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Merge "SoundPool: Clean up Stream::play_l logic for garbage collection"

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This commit is contained in:
Andy Hung
2022-01-11 17:49:55 +00:00
committed by Gerrit Code Review
parent efa03939f0 71791c0e0c
commit 3c44833a91
1 changed files with 89 additions and 103 deletions
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192
media/jni/soundpool/Stream.cpp
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@@ -275,118 +275,104 @@ void Stream::play_l(const std::shared_ptr<Sound>& sound, int32_t nextStreamID,
float leftVolume, float rightVolume, int32_t priority, int32_t loop, float rate,
std::vector<std::any>& garbage)
{
// oldTrack and newTrack are placeholders to be released by garbage without the lock.
sp<AudioTrack> oldTrack;
sp<AudioTrack> newTrack;
status_t status = NO_ERROR;
ALOGV("%s(%p)(soundID=%d, streamID=%d, leftVolume=%f, rightVolume=%f,"
" priority=%d, loop=%d, rate=%f)",
__func__, this, sound->getSoundID(), nextStreamID, leftVolume, rightVolume,
priority, loop, rate);
{
ALOGV("%s(%p)(soundID=%d, streamID=%d, leftVolume=%f, rightVolume=%f,"
" priority=%d, loop=%d, rate=%f)",
__func__, this, sound->getSoundID(), nextStreamID, leftVolume, rightVolume,
priority, loop, rate);
// initialize track
const audio_stream_type_t streamType =
AudioSystem::attributesToStreamType(*mStreamManager->getAttributes());
const int32_t channelCount = sound->getChannelCount();
const auto sampleRate = (uint32_t)lround(double(sound->getSampleRate()) * rate);
size_t frameCount = 0;
// initialize track
const audio_stream_type_t streamType =
AudioSystem::attributesToStreamType(*mStreamManager->getAttributes());
const int32_t channelCount = sound->getChannelCount();
const auto sampleRate = (uint32_t)lround(double(sound->getSampleRate()) * rate);
size_t frameCount = 0;
if (loop) {
const audio_format_t format = sound->getFormat();
const size_t frameSize = audio_is_linear_pcm(format)
? channelCount * audio_bytes_per_sample(format) : 1;
frameCount = sound->getSizeInBytes() / frameSize;
}
if (loop) {
const audio_format_t format = sound->getFormat();
const size_t frameSize = audio_is_linear_pcm(format)
? channelCount * audio_bytes_per_sample(format) : 1;
frameCount = sound->getSizeInBytes() / frameSize;
}
// check if the existing track has the same sound id.
if (mAudioTrack != nullptr && mSoundID == sound->getSoundID()) {
if (mAudioTrack != nullptr) {
if (mSoundID == sound->getSoundID()
&& mAudioTrack->setSampleRate(sampleRate) == NO_ERROR) {
// Reuse the old track if the soundID matches.
// the sample rate may fail to change if the audio track is a fast track.
if (mAudioTrack->setSampleRate(sampleRate) == NO_ERROR) {
newTrack = mAudioTrack;
ALOGV("%s: reusing track %p for sound %d",
__func__, mAudioTrack.get(), sound->getSoundID());
}
}
if (newTrack == nullptr) {
// mToggle toggles each time a track is started on a given stream.
// The toggle is concatenated with the Stream address and passed to AudioTrack
// as callback user data. This enables the detection of callbacks received from the old
// audio track while the new one is being started and avoids processing them with
// wrong audio audio buffer size (mAudioBufferSize)
auto toggle = mToggle ^ 1;
// NOLINTNEXTLINE(performance-no-int-to-ptr)
void* userData = reinterpret_cast<void*>((uintptr_t)this | toggle);
audio_channel_mask_t soundChannelMask = sound->getChannelMask();
// When sound contains a valid channel mask, use it as is.
// Otherwise, use stream count to calculate channel mask.
audio_channel_mask_t channelMask = soundChannelMask != AUDIO_CHANNEL_NONE
? soundChannelMask : audio_channel_out_mask_from_count(channelCount);
// do not create a new audio track if current track is compatible with sound parameters
android::content::AttributionSourceState attributionSource;
attributionSource.packageName = mStreamManager->getOpPackageName();
attributionSource.token = sp<BBinder>::make();
// TODO b/182469354 make consistent with AudioRecord, add util for native source
newTrack = new AudioTrack(streamType, sampleRate, sound->getFormat(),
channelMask, sound->getIMemory(), AUDIO_OUTPUT_FLAG_FAST,
staticCallback, userData,
0 /*default notification frames*/, AUDIO_SESSION_ALLOCATE,
AudioTrack::TRANSFER_DEFAULT,
nullptr /*offloadInfo*/, attributionSource,
mStreamManager->getAttributes(),
false /*doNotReconnect*/, 1.0f /*maxRequiredSpeed*/);
// Set caller name so it can be logged in destructor.
// MediaMetricsConstants.h: AMEDIAMETRICS_PROP_CALLERNAME_VALUE_SOUNDPOOL
newTrack->setCallerName("soundpool");
oldTrack = mAudioTrack;
status = newTrack->initCheck();
if (status != NO_ERROR) {
ALOGE("%s: error creating AudioTrack", __func__);
// newTrack goes out of scope, so reference count drops to zero
goto exit;
}
// From now on, AudioTrack callbacks received with previous toggle value will be ignored.
mToggle = toggle;
mAudioTrack = newTrack;
ALOGV("%s: using new track %p for sound %d",
__func__, newTrack.get(), sound->getSoundID());
}
if (mMuted) {
newTrack->setVolume(0.0f, 0.0f);
ALOGV("%s: reusing track %p for sound %d",
__func__, mAudioTrack.get(), sound->getSoundID());
} else {
newTrack->setVolume(leftVolume, rightVolume);
// If reuse not possible, move mAudioTrack to garbage, set to nullptr.
garbage.emplace_back(std::move(mAudioTrack));
mAudioTrack.clear(); // move should have cleared the sp<>, but we clear just in case.
}
newTrack->setLoop(0, frameCount, loop);
mAudioTrack->start();
mSound = sound;
mSoundID = sound->getSoundID();
mPriority = priority;
mLoop = loop;
mLeftVolume = leftVolume;
mRightVolume = rightVolume;
mRate = rate;
mState = PLAYING;
mStopTimeNs = 0;
mStreamID = nextStreamID; // prefer this to be the last, as it is an atomic sync point
}
if (mAudioTrack == nullptr) {
// mToggle toggles each time a track is started on a given stream.
// The toggle is concatenated with the Stream address and passed to AudioTrack
// as callback user data. This enables the detection of callbacks received from the old
// audio track while the new one is being started and avoids processing them with
// wrong audio audio buffer size (mAudioBufferSize)
auto toggle = mToggle ^ 1;
// NOLINTNEXTLINE(performance-no-int-to-ptr)
void* userData = reinterpret_cast<void*>((uintptr_t)this | toggle);
audio_channel_mask_t soundChannelMask = sound->getChannelMask();
// When sound contains a valid channel mask, use it as is.
// Otherwise, use stream count to calculate channel mask.
audio_channel_mask_t channelMask = soundChannelMask != AUDIO_CHANNEL_NONE
? soundChannelMask : audio_channel_out_mask_from_count(channelCount);
exit:
ALOGV("%s: delete oldTrack %p", __func__, oldTrack.get());
if (status != NO_ERROR) {
// TODO: should we consider keeping the soundID if the old track is OK?
// Do not attempt to restart this track (should we remove the stream id?)
mState = IDLE;
mSoundID = 0;
mSound.reset();
mAudioTrack.clear(); // actual release from garbage
// do not create a new audio track if current track is compatible with sound parameters
android::content::AttributionSourceState attributionSource;
attributionSource.packageName = mStreamManager->getOpPackageName();
attributionSource.token = sp<BBinder>::make();
// TODO b/182469354 make consistent with AudioRecord, add util for native source
mAudioTrack = new AudioTrack(streamType, sampleRate, sound->getFormat(),
channelMask, sound->getIMemory(), AUDIO_OUTPUT_FLAG_FAST,
staticCallback, userData,
0 /*default notification frames*/, AUDIO_SESSION_ALLOCATE,
AudioTrack::TRANSFER_DEFAULT,
nullptr /*offloadInfo*/, attributionSource,
mStreamManager->getAttributes(),
false /*doNotReconnect*/, 1.0f /*maxRequiredSpeed*/);
// Set caller name so it can be logged in destructor.
// MediaMetricsConstants.h: AMEDIAMETRICS_PROP_CALLERNAME_VALUE_SOUNDPOOL
mAudioTrack->setCallerName("soundpool");
if (status_t status = mAudioTrack->initCheck();
status != NO_ERROR) {
ALOGE("%s: error %d creating AudioTrack", __func__, status);
// TODO: should we consider keeping the soundID and reusing the old track?
mState = IDLE;
mSoundID = 0;
mSound.reset();
garbage.emplace_back(std::move(mAudioTrack)); // remove mAudioTrack.
mAudioTrack.clear(); // move should have cleared the sp<>, but we clear just in case.
return;
}
// From now on, AudioTrack callbacks received with previous toggle value will be ignored.
mToggle = toggle;
ALOGV("%s: using new track %p for sound %d",
__func__, mAudioTrack.get(), sound->getSoundID());
}
// move tracks to garbage to be released later outside of lock.
if (newTrack) garbage.emplace_back(std::move(newTrack));
if (oldTrack) garbage.emplace_back(std::move(oldTrack));
if (mMuted) {
mAudioTrack->setVolume(0.f, 0.f);
} else {
mAudioTrack->setVolume(leftVolume, rightVolume);
}
mAudioTrack->setLoop(0, frameCount, loop);
mAudioTrack->start();
mSound = sound;
mSoundID = sound->getSoundID();
mPriority = priority;
mLoop = loop;
mLeftVolume = leftVolume;
mRightVolume = rightVolume;
mRate = rate;
mState = PLAYING;
mStopTimeNs = 0;
mStreamID = nextStreamID; // prefer this to be the last, as it is an atomic sync point
}
/* static */