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treble_evolution/audio/hal/StreamOut.cpp
YukiMetaa 007b3bf00c Upload
2024-03-10 06:48:11 +00:00

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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "StreamOutHAL"
#include "StreamOut.h"
#include "Util.h"
//#define LOG_NDEBUG 0
#define ATRACE_TAG ATRACE_TAG_AUDIO
#include <string.h>
#include <memory>
#include <HidlUtils.h>
#include <android/log.h>
#include <audio_utils/Metadata.h>
#include <hardware/audio.h>
#include <util/CoreUtils.h>
#include <utils/Trace.h>
namespace android {
namespace hardware {
namespace audio {
namespace CPP_VERSION {
namespace implementation {
using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
using ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::CoreUtils;
namespace util {
using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION::implementation::util;
}
namespace {
class WriteThread : public Thread {
public:
// WriteThread's lifespan never exceeds StreamOut's lifespan.
WriteThread(std::atomic<bool>* stop, audio_stream_out_t* stream,
StreamOut::CommandMQ* commandMQ, StreamOut::DataMQ* dataMQ,
StreamOut::StatusMQ* statusMQ, EventFlag* efGroup)
: Thread(false /*canCallJava*/),
mStop(stop),
mStream(stream),
mCommandMQ(commandMQ),
mDataMQ(dataMQ),
mStatusMQ(statusMQ),
mEfGroup(efGroup),
mBuffer(nullptr) {}
bool init() {
mBuffer.reset(new (std::nothrow) uint8_t[mDataMQ->getQuantumCount()]);
return mBuffer != nullptr;
}
virtual ~WriteThread() {}
private:
std::atomic<bool>* mStop;
audio_stream_out_t* mStream;
StreamOut::CommandMQ* mCommandMQ;
StreamOut::DataMQ* mDataMQ;
StreamOut::StatusMQ* mStatusMQ;
EventFlag* mEfGroup;
std::unique_ptr<uint8_t[]> mBuffer;
IStreamOut::WriteStatus mStatus;
bool threadLoop() override;
void doGetLatency();
void doGetPresentationPosition();
void doWrite();
};
void WriteThread::doWrite() {
const size_t availToRead = mDataMQ->availableToRead();
mStatus.retval = Result::OK;
mStatus.reply.written = 0;
if (mDataMQ->read(&mBuffer[0], availToRead)) {
ssize_t writeResult = mStream->write(mStream, &mBuffer[0], availToRead);
if (writeResult >= 0) {
mStatus.reply.written = writeResult;
} else {
mStatus.retval = Stream::analyzeStatus("write", writeResult);
}
}
}
void WriteThread::doGetPresentationPosition() {
mStatus.retval =
StreamOut::getPresentationPositionImpl(mStream, &mStatus.reply.presentationPosition.frames,
&mStatus.reply.presentationPosition.timeStamp);
}
void WriteThread::doGetLatency() {
mStatus.retval = Result::OK;
mStatus.reply.latencyMs = mStream->get_latency(mStream);
}
bool WriteThread::threadLoop() {
// This implementation doesn't return control back to the Thread until it
// decides to stop,
// as the Thread uses mutexes, and this can lead to priority inversion.
while (!std::atomic_load_explicit(mStop, std::memory_order_acquire)) {
uint32_t efState = 0;
mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY), &efState);
if (!(efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY))) {
continue; // Nothing to do.
}
if (!mCommandMQ->read(&mStatus.replyTo)) {
continue; // Nothing to do.
}
switch (mStatus.replyTo) {
case IStreamOut::WriteCommand::WRITE:
doWrite();
break;
case IStreamOut::WriteCommand::GET_PRESENTATION_POSITION:
doGetPresentationPosition();
break;
case IStreamOut::WriteCommand::GET_LATENCY:
doGetLatency();
break;
default:
ALOGE("Unknown write thread command code %d", mStatus.replyTo);
mStatus.retval = Result::NOT_SUPPORTED;
break;
}
if (!mStatusMQ->write(&mStatus)) {
ALOGE("status message queue write failed");
}
mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
}
return false;
}
} // namespace
StreamOut::StreamOut(const sp<Device>& device, audio_stream_out_t* stream)
: mDevice(device),
mStream(stream),
mStreamCommon(new Stream(false /*isInput*/, &stream->common)),
mStreamMmap(new StreamMmap<audio_stream_out_t>(stream)),
mEfGroup(nullptr),
mStopWriteThread(false) {}
StreamOut::~StreamOut() {
ATRACE_CALL();
(void)close();
if (mWriteThread.get()) {
ATRACE_NAME("mWriteThread->join");
status_t status = mWriteThread->join();
ALOGE_IF(status, "write thread exit error: %s", strerror(-status));
}
if (mEfGroup) {
status_t status = EventFlag::deleteEventFlag(&mEfGroup);
ALOGE_IF(status, "write MQ event flag deletion error: %s", strerror(-status));
}
mCallback = nullptr;
#if MAJOR_VERSION <= 5
mDevice->closeOutputStream(mStream);
// Closing the output stream in the HAL waits for the callback to finish,
// and joins the callback thread. Thus is it guaranteed that the callback
// thread will not be accessing our object anymore.
#endif
mStream = nullptr;
}
// Methods from ::android::hardware::audio::CPP_VERSION::IStream follow.
Return<uint64_t> StreamOut::getFrameSize() {
return audio_stream_out_frame_size(mStream);
}
Return<uint64_t> StreamOut::getFrameCount() {
return mStreamCommon->getFrameCount();
}
Return<uint64_t> StreamOut::getBufferSize() {
return mStreamCommon->getBufferSize();
}
#if MAJOR_VERSION <= 6
Return<uint32_t> StreamOut::getSampleRate() {
return mStreamCommon->getSampleRate();
}
#if MAJOR_VERSION == 2
Return<void> StreamOut::getSupportedChannelMasks(getSupportedChannelMasks_cb _hidl_cb) {
return mStreamCommon->getSupportedChannelMasks(_hidl_cb);
}
Return<void> StreamOut::getSupportedSampleRates(getSupportedSampleRates_cb _hidl_cb) {
return mStreamCommon->getSupportedSampleRates(_hidl_cb);
}
#endif
Return<void> StreamOut::getSupportedChannelMasks(AudioFormat format,
getSupportedChannelMasks_cb _hidl_cb) {
return mStreamCommon->getSupportedChannelMasks(format, _hidl_cb);
}
Return<void> StreamOut::getSupportedSampleRates(AudioFormat format,
getSupportedSampleRates_cb _hidl_cb) {
return mStreamCommon->getSupportedSampleRates(format, _hidl_cb);
}
Return<Result> StreamOut::setSampleRate(uint32_t sampleRateHz) {
return mStreamCommon->setSampleRate(sampleRateHz);
}
Return<AudioChannelBitfield> StreamOut::getChannelMask() {
return mStreamCommon->getChannelMask();
}
Return<Result> StreamOut::setChannelMask(AudioChannelBitfield mask) {
return mStreamCommon->setChannelMask(mask);
}
Return<AudioFormat> StreamOut::getFormat() {
return mStreamCommon->getFormat();
}
Return<void> StreamOut::getSupportedFormats(getSupportedFormats_cb _hidl_cb) {
return mStreamCommon->getSupportedFormats(_hidl_cb);
}
Return<Result> StreamOut::setFormat(AudioFormat format) {
return mStreamCommon->setFormat(format);
}
#else
Return<void> StreamOut::getSupportedProfiles(getSupportedProfiles_cb _hidl_cb) {
return mStreamCommon->getSupportedProfiles(_hidl_cb);
}
Return<Result> StreamOut::setAudioProperties(const AudioConfigBaseOptional& config) {
return mStreamCommon->setAudioProperties(config);
}
#endif // MAJOR_VERSION <= 6
Return<void> StreamOut::getAudioProperties(getAudioProperties_cb _hidl_cb) {
return mStreamCommon->getAudioProperties(_hidl_cb);
}
Return<Result> StreamOut::addEffect(uint64_t effectId) {
return mStreamCommon->addEffect(effectId);
}
Return<Result> StreamOut::removeEffect(uint64_t effectId) {
return mStreamCommon->removeEffect(effectId);
}
Return<Result> StreamOut::standby() {
return mStreamCommon->standby();
}
Return<Result> StreamOut::setHwAvSync(uint32_t hwAvSync) {
return mStreamCommon->setHwAvSync(hwAvSync);
}
#if MAJOR_VERSION == 2
Return<Result> StreamOut::setConnectedState(const DeviceAddress& address, bool connected) {
return mStreamCommon->setConnectedState(address, connected);
}
Return<AudioDevice> StreamOut::getDevice() {
return mStreamCommon->getDevice();
}
Return<Result> StreamOut::setDevice(const DeviceAddress& address) {
return mStreamCommon->setDevice(address);
}
Return<void> StreamOut::getParameters(const hidl_vec<hidl_string>& keys,
getParameters_cb _hidl_cb) {
return mStreamCommon->getParameters(keys, _hidl_cb);
}
Return<Result> StreamOut::setParameters(const hidl_vec<ParameterValue>& parameters) {
return mStreamCommon->setParameters(parameters);
}
Return<void> StreamOut::debugDump(const hidl_handle& fd) {
return mStreamCommon->debugDump(fd);
}
#elif MAJOR_VERSION >= 4
Return<void> StreamOut::getDevices(getDevices_cb _hidl_cb) {
return mStreamCommon->getDevices(_hidl_cb);
}
Return<Result> StreamOut::setDevices(const hidl_vec<DeviceAddress>& devices) {
return mStreamCommon->setDevices(devices);
}
Return<void> StreamOut::getParameters(const hidl_vec<ParameterValue>& context,
const hidl_vec<hidl_string>& keys,
getParameters_cb _hidl_cb) {
return mStreamCommon->getParameters(context, keys, _hidl_cb);
}
Return<Result> StreamOut::setParameters(const hidl_vec<ParameterValue>& context,
const hidl_vec<ParameterValue>& parameters) {
return mStreamCommon->setParameters(context, parameters);
}
#endif
Return<Result> StreamOut::close() {
if (mStopWriteThread.load(std::memory_order_relaxed)) { // only this thread writes
return Result::INVALID_STATE;
}
mStopWriteThread.store(true, std::memory_order_release);
if (mEfGroup) {
mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
}
#if MAJOR_VERSION >= 6
mDevice->closeOutputStream(mStream);
#endif
return Result::OK;
}
// Methods from ::android::hardware::audio::CPP_VERSION::IStreamOut follow.
Return<uint32_t> StreamOut::getLatency() {
return mStream->get_latency(mStream);
}
Return<Result> StreamOut::setVolume(float left, float right) {
if (mStream->set_volume == NULL) {
return Result::NOT_SUPPORTED;
}
if (!util::isGainNormalized(left)) {
ALOGW("Can not set a stream output volume {%f, %f} outside [0,1]", left, right);
return Result::INVALID_ARGUMENTS;
}
return Stream::analyzeStatus("set_volume", mStream->set_volume(mStream, left, right),
{ENOSYS} /*ignore*/);
}
Return<void> StreamOut::prepareForWriting(uint32_t frameSize, uint32_t framesCount,
prepareForWriting_cb _hidl_cb) {
status_t status;
#if MAJOR_VERSION <= 6
ThreadInfo threadInfo = {0, 0};
#else
int32_t threadInfo = 0;
#endif
// Wrap the _hidl_cb to return an error
auto sendError = [&threadInfo, &_hidl_cb](Result result) {
_hidl_cb(result, CommandMQ::Descriptor(), DataMQ::Descriptor(), StatusMQ::Descriptor(),
threadInfo);
};
// Create message queues.
if (mDataMQ) {
ALOGE("the client attempts to call prepareForWriting twice");
sendError(Result::INVALID_STATE);
return Void();
}
std::unique_ptr<CommandMQ> tempCommandMQ(new CommandMQ(1));
// Check frameSize and framesCount
if (frameSize == 0 || framesCount == 0) {
ALOGE("Null frameSize (%u) or framesCount (%u)", frameSize, framesCount);
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
if (frameSize > Stream::MAX_BUFFER_SIZE / framesCount) {
ALOGE("Buffer too big: %u*%u bytes > MAX_BUFFER_SIZE (%u)", frameSize, framesCount,
Stream::MAX_BUFFER_SIZE);
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
std::unique_ptr<DataMQ> tempDataMQ(new DataMQ(frameSize * framesCount, true /* EventFlag */));
std::unique_ptr<StatusMQ> tempStatusMQ(new StatusMQ(1));
if (!tempCommandMQ->isValid() || !tempDataMQ->isValid() || !tempStatusMQ->isValid()) {
ALOGE_IF(!tempCommandMQ->isValid(), "command MQ is invalid");
ALOGE_IF(!tempDataMQ->isValid(), "data MQ is invalid");
ALOGE_IF(!tempStatusMQ->isValid(), "status MQ is invalid");
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
EventFlag* tempRawEfGroup{};
status = EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &tempRawEfGroup);
std::unique_ptr<EventFlag, void (*)(EventFlag*)> tempElfGroup(
tempRawEfGroup, [](auto* ef) { EventFlag::deleteEventFlag(&ef); });
if (status != OK || !tempElfGroup) {
ALOGE("failed creating event flag for data MQ: %s", strerror(-status));
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
// Create and launch the thread.
auto tempWriteThread =
sp<WriteThread>::make(&mStopWriteThread, mStream, tempCommandMQ.get(), tempDataMQ.get(),
tempStatusMQ.get(), tempElfGroup.get());
if (!tempWriteThread->init()) {
ALOGW("failed to start writer thread: %s", strerror(-status));
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
status = tempWriteThread->run("writer", PRIORITY_URGENT_AUDIO);
if (status != OK) {
ALOGW("failed to start writer thread: %s", strerror(-status));
sendError(Result::INVALID_ARGUMENTS);
return Void();
}
mCommandMQ = std::move(tempCommandMQ);
mDataMQ = std::move(tempDataMQ);
mStatusMQ = std::move(tempStatusMQ);
mWriteThread = tempWriteThread;
mEfGroup = tempElfGroup.release();
#if MAJOR_VERSION <= 6
threadInfo.pid = getpid();
threadInfo.tid = mWriteThread->getTid();
#else
threadInfo = mWriteThread->getTid();
#endif
_hidl_cb(Result::OK, *mCommandMQ->getDesc(), *mDataMQ->getDesc(), *mStatusMQ->getDesc(),
threadInfo);
return Void();
}
Return<void> StreamOut::getRenderPosition(getRenderPosition_cb _hidl_cb) {
uint32_t halDspFrames;
Result retval = Stream::analyzeStatus("get_render_position",
mStream->get_render_position(mStream, &halDspFrames),
{ENOSYS} /*ignore*/);
_hidl_cb(retval, halDspFrames);
return Void();
}
Return<void> StreamOut::getNextWriteTimestamp(getNextWriteTimestamp_cb _hidl_cb) {
Result retval(Result::NOT_SUPPORTED);
int64_t timestampUs = 0;
if (mStream->get_next_write_timestamp != NULL) {
retval = Stream::analyzeStatus("get_next_write_timestamp",
mStream->get_next_write_timestamp(mStream, &timestampUs),
{ENOSYS} /*ignore*/);
}
_hidl_cb(retval, timestampUs);
return Void();
}
Return<Result> StreamOut::setCallback(const sp<IStreamOutCallback>& callback) {
if (mStream->set_callback == NULL) return Result::NOT_SUPPORTED;
// Safe to pass 'this' because it is guaranteed that the callback thread
// is joined prior to exit from StreamOut's destructor.
int result = mStream->set_callback(mStream, StreamOut::asyncCallback, this);
if (result == 0) {
mCallback = callback;
}
return Stream::analyzeStatus("set_callback", result, {ENOSYS} /*ignore*/);
}
Return<Result> StreamOut::clearCallback() {
if (mStream->set_callback == NULL) return Result::NOT_SUPPORTED;
mCallback = nullptr;
return Result::OK;
}
// static
int StreamOut::asyncCallback(stream_callback_event_t event, void*, void* cookie) {
// It is guaranteed that the callback thread is joined prior
// to exiting from StreamOut's destructor. Must *not* use sp<StreamOut>
// here because it can make this code the last owner of StreamOut,
// and an attempt to run the destructor on the callback thread
// will cause a deadlock in the legacy HAL code.
StreamOut* self = reinterpret_cast<StreamOut*>(cookie);
// It's correct to hold an sp<> to callback because the reference
// in the StreamOut instance can be cleared in the meantime. There is
// no difference on which thread to run IStreamOutCallback's destructor.
sp<IStreamOutCallback> callback = self->mCallback.load();
if (callback.get() == nullptr) return 0;
ALOGV("asyncCallback() event %d", event);
Return<void> result;
switch (event) {
case STREAM_CBK_EVENT_WRITE_READY:
result = callback->onWriteReady();
break;
case STREAM_CBK_EVENT_DRAIN_READY:
result = callback->onDrainReady();
break;
case STREAM_CBK_EVENT_ERROR:
result = callback->onError();
break;
default:
ALOGW("asyncCallback() unknown event %d", event);
break;
}
ALOGW_IF(!result.isOk(), "Client callback failed: %s", result.description().c_str());
return 0;
}
Return<void> StreamOut::supportsPauseAndResume(supportsPauseAndResume_cb _hidl_cb) {
_hidl_cb(mStream->pause != NULL, mStream->resume != NULL);
return Void();
}
Return<Result> StreamOut::pause() {
return mStream->pause != NULL
? Stream::analyzeStatus("pause", mStream->pause(mStream), {ENOSYS} /*ignore*/)
: Result::NOT_SUPPORTED;
}
Return<Result> StreamOut::resume() {
return mStream->resume != NULL
? Stream::analyzeStatus("resume", mStream->resume(mStream), {ENOSYS} /*ignore*/)
: Result::NOT_SUPPORTED;
}
Return<bool> StreamOut::supportsDrain() {
return mStream->drain != NULL;
}
Return<Result> StreamOut::drain(AudioDrain type) {
audio_drain_type_t halDrainType =
type == AudioDrain::EARLY_NOTIFY ? AUDIO_DRAIN_EARLY_NOTIFY : AUDIO_DRAIN_ALL;
return mStream->drain != NULL
? Stream::analyzeStatus("drain", mStream->drain(mStream, halDrainType),
{ENOSYS} /*ignore*/)
: Result::NOT_SUPPORTED;
}
Return<Result> StreamOut::flush() {
return mStream->flush != NULL
? Stream::analyzeStatus("flush", mStream->flush(mStream), {ENOSYS} /*ignore*/)
: Result::NOT_SUPPORTED;
}
// static
Result StreamOut::getPresentationPositionImpl(audio_stream_out_t* stream, uint64_t* frames,
TimeSpec* timeStamp) {
// Don't logspam on EINVAL--it's normal for get_presentation_position
// to return it sometimes. EAGAIN may be returned by A2DP audio HAL
// implementation. ENODATA can also be reported while the writer is
// continuously querying it, but the stream has been stopped.
static const std::vector<int> ignoredErrors{EINVAL, EAGAIN, ENODATA, ENOSYS};
Result retval(Result::NOT_SUPPORTED);
if (stream->get_presentation_position == NULL) return retval;
struct timespec halTimeStamp;
retval = Stream::analyzeStatus("get_presentation_position",
stream->get_presentation_position(stream, frames, &halTimeStamp),
ignoredErrors);
if (retval == Result::OK) {
timeStamp->tvSec = halTimeStamp.tv_sec;
timeStamp->tvNSec = halTimeStamp.tv_nsec;
}
return retval;
}
Return<void> StreamOut::getPresentationPosition(getPresentationPosition_cb _hidl_cb) {
uint64_t frames = 0;
TimeSpec timeStamp = {0, 0};
Result retval = getPresentationPositionImpl(mStream, &frames, &timeStamp);
_hidl_cb(retval, frames, timeStamp);
return Void();
}
Return<Result> StreamOut::start() {
return mStreamMmap->start();
}
Return<Result> StreamOut::stop() {
return mStreamMmap->stop();
}
Return<void> StreamOut::createMmapBuffer(int32_t minSizeFrames, createMmapBuffer_cb _hidl_cb) {
return mStreamMmap->createMmapBuffer(minSizeFrames, audio_stream_out_frame_size(mStream),
_hidl_cb);
}
Return<void> StreamOut::getMmapPosition(getMmapPosition_cb _hidl_cb) {
return mStreamMmap->getMmapPosition(_hidl_cb);
}
Return<void> StreamOut::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) {
return mStreamCommon->debug(fd, options);
}
#if MAJOR_VERSION >= 4
Result StreamOut::doUpdateSourceMetadata(const SourceMetadata& sourceMetadata) {
std::vector<playback_track_metadata_t> halTracks;
#if MAJOR_VERSION <= 6
(void)CoreUtils::sourceMetadataToHal(sourceMetadata, &halTracks);
#else
// Validate whether a conversion to V7 is possible. This is needed
// to have a consistent behavior of the HAL regardless of the API
// version of the legacy HAL (and also to be consistent with openOutputStream).
std::vector<playback_track_metadata_v7> halTracksV7;
if (status_t status = CoreUtils::sourceMetadataToHalV7(
sourceMetadata, false /*ignoreNonVendorTags*/, &halTracksV7);
status == NO_ERROR) {
halTracks.reserve(halTracksV7.size());
for (auto metadata_v7 : halTracksV7) {
halTracks.push_back(std::move(metadata_v7.base));
}
} else {
return Stream::analyzeStatus("sourceMetadataToHal", status);
}
#endif // MAJOR_VERSION <= 6
const source_metadata_t halMetadata = {
.track_count = halTracks.size(),
.tracks = halTracks.data(),
};
mStream->update_source_metadata(mStream, &halMetadata);
return Result::OK;
}
#if MAJOR_VERSION >= 7
Result StreamOut::doUpdateSourceMetadataV7(const SourceMetadata& sourceMetadata) {
std::vector<playback_track_metadata_v7> halTracks;
if (status_t status = CoreUtils::sourceMetadataToHalV7(
sourceMetadata, false /*ignoreNonVendorTags*/, &halTracks);
status != NO_ERROR) {
return Stream::analyzeStatus("sourceMetadataToHal", status);
}
const source_metadata_v7_t halMetadata = {
.track_count = halTracks.size(),
.tracks = halTracks.data(),
};
mStream->update_source_metadata_v7(mStream, &halMetadata);
return Result::OK;
}
#endif // MAJOR_VERSION >= 7
#if MAJOR_VERSION <= 6
Return<void> StreamOut::updateSourceMetadata(const SourceMetadata& sourceMetadata) {
if (mStream->update_source_metadata == nullptr) {
return Void(); // not supported by the HAL
}
(void)doUpdateSourceMetadata(sourceMetadata);
return Void();
}
#elif MAJOR_VERSION >= 7
Return<Result> StreamOut::updateSourceMetadata(const SourceMetadata& sourceMetadata) {
if (mDevice->version() < AUDIO_DEVICE_API_VERSION_3_2) {
if (mStream->update_source_metadata == nullptr) {
return Result::NOT_SUPPORTED;
}
return doUpdateSourceMetadata(sourceMetadata);
} else {
if (mStream->update_source_metadata_v7 == nullptr) {
return Result::NOT_SUPPORTED;
}
return doUpdateSourceMetadataV7(sourceMetadata);
}
}
#endif
Return<Result> StreamOut::selectPresentation(int32_t /*presentationId*/, int32_t /*programId*/) {
return Result::NOT_SUPPORTED; // TODO: propagate to legacy
}
#endif
#if MAJOR_VERSION >= 6
Return<void> StreamOut::getDualMonoMode(getDualMonoMode_cb _hidl_cb) {
audio_dual_mono_mode_t mode = AUDIO_DUAL_MONO_MODE_OFF;
Result retval = mStream->get_dual_mono_mode != nullptr
? Stream::analyzeStatus("get_dual_mono_mode",
mStream->get_dual_mono_mode(mStream, &mode))
: Result::NOT_SUPPORTED;
_hidl_cb(retval, DualMonoMode(mode));
return Void();
}
Return<Result> StreamOut::setDualMonoMode(DualMonoMode mode) {
return mStream->set_dual_mono_mode != nullptr
? Stream::analyzeStatus(
"set_dual_mono_mode",
mStream->set_dual_mono_mode(mStream,
static_cast<audio_dual_mono_mode_t>(mode)))
: Result::NOT_SUPPORTED;
}
Return<void> StreamOut::getAudioDescriptionMixLevel(getAudioDescriptionMixLevel_cb _hidl_cb) {
float leveldB = -std::numeric_limits<float>::infinity();
Result retval = mStream->get_audio_description_mix_level != nullptr
? Stream::analyzeStatus(
"get_audio_description_mix_level",
mStream->get_audio_description_mix_level(mStream, &leveldB))
: Result::NOT_SUPPORTED;
_hidl_cb(retval, leveldB);
return Void();
}
Return<Result> StreamOut::setAudioDescriptionMixLevel(float leveldB) {
return mStream->set_audio_description_mix_level != nullptr
? Stream::analyzeStatus(
"set_audio_description_mix_level",
mStream->set_audio_description_mix_level(mStream, leveldB))
: Result::NOT_SUPPORTED;
}
Return<void> StreamOut::getPlaybackRateParameters(getPlaybackRateParameters_cb _hidl_cb) {
audio_playback_rate_t rate = AUDIO_PLAYBACK_RATE_INITIALIZER;
Result retval =
mStream->get_playback_rate_parameters != nullptr
? Stream::analyzeStatus("get_playback_rate_parameters",
mStream->get_playback_rate_parameters(mStream, &rate))
: Result::NOT_SUPPORTED;
_hidl_cb(retval,
PlaybackRate{rate.mSpeed, rate.mPitch, static_cast<TimestretchMode>(rate.mStretchMode),
static_cast<TimestretchFallbackMode>(rate.mFallbackMode)});
return Void();
}
Return<Result> StreamOut::setPlaybackRateParameters(const PlaybackRate& playbackRate) {
audio_playback_rate_t rate = {
playbackRate.speed, playbackRate.pitch,
static_cast<audio_timestretch_stretch_mode_t>(playbackRate.timestretchMode),
static_cast<audio_timestretch_fallback_mode_t>(playbackRate.fallbackMode)};
return mStream->set_playback_rate_parameters != nullptr
? Stream::analyzeStatus("set_playback_rate_parameters",
mStream->set_playback_rate_parameters(mStream, &rate))
: Result::NOT_SUPPORTED;
}
Return<Result> StreamOut::setEventCallback(const sp<IStreamOutEventCallback>& callback) {
if (mStream->set_event_callback == nullptr) return Result::NOT_SUPPORTED;
int result = mStream->set_event_callback(mStream, StreamOut::asyncEventCallback, this);
if (result == 0) {
mEventCallback = callback;
}
return Stream::analyzeStatus("set_stream_out_callback", result, {ENOSYS} /*ignore*/);
}
// static
int StreamOut::asyncEventCallback(stream_event_callback_type_t event, void* param, void* cookie) {
StreamOut* self = reinterpret_cast<StreamOut*>(cookie);
sp<IStreamOutEventCallback> eventCallback = self->mEventCallback.load();
if (eventCallback.get() == nullptr) return 0;
ALOGV("%s event %d", __func__, event);
Return<void> result;
switch (event) {
case STREAM_EVENT_CBK_TYPE_CODEC_FORMAT_CHANGED: {
hidl_vec<uint8_t> audioMetadata;
// void* param is the byte string buffer from byte_string_from_audio_metadata().
// As the byte string buffer may have embedded zeroes, we cannot use strlen()
// but instead use audio_utils::metadata::dataByteStringLen().
audioMetadata.setToExternal((uint8_t*)param, audio_utils::metadata::dataByteStringLen(
(const uint8_t*)param));
result = eventCallback->onCodecFormatChanged(audioMetadata);
} break;
default:
ALOGW("%s unknown event %d", __func__, event);
break;
}
ALOGW_IF(!result.isOk(), "Client callback failed: %s", result.description().c_str());
return 0;
}
#if MAJOR_VERSION == 7 && MINOR_VERSION == 1
Return<Result> StreamOut::setLatencyMode(LatencyMode mode) {
return mStream->set_latency_mode != nullptr
? Stream::analyzeStatus(
"set_latency_mode",
mStream->set_latency_mode(mStream,
static_cast<audio_latency_mode_t>(mode)))
: Result::NOT_SUPPORTED;
};
Return<void> StreamOut::getRecommendedLatencyModes(getRecommendedLatencyModes_cb _hidl_cb) {
Result retval = Result::NOT_SUPPORTED;
hidl_vec<LatencyMode> hidlModes;
size_t num_modes = AUDIO_LATENCY_MODE_CNT;
audio_latency_mode_t modes[AUDIO_LATENCY_MODE_CNT];
if (mStream->get_recommended_latency_modes != nullptr &&
mStream->get_recommended_latency_modes(mStream, &modes[0], &num_modes) == 0) {
if (num_modes == 0 || num_modes > AUDIO_LATENCY_MODE_CNT) {
ALOGW("%s invalid number of modes returned: %zu", __func__, num_modes);
retval = Result::INVALID_STATE;
} else {
hidlModes.resize(num_modes);
for (size_t i = 0; i < num_modes; ++i) {
hidlModes[i] = static_cast<LatencyMode>(modes[i]);
}
retval = Result::OK;
}
}
_hidl_cb(retval, hidlModes);
return Void();
};
// static
void StreamOut::latencyModeCallback(audio_latency_mode_t* modes, size_t num_modes, void* cookie) {
StreamOut* self = reinterpret_cast<StreamOut*>(cookie);
sp<IStreamOutLatencyModeCallback> callback = self->mLatencyModeCallback.load();
if (callback.get() == nullptr) return;
ALOGV("%s", __func__);
if (num_modes == 0 || num_modes > AUDIO_LATENCY_MODE_CNT) {
ALOGW("%s invalid number of modes returned: %zu", __func__, num_modes);
return;
}
hidl_vec<LatencyMode> hidlModes(num_modes);
for (size_t i = 0; i < num_modes; ++i) {
hidlModes[i] = static_cast<LatencyMode>(modes[i]);
}
Return<void> result = callback->onRecommendedLatencyModeChanged(hidlModes);
ALOGW_IF(!result.isOk(), "Client callback failed: %s", result.description().c_str());
}
Return<Result> StreamOut::setLatencyModeCallback(
const sp<IStreamOutLatencyModeCallback>& callback) {
if (mStream->set_latency_mode_callback == nullptr) return Result::NOT_SUPPORTED;
int result = mStream->set_latency_mode_callback(mStream, StreamOut::latencyModeCallback, this);
if (result == 0) {
mLatencyModeCallback = callback;
}
return Stream::analyzeStatus("set_latency_mode_callback", result, {ENOSYS} /*ignore*/);
};
#endif
#endif
} // namespace implementation
} // namespace CPP_VERSION
} // namespace audio
} // namespace hardware
} // namespace android
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