Merge "Smooth out AwesomePlayer" (b52675e9) · Commits · e / os / android_frameworks_av

media/libstagefright/AwesomePlayer.cpp

+22 −4

Original line number	Diff line number	Diff line
		@@ -40,6 +40,7 @@
		#include <media/stagefright/foundation/ADebug.h>
		#include <media/stagefright/timedtext/TimedTextDriver.h>
		#include <media/stagefright/AudioPlayer.h>
		#include <media/stagefright/ClockEstimator.h>
		#include <media/stagefright/DataSource.h>
		#include <media/stagefright/FileSource.h>
		#include <media/stagefright/MediaBuffer.h>
		@@ -228,6 +229,8 @@ AwesomePlayer::AwesomePlayer()
		&AwesomePlayer::onAudioTearDownEvent);
		mAudioTearDownEventPending = false;

		mClockEstimator = new WindowedLinearFitEstimator();

		reset();
		}

		@@ -1859,21 +1862,27 @@ void AwesomePlayer::onVideoEvent() {
		TimeSource *ts =
		((mFlags & AUDIO_AT_EOS) \|\| !(mFlags & AUDIOPLAYER_STARTED))
		? &mSystemTimeSource : mTimeSource;
		int64_t systemTimeUs = mSystemTimeSource.getRealTimeUs();

		if (mFlags & FIRST_FRAME) {
		modifyFlags(FIRST_FRAME, CLEAR);
		mSinceLastDropped = 0;
		mTimeSourceDeltaUs = ts->getRealTimeUs() - timeUs;
		mClockEstimator->reset();
		mTimeSourceDeltaUs = estimateRealTimeUs(ts, systemTimeUs) - timeUs;
		}

		int64_t realTimeUs, mediaTimeUs;
		if (!(mFlags & AUDIO_AT_EOS) && mAudioPlayer != NULL
		&& mAudioPlayer->getMediaTimeMapping(&realTimeUs, &mediaTimeUs)) {
		ALOGV("updating TSdelta (%" PRId64 " => %" PRId64 " change %" PRId64 ")",
		mTimeSourceDeltaUs, realTimeUs - mediaTimeUs,
		mTimeSourceDeltaUs - (realTimeUs - mediaTimeUs));
		ATRACE_INT("TS delta change (ms)", (mTimeSourceDeltaUs - (realTimeUs - mediaTimeUs)) / 1E3);
		mTimeSourceDeltaUs = realTimeUs - mediaTimeUs;
		}

		if (wasSeeking == SEEK_VIDEO_ONLY) {
		int64_t nowUs = ts->getRealTimeUs() - mTimeSourceDeltaUs;
		int64_t nowUs = estimateRealTimeUs(ts, systemTimeUs) - mTimeSourceDeltaUs;

		int64_t latenessUs = nowUs - timeUs;

		@@ -1887,7 +1896,7 @@ void AwesomePlayer::onVideoEvent() {
		if (wasSeeking == NO_SEEK) {
		// Let's display the first frame after seeking right away.

		int64_t nowUs = ts->getRealTimeUs() - mTimeSourceDeltaUs;
		int64_t nowUs = estimateRealTimeUs(ts, systemTimeUs) - mTimeSourceDeltaUs;

		int64_t latenessUs = nowUs - timeUs;

		@@ -2009,7 +2018,8 @@ void AwesomePlayer::onVideoEvent() {

		int64_t nextTimeUs;
		CHECK(mVideoBuffer->meta_data()->findInt64(kKeyTime, &nextTimeUs));
		int64_t delayUs = nextTimeUs - ts->getRealTimeUs() + mTimeSourceDeltaUs;
		systemTimeUs = mSystemTimeSource.getRealTimeUs();
		int64_t delayUs = nextTimeUs - estimateRealTimeUs(ts, systemTimeUs) + mTimeSourceDeltaUs;
		ATRACE_INT("Frame delta (ms)", (nextTimeUs - timeUs) / 1E3);
		ALOGV("next frame in %" PRId64, delayUs);
		// try to schedule at least 12ms before due time, or just on time
		@@ -2020,6 +2030,14 @@ void AwesomePlayer::onVideoEvent() {
		postVideoEvent_l();
		}

		int64_t AwesomePlayer::estimateRealTimeUs(TimeSource *ts, int64_t systemTimeUs) {
		if (ts == &mSystemTimeSource) {
		return systemTimeUs;
		} else {
		return (int64_t)mClockEstimator->estimate(systemTimeUs, ts->getRealTimeUs());
		}
		}

		void AwesomePlayer::postVideoEvent_l(int64_t delayUs) {
		ATRACE_CALL();

media/libstagefright/include/AwesomePlayer.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@
		namespace android {

		struct AudioPlayer;
		struct ClockEstimator;
		struct DataSource;
		struct MediaBuffer;
		struct MediaExtractor;
		@@ -234,6 +235,7 @@ private:

		MediaBuffer *mVideoBuffer;

		sp<ClockEstimator> mClockEstimator;
		sp<HTTPBase> mConnectingDataSource;
		sp<NuCachedSource2> mCachedSource;

		@@ -293,6 +295,7 @@ private:

		bool getBitrate(int64_t *bitrate);

		int64_t estimateRealTimeUs(TimeSource *ts, int64_t systemTimeUs);
		void finishSeekIfNecessary(int64_t videoTimeUs);
		void ensureCacheIsFetching_l();