CmaRenderer is dead. Long live MojoRenderer.

chromecast/browser/media/media_pipeline_host.cc

-// 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/browser/media/media_pipeline_host.h"
-
-#include <stddef.h>
-
-#include <utility>
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/location.h"
-#include "base/memory/shared_memory.h"
-#include "base/single_thread_task_runner.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "chromecast/base/task_runner_impl.h"
-#include "chromecast/common/media/shared_memory_chunk.h"
-#include "chromecast/media/base/media_caps.h"
-#include "chromecast/media/cdm/cast_cdm_context.h"
-#include "chromecast/media/cma/ipc/media_message_fifo.h"
-#include "chromecast/media/cma/ipc_streamer/coded_frame_provider_host.h"
-#include "chromecast/media/cma/pipeline/audio_pipeline_impl.h"
-#include "chromecast/media/cma/pipeline/media_pipeline_impl.h"
-#include "chromecast/media/cma/pipeline/video_pipeline_impl.h"
-#include "chromecast/public/media/media_pipeline_backend.h"
-#include "chromecast/public/media/media_pipeline_device_params.h"
-#include "media/audio/audio_device_description.h"
-
-namespace chromecast {
-namespace media {
-
-struct MediaPipelineHost::MediaTrackHost {
-  MediaTrackHost();
-  ~MediaTrackHost();
-
-  base::Closure pipe_write_cb;
-};
-
-MediaPipelineHost::MediaTrackHost::MediaTrackHost() {
-}
-
-MediaPipelineHost::MediaTrackHost::~MediaTrackHost() {
-}
-
-MediaPipelineHost::MediaPipelineHost() {
-  thread_checker_.DetachFromThread();
-}
-
-MediaPipelineHost::~MediaPipelineHost() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-
-  for (MediaTrackMap::iterator it = media_track_map_.begin();
-       it != media_track_map_.end(); ++it) {
-    std::unique_ptr<MediaTrackHost> media_track(it->second);
-  }
-  media_track_map_.clear();
-}
-
-void MediaPipelineHost::Initialize(
-    LoadType load_type,
-    const MediaPipelineClient& client,
-    const CreateMediaPipelineBackendCB& create_backend_cb) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  media_pipeline_.reset(new MediaPipelineImpl());
-  task_runner_.reset(new TaskRunnerImpl());
-  MediaPipelineDeviceParams::MediaSyncType sync_type =
-      (load_type == kLoadTypeMediaStream)
-          ? MediaPipelineDeviceParams::kModeIgnorePts
-          : MediaPipelineDeviceParams::kModeSyncPts;
-  MediaPipelineDeviceParams default_parameters(sync_type, task_runner_.get());
-
-  media_pipeline_->SetClient(client);
-  media_pipeline_->Initialize(
-      load_type,
-      create_backend_cb.Run(default_parameters,
-                            ::media::AudioDeviceDescription::kDefaultDeviceId));
-}
-
-void MediaPipelineHost::SetAvPipe(
-    TrackId track_id,
-    std::unique_ptr<base::SharedMemory> shared_mem,
-    const base::Closure& pipe_read_activity_cb,
-    const base::Closure& av_pipe_set_cb) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  CHECK(track_id == kAudioTrackId || track_id == kVideoTrackId);
-
-  size_t shared_mem_size = shared_mem->requested_size();
-  std::unique_ptr<MediaMemoryChunk> shared_memory_chunk(
-      new SharedMemoryChunk(std::move(shared_mem), shared_mem_size));
-  std::unique_ptr<MediaMessageFifo> media_message_fifo(
-      new MediaMessageFifo(std::move(shared_memory_chunk), shared_mem_size));
-  media_message_fifo->ObserveReadActivity(pipe_read_activity_cb);
-  std::unique_ptr<CodedFrameProviderHost> frame_provider_host(
-      new CodedFrameProviderHost(std::move(media_message_fifo)));
-
-  MediaTrackMap::iterator it = media_track_map_.find(track_id);
-  MediaTrackHost* media_track_host;
-  if (it == media_track_map_.end()) {
-    media_track_host = new MediaTrackHost();
-    media_track_map_.insert(
-        std::pair<TrackId, MediaTrackHost*>(track_id, media_track_host));
-  } else {
-    media_track_host = it->second;
-  }
-  media_track_host->pipe_write_cb = frame_provider_host->GetFifoWriteEventCb();
-
-  if (track_id == kAudioTrackId) {
-    audio_frame_provider_ = std::move(frame_provider_host);
-  } else {
-    video_frame_provider_ = std::move(frame_provider_host);
-  }
-  av_pipe_set_cb.Run();
-}
-
-void MediaPipelineHost::AudioInitialize(
-    TrackId track_id,
-    const AvPipelineClient& client,
-    const ::media::AudioDecoderConfig& config,
-    const ::media::PipelineStatusCB& status_cb) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  CHECK(track_id == kAudioTrackId);
-  ::media::PipelineStatus status = media_pipeline_->InitializeAudio(
-      config, client, std::move(audio_frame_provider_));
-  status_cb.Run(status);
-}
-
-void MediaPipelineHost::VideoInitialize(
-    TrackId track_id,
-    const VideoPipelineClient& client,
-    const std::vector< ::media::VideoDecoderConfig>& configs,
-    const ::media::PipelineStatusCB& status_cb) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  CHECK(track_id == kVideoTrackId);
-  ::media::PipelineStatus status = media_pipeline_->InitializeVideo(
-      configs, client, std::move(video_frame_provider_));
-  status_cb.Run(status);
-}
-
-void MediaPipelineHost::StartPlayingFrom(base::TimeDelta time) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  media_pipeline_->StartPlayingFrom(time);
-}
-
-void MediaPipelineHost::Flush(const base::Closure& flush_cb) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  media_pipeline_->Flush(flush_cb);
-}
-
-void MediaPipelineHost::Stop() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  media_pipeline_->Stop();
-}
-
-void MediaPipelineHost::SetPlaybackRate(double playback_rate) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  media_pipeline_->SetPlaybackRate(playback_rate);
-}
-
-void MediaPipelineHost::SetVolume(TrackId track_id, float volume) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  CHECK(track_id == kAudioTrackId);
-  media_pipeline_->SetVolume(volume);
-}
-
-void MediaPipelineHost::SetCdm(CastCdmContext* cdm) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  media_pipeline_->SetCdm(cdm);
-}
-
-void MediaPipelineHost::NotifyPipeWrite(TrackId track_id) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  MediaTrackMap::iterator it = media_track_map_.find(track_id);
-  if (it == media_track_map_.end())
-    return;
-
-  MediaTrackHost* media_track_host = it->second;
-  if (!media_track_host->pipe_write_cb.is_null())
-    media_track_host->pipe_write_cb.Run();
-}
-
-}  // namespace media
-}  // namespace chromecast