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Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -08001/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_SERVERS_CAMERA_CAMERADEVICEBASE_H
18#define ANDROID_SERVERS_CAMERA_CAMERADEVICEBASE_H
19
20#include <utils/RefBase.h>
21#include <utils/String8.h>
22#include <utils/String16.h>
23#include <utils/Vector.h>
24#include <utils/Timers.h>
Jianing Wei90e59c92014-03-12 18:29:36 -070025#include <utils/List.h>
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080026
Jianing Weicb0652e2014-03-12 18:29:36 -070027#include <camera/camera2/ICameraDeviceCallbacks.h>
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080028#include "hardware/camera2.h"
Zhijun He0ea8fa42014-07-07 17:05:38 -070029#include "hardware/camera3.h"
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080030#include "camera/CameraMetadata.h"
Jianing Weicb0652e2014-03-12 18:29:36 -070031#include "camera/CaptureResult.h"
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080032
33namespace android {
34
35/**
36 * Base interface for version >= 2 camera device classes, which interface to
37 * camera HAL device versions >= 2.
38 */
39class CameraDeviceBase : public virtual RefBase {
40 public:
41 virtual ~CameraDeviceBase();
42
Igor Murashkin71381052013-03-04 14:53:08 -080043 /**
44 * The device's camera ID
45 */
46 virtual int getId() const = 0;
47
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080048 virtual status_t initialize(camera_module_t *module) = 0;
49 virtual status_t disconnect() = 0;
50
Jianing Weicb0652e2014-03-12 18:29:36 -070051 virtual status_t dump(int fd, const Vector<String16> &args) = 0;
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080052
53 /**
54 * The device's static characteristics metadata buffer
55 */
56 virtual const CameraMetadata& info() const = 0;
57
58 /**
59 * Submit request for capture. The CameraDevice takes ownership of the
60 * passed-in buffer.
Jianing Weicb0652e2014-03-12 18:29:36 -070061 * Output lastFrameNumber is the expected frame number of this request.
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080062 */
Jianing Weicb0652e2014-03-12 18:29:36 -070063 virtual status_t capture(CameraMetadata &request, int64_t *lastFrameNumber = NULL) = 0;
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080064
65 /**
Jianing Wei90e59c92014-03-12 18:29:36 -070066 * Submit a list of requests.
Jianing Weicb0652e2014-03-12 18:29:36 -070067 * Output lastFrameNumber is the expected last frame number of the list of requests.
Jianing Wei90e59c92014-03-12 18:29:36 -070068 */
Jianing Weicb0652e2014-03-12 18:29:36 -070069 virtual status_t captureList(const List<const CameraMetadata> &requests,
70 int64_t *lastFrameNumber = NULL) = 0;
Jianing Wei90e59c92014-03-12 18:29:36 -070071
72 /**
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080073 * Submit request for streaming. The CameraDevice makes a copy of the
74 * passed-in buffer and the caller retains ownership.
Jianing Weicb0652e2014-03-12 18:29:36 -070075 * Output lastFrameNumber is the last frame number of the previous streaming request.
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080076 */
Jianing Weicb0652e2014-03-12 18:29:36 -070077 virtual status_t setStreamingRequest(const CameraMetadata &request,
78 int64_t *lastFrameNumber = NULL) = 0;
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080079
80 /**
Jianing Wei90e59c92014-03-12 18:29:36 -070081 * Submit a list of requests for streaming.
Jianing Weicb0652e2014-03-12 18:29:36 -070082 * Output lastFrameNumber is the last frame number of the previous streaming request.
Jianing Wei90e59c92014-03-12 18:29:36 -070083 */
Jianing Weicb0652e2014-03-12 18:29:36 -070084 virtual status_t setStreamingRequestList(const List<const CameraMetadata> &requests,
85 int64_t *lastFrameNumber = NULL) = 0;
Jianing Wei90e59c92014-03-12 18:29:36 -070086
87 /**
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080088 * Clear the streaming request slot.
Jianing Weicb0652e2014-03-12 18:29:36 -070089 * Output lastFrameNumber is the last frame number of the previous streaming request.
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080090 */
Jianing Weicb0652e2014-03-12 18:29:36 -070091 virtual status_t clearStreamingRequest(int64_t *lastFrameNumber = NULL) = 0;
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -080092
93 /**
94 * Wait until a request with the given ID has been dequeued by the
95 * HAL. Returns TIMED_OUT if the timeout duration is reached. Returns
96 * immediately if the latest request received by the HAL has this id.
97 */
98 virtual status_t waitUntilRequestReceived(int32_t requestId,
99 nsecs_t timeout) = 0;
100
101 /**
102 * Create an output stream of the requested size and format.
103 *
104 * If format is CAMERA2_HAL_PIXEL_FORMAT_OPAQUE, then the HAL device selects
105 * an appropriate format; it can be queried with getStreamInfo.
106 *
107 * If format is HAL_PIXEL_FORMAT_COMPRESSED, the size parameter must be
108 * equal to the size in bytes of the buffers to allocate for the stream. For
109 * other formats, the size parameter is ignored.
110 */
111 virtual status_t createStream(sp<ANativeWindow> consumer,
112 uint32_t width, uint32_t height, int format, size_t size,
113 int *id) = 0;
114
115 /**
116 * Create an input reprocess stream that uses buffers from an existing
117 * output stream.
118 */
119 virtual status_t createReprocessStreamFromStream(int outputId, int *id) = 0;
120
121 /**
122 * Get information about a given stream.
123 */
124 virtual status_t getStreamInfo(int id,
125 uint32_t *width, uint32_t *height, uint32_t *format) = 0;
126
127 /**
128 * Set stream gralloc buffer transform
129 */
130 virtual status_t setStreamTransform(int id, int transform) = 0;
131
132 /**
133 * Delete stream. Must not be called if there are requests in flight which
134 * reference that stream.
135 */
136 virtual status_t deleteStream(int id) = 0;
137
138 /**
139 * Delete reprocess stream. Must not be called if there are requests in
140 * flight which reference that stream.
141 */
142 virtual status_t deleteReprocessStream(int id) = 0;
143
144 /**
145 * Create a metadata buffer with fields that the HAL device believes are
146 * best for the given use case
147 */
148 virtual status_t createDefaultRequest(int templateId,
149 CameraMetadata *request) = 0;
150
151 /**
152 * Wait until all requests have been processed. Returns INVALID_OPERATION if
153 * the streaming slot is not empty, or TIMED_OUT if the requests haven't
154 * finished processing in 10 seconds.
155 */
156 virtual status_t waitUntilDrained() = 0;
157
158 /**
159 * Abstract class for HAL notification listeners
160 */
161 class NotificationListener {
162 public:
Eino-Ville Talvalaf1e98d82013-09-06 09:32:43 -0700163 // The set of notifications is a merge of the notifications required for
164 // API1 and API2.
165
166 // Required for API 1 and 2
Jianing Weicb0652e2014-03-12 18:29:36 -0700167 virtual void notifyError(ICameraDeviceCallbacks::CameraErrorCode errorCode,
168 const CaptureResultExtras &resultExtras) = 0;
Eino-Ville Talvalaf1e98d82013-09-06 09:32:43 -0700169
170 // Required only for API2
171 virtual void notifyIdle() = 0;
Jianing Weicb0652e2014-03-12 18:29:36 -0700172 virtual void notifyShutter(const CaptureResultExtras &resultExtras,
Eino-Ville Talvalaf1e98d82013-09-06 09:32:43 -0700173 nsecs_t timestamp) = 0;
174
175 // Required only for API1
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -0800176 virtual void notifyAutoFocus(uint8_t newState, int triggerId) = 0;
177 virtual void notifyAutoExposure(uint8_t newState, int triggerId) = 0;
178 virtual void notifyAutoWhitebalance(uint8_t newState,
179 int triggerId) = 0;
180 protected:
181 virtual ~NotificationListener();
182 };
183
184 /**
185 * Connect HAL notifications to a listener. Overwrites previous
186 * listener. Set to NULL to stop receiving notifications.
187 */
188 virtual status_t setNotifyCallback(NotificationListener *listener) = 0;
189
190 /**
Eino-Ville Talvala46910bd2013-07-18 19:15:17 -0700191 * Whether the device supports calling notifyAutofocus, notifyAutoExposure,
192 * and notifyAutoWhitebalance; if this returns false, the client must
193 * synthesize these notifications from received frame metadata.
194 */
195 virtual bool willNotify3A() = 0;
196
197 /**
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -0800198 * Wait for a new frame to be produced, with timeout in nanoseconds.
199 * Returns TIMED_OUT when no frame produced within the specified duration
Eino-Ville Talvalaf1e98d82013-09-06 09:32:43 -0700200 * May be called concurrently to most methods, except for getNextFrame
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -0800201 */
202 virtual status_t waitForNextFrame(nsecs_t timeout) = 0;
203
204 /**
Jianing Weicb0652e2014-03-12 18:29:36 -0700205 * Get next capture result frame from the result queue. Returns NOT_ENOUGH_DATA
206 * if the queue is empty; caller takes ownership of the metadata buffer inside
207 * the capture result object's metadata field.
208 * May be called concurrently to most methods, except for waitForNextFrame.
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -0800209 */
Jianing Weicb0652e2014-03-12 18:29:36 -0700210 virtual status_t getNextResult(CaptureResult *frame) = 0;
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -0800211
212 /**
213 * Trigger auto-focus. The latest ID used in a trigger autofocus or cancel
214 * autofocus call will be returned by the HAL in all subsequent AF
215 * notifications.
216 */
217 virtual status_t triggerAutofocus(uint32_t id) = 0;
218
219 /**
220 * Cancel auto-focus. The latest ID used in a trigger autofocus/cancel
221 * autofocus call will be returned by the HAL in all subsequent AF
222 * notifications.
223 */
224 virtual status_t triggerCancelAutofocus(uint32_t id) = 0;
225
226 /**
227 * Trigger pre-capture metering. The latest ID used in a trigger pre-capture
228 * call will be returned by the HAL in all subsequent AE and AWB
229 * notifications.
230 */
231 virtual status_t triggerPrecaptureMetering(uint32_t id) = 0;
232
233 /**
234 * Abstract interface for clients that want to listen to reprocess buffer
235 * release events
236 */
237 struct BufferReleasedListener : public virtual RefBase {
238 virtual void onBufferReleased(buffer_handle_t *handle) = 0;
239 };
240
241 /**
242 * Push a buffer to be reprocessed into a reprocessing stream, and
243 * provide a listener to call once the buffer is returned by the HAL
244 */
245 virtual status_t pushReprocessBuffer(int reprocessStreamId,
246 buffer_handle_t *buffer, wp<BufferReleasedListener> listener) = 0;
Eino-Ville Talvalaabaa51d2013-08-14 11:37:00 -0700247
248 /**
249 * Flush all pending and in-flight requests. Blocks until flush is
250 * complete.
Jianing Weicb0652e2014-03-12 18:29:36 -0700251 * Output lastFrameNumber is the last frame number of the previous streaming request.
Eino-Ville Talvalaabaa51d2013-08-14 11:37:00 -0700252 */
Jianing Weicb0652e2014-03-12 18:29:36 -0700253 virtual status_t flush(int64_t *lastFrameNumber = NULL) = 0;
Eino-Ville Talvalaabaa51d2013-08-14 11:37:00 -0700254
Eino-Ville Talvala7fa43f32013-02-06 17:20:07 -0800255};
256
257}; // namespace android
258
259#endif