stagefright: enable temporal layering for timelapse and hfr recording (c96cfbe6) · Commits · e / os / android_frameworks_av

media/libmediaplayerservice/StagefrightRecorder.cpp

+16 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,8 @@
		#include "WebmWriter.h"
		#include "StagefrightRecorder.h"

		#include <algorithm>

		#include <android/hardware/ICamera.h>

		#include <binder/IPCThreadState.h>
		@@ -1565,9 +1567,23 @@ status_t StagefrightRecorder::setupVideoEncoder(
		format->setInt32("level", mVideoEncoderLevel);
		}

		uint32_t tsLayers = 0;
		format->setInt32("priority", 0 /* realtime */);
		if (mCaptureFpsEnable) {
		format->setFloat("operating-rate", mCaptureFps);

		// enable layering for all time lapse and high frame rate recordings
		if (mFrameRate / mCaptureFps >= 1.9 \|\| mCaptureFps / mFrameRate >= 1.9) {
		tsLayers = 2; // use at least two layers
		for (float fps = mCaptureFps / 1.9; fps > mFrameRate; fps /= 2) {
		++tsLayers;
		}

		uint32_t bLayers = std::min(2u, tsLayers - 1); // use up-to 2 B-layers
		uint32_t pLayers = tsLayers - bLayers;
		format->setString(
		"ts-schema", AStringPrintf("android.generic.%u+%u", pLayers, bLayers));
		}
		}

		if (mMetaDataStoredInVideoBuffers != kMetadataBufferTypeInvalid) {