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// Copyright 2016 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/browser/media/cast_renderer.h"
#include "base/bind.h"
#include "base/single_thread_task_runner.h"
#include "chromecast/base/task_runner_impl.h"
#include "chromecast/browser/media/cma_media_pipeline_client.h"
#include "chromecast/media/cma/base/balanced_media_task_runner_factory.h"
#include "chromecast/media/cma/base/cma_logging.h"
#include "chromecast/media/cma/base/demuxer_stream_adapter.h"
#include "chromecast/media/cma/pipeline/media_pipeline_impl.h"
#include "chromecast/media/cma/pipeline/video_pipeline_client.h"
#include "chromecast/public/media/media_pipeline_backend.h"
#include "chromecast/public/media/media_pipeline_device_params.h"
#include "media/base/audio_decoder_config.h"
#include "media/base/demuxer_stream.h"
#include "media/base/media_log.h"
namespace chromecast {
namespace media {
namespace {
// Maximum difference between audio frame PTS and video frame PTS
// for frames read from the DemuxerStream.
const base::TimeDelta kMaxDeltaFetcher(base::TimeDelta::FromMilliseconds(2000));
} // namespace
CastRenderer::CastRenderer(
const scoped_refptr<CmaMediaPipelineClient> pipeline_client,
const scoped_refptr<base::SingleThreadTaskRunner>& task_runner)
: pipeline_client_(pipeline_client),
task_runner_(task_runner),
media_task_runner_factory_(
new BalancedMediaTaskRunnerFactory(kMaxDeltaFetcher)) {
CMALOG(kLogControl) << __FUNCTION__ << ": " << this;
}
CastRenderer::~CastRenderer() {
CMALOG(kLogControl) << __FUNCTION__ << ": " << this;
DCHECK(task_runner_->BelongsToCurrentThread());
}
void CastRenderer::Initialize(
::media::DemuxerStreamProvider* demuxer_stream_provider,
const ::media::PipelineStatusCB& init_cb,
const ::media::StatisticsCB& statistics_cb,
const ::media::BufferingStateCB& buffering_state_cb,
const base::Closure& ended_cb,
const ::media::PipelineStatusCB& error_cb,
const base::Closure& waiting_for_decryption_key_cb) {
CMALOG(kLogControl) << __FUNCTION__ << ": " << this;
DCHECK(task_runner_->BelongsToCurrentThread());
// Create pipeline backend.
backend_task_runner_.reset(new TaskRunnerImpl());
// TODO(erickung): crbug.com/443956. Need to provide right LoadType.
LoadType load_type = kLoadTypeMediaSource;
MediaPipelineDeviceParams::MediaSyncType sync_type =
(load_type == kLoadTypeMediaStream)
? MediaPipelineDeviceParams::kModeIgnorePts
: MediaPipelineDeviceParams::kModeSyncPts;
MediaPipelineDeviceParams params(sync_type, backend_task_runner_.get());
scoped_ptr<MediaPipelineBackend> backend(
pipeline_client_->CreateMediaPipelineBackend(params));
// Create pipeline.
MediaPipelineClient pipeline_client;
pipeline_client.error_cb = error_cb;
pipeline_client.buffering_state_cb = buffering_state_cb;
pipeline_client.pipeline_backend_created_cb = base::Bind(
&CmaMediaPipelineClient::OnMediaPipelineBackendCreated, pipeline_client_);
pipeline_client.pipeline_backend_destroyed_cb =
base::Bind(&CmaMediaPipelineClient::OnMediaPipelineBackendDestroyed,
pipeline_client_);
pipeline_.reset(new MediaPipelineImpl);
pipeline_->SetClient(pipeline_client);
pipeline_->Initialize(load_type, std::move(backend));
// Initialize audio.
::media::DemuxerStream* audio_stream =
demuxer_stream_provider->GetStream(::media::DemuxerStream::AUDIO);
if (audio_stream) {
AvPipelineClient audio_client;
audio_client.wait_for_key_cb = waiting_for_decryption_key_cb;
audio_client.eos_cb =
base::Bind(&CastRenderer::OnEos, base::Unretained(this), STREAM_AUDIO);
audio_client.playback_error_cb = error_cb;
audio_client.statistics_cb = statistics_cb;
scoped_ptr<CodedFrameProvider> frame_provider(new DemuxerStreamAdapter(
task_runner_, media_task_runner_factory_, audio_stream));
::media::PipelineStatus status =
pipeline_->InitializeAudio(audio_stream->audio_decoder_config(),
audio_client, std::move(frame_provider));
if (status != ::media::PIPELINE_OK) {
init_cb.Run(status);
return;
}
}
// Initialize video.
::media::DemuxerStream* video_stream =
demuxer_stream_provider->GetStream(::media::DemuxerStream::VIDEO);
if (video_stream) {
VideoPipelineClient video_client;
// TODO(alokp): Set VideoPipelineClient::natural_size_changed_cb.
video_client.av_pipeline_client.wait_for_key_cb =
waiting_for_decryption_key_cb;
video_client.av_pipeline_client.eos_cb =
base::Bind(&CastRenderer::OnEos, base::Unretained(this), STREAM_VIDEO);
video_client.av_pipeline_client.playback_error_cb = error_cb;
video_client.av_pipeline_client.statistics_cb = statistics_cb;
// TODO(alokp): Change MediaPipelineImpl API to accept a single config
// after CmaRenderer is deprecated.
std::vector<::media::VideoDecoderConfig> video_configs;
video_configs.push_back(video_stream->video_decoder_config());
scoped_ptr<CodedFrameProvider> frame_provider(new DemuxerStreamAdapter(
task_runner_, media_task_runner_factory_, video_stream));
::media::PipelineStatus status = pipeline_->InitializeVideo(
video_configs, video_client, std::move(frame_provider));
if (status != ::media::PIPELINE_OK) {
init_cb.Run(status);
return;
}
}
ended_cb_ = ended_cb;
init_cb.Run(::media::PIPELINE_OK);
}
void CastRenderer::SetCdm(::media::CdmContext* cdm_context,
const ::media::CdmAttachedCB& cdm_attached_cb) {
DCHECK(task_runner_->BelongsToCurrentThread());
NOTIMPLEMENTED();
}
void CastRenderer::Flush(const base::Closure& flush_cb) {
DCHECK(task_runner_->BelongsToCurrentThread());
pipeline_->Flush(flush_cb);
}
void CastRenderer::StartPlayingFrom(base::TimeDelta time) {
DCHECK(task_runner_->BelongsToCurrentThread());
eos_[STREAM_AUDIO] = !pipeline_->HasAudio();
eos_[STREAM_VIDEO] = !pipeline_->HasVideo();
pipeline_->StartPlayingFrom(time);
}
void CastRenderer::SetPlaybackRate(double playback_rate) {
DCHECK(task_runner_->BelongsToCurrentThread());
pipeline_->SetPlaybackRate(playback_rate);
}
void CastRenderer::SetVolume(float volume) {
DCHECK(task_runner_->BelongsToCurrentThread());
pipeline_->SetVolume(volume);
}
base::TimeDelta CastRenderer::GetMediaTime() {
DCHECK(task_runner_->BelongsToCurrentThread());
return pipeline_->GetMediaTime();
}
bool CastRenderer::HasAudio() {
DCHECK(task_runner_->BelongsToCurrentThread());
return pipeline_->HasAudio();
}
bool CastRenderer::HasVideo() {
DCHECK(task_runner_->BelongsToCurrentThread());
return pipeline_->HasVideo();
}
void CastRenderer::OnEos(Stream stream) {
DCHECK(!eos_[stream]);
eos_[stream] = true;
CMALOG(kLogControl) << __FUNCTION__ << ": eos_audio=" << eos_[STREAM_AUDIO]
<< " eos_video=" << eos_[STREAM_VIDEO];
if (eos_[STREAM_AUDIO] && eos_[STREAM_VIDEO])
ended_cb_.Run();
}
} // namespace media
} // namespace chromecast
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