Roll src/third_party/WebKit 3aea697:d9c6159 (svn 201973:201974)
[chromium-blink-merge.git] / chromecast / renderer / media / chromecast_media_renderer_factory.cc
blob3a43e917b14b47212684cd80ae93efb8793cdd87
1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "chromecast/renderer/media/chromecast_media_renderer_factory.h"
7 #include "base/command_line.h"
8 #include "chromecast/media/base/switching_media_renderer.h"
9 #include "chromecast/media/cma/filters/cma_renderer.h"
10 #include "chromecast/renderer/media/media_pipeline_proxy.h"
11 #include "content/public/renderer/render_thread.h"
12 #include "media/base/audio_hardware_config.h"
13 #include "media/base/media_log.h"
14 #include "media/renderers/default_renderer_factory.h"
15 #include "media/renderers/gpu_video_accelerator_factories.h"
17 namespace chromecast {
18 namespace media {
20 ChromecastMediaRendererFactory::ChromecastMediaRendererFactory(
21 const scoped_refptr<::media::GpuVideoAcceleratorFactories>& gpu_factories,
22 const scoped_refptr<::media::MediaLog>& media_log,
23 int render_frame_id)
24 : render_frame_id_(render_frame_id),
25 gpu_factories_(gpu_factories),
26 media_log_(media_log) {
29 ChromecastMediaRendererFactory::~ChromecastMediaRendererFactory() {
32 scoped_ptr<::media::Renderer> ChromecastMediaRendererFactory::CreateRenderer(
33 const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
34 const scoped_refptr<base::TaskRunner>& worker_task_runner,
35 ::media::AudioRendererSink* audio_renderer_sink,
36 ::media::VideoRendererSink* video_renderer_sink) {
37 if (!default_render_factory_) {
38 // Chromecast doesn't have input audio devices, so leave this uninitialized
39 ::media::AudioParameters input_audio_params;
40 // TODO(servolk): Audio parameters are hardcoded for now, but in the future
41 // either we need to obtain AudioHardwareConfig from RenderThreadImpl,
42 // or media renderer needs to figure out optimal audio parameters itself.
43 const int kDefaultSamplingRate = 48000;
44 const int kDefaultBitsPerSample = 16;
45 // About 20ms of stereo (2 channels) 16bit (2 byte) audio
46 int buffer_size = kDefaultSamplingRate * 20 * 2 * 2 / 1000;
47 ::media::AudioParameters output_audio_params(
48 ::media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
49 ::media::CHANNEL_LAYOUT_STEREO, kDefaultSamplingRate,
50 kDefaultBitsPerSample, buffer_size);
52 audio_config_.reset(new ::media::AudioHardwareConfig(input_audio_params,
53 output_audio_params));
55 default_render_factory_.reset(new ::media::DefaultRendererFactory(
56 media_log_, /*gpu_factories*/ nullptr, *audio_config_));
59 DCHECK(default_render_factory_);
60 // TODO(erickung): crbug.com/443956. Need to provide right LoadType.
61 LoadType cma_load_type = kLoadTypeMediaSource;
62 scoped_ptr<MediaPipeline> cma_media_pipeline(
63 new MediaPipelineProxy(
64 render_frame_id_,
65 content::RenderThread::Get()->GetIOMessageLoopProxy(),
66 cma_load_type));
67 scoped_ptr<CmaRenderer> cma_renderer(new CmaRenderer(
68 cma_media_pipeline.Pass(), video_renderer_sink, gpu_factories_));
69 scoped_ptr<::media::Renderer> default_media_render(
70 default_render_factory_->CreateRenderer(
71 media_task_runner, media_task_runner, audio_renderer_sink,
72 video_renderer_sink));
73 scoped_ptr<SwitchingMediaRenderer> media_renderer(new SwitchingMediaRenderer(
74 default_media_render.Pass(), cma_renderer.Pass()));
75 return media_renderer.Pass();
78 } // namespace media
79 } // namespace chromecast