status_t AudioOffloadPlayer::Play()
{
MOZ_ASSERT(NS_IsMainThread());
if (mResetTimer) {
mResetTimer->Cancel();
mResetTimer = nullptr;
WakeLockRelease();
}
status_t err = OK;
if (!mStarted) {
// Last pause timed out and offloaded audio sink was reset. Start it again
err = Start(false);
if (err != OK) {
return err;
}
// Seek to last play position only when there was no seek during last pause
if (!mSeeking) {
SeekTo(mPositionTimeMediaUs);
}
}
if (!mPlaying) {
CHECK(mAudioSink.get());
err = mAudioSink->Start();
if (err == OK) {
mPlaying = true;
}
}
return err;
}
void AudioOffloadPlayer::Reset()
{
MOZ_ASSERT(NS_IsMainThread());
if (!mStarted) {
return;
}
CHECK(mAudioSink.get());
AUDIO_OFFLOAD_LOG(PR_LOG_DEBUG, ("reset: mPlaying=%d mReachedEOS=%d",
mPlaying, mReachedEOS));
mAudioSink->Stop();
// If we're closing and have reached EOS, we don't want to flush
// the track because if it is offloaded there could be a small
// amount of residual data in the hardware buffer which we must
// play to give gapless playback.
// But if we're resetting when paused or before we've reached EOS
// we can't be doing a gapless playback and there could be a large
// amount of data queued in the hardware if the track is offloaded,
// so we must flush to prevent a track switch being delayed playing
// the buffered data that we don't want now
if (!mPlaying || !mReachedEOS) {
mAudioSink->Flush();
}
mAudioSink->Close();
// Make sure to release any buffer we hold onto so that the
// source is able to stop().
if (mInputBuffer) {
AUDIO_OFFLOAD_LOG(PR_LOG_DEBUG, ("Releasing input buffer"));
mInputBuffer->release();
mInputBuffer = nullptr;
}
mSource->stop();
IPCThreadState::self()->flushCommands();
StopTimeUpdate();
mReachedEOS = false;
mStarted = false;
mPlaying = false;
mStartPosUs = 0;
WakeLockRelease();
}
status_t AudioOffloadPlayer::Play()
{
MOZ_ASSERT(NS_IsMainThread());
if (mResetTimer) {
mResetTimer->Cancel();
mResetTimer = nullptr;
WakeLockRelease();
}
status_t err = OK;
if (!mStarted) {
// Last pause timed out and offloaded audio sink was reset. Start it again
err = Start(false);
if (err != OK) {
return err;
}
// Seek to last play position only when there was no seek during last pause
android::Mutex::Autolock autoLock(mLock);
if (!mSeekTarget.IsValid()) {
mSeekTarget = SeekTarget(mPositionTimeMediaUs,
SeekTarget::Accurate,
MediaDecoderEventVisibility::Suppressed);
DoSeek();
}
}
if (!mPlaying) {
CHECK(mAudioSink.get());
err = mAudioSink->Start();
if (err == OK) {
mPlaying = true;
}
}
return err;
}
