Add video-rendering to mojo media pipeline.

media/mojo/services/mojo_renderer_impl.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_SERVICES_MOJO_RENDERER_IMPL_H_
 #define MEDIA_MOJO_SERVICES_MOJO_RENDERER_IMPL_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "media/base/renderer.h"
 #include "media/mojo/interfaces/renderer.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 
 class DemuxerStreamProvider;
+class VideoOverlayFactory;
+class VideoRendererSink;
 
 // A media::Renderer that proxies to a mojom::Renderer. That
 // mojom::Renderer proxies back to the MojoRendererImpl 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 MojoRendererImpl : public Renderer, public mojom::RendererClient {
  public:
   MojoRendererImpl(
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
+      std::unique_ptr<VideoOverlayFactory> video_overlay_factory,
+      VideoRendererSink* video_renderer_sink,
       mojom::RendererPtr remote_renderer);
   ~MojoRendererImpl() override;
 
   // Renderer implementation.
   void Initialize(DemuxerStreamProvider* demuxer_stream_provider,
                   media::RendererClient* client,
                   const PipelineStatusCB& init_cb) override;
   void SetCdm(CdmContext* cdm_context,
               const CdmAttachedCB& cdm_attached_cb) override;
   void Flush(const base::Closure& flush_cb) override;
@@ skipping 17 matching lines @@
   // Callback for connection error on |remote_renderer_|.
   void OnConnectionError();
 
   // Called when |remote_renderer_| has finished initializing.
   void OnInitialized(bool success);
 
   // |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_;
+
+  // 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_;
+
   // Provider of audio/video DemuxerStreams. Must be valid throughout the
   // lifetime of |this|.
   DemuxerStreamProvider* demuxer_stream_provider_;
 
   // Client of |this| renderer passed in Initialize.
   media::RendererClient* client_;
 
   // This class is constructed on one thread and used exclusively on another
   // thread. This member is used to safely pass the RendererPtr from one thread
   // to another. It is set in the constructor and is consumed in Initialize().
@@ skipping 12 matching lines @@
   // Lock used to serialize access for |time_|.
   mutable base::Lock lock_;
   base::TimeDelta time_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_SERVICES_MOJO_RENDERER_IMPL_H_