Merge "Fix issue 3217707." (8261a1ca) · Commits · e / os / android_frameworks_base

services/audioflinger/A2dpAudioInterface.cpp

+12 −1

Original line number	Diff line number	Diff line
		@@ -260,6 +260,7 @@ status_t A2dpAudioInterface::A2dpAudioStreamOut::set(
		if (pRate) *pRate = lRate;

		mDevice = device;
		mBufferDurationUs = ((bufferSize() * 1000 )/ frameSize() / sampleRate()) * 1000;
		return NO_ERROR;
		}

		@@ -288,6 +289,7 @@ ssize_t A2dpAudioInterface::A2dpAudioStreamOut::write(const void* buffer, size_t
		if (mStandby) {
		acquire_wake_lock (PARTIAL_WAKE_LOCK, sA2dpWakeLock);
		mStandby = false;
		mLastWriteTime = systemTime();
		}

		status = init();
		@@ -308,6 +310,15 @@ ssize_t A2dpAudioInterface::A2dpAudioStreamOut::write(const void* buffer, size_t
		buffer = (char *)buffer + status;
		}

		// if A2DP sink runs abnormally fast, sleep a little so that audioflinger mixer thread
		// does no spin and starve other threads.
		// NOTE: It is likely that the A2DP headset is being disconnected
		nsecs_t now = systemTime();
		if ((uint32_t)ns2us(now - mLastWriteTime) < (mBufferDurationUs >> 2)) {
		LOGV("A2DP sink runs too fast");
		usleep(mBufferDurationUs - (uint32_t)ns2us(now - mLastWriteTime));
		}
		mLastWriteTime = now;
		return bytes;

		}
		@@ -316,7 +327,7 @@ Error:
		standby();

		// Simulate audio output timing in case of error
		usleep(((bytes * 1000 )/ frameSize() / sampleRate()) * 1000);
		usleep(mBufferDurationUs);

		return status;
		}

+2 −0

Original line number	Diff line number	Diff line
		@@ -117,6 +117,8 @@ private:
		uint32_t mDevice;
		bool mClosing;
		bool mSuspended;
		nsecs_t mLastWriteTime;
		uint32_t mBufferDurationUs;
		};

		friend class A2dpAudioStreamOut;