Merge "Limit cached timestamp use if HW fails to provide them" into nyc-dev (0256917c) · Commits · e / os / android_frameworks_av

media/libmedia/AudioTrack.cpp

+6 −1

Original line number	Diff line number	Diff line
		@@ -2374,9 +2374,14 @@ status_t AudioTrack::getTimestamp(AudioTimestamp& timestamp)
		if (location == ExtendedTimestamp::LOCATION_SERVER) {
		ALOGW_IF(mPreviousLocation == ExtendedTimestamp::LOCATION_KERNEL,
		"getTimestamp() location moved from kernel to server");
		// check that the last kernel OK time info exists and the positions
		// are valid (if they predate the current track, the positions may
		// be zero or negative).
		const int64_t frames =
		(ets.mTimeNs[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK] < 0 \|\|
		ets.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] < 0)
		ets.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] < 0 \|\|
		ets.mPosition[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK] <= 0 \|\|
		ets.mPosition[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] <= 0)
		?
		int64_t((double)mAfLatency * mSampleRate * mPlaybackRate.mSpeed
		/ 1000)

+4 −2

Original line number	Diff line number	Diff line
		@@ -482,8 +482,6 @@ void FastMixer::onWork()
		} else {
		// HAL reported that more frames were presented than were written
		mNativeFramesWrittenButNotPresented = 0;
		mTimestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = 0;
		mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL] = -1;
		status = INVALID_OPERATION;
		}
		}
		@@ -494,6 +492,10 @@ void FastMixer::onWork()
		// fetch server time if we can't get timestamp
		mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] =
		systemTime(SYSTEM_TIME_MONOTONIC);
		// clear out kernel cached position as this may get rapidly stale
		// if we never get a new valid timestamp
		mTimestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = 0;
		mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL] = -1;
		}
		}
		}