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/filters/ffmpeg_audio_decoder.h"
  11 #include "media/filters/ffmpeg_video_decoder.h"
  12 #endif
  13 #include "media/filters/gpu_video_accelerator_factories.h"
  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/renderer_impl.h"
  18 #include "media/renderers/video_renderer_impl.h"
  19 #if !defined(MEDIA_DISABLE_LIBVPX)
  20 #include "media/filters/vpx_video_decoder.h"
  21 #endif
  22
  23 namespace media {
  24
  25 #if !defined(MEDIA_DISABLE_FFMPEG)
  26 // TODO(xhwang): We are abusing CreateMediaSourceErrorEvent() in a lot of places
  27 // that are not MediaSource related. Fix this in a separate CL.
  28 static void LogError(const scoped_refptr<MediaLog>& media_log,
  29                      const std::string& error) {
  30   media_log->AddEvent(media_log->CreateMediaSourceErrorEvent(error));
  31 }
  32 #endif
  33
  34 DefaultRendererFactory::DefaultRendererFactory(
  35     const scoped_refptr<MediaLog>& media_log,
  36     const scoped_refptr<GpuVideoAcceleratorFactories>& gpu_factories,
  37     const AudioHardwareConfig& audio_hardware_config)
  38     : media_log_(media_log),
  39       gpu_factories_(gpu_factories),
  40       audio_hardware_config_(audio_hardware_config) {
  41 }
  42
  43 DefaultRendererFactory::~DefaultRendererFactory() {
  44 }
  45
  46 // TODO(xhwang): Use RendererConfig to customize what decoders we use.
  47 scoped_ptr<Renderer> DefaultRendererFactory::CreateRenderer(
  48     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
  49     AudioRendererSink* audio_renderer_sink) {
  50   DCHECK(audio_renderer_sink);
  51
  52   // Create our audio decoders and renderer.
  53   ScopedVector<AudioDecoder> audio_decoders;
  54
  55 #if !defined(MEDIA_DISABLE_FFMPEG)
  56   audio_decoders.push_back(new FFmpegAudioDecoder(
  57       media_task_runner, base::Bind(&LogError, media_log_)));
  58 #endif
  59
  60   audio_decoders.push_back(new OpusAudioDecoder(media_task_runner));
  61
  62   scoped_ptr<AudioRenderer> audio_renderer(new AudioRendererImpl(
  63       media_task_runner, audio_renderer_sink, audio_decoders.Pass(),
  64       audio_hardware_config_, media_log_));
  65
  66   // Create our video decoders and renderer.
  67   ScopedVector<VideoDecoder> video_decoders;
  68
  69   // |gpu_factories_| requires that its entry points be called on its
  70   // |GetTaskRunner()|.  Since |pipeline_| will own decoders created from the
  71   // factories, require that their message loops are identical.
  72   DCHECK(!gpu_factories_.get() ||
  73          (gpu_factories_->GetTaskRunner() == media_task_runner.get()));
  74
  75   if (gpu_factories_.get())
  76     video_decoders.push_back(new GpuVideoDecoder(gpu_factories_));
  77
  78 #if !defined(MEDIA_DISABLE_LIBVPX)
  79   video_decoders.push_back(new VpxVideoDecoder(media_task_runner));
  80 #endif
  81
  82 #if !defined(MEDIA_DISABLE_FFMPEG)
  83   video_decoders.push_back(new FFmpegVideoDecoder(media_task_runner));
  84 #endif
  85
  86   scoped_ptr<VideoRenderer> video_renderer(new VideoRendererImpl(
  87       media_task_runner, video_decoders.Pass(), true, media_log_));
  88
  89   // Create renderer.
  90   return scoped_ptr<Renderer>(new RendererImpl(
  91       media_task_runner, audio_renderer.Pass(), video_renderer.Pass()));
  92 }
  93
  94 }  // namespace media