Implement MojoAudioRendererSink and use it in UtilityMojoMediaClient

media/mojo/clients/mojo_renderer.h

 // 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.
 
 #ifndef MEDIA_MOJO_CLIENTS_MOJO_RENDERER_H_
 #define MEDIA_MOJO_CLIENTS_MOJO_RENDERER_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/time/default_tick_clock.h"
 #include "base/unguessable_token.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/renderer.h"
 #include "media/base/time_delta_interpolator.h"
 #include "media/mojo/interfaces/renderer.mojom.h"
 #include "mojo/public/cpp/bindings/associated_binding.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 
+class AudioRendererSink;
 class MediaResource;
+class MojoAudioRendererSinkImpl;
 class MojoDemuxerStreamImpl;
 class MojoVideoRendererSinkImpl;
 class VideoOverlayFactory;
 class VideoRendererSink;
 
 // A media::Renderer that proxies to a mojom::Renderer. That
 // mojom::Renderer proxies back to the MojoRenderer via the
 // mojom::RendererClient interface.
 //
 // This class can be created on any thread, where the |remote_renderer| is
 // connected and passed in the constructor. Then Initialize() will be called on
 // the |task_runner| and starting from that point this class is bound to the
 // |task_runner|*. That means all Renderer and RendererClient methods will be
 // called/dispached on the |task_runner|. The only exception is GetMediaTime(),
 // which can be called on any thread.
 class MojoRenderer : public Renderer, public mojom::RendererClient {
  public:
   MojoRenderer(const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
                std::unique_ptr<VideoOverlayFactory> video_overlay_factory,
+               AudioRendererSink* audio_renderer_sink,
                VideoRendererSink* video_renderer_sink,
                mojom::RendererPtr remote_renderer);
   ~MojoRenderer() override;
 
   // Renderer implementation.
   void Initialize(MediaResource* media_resource,
                   media::RendererClient* client,
                   const PipelineStatusCB& init_cb) override;
   void SetCdm(CdmContext* cdm_context,
               const CdmAttachedCB& cdm_attached_cb) override;
@@ skipping 39 matching lines @@
   // MediaResource::Type::URL.
   void InitializeRendererFromUrl(media::RendererClient* client);
 
   // Callback for connection error on |remote_renderer_|.
   void OnConnectionError();
 
   // Callback for connection error on any of |streams_|. The |stream| parameter
   // indicates which stream the error happened on.
   void OnDemuxerStreamConnectionError(MojoDemuxerStreamImpl* stream);
 
+  // Callback for connection error on |mojo_audio_renderer_sink_|.
+  void OnAudioRendererSinkConnectionError();
+
   // Callback for connection error on |mojo_video_renderer_sink_|.
   void OnVideoRendererSinkConnectionError();
 
   // Callbacks for |remote_renderer_| methods.
   void OnInitialized(media::RendererClient* client, bool success);
   void OnFlushed();
   void OnCdmAttached(bool success);
 
   void CancelPendingCallbacks();
 
   // |task_runner| on which all methods are invoked, except for GetMediaTime(),
   // which can be called on any thread.
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   // Overlay factory used to create overlays for video frames rendered
   // by the remote renderer.
   std::unique_ptr<VideoOverlayFactory> video_overlay_factory_;
 
+  AudioRendererSink* audio_renderer_sink_ = nullptr;
+
   // Video frame overlays are rendered onto this sink.
   // Rendering of a new overlay is only needed when video natural size changes.
   VideoRendererSink* video_renderer_sink_ = nullptr;
 
   // Provider of audio/video DemuxerStreams. Must be valid throughout the
   // lifetime of |this|.
   MediaResource* media_resource_ = nullptr;
 
   // Client of |this| renderer passed in Initialize.
   media::RendererClient* client_ = nullptr;
@@ skipping 21 matching lines @@
 
   PipelineStatusCB init_cb_;
   base::Closure flush_cb_;
   CdmAttachedCB cdm_attached_cb_;
 
   // Lock used to serialize access for |time_interpolator_|.
   mutable base::Lock lock_;
   base::DefaultTickClock media_clock_;
   media::TimeDeltaInterpolator media_time_interpolator_;
 
+  std::unique_ptr<MojoAudioRendererSinkImpl> mojo_audio_renderer_sink_;
   std::unique_ptr<MojoVideoRendererSinkImpl> mojo_video_renderer_sink_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoRenderer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_CLIENTS_MOJO_RENDERER_H_