Merge "PatchTrack: Ensure enough data to write once" am: 4943e65b

{

    mProxy->releaseBuffer(buffer);

    restartIfDisabled();

    // Check if the PatchTrack has enough data to write once in releaseBuffer().

    // If not, prevent an underrun from occurring by moving the track into FS_FILLING;

    // this logic avoids glitches when suspending A2DP with AudioPlaybackCapture.

    // TODO: perhaps underrun avoidance could be a track property checked in isReady() instead.

    if (mFillingUpStatus == FS_ACTIVE

            && audio_is_linear_pcm(mFormat)

            && !isOffloadedOrDirect()) {

        if (sp<ThreadBase> thread = mThread.promote();

            thread != 0) {

            PlaybackThread *playbackThread = (PlaybackThread *)thread.get();

            const size_t frameCount = playbackThread->frameCount() * sampleRate()

                    / playbackThread->sampleRate();

            if (framesReady() < frameCount) {

                ALOGD("%s(%d) Not enough data, wait for buffer to fill", __func__, mId);

                mFillingUpStatus = FS_FILLING;

            }

        }

    }

}

void AudioFlinger::PlaybackThread::PatchTrack::restartIfDisabled()