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   DCHECK(audio_renderer_sink);
  43
  44   // Create our audio decoders and renderer.
  45   ScopedVector<AudioDecoder> audio_decoders;
  46
  47 #if !defined(MEDIA_DISABLE_FFMPEG)
  48   audio_decoders.push_back(new FFmpegAudioDecoder(
  49       media_task_runner, base::Bind(&MediaLog::AddLogEvent, media_log_)));
  50 #endif
  51
  52   audio_decoders.push_back(new OpusAudioDecoder(media_task_runner));
  53
  54   scoped_ptr<AudioRenderer> audio_renderer(new AudioRendererImpl(
  55       media_task_runner, audio_renderer_sink, audio_decoders.Pass(),
  56       audio_hardware_config_, media_log_));
  57
  58   // Create our video decoders and renderer.
  59   ScopedVector<VideoDecoder> video_decoders;
  60
  61   // |gpu_factories_| requires that its entry points be called on its
  62   // |GetTaskRunner()|.  Since |pipeline_| will own decoders created from the
  63   // factories, require that their message loops are identical.
  64   DCHECK(!gpu_factories_.get() ||
  65          (gpu_factories_->GetTaskRunner() == media_task_runner.get()));
  66
  67   if (gpu_factories_.get())
  68     video_decoders.push_back(new GpuVideoDecoder(gpu_factories_));
  69
  70 #if !defined(MEDIA_DISABLE_LIBVPX)
  71   video_decoders.push_back(new VpxVideoDecoder(media_task_runner));
  72 #endif
  73
  74 #if !defined(MEDIA_DISABLE_FFMPEG)
  75   video_decoders.push_back(new FFmpegVideoDecoder(media_task_runner));
  76 #endif
  77
  78   scoped_ptr<VideoRenderer> video_renderer(new VideoRendererImpl(
  79       media_task_runner, video_decoders.Pass(), true, media_log_));
  80
  81   // Create renderer.
  82   return scoped_ptr<Renderer>(new RendererImpl(
  83       media_task_runner, audio_renderer.Pass(), video_renderer.Pass()));
  84 }
  85
  86 }  // namespace media