_HOT_PIXEL_MODE_OFF = 0,
+
+ /**
+ * <p>Hot pixel correction is applied, without reducing frame
+ * rate relative to sensor raw output.</p>
+ * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+ *
+ * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+ */
+ ACAMERA_HOT_PIXEL_MODE_FAST = 1,
+
+ /**
+ * <p>High-quality hot pixel correction is applied, at a cost
+ * of possibly reduced frame rate relative to sensor raw output.</p>
+ * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+ *
+ * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+ */
+ ACAMERA_HOT_PIXEL_MODE_HIGH_QUALITY = 2,
+
+} acamera_metadata_enum_android_hot_pixel_mode_t;
+
+
+
+// ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+typedef enum acamera_metadata_enum_acamera_lens_optical_stabilization_mode {
+ /**
+ * <p>Optical stabilization is unavailable.</p>
+ */
+ ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_OFF = 0,
+
+ /**
+ * <p>Optical stabilization is enabled.</p>
+ */
+ ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_ON = 1,
+
+} acamera_metadata_enum_android_lens_optical_stabilization_mode_t;
+
+// ACAMERA_LENS_FACING
+typedef enum acamera_metadata_enum_acamera_lens_facing {
+ /**
+ * <p>The camera device faces the same direction as the device's screen.</p>
+ */
+ ACAMERA_LENS_FACING_FRONT = 0,
+
+ /**
+ * <p>The camera device faces the opposite direction as the device's screen.</p>
+ */
+ ACAMERA_LENS_FACING_BACK = 1,
+
+ /**
+ * <p>The camera device is an external camera, and has no fixed facing relative to the
+ * device's screen.</p>
+ */
+ ACAMERA_LENS_FACING_EXTERNAL = 2,
+
+} acamera_metadata_enum_android_lens_facing_t;
+
+// ACAMERA_LENS_STATE
+typedef enum acamera_metadata_enum_acamera_lens_state {
+ /**
+ * <p>The lens parameters (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+ * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE) are not changing.</p>
+ *
+ * @see ACAMERA_LENS_APERTURE
+ * @see ACAMERA_LENS_FILTER_DENSITY
+ * @see ACAMERA_LENS_FOCAL_LENGTH
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ */
+ ACAMERA_LENS_STATE_STATIONARY = 0,
+
+ /**
+ * <p>One or several of the lens parameters
+ * (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+ * ACAMERA_LENS_FILTER_DENSITY or ACAMERA_LENS_APERTURE) is
+ * currently changing.</p>
+ *
+ * @see ACAMERA_LENS_APERTURE
+ * @see ACAMERA_LENS_FILTER_DENSITY
+ * @see ACAMERA_LENS_FOCAL_LENGTH
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ */
+ ACAMERA_LENS_STATE_MOVING = 1,
+
+} acamera_metadata_enum_android_lens_state_t;
+
+
+// ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+typedef enum acamera_metadata_enum_acamera_lens_info_focus_distance_calibration {
+ /**
+ * <p>The lens focus distance is not accurate, and the units used for
+ * ACAMERA_LENS_FOCUS_DISTANCE do not correspond to any physical units.</p>
+ * <p>Setting the lens to the same focus distance on separate occasions may
+ * result in a different real focus distance, depending on factors such
+ * as the orientation of the device, the age of the focusing mechanism,
+ * and the device temperature. The focus distance value will still be
+ * in the range of <code>[0, ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE]</code>, where 0
+ * represents the farthest focus.</p>
+ *
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+ */
+ ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED = 0,
+
+ /**
+ * <p>The lens focus distance is measured in diopters.</p>
+ * <p>However, setting the lens to the same focus distance
+ * on separate occasions may result in a different real
+ * focus distance, depending on factors such as the
+ * orientation of the device, the age of the focusing
+ * mechanism, and the device temperature.</p>
+ */
+ ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE = 1,
+
+ /**
+ * <p>The lens focus distance is measured in diopters, and
+ * is calibrated.</p>
+ * <p>The lens mechanism is calibrated so that setting the
+ * same focus distance is repeatable on multiple
+ * occasions with good accuracy, and the focus distance
+ * corresponds to the real physical distance to the plane
+ * of best focus.</p>
+ */
+ ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED = 2,
+
+} acamera_metadata_enum_android_lens_info_focus_distance_calibration_t;
+
+
+// ACAMERA_NOISE_REDUCTION_MODE
+typedef enum acamera_metadata_enum_acamera_noise_reduction_mode {
+ /**
+ * <p>No noise reduction is applied.</p>
+ */
+ ACAMERA_NOISE_REDUCTION_MODE_OFF = 0,
+
+ /**
+ * <p>Noise reduction is applied without reducing frame rate relative to sensor
+ * output. It may be the same as OFF if noise reduction will reduce frame rate
+ * relative to sensor.</p>
+ */
+ ACAMERA_NOISE_REDUCTION_MODE_FAST = 1,
+
+ /**
+ * <p>High-quality noise reduction is applied, at the cost of possibly reduced frame
+ * rate relative to sensor output.</p>
+ */
+ ACAMERA_NOISE_REDUCTION_MODE_HIGH_QUALITY = 2,
+
+ /**
+ * <p>MINIMAL noise reduction is applied without reducing frame rate relative to
+ * sensor output. </p>
+ */
+ ACAMERA_NOISE_REDUCTION_MODE_MINIMAL = 3,
+
+ /**
+ * <p>Noise reduction is applied at different levels for different output streams,
+ * based on resolution. Streams at maximum recording resolution (see {@link
+ * ACameraDevice_createCaptureSession}) or below have noise
+ * reduction applied, while higher-resolution streams have MINIMAL (if supported) or no
+ * noise reduction applied (if MINIMAL is not supported.) The degree of noise reduction
+ * for low-resolution streams is tuned so that frame rate is not impacted, and the quality
+ * is equal to or better than FAST (since it is only applied to lower-resolution outputs,
+ * quality may improve from FAST).</p>
+ * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
+ * with YUV or PRIVATE reprocessing, where the application continuously captures
+ * high-resolution intermediate buffers into a circular buffer, from which a final image is
+ * produced via reprocessing when a user takes a picture. For such a use case, the
+ * high-resolution buffers must not have noise reduction applied to maximize efficiency of
+ * preview and to avoid over-applying noise filtering when reprocessing, while
+ * low-resolution buffers (used for recording or preview, generally) need noise reduction
+ * applied for reasonable preview quality.</p>
+ * <p>This mode is guaranteed to be supported by devices that support either the
+ * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
+ * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
+ * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
+ *
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ */
+ ACAMERA_NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG = 4,
+
+} acamera_metadata_enum_android_noise_reduction_mode_t;
+
+
+
+// ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+typedef enum acamera_metadata_enum_acamera_request_available_capabilities {
+ /**
+ * <p>The minimal set of capabilities that every camera
+ * device (regardless of ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL)
+ * supports.</p>
+ * <p>This capability is listed by all normal devices, and
+ * indicates that the camera device has a feature set
+ * that's comparable to the baseline requirements for the
+ * older android.hardware.Camera API.</p>
+ * <p>Devices with the DEPTH_OUTPUT capability might not list this
+ * capability, indicating that they support only depth measurement,
+ * not standard color output.</p>
+ *
+ * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+ */
+ ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE = 0,
+
+ /**
+ * <p>The camera device can be manually controlled (3A algorithms such
+ * as auto-exposure, and auto-focus can be bypassed).
+ * The camera device supports basic manual control of the sensor image
+ * acquisition related stages. This means the following controls are
+ * guaranteed to be supported:</p>
+ * <ul>
+ * <li>Manual frame duration control<ul>
+ * <li>ACAMERA_SENSOR_FRAME_DURATION</li>
+ * <li>ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
+ * </ul>
+ * </li>
+ * <li>Manual exposure control<ul>
+ * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
+ * <li>ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
+ * </ul>
+ * </li>
+ * <li>Manual sensitivity control<ul>
+ * <li>ACAMERA_SENSOR_SENSITIVITY</li>
+ * <li>ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE</li>
+ * </ul>
+ * </li>
+ * <li>Manual lens control (if the lens is adjustable)<ul>
+ * <li>ACAMERA_LENS_*</li>
+ * </ul>
+ * </li>
+ * <li>Manual flash control (if a flash unit is present)<ul>
+ * <li>ACAMERA_FLASH_*</li>
+ * </ul>
+ * </li>
+ * <li>Manual black level locking<ul>
+ * <li>ACAMERA_BLACK_LEVEL_LOCK</li>
+ * </ul>
+ * </li>
+ * <li>Auto exposure lock<ul>
+ * <li>ACAMERA_CONTROL_AE_LOCK</li>
+ * </ul>
+ * </li>
+ * </ul>
+ * <p>If any of the above 3A algorithms are enabled, then the camera
+ * device will accurately report the values applied by 3A in the
+ * result.</p>
+ * <p>A given camera device may also support additional manual sensor controls,
+ * but this capability only covers the above list of controls.</p>
+ * <p>If this is supported, android.scaler.streamConfigurationMap will
+ * additionally return a min frame duration that is greater than
+ * zero for each supported size-format combination.</p>
+ *
+ * @see ACAMERA_BLACK_LEVEL_LOCK
+ * @see ACAMERA_CONTROL_AE_LOCK
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_FRAME_DURATION
+ * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
+ * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
+ * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR = 1,
+
+ /**
+ * <p>The camera device post-processing stages can be manually controlled.
+ * The camera device supports basic manual control of the image post-processing
+ * stages. This means the following controls are guaranteed to be supported:</p>
+ * <ul>
+ * <li>
+ * <p>Manual tonemap control</p>
+ * <ul>
+ * <li>android.tonemap.curve</li>
+ * <li>ACAMERA_TONEMAP_MODE</li>
+ * <li>ACAMERA_TONEMAP_MAX_CURVE_POINTS</li>
+ * <li>ACAMERA_TONEMAP_GAMMA</li>
+ * <li>ACAMERA_TONEMAP_PRESET_CURVE</li>
+ * </ul>
+ * </li>
+ * <li>
+ * <p>Manual white balance control</p>
+ * <ul>
+ * <li>ACAMERA_COLOR_CORRECTION_TRANSFORM</li>
+ * <li>ACAMERA_COLOR_CORRECTION_GAINS</li>
+ * </ul>
+ * </li>
+ * <li>Manual lens shading map control<ul>
+ * <li>ACAMERA_SHADING_MODE</li>
+ * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE</li>
+ * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP</li>
+ * <li>ACAMERA_LENS_INFO_SHADING_MAP_SIZE</li>
+ * </ul>
+ * </li>
+ * <li>Manual aberration correction control (if aberration correction is supported)<ul>
+ * <li>ACAMERA_COLOR_CORRECTION_ABERRATION_MODE</li>
+ * <li>ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES</li>
+ * </ul>
+ * </li>
+ * <li>Auto white balance lock<ul>
+ * <li>ACAMERA_CONTROL_AWB_LOCK</li>
+ * </ul>
+ * </li>
+ * </ul>
+ * <p>If auto white balance is enabled, then the camera device
+ * will accurately report the values applied by AWB in the result.</p>
+ * <p>A given camera device may also support additional post-processing
+ * controls, but this capability only covers the above list of controls.</p>
+ *
+ * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+ * @see ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES
+ * @see ACAMERA_COLOR_CORRECTION_GAINS
+ * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+ * @see ACAMERA_CONTROL_AWB_LOCK
+ * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
+ * @see ACAMERA_SHADING_MODE
+ * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+ * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+ * @see ACAMERA_TONEMAP_GAMMA
+ * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
+ * @see ACAMERA_TONEMAP_MODE
+ * @see ACAMERA_TONEMAP_PRESET_CURVE
+ */
+ ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING = 2,
+
+ /**
+ * <p>The camera device supports outputting RAW buffers and
+ * metadata for interpreting them.</p>
+ * <p>Devices supporting the RAW capability allow both for
+ * saving DNG files, and for direct application processing of
+ * raw sensor images.</p>
+ * <ul>
+ * <li>RAW_SENSOR is supported as an output format.</li>
+ * <li>The maximum available resolution for RAW_SENSOR streams
+ * will match either the value in
+ * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE or
+ * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE.</li>
+ * <li>All DNG-related optional metadata entries are provided
+ * by the camera device.</li>
+ * </ul>
+ *
+ * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+ * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+ */
+ ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW = 3,
+
+ /**
+ * <p>The camera device supports accurately reporting the sensor settings for many of
+ * the sensor controls while the built-in 3A algorithm is running. This allows
+ * reporting of sensor settings even when these settings cannot be manually changed.</p>
+ * <p>The values reported for the following controls are guaranteed to be available
+ * in the CaptureResult, including when 3A is enabled:</p>
+ * <ul>
+ * <li>Exposure control<ul>
+ * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
+ * </ul>
+ * </li>
+ * <li>Sensitivity control<ul>
+ * <li>ACAMERA_SENSOR_SENSITIVITY</li>
+ * </ul>
+ * </li>
+ * <li>Lens controls (if the lens is adjustable)<ul>
+ * <li>ACAMERA_LENS_FOCUS_DISTANCE</li>
+ * <li>ACAMERA_LENS_APERTURE</li>
+ * </ul>
+ * </li>
+ * </ul>
+ * <p>This capability is a subset of the MANUAL_SENSOR control capability, and will
+ * always be included if the MANUAL_SENSOR capability is available.</p>
+ *
+ * @see ACAMERA_LENS_APERTURE
+ * @see ACAMERA_LENS_FOCUS_DISTANCE
+ * @see ACAMERA_SENSOR_EXPOSURE_TIME
+ * @see ACAMERA_SENSOR_SENSITIVITY
+ */
+ ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS = 5,
+
+ /**
+ * <p>The camera device supports capturing high-resolution images at >= 20 frames per
+ * second, in at least the uncompressed YUV format, when post-processing settings are set
+ * to FAST. Additionally, maximum-resolution images can be captured at >= 10 frames
+ * per second. Here, 'high resolution' means at least 8 megapixels, or the maximum
+ * resolution of the device, whichever is smaller.</p>
+ * <p>More specifically, this means that at least one output {@link
+ * AIMAGE_FORMAT_YUV_420_888} size listed in
+ * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} is larger or equal to the
+ * 'high resolution' defined above, and can be captured at at least 20 fps.
+ * For the largest {@link AIMAGE_FORMAT_YUV_420_888} size listed in
+ * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}, camera device can capture this
+ * size for at least 10 frames per second.
+ * Also the ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES entry lists at least one FPS range
+ * where the minimum FPS is >= 1 / minimumFrameDuration for the largest YUV_420_888 size.</p>
+ * <p>If the device supports the {@link AIMAGE_FORMAT_RAW10}, {@link
+ * AIMAGE_FORMAT_RAW12}, then those can also be captured at the same rate
+ * as the maximum-size YUV_420_888 resolution is.</p>
+ * <p>In addition, the ACAMERA_SYNC_MAX_LATENCY field is guaranted to have a value between 0
+ * and 4, inclusive. ACAMERA_CONTROL_AE_LOCK_AVAILABLE and ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+ * are also guaranteed to be <code>true</code> so burst capture with these two locks ON yields
+ * consistent image output.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES
+ * @see ACAMERA_CONTROL_AE_LOCK_AVAILABLE
+ * @see ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+ * @see ACAMERA_SYNC_MAX_LATENCY
+ */
+ ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE = 6,
+
+ /**
+ * <p>The camera device can produce depth measurements from its field of view.</p>
+ * <p>This capability requires the camera device to support the following:</p>
+ * <ul>
+ * <li>{@link AIMAGE_FORMAT_DEPTH16} is supported as an output format.</li>
+ * <li>{@link AIMAGE_FORMAT_DEPTH_POINT_CLOUD} is optionally supported as an
+ * output format.</li>
+ * <li>This camera device, and all camera devices with the same ACAMERA_LENS_FACING,
+ * will list the following calibration entries in {@link ACameraMetadata} from both
+ * {@link ACameraManager_getCameraCharacteristics} and
+ * {@link ACameraCaptureSession_captureCallback_result}:<ul>
+ * <li>ACAMERA_LENS_POSE_TRANSLATION</li>
+ * <li>ACAMERA_LENS_POSE_ROTATION</li>
+ * <li>ACAMERA_LENS_INTRINSIC_CALIBRATION</li>
+ * <li>ACAMERA_LENS_RADIAL_DISTORTION</li>
+ * </ul>
+ * </li>
+ * <li>The ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE entry is listed by this device.</li>
+ * <li>A LIMITED camera with only the DEPTH_OUTPUT capability does not have to support
+ * normal YUV_420_888, JPEG, and PRIV-format outputs. It only has to support the DEPTH16
+ * format.</li>
+ * </ul>
+ * <p>Generally, depth output operates at a slower frame rate than standard color capture,
+ * so the DEPTH16 and DEPTH_POINT_CLOUD formats will commonly have a stall duration that
+ * should be accounted for (see
+ * {@link ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS}).
+ * On a device that supports both depth and color-based output, to enable smooth preview,
+ * using a repeating burst is recommended, where a depth-output target is only included
+ * once every N frames, where N is the ratio between preview output rate and depth output
+ * rate, including depth stall time.</p>
+ *
+ * @see ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
+ * @see ACAMERA_LENS_FACING
+ * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+ * @see ACAMERA_LENS_POSE_ROTATION
+ * @see ACAMERA_LENS_POSE_TRANSLATION
+ * @see ACAMERA_LENS_RADIAL_DISTORTION
+ */
+ ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT = 8,
+
+} acamera_metadata_enum_android_request_available_capabilities_t;
+
+
+// ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+typedef enum acamera_metadata_enum_acamera_scaler_available_stream_configurations {
+ ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT = 0,
+
+ ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT = 1,
+
+} acamera_metadata_enum_android_scaler_available_stream_configurations_t;
+
+// ACAMERA_SCALER_CROPPING_TYPE
+typedef enum acamera_metadata_enum_acamera_scaler_cropping_type {
+ /**
+ * <p>The camera device only supports centered crop regions.</p>
+ */
+ ACAMERA_SCALER_CROPPING_TYPE_CENTER_ONLY = 0,
+
+ /**
+ * <p>The camera device supports arbitrarily chosen crop regions.</p>
+ */
+ ACAMERA_SCALER_CROPPING_TYPE_FREEFORM = 1,
+
+} acamera_metadata_enum_android_scaler_cropping_type_t;
+
+
+// ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+typedef enum acamera_metadata_enum_acamera_sensor_reference_illuminant1 {
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT = 1,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT = 2,
+
+ /**
+ * <p>Incandescent light</p>
+ */
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN = 3,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLASH = 4,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER = 9,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER = 10,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_SHADE = 11,
+
+ /**
+ * <p>D 5700 - 7100K</p>
+ */
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT = 12,
+
+ /**
+ * <p>N 4600 - 5400K</p>
+ */
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT = 13,
+
+ /**
+ * <p>W 3900 - 4500K</p>
+ */
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT = 14,
+
+ /**
+ * <p>WW 3200 - 3700K</p>
+ */
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT = 15,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A = 17,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B = 18,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C = 19,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D55 = 20,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D65 = 21,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D75 = 22,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D50 = 23,
+
+ ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN = 24,
+
+} acamera_metadata_enum_android_sensor_reference_illuminant1_t;
+
+// ACAMERA_SENSOR_TEST_PATTERN_MODE
+typedef enum acamera_metadata_enum_acamera_sensor_test_pattern_mode {
+ /**
+ * <p>No test pattern mode is used, and the camera
+ * device returns captures from the image sensor.</p>
+ * <p>This is the default if the key is not set.</p>
+ */
+ ACAMERA_SENSOR_TEST_PATTERN_MODE_OFF = 0,
+
+ /**
+ * <p>Each pixel in <code>[R, G_even, G_odd, B]</code> is replaced by its
+ * respective color channel provided in
+ * ACAMERA_SENSOR_TEST_PATTERN_DATA.</p>
+ * <p>For example:</p>
+ * <pre><code>android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]
+ * </code></pre>
+ * <p>All green pixels are 100% green. All red/blue pixels are black.</p>
+ * <pre><code>android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]
+ * </code></pre>
+ * <p>All red pixels are 100% red. Only the odd green pixels
+ * are 100% green. All blue pixels are 100% black.</p>
+ *
+ * @see ACAMERA_SENSOR_TEST_PATTERN_DATA
+ */
+ ACAMERA_SENSOR_TEST_PATTERN_MODE_SOLID_COLOR = 1,
+
+ /**
+ * <p>All pixel data is replaced with an 8-bar color pattern.</p>
+ * <p>The vertical bars (left-to-right) are as follows:</p>
+ * <ul>
+ * <li>100% white</li>
+ * <li>yellow</li>
+ * <li>cyan</li>
+ * <li>green</li>
+ * <li>magenta</li>
+ * <li>red</li>
+ * <li>blue</li>
+ * <li>black</li>
+ * </ul>
+ * <p>In general the image would look like the following:</p>
+ * <pre><code>W Y C G M R B K
+ * W Y C G M R B K
+ * W Y C G M R B K
+ * W Y C G M R B K
+ * W Y C G M R B K
+ * . . . . . . . .
+ * . . . . . . . .
+ * . . . . . . . .
+ *
+ * (B = Blue, K = Black)
+ * </code></pre>
+ * <p>Each bar should take up 1/8 of the sensor pixel array width.
+ * When this is not possible, the bar size should be rounded
+ * down to the nearest integer and the pattern can repeat
+ * on the right side.</p>
+ * <p>Each bar's height must always take up the full sensor
+ * pixel array height.</p>
+ * <p>Each pixel in this test pattern must be set to either
+ * 0% intensity or 100% intensity.</p>
+ */
+ ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS = 2,
+
+ /**
+ * <p>The test pattern is similar to COLOR_BARS, except that
+ * each bar should start at its specified color at the top,
+ * and fade to gray at the bottom.</p>
+ * <p>Furthermore each bar is further subdivided into a left and
+ * right half. The left half should have a smooth gradient,
+ * and the right half should have a quantized gradient.</p>
+ * <p>In particular, the right half's should consist of blocks of the
+ * same color for 1/16th active sensor pixel array width.</p>
+ * <p>The least significant bits in the quantized gradient should
+ * be copied from the most significant bits of the smooth gradient.</p>
+ * <p>The height of each bar should always be a multiple of 128.
+ * When this is not the case, the pattern should repeat at the bottom
+ * of the image.</p>
+ */
+ ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY = 3,
+
+ /**
+ * <p>All pixel data is replaced by a pseudo-random sequence
+ * generated from a PN9 512-bit sequence (typically implemented
+ * in hardware with a linear feedback shift register).</p>
+ * <p>The generator should be reset at the beginning of each frame,
+ * and thus each subsequent raw frame with this test pattern should
+ * be exactly the same as the last.</p>
+ */
+ ACAMERA_SENSOR_TEST_PATTERN_MODE_PN9 = 4,
+
+ /**
+ * <p>The first custom test pattern. All custom patterns that are
+ * available only on this camera device are at least this numeric
+ * value.</p>
+ * <p>All of the custom test patterns will be static
+ * (that is the raw image must not vary from frame to frame).</p>
+ */
+ ACAMERA_SENSOR_TEST_PATTERN_MODE_CUSTOM1 = 256,
+
+} acamera_metadata_enum_android_sensor_test_pattern_mode_t;
+
+
+// ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+typedef enum acamera_metadata_enum_acamera_sensor_info_color_filter_arrangement {
+ ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB = 0,
+
+ ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG = 1,
+
+ ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG = 2,
+
+ ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR = 3,
+
+ /**
+ * <p>Sensor is not Bayer; output has 3 16-bit
+ * values for each pixel, instead of just 1 16-bit value
+ * per pixel.</p>
+ */
+ ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB = 4,
+
+} acamera_metadata_enum_android_sensor_info_color_filter_arrangement_t;
+
+// ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+typedef enum acamera_metadata_enum_acamera_sensor_info_timestamp_source {
+ /**
+ * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in nanoseconds and monotonic,
+ * but can not be compared to timestamps from other subsystems
+ * (e.g. accelerometer, gyro etc.), or other instances of the same or different
+ * camera devices in the same system. Timestamps between streams and results for
+ * a single camera instance are comparable, and the timestamps for all buffers
+ * and the result metadata generated by a single capture are identical.</p>
+ *
+ * @see ACAMERA_SENSOR_TIMESTAMP
+ */
+ ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN = 0,
+
+ /**
+ * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in the same timebase as
+ * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
+ * (or CLOCK_BOOTTIME), and they can be compared to other timestamps using that base.</p>
+ *
+ * @see ACAMERA_SENSOR_TIMESTAMP
+ */
+ ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME = 1,
+
+} acamera_metadata_enum_android_sensor_info_timestamp_source_t;
+
+// ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+typedef enum acamera_metadata_enum_acamera_sensor_info_lens_shading_applied {
+ ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_FALSE = 0,
+
+ ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_TRUE = 1,
+
+} acamera_metadata_enum_android_sensor_info_lens_shading_applied_t;
+
+
+// ACAMERA_SHADING_MODE
+typedef enum acamera_metadata_enum_acamera_shading_mode {
+ /**
+ * <p>No lens shading correction is applied.</p>
+ */
+ ACAMERA_SHADING_MODE_OFF = 0,
+
+ /**
+ * <p>Apply lens shading corrections, without slowing
+ * frame rate relative to sensor raw output</p>
+ */
+ ACAMERA_SHADING_MODE_FAST = 1,
+
+ /**
+ * <p>Apply high-quality lens shading correction, at the
+ * cost of possibly reduced frame rate.</p>
+ */
+ ACAMERA_SHADING_MODE_HIGH_QUALITY = 2,
+
+} acamera_metadata_enum_android_shading_mode_t;
+
+
+// ACAMERA_STATISTICS_FACE_DETECT_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_face_detect_mode {
+ /**
+ * <p>Do not include face detection statistics in capture
+ * results.</p>
+ */
+ ACAMERA_STATISTICS_FACE_DETECT_MODE_OFF = 0,
+
+ /**
+ * <p>Return face rectangle and confidence values only.</p>
+ */
+ ACAMERA_STATISTICS_FACE_DETECT_MODE_SIMPLE = 1,
+
+ /**
+ * <p>Return all face
+ * metadata.</p>
+ * <p>In this mode, face rectangles, scores, landmarks, and face IDs are all valid.</p>
+ */
+ ACAMERA_STATISTICS_FACE_DETECT_MODE_FULL = 2,
+
+} acamera_metadata_enum_android_statistics_face_detect_mode_t;
+
+// ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_hot_pixel_map_mode {
+ /**
+ * <p>Hot pixel map production is disabled.</p>
+ */
+ ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_OFF = 0,
+
+ /**
+ * <p>Hot pixel map production is enabled.</p>
+ */
+ ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_ON = 1,
+
+} acamera_metadata_enum_android_statistics_hot_pixel_map_mode_t;
+
+// ACAMERA_STATISTICS_SCENE_FLICKER
+typedef enum acamera_metadata_enum_acamera_statistics_scene_flicker {
+ /**
+ * <p>The camera device does not detect any flickering illumination
+ * in the current scene.</p>
+ */
+ ACAMERA_STATISTICS_SCENE_FLICKER_NONE = 0,
+
+ /**
+ * <p>The camera device detects illumination flickering at 50Hz
+ * in the current scene.</p>
+ */
+ ACAMERA_STATISTICS_SCENE_FLICKER_50HZ = 1,
+
+ /**
+ * <p>The camera device detects illumination flickering at 60Hz
+ * in the current scene.</p>
+ */
+ ACAMERA_STATISTICS_SCENE_FLICKER_60HZ = 2,
+
+} acamera_metadata_enum_android_statistics_scene_flicker_t;
+
+// ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_lens_shading_map_mode {
+ /**
+ * <p>Do not include a lens shading map in the capture result.</p>
+ */
+ ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_OFF = 0,
+
+ /**
+ * <p>Include a lens shading map in the capture result.</p>
+ */
+ ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_ON = 1,
+
+} acamera_metadata_enum_android_statistics_lens_shading_map_mode_t;
+
+
+
+// ACAMERA_TONEMAP_MODE
+typedef enum acamera_metadata_enum_acamera_tonemap_mode {
+ /**
+ * <p>Use the tone mapping curve specified in
+ * the ACAMERA_TONEMAPCURVE_* entries.</p>
+ * <p>All color enhancement and tonemapping must be disabled, except
+ * for applying the tonemapping curve specified by
+ * android.tonemap.curve.</p>
+ * <p>Must not slow down frame rate relative to raw
+ * sensor output.</p>
+ */
+ ACAMERA_TONEMAP_MODE_CONTRAST_CURVE = 0,
+
+ /**
+ * <p>Advanced gamma mapping and color enhancement may be applied, without
+ * reducing frame rate compared to raw sensor output.</p>
+ */
+ ACAMERA_TONEMAP_MODE_FAST = 1,
+
+ /**
+ * <p>High-quality gamma mapping and color enhancement will be applied, at
+ * the cost of possibly reduced frame rate compared to raw sensor output.</p>
+ */
+ ACAMERA_TONEMAP_MODE_HIGH_QUALITY = 2,
+
+ /**
+ * <p>Use the gamma value specified in ACAMERA_TONEMAP_GAMMA to peform
+ * tonemapping.</p>
+ * <p>All color enhancement and tonemapping must be disabled, except
+ * for applying the tonemapping curve specified by ACAMERA_TONEMAP_GAMMA.</p>
+ * <p>Must not slow down frame rate relative to raw sensor output.</p>
+ *
+ * @see ACAMERA_TONEMAP_GAMMA
+ */
+ ACAMERA_TONEMAP_MODE_GAMMA_VALUE = 3,
+
+ /**
+ * <p>Use the preset tonemapping curve specified in
+ * ACAMERA_TONEMAP_PRESET_CURVE to peform tonemapping.</p>
+ * <p>All color enhancement and tonemapping must be disabled, except
+ * for applying the tonemapping curve specified by
+ * ACAMERA_TONEMAP_PRESET_CURVE.</p>
+ * <p>Must not slow down frame rate relative to raw sensor output.</p>
+ *
+ * @see ACAMERA_TONEMAP_PRESET_CURVE
+ */
+ ACAMERA_TONEMAP_MODE_PRESET_CURVE = 4,
+
+} acamera_metadata_enum_android_tonemap_mode_t;
+
+// ACAMERA_TONEMAP_PRESET_CURVE
+typedef enum acamera_metadata_enum_acamera_tonemap_preset_curve {
+ /**
+ * <p>Tonemapping curve is defined by sRGB</p>
+ */
+ ACAMERA_TONEMAP_PRESET_CURVE_SRGB = 0,
+
+ /**
+ * <p>Tonemapping curve is defined by ITU-R BT.709</p>
+ */
+ ACAMERA_TONEMAP_PRESET_CURVE_REC709 = 1,
+
+} acamera_metadata_enum_android_tonemap_preset_curve_t;
+
+
+
+// ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+typedef enum acamera_metadata_enum_acamera_info_supported_hardware_level {
+ /**
+ * <p>This camera device does not have enough capabilities to qualify as a <code>FULL</code> device or
+ * better.</p>
+ * <p>Only the stream configurations listed in the <code>LEGACY</code> and <code>LIMITED</code> tables in the
+ * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
+ * <p>All <code>LIMITED</code> devices support the <code>BACKWARDS_COMPATIBLE</code> capability, indicating basic
+ * support for color image capture. The only exception is that the device may
+ * alternatively support only the <code>DEPTH_OUTPUT</code> capability, if it can only output depth
+ * measurements and not color images.</p>
+ * <p><code>LIMITED</code> devices and above require the use of ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * to lock exposure metering (and calculate flash power, for cameras with flash) before
+ * capturing a high-quality still image.</p>
+ * <p>A <code>LIMITED</code> device that only lists the <code>BACKWARDS_COMPATIBLE</code> capability is only
+ * required to support full-automatic operation and post-processing (<code>OFF</code> is not
+ * supported for ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AF_MODE, or
+ * ACAMERA_CONTROL_AWB_MODE)</p>
+ * <p>Additional capabilities may optionally be supported by a <code>LIMITED</code>-level device, and
+ * can be checked for in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_MODE
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * @see ACAMERA_CONTROL_AF_MODE
+ * @see ACAMERA_CONTROL_AWB_MODE
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ */
+ ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED = 0,
+
+ /**
+ * <p>This camera device is capable of supporting advanced imaging applications.</p>
+ * <p>The stream configurations listed in the <code>FULL</code>, <code>LEGACY</code> and <code>LIMITED</code> tables in the
+ * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
+ * <p>A <code>FULL</code> device will support below capabilities:</p>
+ * <ul>
+ * <li><code>BURST_CAPTURE</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+ * <code>BURST_CAPTURE</code>)</li>
+ * <li>Per frame control (ACAMERA_SYNC_MAX_LATENCY <code>==</code> PER_FRAME_CONTROL)</li>
+ * <li>Manual sensor control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains <code>MANUAL_SENSOR</code>)</li>
+ * <li>Manual post-processing control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+ * <code>MANUAL_POST_PROCESSING</code>)</li>
+ * <li>The required exposure time range defined in ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
+ * <li>The required maxFrameDuration defined in ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
+ * </ul>
+ * <p>Note:
+ * Pre-API level 23, FULL devices also supported arbitrary cropping region
+ * (ACAMERA_SCALER_CROPPING_TYPE <code>== FREEFORM</code>); this requirement was relaxed in API level
+ * 23, and <code>FULL</code> devices may only support <code>CENTERED</code> cropping.</p>
+ *
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ * @see ACAMERA_SCALER_CROPPING_TYPE
+ * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
+ * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
+ * @see ACAMERA_SYNC_MAX_LATENCY
+ */
+ ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL = 1,
+
+ /**
+ * <p>This camera device is running in backward compatibility mode.</p>
+ * <p>Only the stream configurations listed in the <code>LEGACY</code> table in the {@link
+ * ACameraDevice_createCaptureSession} documentation are supported.</p>
+ * <p>A <code>LEGACY</code> device does not support per-frame control, manual sensor control, manual
+ * post-processing, arbitrary cropping regions, and has relaxed performance constraints.
+ * No additional capabilities beyond <code>BACKWARD_COMPATIBLE</code> will ever be listed by a
+ * <code>LEGACY</code> device in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+ * <p>In addition, the ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is not functional on <code>LEGACY</code>
+ * devices. Instead, every request that includes a JPEG-format output target is treated
+ * as triggering a still capture, internally executing a precapture trigger. This may
+ * fire the flash for flash power metering during precapture, and then fire the flash
+ * for the final capture, if a flash is available on the device and the AE mode is set to
+ * enable the flash.</p>
+ *
+ * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ */
+ ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY = 2,
+
+ /**
+ * <p>This camera device is capable of YUV reprocessing and RAW data capture, in addition to
+ * FULL-level capabilities.</p>
+ * <p>The stream configurations listed in the <code>LEVEL_3</code>, <code>RAW</code>, <code>FULL</code>, <code>LEGACY</code> and
+ * <code>LIMITED</code> tables in the {@link
+ * ACameraDevice_createCaptureSession}
+ * documentation are guaranteed to be supported.</p>
+ * <p>The following additional capabilities are guaranteed to be supported:</p>
+ * <ul>
+ * <li><code>YUV_REPROCESSING</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+ * <code>YUV_REPROCESSING</code>)</li>
+ * <li><code>RAW</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+ * <code>RAW</code>)</li>
+ * </ul>
+ *
+ * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+ */
+ ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_3 = 3,
+
+} acamera_metadata_enum_android_info_supported_hardware_level_t;
+
+
+// ACAMERA_BLACK_LEVEL_LOCK
+typedef enum acamera_metadata_enum_acamera_black_level_lock {
+ ACAMERA_BLACK_LEVEL_LOCK_OFF = 0,
+
+ ACAMERA_BLACK_LEVEL_LOCK_ON = 1,
+
+} acamera_metadata_enum_android_black_level_lock_t;
+
+
+// ACAMERA_SYNC_FRAME_NUMBER
+typedef enum acamera_metadata_enum_acamera_sync_frame_number {
+ /**
+ * <p>The current result is not yet fully synchronized to any request.</p>
+ * <p>Synchronization is in progress, and reading metadata from this
+ * result may include a mix of data that have taken effect since the
+ * last synchronization time.</p>
+ * <p>In some future result, within ACAMERA_SYNC_MAX_LATENCY frames,
+ * this value will update to the actual frame number frame number
+ * the result is guaranteed to be synchronized to (as long as the
+ * request settings remain constant).</p>
+ *
+ * @see ACAMERA_SYNC_MAX_LATENCY
+ */
+ ACAMERA_SYNC_FRAME_NUMBER_CONVERGING = -1,
+
+ /**
+ * <p>The current result's synchronization status is unknown.</p>
+ * <p>The result may have already converged, or it may be in
+ * progress. Reading from this result may include some mix
+ * of settings from past requests.</p>
+ * <p>After a settings change, the new settings will eventually all
+ * take effect for the output buffers and results. However, this
+ * value will not change when that happens. Altering settings
+ * rapidly may provide outcomes using mixes of settings from recent
+ * requests.</p>
+ * <p>This value is intended primarily for backwards compatibility with
+ * the older camera implementations (for android.hardware.Camera).</p>
+ */
+ ACAMERA_SYNC_FRAME_NUMBER_UNKNOWN = -2,
+
+} acamera_metadata_enum_android_sync_frame_number_t;
+
+// ACAMERA_SYNC_MAX_LATENCY
+typedef enum acamera_metadata_enum_acamera_sync_max_latency {
+ /**
+ * <p>Every frame has the requests immediately applied.</p>
+ * <p>Changing controls over multiple requests one after another will
+ * produce results that have those controls applied atomically
+ * each frame.</p>
+ * <p>All FULL capability devices will have this as their maxLatency.</p>
+ */
+ ACAMERA_SYNC_MAX_LATENCY_PER_FRAME_CONTROL = 0,
+
+ /**
+ * <p>Each new frame has some subset (potentially the entire set)
+ * of the past requests applied to the camera settings.</p>
+ * <p>By submitting a series of identical requests, the camera device
+ * will eventually have the camera settings applied, but it is
+ * unknown when that exact point will be.</p>
+ * <p>All LEGACY capability devices will have this as their maxLatency.</p>
+ */
+ ACAMERA_SYNC_MAX_LATENCY_UNKNOWN = -1,
+
+} acamera_metadata_enum_android_sync_max_latency_t;
+
+
+
+// ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS
+typedef enum acamera_metadata_enum_acamera_depth_available_depth_stream_configurations {
+ ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_OUTPUT = 0,
+
+ ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_INPUT = 1,
+
+} acamera_metadata_enum_android_depth_available_depth_stream_configurations_t;
+
+// ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
+typedef enum acamera_metadata_enum_acamera_depth_depth_is_exclusive {
+ ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_FALSE = 0,
+
+ ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_TRUE = 1,
+
+} acamera_metadata_enum_android_depth_depth_is_exclusive_t;
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_METADATA_TAGS_H */
+
+/** @} */
diff --git a/camera/include/camera/ndk/NdkCaptureRequest.h b/camera/include/camera/ndk/NdkCaptureRequest.h
new file mode 100644
index 0000000..c62ba2c
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCaptureRequest.h
@@ -0,0 +1,312 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCaptureRequest.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#include <sys/cdefs.h>
+
+#include <android/native_window.h>
+#include "NdkCameraError.h"
+#include "NdkCameraMetadata.h"
+
+#ifndef _NDK_CAPTURE_REQUEST_H
+#define _NDK_CAPTURE_REQUEST_H
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+// Container for output targets
+typedef struct ACameraOutputTargets ACameraOutputTargets;
+
+// Container for a single output target
+typedef struct ACameraOutputTarget ACameraOutputTarget;
+
+/**
+ * ACaptureRequest is an opaque type that contains settings and output targets needed to capture
+ * a single image from camera device.
+ *
+ * <p>ACaptureRequest contains the configuration for the capture hardware (sensor, lens, flash),
+ * the processing pipeline, the control algorithms, and the output buffers. Also
+ * contains the list of target {@link ANativeWindow}s to send image data to for this
+ * capture.</p>
+ *
+ * <p>ACaptureRequest is created by {@link ACameraDevice_createCaptureRequest}.
+ *
+ * <p>ACaptureRequest is given to {@link ACameraCaptureSession_capture} or
+ * {@link ACameraCaptureSession_setRepeatingRequest} to capture images from a camera.</p>
+ *
+ * <p>Each request can specify a different subset of target {@link ANativeWindow}s for the
+ * camera to send the captured data to. All the {@link ANativeWindow}s used in a request must
+ * be part of the {@link ANativeWindow} list given to the last call to
+ * {@link ACameraDevice_createCaptureSession}, when the request is submitted to the
+ * session.</p>
+ *
+ * <p>For example, a request meant for repeating preview might only include the
+ * {@link ANativeWindow} for the preview SurfaceView or SurfaceTexture, while a
+ * high-resolution still capture would also include a {@link ANativeWindow} from a
+ * {@link AImageReader} configured for high-resolution JPEG images.</p>
+ *
+ * @see ACameraDevice_createCaptureRequest
+ * @see ACameraCaptureSession_capture
+ * @see ACameraCaptureSession_setRepeatingRequest
+ */
+typedef struct ACaptureRequest ACaptureRequest;
+
+/**
+ * Create a ACameraOutputTarget object.
+ *
+ * <p>The ACameraOutputTarget is used in {@link ACaptureRequest_addTarget} method to add an output
+ * {@link ANativeWindow} to ACaptureRequest. Use {@link ACameraOutputTarget_free} to free the object
+ * and its memory after application no longer needs the {@link ACameraOutputTarget}.</p>
+ *
+ * @param window the {@link ANativeWindow} to be associated with the {@link ACameraOutputTarget}
+ * @param output the output {@link ACameraOutputTarget} will be stored here if the
+ * method call succeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds. The created ACameraOutputTarget will
+ * be filled in the output argument.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if window or output is NULL.</li></ul>
+ *
+ * @see ACaptureRequest_addTarget
+ */
+camera_status_t ACameraOutputTarget_create(ANativeWindow* window, ACameraOutputTarget** output);
+
+/**
+ * Free a ACameraOutputTarget object.
+ *
+ * @param output the {@link ACameraOutputTarget} to be freed.
+ *
+ * @see ACameraOutputTarget_create
+ */
+void ACameraOutputTarget_free(ACameraOutputTarget* output);
+
+/**
+ * Add an {@link ACameraOutputTarget} object to {@link ACaptureRequest}.
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param output the output {@link ACameraOutputTarget} to be added to capture request.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request or output is NULL.</li></ul>
+ */
+camera_status_t ACaptureRequest_addTarget(ACaptureRequest* request,
+ const ACameraOutputTarget* output);
+
+/**
+ * Remove an {@link ACameraOutputTarget} object from {@link ACaptureRequest}.
+ *
+ * <p>This method has no effect if the ACameraOutputTarget does not exist in ACaptureRequest.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param output the output {@link ACameraOutputTarget} to be removed from capture request.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request or output is NULL.</li></ul>
+ */
+camera_status_t ACaptureRequest_removeTarget(ACaptureRequest* request,
+ const ACameraOutputTarget* output);
+
+/**
+ * Get a metadata entry from input {@link ACaptureRequest}.
+ *
+ * <p>The memory of the data field in returned entry is managed by camera framework. Do not
+ * attempt to free it.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be get.
+ * @param entry the output {@link ACameraMetadata_const_entry} will be filled here if the method
+ * call succeeeds.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if metadata or entry is NULL.</li>
+ * <li>{@link ACAMERA_ERROR_METADATA_NOT_FOUND} if the capture request does not contain an
+ * entry of input tag value.</li></ul>
+ */
+camera_status_t ACaptureRequest_getConstEntry(
+ const ACaptureRequest* request, uint32_t tag, ACameraMetadata_const_entry* entry);
+
+/*
+ * List all the entry tags in input {@link ACaptureRequest}.
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param numEntries number of metadata entries in input {@link ACaptureRequest}
+ * @param tags the tag values of the metadata entries. Length of tags is returned in numEntries
+ * argument. The memory is managed by ACaptureRequest itself and must NOT be free/delete
+ * by application. Calling ACaptureRequest_setEntry_* methods will invalidate previous
+ * output of ACaptureRequest_getAllTags. Do not access tags after calling
+ * ACaptureRequest_setEntry_*. To get new list of tags after updating capture request,
+ * application must call ACaptureRequest_getAllTags again. Do NOT access tags after
+ * calling ACaptureRequest_free.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request, numEntries or tags is NULL.</li>
+ * <li>{@link ACAMERA_ERROR_UNKNOWN} if the method fails for some other reasons.</li></ul>
+ */
+camera_status_t ACaptureRequest_getAllTags(
+ const ACaptureRequest* request, /*out*/int32_t* numTags, /*out*/const uint32_t** tags);
+
+/**
+ * Set/change a camera capture control entry with unsigned 8 bits data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ * zero while data is NULL, the data type of the tag is not unsigned 8 bits, or
+ * the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_u8(
+ ACaptureRequest* request, uint32_t tag, uint32_t count, const uint8_t* data);
+
+/**
+ * Set/change a camera capture control entry with signed 32 bits data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ * zero while data is NULL, the data type of the tag is not signed 32 bits, or
+ * the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_i32(
+ ACaptureRequest* request, uint32_t tag, uint32_t count, const int32_t* data);
+
+/**
+ * Set/change a camera capture control entry with float data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ * zero while data is NULL, the data type of the tag is not float, or
+ * the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_float(
+ ACaptureRequest* request, uint32_t tag, uint32_t count, const float* data);
+
+/**
+ * Set/change a camera capture control entry with signed 64 bits data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ * zero while data is NULL, the data type of the tag is not signed 64 bits, or
+ * the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_i64(
+ ACaptureRequest* request, uint32_t tag, uint32_t count, const int64_t* data);
+
+/**
+ * Set/change a camera capture control entry with double data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ * zero while data is NULL, the data type of the tag is not double, or
+ * the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_double(
+ ACaptureRequest* request, uint32_t tag, uint32_t count, const double* data);
+
+/**
+ * Set/change a camera capture control entry with rational data type.
+ *
+ * <p>Set count to 0 and data to NULL to remove a tag from the capture request.</p>
+ *
+ * @param request the {@link ACaptureRequest} of interest.
+ * @param tag the tag value of the camera metadata entry to be set.
+ * @param count number of elements to be set in data argument
+ * @param data the entries to be set/change in the capture request.
+ *
+ * @return <ul>
+ * <li>{@link ACAMERA_OK} if the method call succeeds.</li>
+ * <li>{@link ACAMERA_ERROR_INVALID_PARAMETER} if request is NULL, count is larger than
+ * zero while data is NULL, the data type of the tag is not rational, or
+ * the tag is not controllable by application.</li></ul>
+ */
+camera_status_t ACaptureRequest_setEntry_rational(
+ ACaptureRequest* request, uint32_t tag, uint32_t count,
+ const ACameraMetadata_rational* data);
+
+/**
+ * Free a {@link ACaptureRequest} structure.
+ *
+ * @param request the {@link ACaptureRequest} to be freed.
+ */
+void ACaptureRequest_free(ACaptureRequest* request);
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAPTURE_REQUEST_H */
+
+/** @} */