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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromecast/media/cma/pipeline/audio_pipeline_impl.h"
#include "base/bind.h"
#include "chromecast/media/cma/base/buffering_defs.h"
#include "chromecast/media/cma/base/cma_logging.h"
#include "chromecast/media/cma/base/coded_frame_provider.h"
#include "chromecast/media/cma/base/decoder_config_adapter.h"
#include "chromecast/media/cma/pipeline/av_pipeline_impl.h"
#include "chromecast/public/media/decoder_config.h"
#include "media/base/audio_decoder_config.h"
namespace chromecast {
namespace media {
namespace {
const size_t kMaxAudioFrameSize = 32 * 1024;
}
AudioPipelineImpl::AudioPipelineImpl(
MediaPipelineBackend::AudioDecoder* decoder,
const AvPipelineClient& client)
: decoder_(decoder), audio_client_(client), weak_factory_(this) {
av_pipeline_impl_.reset(new AvPipelineImpl(
decoder_,
base::Bind(&AudioPipelineImpl::OnUpdateConfig, base::Unretained(this))));
weak_this_ = weak_factory_.GetWeakPtr();
}
AudioPipelineImpl::~AudioPipelineImpl() {
}
void AudioPipelineImpl::SetCodedFrameProvider(
scoped_ptr<CodedFrameProvider> frame_provider) {
av_pipeline_impl_->SetCodedFrameProvider(
frame_provider.Pass(), kAppAudioBufferSize, kMaxAudioFrameSize);
}
bool AudioPipelineImpl::StartPlayingFrom(
base::TimeDelta time,
const scoped_refptr<BufferingState>& buffering_state) {
CMALOG(kLogControl) << __FUNCTION__ << " t0=" << time.InMilliseconds();
// Reset the pipeline statistics.
previous_stats_ = ::media::PipelineStatistics();
// Start playing.
if (av_pipeline_impl_->GetState() == AvPipelineImpl::kError)
return false;
DCHECK_EQ(av_pipeline_impl_->GetState(), AvPipelineImpl::kFlushed);
if (!av_pipeline_impl_->StartPlayingFrom(time, buffering_state)) {
av_pipeline_impl_->TransitionToState(AvPipelineImpl::kError);
return false;
}
av_pipeline_impl_->TransitionToState(AvPipelineImpl::kPlaying);
return true;
}
void AudioPipelineImpl::Flush(const ::media::PipelineStatusCB& status_cb) {
CMALOG(kLogControl) << __FUNCTION__;
if (av_pipeline_impl_->GetState() == AvPipelineImpl::kError) {
status_cb.Run(::media::PIPELINE_ERROR_ABORT);
return;
}
DCHECK_EQ(av_pipeline_impl_->GetState(), AvPipelineImpl::kPlaying);
av_pipeline_impl_->TransitionToState(AvPipelineImpl::kFlushing);
av_pipeline_impl_->Flush(
base::Bind(&AudioPipelineImpl::OnFlushDone, weak_this_, status_cb));
}
void AudioPipelineImpl::BackendStopped() {
CMALOG(kLogControl) << __FUNCTION__;
av_pipeline_impl_->BackendStopped();
}
void AudioPipelineImpl::OnFlushDone(
const ::media::PipelineStatusCB& status_cb) {
CMALOG(kLogControl) << __FUNCTION__;
if (av_pipeline_impl_->GetState() == AvPipelineImpl::kError) {
status_cb.Run(::media::PIPELINE_ERROR_ABORT);
return;
}
av_pipeline_impl_->TransitionToState(AvPipelineImpl::kFlushed);
status_cb.Run(::media::PIPELINE_OK);
}
void AudioPipelineImpl::Stop() {
CMALOG(kLogControl) << __FUNCTION__;
av_pipeline_impl_->Stop();
av_pipeline_impl_->TransitionToState(AvPipelineImpl::kStopped);
}
void AudioPipelineImpl::SetCdm(BrowserCdmCast* media_keys) {
av_pipeline_impl_->SetCdm(media_keys);
}
void AudioPipelineImpl::Initialize(
const ::media::AudioDecoderConfig& audio_config,
scoped_ptr<CodedFrameProvider> frame_provider,
const ::media::PipelineStatusCB& status_cb) {
CMALOG(kLogControl) << __FUNCTION__ << " "
<< audio_config.AsHumanReadableString();
if (frame_provider)
SetCodedFrameProvider(frame_provider.Pass());
DCHECK(audio_config.IsValidConfig());
if (!decoder_->SetConfig(
DecoderConfigAdapter::ToCastAudioConfig(kPrimary, audio_config))) {
status_cb.Run(::media::PIPELINE_ERROR_INITIALIZATION_FAILED);
return;
}
av_pipeline_impl_->TransitionToState(AvPipelineImpl::kFlushed);
status_cb.Run(::media::PIPELINE_OK);
}
void AudioPipelineImpl::SetVolume(float volume) {
decoder_->SetVolume(volume);
}
void AudioPipelineImpl::OnBufferPushed(
MediaPipelineBackend::BufferStatus status) {
av_pipeline_impl_->OnBufferPushed(status);
}
void AudioPipelineImpl::OnEndOfStream() {
if (!audio_client_.eos_cb.is_null())
audio_client_.eos_cb.Run();
}
void AudioPipelineImpl::OnError() {
if (!audio_client_.playback_error_cb.is_null()) {
audio_client_.playback_error_cb.Run(
::media::PIPELINE_ERROR_COULD_NOT_RENDER);
}
}
void AudioPipelineImpl::OnUpdateConfig(
StreamId id,
const ::media::AudioDecoderConfig& audio_config,
const ::media::VideoDecoderConfig& video_config) {
if (audio_config.IsValidConfig()) {
CMALOG(kLogControl) << __FUNCTION__ << " id:" << id << " "
<< audio_config.AsHumanReadableString();
bool success = decoder_->SetConfig(
DecoderConfigAdapter::ToCastAudioConfig(id, audio_config));
if (!success && !audio_client_.playback_error_cb.is_null())
audio_client_.playback_error_cb.Run(::media::PIPELINE_ERROR_DECODE);
}
}
void AudioPipelineImpl::UpdateStatistics() {
if (audio_client_.statistics_cb.is_null())
return;
MediaPipelineBackend::Decoder::Statistics device_stats;
decoder_->GetStatistics(&device_stats);
::media::PipelineStatistics current_stats;
current_stats.audio_bytes_decoded = device_stats.decoded_bytes;
::media::PipelineStatistics delta_stats;
delta_stats.audio_bytes_decoded =
current_stats.audio_bytes_decoded - previous_stats_.audio_bytes_decoded;
previous_stats_ = current_stats;
audio_client_.statistics_cb.Run(delta_stats);
}
} // namespace media
} // namespace chromecast
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