DynamicCamera: Injection camera switching mechanism in Camera3Device
- When injectCamera() is called, it will first initialize the injection and generate the hal interface, wait until the internal camera creates output streams and configure it, and then continues to replace internal camera and configure the injection stream.
- When stopInjection is called or Device3Camera is disconnected, will close injection and delete the hal interface.
Bug: 181735245
Test: Manual
Change-Id: Ib7209c25e3d2cb9b8d717941660590e68c9435ef
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index d93b9e5..d05a2e1 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -49,6 +49,7 @@
#include <utils/Timers.h>
#include <cutils/properties.h>
+#include <android/hardware/camera/device/3.7/ICameraInjectionSession.h>
#include <android/hardware/camera2/ICameraDeviceUser.h>
#include "utils/CameraTraces.h"
@@ -358,6 +359,8 @@
}
}
+ mInjectionMethods = new Camera3DeviceInjectionMethods(this);
+
return OK;
}
@@ -431,6 +434,10 @@
mStatusTracker->join();
}
+ if (mInjectionMethods->isInjecting()) {
+ mInjectionMethods->stopInjection();
+ }
+
HalInterface* interface;
{
Mutex::Autolock l(mLock);
@@ -1829,7 +1836,6 @@
return res;
}
-
void Camera3Device::internalUpdateStatusLocked(Status status) {
mStatus = status;
mRecentStatusUpdates.add(mStatus);
@@ -2820,6 +2826,19 @@
mRequestBufferSM.onStreamsConfigured();
}
+ // Since the streams configuration of the injection camera is based on the internal camera, we
+ // must wait until the internal camera configure streams before calling injectCamera() to
+ // configure the injection streams.
+ if (mInjectionMethods->isInjecting()) {
+ ALOGV("%s: Injection camera %s: Start to configure streams.",
+ __FUNCTION__, mInjectionMethods->getInjectedCamId().string());
+ res = mInjectionMethods->injectCamera(config, bufferSizes);
+ if (res != OK) {
+ ALOGE("Can't finish inject camera process!");
+ return res;
+ }
+ }
+
return OK;
}
@@ -3524,6 +3543,146 @@
return res;
}
+status_t Camera3Device::HalInterface::configureInjectedStreams(
+ const camera_metadata_t* sessionParams, camera_stream_configuration* config,
+ const std::vector<uint32_t>& bufferSizes,
+ const CameraMetadata& cameraCharacteristics) {
+ ATRACE_NAME("InjectionCameraHal::configureStreams");
+ if (!valid()) return INVALID_OPERATION;
+ status_t res = OK;
+
+ if (config->input_is_multi_resolution) {
+ ALOGE("%s: Injection camera device doesn't support multi-resolution input "
+ "stream", __FUNCTION__);
+ return BAD_VALUE;
+ }
+
+ // Convert stream config to HIDL
+ std::set<int> activeStreams;
+ device::V3_2::StreamConfiguration requestedConfiguration3_2;
+ device::V3_4::StreamConfiguration requestedConfiguration3_4;
+ device::V3_7::StreamConfiguration requestedConfiguration3_7;
+ requestedConfiguration3_2.streams.resize(config->num_streams);
+ requestedConfiguration3_4.streams.resize(config->num_streams);
+ requestedConfiguration3_7.streams.resize(config->num_streams);
+ for (size_t i = 0; i < config->num_streams; i++) {
+ device::V3_2::Stream& dst3_2 = requestedConfiguration3_2.streams[i];
+ device::V3_4::Stream& dst3_4 = requestedConfiguration3_4.streams[i];
+ device::V3_7::Stream& dst3_7 = requestedConfiguration3_7.streams[i];
+ camera3::camera_stream_t* src = config->streams[i];
+
+ Camera3Stream* cam3stream = Camera3Stream::cast(src);
+ cam3stream->setBufferFreedListener(this);
+ int streamId = cam3stream->getId();
+ StreamType streamType;
+ switch (src->stream_type) {
+ case CAMERA_STREAM_OUTPUT:
+ streamType = StreamType::OUTPUT;
+ break;
+ case CAMERA_STREAM_INPUT:
+ streamType = StreamType::INPUT;
+ break;
+ default:
+ ALOGE("%s: Stream %d: Unsupported stream type %d", __FUNCTION__,
+ streamId, config->streams[i]->stream_type);
+ return BAD_VALUE;
+ }
+ dst3_2.id = streamId;
+ dst3_2.streamType = streamType;
+ dst3_2.width = src->width;
+ dst3_2.height = src->height;
+ dst3_2.usage = mapToConsumerUsage(cam3stream->getUsage());
+ dst3_2.rotation =
+ mapToStreamRotation((camera_stream_rotation_t)src->rotation);
+ // For HidlSession version 3.5 or newer, the format and dataSpace sent
+ // to HAL are original, not the overridden ones.
+ if (mHidlSession_3_5 != nullptr) {
+ dst3_2.format = mapToPixelFormat(cam3stream->isFormatOverridden()
+ ? cam3stream->getOriginalFormat()
+ : src->format);
+ dst3_2.dataSpace =
+ mapToHidlDataspace(cam3stream->isDataSpaceOverridden()
+ ? cam3stream->getOriginalDataSpace()
+ : src->data_space);
+ } else {
+ dst3_2.format = mapToPixelFormat(src->format);
+ dst3_2.dataSpace = mapToHidlDataspace(src->data_space);
+ }
+ dst3_4.v3_2 = dst3_2;
+ dst3_4.bufferSize = bufferSizes[i];
+ if (src->physical_camera_id != nullptr) {
+ dst3_4.physicalCameraId = src->physical_camera_id;
+ }
+ dst3_7.v3_4 = dst3_4;
+ dst3_7.groupId = cam3stream->getHalStreamGroupId();
+ dst3_7.sensorPixelModesUsed.resize(src->sensor_pixel_modes_used.size());
+ size_t j = 0;
+ for (int mode : src->sensor_pixel_modes_used) {
+ dst3_7.sensorPixelModesUsed[j++] =
+ static_cast<CameraMetadataEnumAndroidSensorPixelMode>(mode);
+ }
+ activeStreams.insert(streamId);
+ // Create Buffer ID map if necessary
+ mBufferRecords.tryCreateBufferCache(streamId);
+ }
+ // remove BufferIdMap for deleted streams
+ mBufferRecords.removeInactiveBufferCaches(activeStreams);
+
+ StreamConfigurationMode operationMode;
+ res = mapToStreamConfigurationMode(
+ (camera_stream_configuration_mode_t)config->operation_mode,
+ /*out*/ &operationMode);
+ if (res != OK) {
+ return res;
+ }
+ requestedConfiguration3_7.operationMode = operationMode;
+ size_t sessionParamSize = get_camera_metadata_size(sessionParams);
+ requestedConfiguration3_7.operationMode = operationMode;
+ requestedConfiguration3_7.sessionParams.setToExternal(
+ reinterpret_cast<uint8_t*>(const_cast<camera_metadata_t*>(sessionParams)),
+ sessionParamSize);
+
+ // See which version of HAL we have
+ if (mHidlSession_3_7 != nullptr) {
+ requestedConfiguration3_7.streamConfigCounter = mNextStreamConfigCounter++;
+ requestedConfiguration3_7.multiResolutionInputImage =
+ config->input_is_multi_resolution;
+
+ const camera_metadata_t* rawMetadata = cameraCharacteristics.getAndLock();
+ ::android::hardware::camera::device::V3_2::CameraMetadata hidlChars = {};
+ hidlChars.setToExternal(
+ reinterpret_cast<uint8_t*>(const_cast<camera_metadata_t*>(rawMetadata)),
+ get_camera_metadata_size(rawMetadata));
+ cameraCharacteristics.unlock(rawMetadata);
+
+ sp<hardware::camera::device::V3_7::ICameraInjectionSession>
+ hidlInjectionSession_3_7;
+ auto castInjectionResult_3_7 =
+ device::V3_7::ICameraInjectionSession::castFrom(mHidlSession_3_7);
+ if (castInjectionResult_3_7.isOk()) {
+ hidlInjectionSession_3_7 = castInjectionResult_3_7;
+ } else {
+ ALOGE("%s: Transaction error: %s", __FUNCTION__,
+ castInjectionResult_3_7.description().c_str());
+ return DEAD_OBJECT;
+ }
+
+ auto err = hidlInjectionSession_3_7->configureInjectionStreams(
+ requestedConfiguration3_7, hidlChars);
+ if (!err.isOk()) {
+ ALOGE("%s: Transaction error: %s", __FUNCTION__,
+ err.description().c_str());
+ return DEAD_OBJECT;
+ }
+ } else {
+ ALOGE("%s: mHidlSession_3_7 does not exist, the lowest version of injection "
+ "session is 3.7", __FUNCTION__);
+ return DEAD_OBJECT;
+ }
+
+ return res;
+}
+
status_t Camera3Device::HalInterface::wrapAsHidlRequest(camera_capture_request_t* request,
/*out*/device::V3_2::CaptureRequest* captureRequest,
/*out*/std::vector<native_handle_t*>* handlesCreated,
@@ -5724,6 +5883,18 @@
return changed;
}
+status_t Camera3Device::RequestThread::setHalInterface(
+ sp<HalInterface> newHalInterface) {
+ if (newHalInterface.get() == nullptr) {
+ ALOGE("%s: The newHalInterface does not exist!", __FUNCTION__);
+ return DEAD_OBJECT;
+ }
+
+ mInterface = newHalInterface;
+
+ return OK;
+}
+
/**
* PreparerThread inner class methods
*/
@@ -6367,4 +6538,58 @@
return mRequestThread->setCameraMute(enabled);
}
+status_t Camera3Device::injectCamera(const String8& injectedCamId,
+ sp<CameraProviderManager> manager) {
+ ALOGI("%s Injection camera: injectedCamId = %s", __FUNCTION__, injectedCamId.string());
+ ATRACE_CALL();
+ Mutex::Autolock il(mInterfaceLock);
+
+ status_t res = NO_ERROR;
+ if (mInjectionMethods->isInjecting()) {
+ if (injectedCamId == mInjectionMethods->getInjectedCamId()) {
+ return OK;
+ } else {
+ res = mInjectionMethods->stopInjection();
+ if (res != OK) {
+ ALOGE("%s: Failed to stop the injection camera! ret != NO_ERROR: %d",
+ __FUNCTION__, res);
+ return res;
+ }
+ }
+ }
+
+ res = mInjectionMethods->injectionInitialize(injectedCamId, manager, this);
+ if (res != OK) {
+ ALOGE("%s: Failed to initialize the injection camera! ret != NO_ERROR: %d",
+ __FUNCTION__, res);
+ return res;
+ }
+
+ camera3::camera_stream_configuration injectionConfig;
+ std::vector<uint32_t> injectionBufferSizes;
+ mInjectionMethods->getInjectionConfig(&injectionConfig, &injectionBufferSizes);
+ // When the second display of android is cast to the remote device, and the opened camera is
+ // also cast to the second display, in this case, because the camera has configured the streams
+ // at this time, we can directly call injectCamera() to replace the internal camera with
+ // injection camera.
+ if (mOperatingMode >= 0 && injectionConfig.num_streams > 0
+ && injectionBufferSizes.size() > 0) {
+ ALOGV("%s: The opened camera is directly cast to the remote device.", __FUNCTION__);
+ res = mInjectionMethods->injectCamera(
+ injectionConfig, injectionBufferSizes);
+ if (res != OK) {
+ ALOGE("Can't finish inject camera process!");
+ return res;
+ }
+ }
+
+ return OK;
+}
+
+status_t Camera3Device::stopInjection() {
+ ALOGI("%s: Injection camera: stopInjection", __FUNCTION__);
+ Mutex::Autolock il(mInterfaceLock);
+ return mInjectionMethods->stopInjection();
+}
+
}; // namespace android