Merge "Camera: Limit framerate re-configurations during HFR" into pi-dev (dc784769) · Commits · e / os / android_frameworks_av

services/camera/libcameraservice/device3/Camera3Device.cpp

+16 −1

Original line number	Diff line number	Diff line
		@@ -4045,6 +4045,7 @@ Camera3Device::RequestThread::RequestThread(wp<Camera3Device> parent,
		mRepeatingLastFrameNumber(
		hardware::camera2::ICameraDeviceUser::NO_IN_FLIGHT_REPEATING_FRAMES),
		mPrepareVideoStream(false),
		mConstrainedMode(false),
		mRequestLatency(kRequestLatencyBinSize),
		mSessionParamKeys(sessionParamKeys),
		mLatestSessionParams(sessionParamKeys.size()) {
		@@ -4068,6 +4069,7 @@ void Camera3Device::RequestThread::configurationComplete(bool isConstrainedHighS
		mLatestSessionParams = sessionParams;
		// Prepare video stream for high speed recording.
		mPrepareVideoStream = isConstrainedHighSpeed;
		mConstrainedMode = isConstrainedHighSpeed;
		}

		status_t Camera3Device::RequestThread::queueRequestList(
		@@ -4482,6 +4484,17 @@ nsecs_t Camera3Device::RequestThread::calculateMaxExpectedDuration(const camera_
		return maxExpectedDuration;
		}

		bool Camera3Device::RequestThread::skipHFRTargetFPSUpdate(int32_t tag,
		const camera_metadata_ro_entry_t& newEntry, const camera_metadata_entry_t& currentEntry) {
		if (mConstrainedMode && (ANDROID_CONTROL_AE_TARGET_FPS_RANGE == tag) &&
		(newEntry.count == currentEntry.count) && (currentEntry.count == 2) &&
		(currentEntry.data.i32[1] == newEntry.data.i32[1])) {
		return true;
		}

		return false;
		}

		bool Camera3Device::RequestThread::updateSessionParameters(const CameraMetadata& settings) {
		ATRACE_CALL();
		bool updatesDetected = false;
		@@ -4514,9 +4527,11 @@ bool Camera3Device::RequestThread::updateSessionParameters(const CameraMetadata&

		if (isDifferent) {
		ALOGV("%s: Session parameter tag id %d changed", __FUNCTION__, tag);
		mLatestSessionParams.update(entry);
		if (!skipHFRTargetFPSUpdate(tag, entry, lastEntry)) {
		updatesDetected = true;
		}
		mLatestSessionParams.update(entry);
		}
		} else if (lastEntry.count > 0) {
		// Value has been removed
		ALOGV("%s: Session parameter tag id %d removed", __FUNCTION__, tag);

services/camera/libcameraservice/device3/Camera3Device.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -861,6 +861,11 @@ class Camera3Device :
		// Check and update latest session parameters based on the current request settings.
		bool updateSessionParameters(const CameraMetadata& settings);

		// Check whether FPS range session parameter re-configuration is needed in constrained
		// high speed recording camera sessions.
		bool skipHFRTargetFPSUpdate(int32_t tag, const camera_metadata_ro_entry_t& newEntry,
		const camera_metadata_entry_t& currentEntry);

		// Re-configure camera using the latest session parameters.
		bool reconfigureCamera();

		@@ -919,6 +924,8 @@ class Camera3Device :
		// Flag indicating if we should prepare video stream for video requests.
		bool mPrepareVideoStream;

		bool mConstrainedMode;

		static const int32_t kRequestLatencyBinSize = 40; // in ms
		CameraLatencyHistogram mRequestLatency;