Add a GpuMemoryBuffer pool that creates hardware backed VideoFrames.

media/renderers/video_renderer_impl.h

 // Copyright 2013 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_RENDERERS_VIDEO_RENDERER_IMPL_H_
 #define MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_
 
 #include <deque>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/condition_variable.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/platform_thread.h"
 #include "base/timer/timer.h"
 #include "media/base/decryptor.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/media_log.h"
 #include "media/base/pipeline_status.h"
 #include "media/base/video_decoder.h"
 #include "media/base/video_frame.h"
 #include "media/base/video_renderer.h"
 #include "media/base/video_renderer_sink.h"
 #include "media/filters/decoder_stream.h"
 #include "media/filters/video_renderer_algorithm.h"
+#include "media/renderers/gpu_video_accelerator_factories.h"
+#include "media/video/gpu_memory_buffer_video_frame_pool.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 class TickClock;
 }
 
 namespace media {
 
 // VideoRendererImpl creates its own thread for the sole purpose of timing frame
 // presentation.  It handles reading from the VideoFrameStream and stores the
 // results in a queue of decoded frames and executing a callback when a frame is
 // ready for rendering.
 class MEDIA_EXPORT VideoRendererImpl
     : public VideoRenderer,
       public NON_EXPORTED_BASE(VideoRendererSink::RenderCallback),
       public base::PlatformThread::Delegate {
  public:
   // |decoders| contains the VideoDecoders to use when initializing.
   //
   // Implementors should avoid doing any sort of heavy work in this method and
   // instead post a task to a common/worker thread to handle rendering.  Slowing
   // down the video thread may result in losing synchronization with audio.
   //
   // Setting |drop_frames_| to true causes the renderer to drop expired frames.
   VideoRendererImpl(
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       VideoRendererSink* sink,
       ScopedVector<VideoDecoder> decoders,
       bool drop_frames,
+      scoped_refptr<GpuVideoAcceleratorFactories> gpu_factories,
       const scoped_refptr<MediaLog>& media_log);
   ~VideoRendererImpl() override;
 
   // VideoRenderer implementation.
   void Initialize(DemuxerStream* stream,
                   const PipelineStatusCB& init_cb,
                   const SetDecryptorReadyCB& set_decryptor_ready_cb,
                   const StatisticsCB& statistics_cb,
                   const BufferingStateCB& buffering_state_cb,
                   const base::Closure& ended_cb,
@@ skipping 96 matching lines @@
   // StartSink() and StopSink() to ensure background rendering is started.
   VideoRendererSink* const sink_;
   bool sink_started_;
 
   // Used for accessing data members.
   base::Lock lock_;
 
   // Provides video frames to VideoRendererImpl.
   scoped_ptr<VideoFrameStream> video_frame_stream_;
 
+  // Pool of GpuMemoryBuffers and resources used to create hardware frames.
+  scoped_ptr<GpuMemoryBufferVideoFramePool> gpu_memory_buffer_pool_;
+
   // Flag indicating low-delay mode.
   bool low_delay_;
 
   // Queue of incoming frames yet to be painted.
   typedef std::deque<scoped_refptr<VideoFrame>> VideoFrameQueue;
   VideoFrameQueue ready_frames_;
 
   // Keeps track of whether we received the end of stream buffer and finished
   // rendering.
   bool received_end_of_stream_;
@@ skipping 93 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<VideoRendererImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_RENDERERS_VIDEO_RENDERER_IMPL_H_