media/renderers/default_renderer_factory.cc

   1 // Copyright 2014 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.
   4
   5 #include "media/renderers/default_renderer_factory.h"
   6
   7 #include "base/bind.h"
   8 #include "base/single_thread_task_runner.h"
   9 #if !defined(MEDIA_DISABLE_FFMPEG)
  10 #include "media/base/media_log.h"
  11 #include "media/filters/ffmpeg_audio_decoder.h"
  12 #include "media/filters/ffmpeg_video_decoder.h"
  13 #endif
  14 #include "media/filters/gpu_video_decoder.h"
  15 #include "media/filters/opus_audio_decoder.h"
  16 #include "media/renderers/audio_renderer_impl.h"
  17 #include "media/renderers/gpu_video_accelerator_factories.h"
  18 #include "media/renderers/renderer_impl.h"
  19 #include "media/renderers/video_renderer_impl.h"
  20 #if !defined(MEDIA_DISABLE_LIBVPX)
  21 #include "media/filters/vpx_video_decoder.h"
  22 #endif
  23
  24 namespace media {
  25
  26 DefaultRendererFactory::DefaultRendererFactory(
  27     const scoped_refptr<MediaLog>& media_log,
  28     const scoped_refptr<GpuVideoAcceleratorFactories>& gpu_factories,
  29     const AudioHardwareConfig& audio_hardware_config)
  30     : media_log_(media_log),
  31       gpu_factories_(gpu_factories),
  32       audio_hardware_config_(audio_hardware_config) {
  33 }
  34
  35 DefaultRendererFactory::~DefaultRendererFactory() {
  36 }
  37
  38 // TODO(xhwang): Use RendererConfig to customize what decoders we use.
  39 scoped_ptr<Renderer> DefaultRendererFactory::CreateRenderer(
  40     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
  41     AudioRendererSink* audio_renderer_sink,
  42     VideoRendererSink* video_renderer_sink) {
  43   DCHECK(audio_renderer_sink);
  44
  45   // Create our audio decoders and renderer.
  46   ScopedVector<AudioDecoder> audio_decoders;
  47
  48 #if !defined(MEDIA_DISABLE_FFMPEG)
  49   audio_decoders.push_back(new FFmpegAudioDecoder(
  50       media_task_runner, base::Bind(&MediaLog::AddLogEvent, media_log_)));
  51 #endif
  52
  53   audio_decoders.push_back(new OpusAudioDecoder(media_task_runner));
  54
  55   scoped_ptr<AudioRenderer> audio_renderer(new AudioRendererImpl(
  56       media_task_runner, audio_renderer_sink, audio_decoders.Pass(),
  57       audio_hardware_config_, media_log_));
  58
  59   // Create our video decoders and renderer.
  60   ScopedVector<VideoDecoder> video_decoders;
  61
  62   // |gpu_factories_| requires that its entry points be called on its
  63   // |GetTaskRunner()|.  Since |pipeline_| will own decoders created from the
  64   // factories, require that their message loops are identical.
  65   DCHECK(!gpu_factories_.get() ||
  66          (gpu_factories_->GetTaskRunner() == media_task_runner.get()));
  67
  68   if (gpu_factories_.get())
  69     video_decoders.push_back(new GpuVideoDecoder(gpu_factories_));
  70
  71 #if !defined(MEDIA_DISABLE_LIBVPX)
  72   video_decoders.push_back(new VpxVideoDecoder(media_task_runner));
  73 #endif
  74
  75 #if !defined(MEDIA_DISABLE_FFMPEG)
  76   video_decoders.push_back(new FFmpegVideoDecoder(media_task_runner));
  77 #endif
  78
  79   scoped_ptr<VideoRenderer> video_renderer(new VideoRendererImpl(
  80       media_task_runner, video_renderer_sink, video_decoders.Pass(), true,
  81       gpu_factories_, media_log_));
  82
  83   // Create renderer.
  84   return scoped_ptr<Renderer>(new RendererImpl(
  85       media_task_runner, audio_renderer.Pass(), video_renderer.Pass()));
  86 }
  87
  88 }  // namespace media