NuPlayer: add pause timeout event for offload audio. (f5b1db11) · Commits · e / os / android_frameworks_av

media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp

+39 −1

Original line number	Diff line number	Diff line
		@@ -30,6 +30,10 @@

		namespace android {

		// Maximum time in paused state when offloading audio decompression. When elapsed, the AudioSink
		// is closed to allow the audio DSP to power down.
		static const int64_t kOffloadPauseMaxUs = 60000000ll;

		// static
		const int64_t NuPlayer::Renderer::kMinPositionUpdateDelayUs = 100000ll;

		@@ -59,7 +63,9 @@ NuPlayer::Renderer::Renderer(
		mVideoRenderingStartGeneration(0),
		mAudioRenderingStartGeneration(0),
		mLastPositionUpdateUs(-1ll),
		mVideoLateByUs(0ll) {
		mVideoLateByUs(0ll),
		mAudioOffloadPauseTimeoutGeneration(0),
		mAudioOffloadTornDown(false) {
		}

		NuPlayer::Renderer::~Renderer() {
		@@ -243,6 +249,17 @@ void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) {
		break;
		}

		case kWhatAudioOffloadPauseTimeout:
		{
		int32_t generation;
		CHECK(msg->findInt32("generation", &generation));
		if (generation != mAudioOffloadPauseTimeoutGeneration) {
		break;
		}
		onAudioOffloadTearDown();
		break;
		}

		default:
		TRESPASS();
		break;
		@@ -919,6 +936,7 @@ void NuPlayer::Renderer::onPause() {

		if (mHasAudio) {
		mAudioSink->pause();
		startAudioOffloadPauseTimeout();
		}

		ALOGV("now paused audio queue has %d entries, video has %d entries",
		@@ -931,6 +949,7 @@ void NuPlayer::Renderer::onResume() {
		}

		if (mHasAudio) {
		cancelAudioOffloadPauseTimeout();
		mAudioSink->start();
		}

		@@ -1012,6 +1031,11 @@ int64_t NuPlayer::Renderer::getPlayedOutAudioDurationUs(int64_t nowUs) {
		}

		void NuPlayer::Renderer::onAudioOffloadTearDown() {
		if (mAudioOffloadTornDown) {
		return;
		}
		mAudioOffloadTornDown = true;

		int64_t firstAudioTimeUs;
		{
		Mutex::Autolock autoLock(mLock);
		@@ -1030,5 +1054,19 @@ void NuPlayer::Renderer::onAudioOffloadTearDown() {
		notify->post();
		}

		void NuPlayer::Renderer::startAudioOffloadPauseTimeout() {
		if (offloadingAudio()) {
		sp<AMessage> msg = new AMessage(kWhatAudioOffloadPauseTimeout, id());
		msg->setInt32("generation", mAudioOffloadPauseTimeoutGeneration);
		msg->post(kOffloadPauseMaxUs);
		}
		}

		void NuPlayer::Renderer::cancelAudioOffloadPauseTimeout() {
		if (offloadingAudio()) {
		++mAudioOffloadPauseTimeoutGeneration;
		}
		}

		} // namespace android

media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -63,6 +63,7 @@ struct NuPlayer::Renderer : public AHandler {
		kWhatVideoRenderingStart = 'vdrd',
		kWhatMediaRenderingStart = 'mdrd',
		kWhatAudioOffloadTearDown = 'aOTD',
		kWhatAudioOffloadPauseTimeout = 'aOPT',
		};

		protected:
		@@ -127,6 +128,9 @@ private:
		int64_t mLastPositionUpdateUs;
		int64_t mVideoLateByUs;

		int32_t mAudioOffloadPauseTimeoutGeneration;
		bool mAudioOffloadTornDown;

		size_t fillAudioBuffer(void *buffer, size_t size);

		bool onDrainAudioQueue();
		@@ -162,6 +166,9 @@ private:

		bool offloadingAudio() const { return (mFlags & FLAG_OFFLOAD_AUDIO) != 0; }

		void startAudioOffloadPauseTimeout();
		void cancelAudioOffloadPauseTimeout();

		DISALLOW_EVIL_CONSTRUCTORS(Renderer);
		};