HW video decode support for --enable-threaded-compositing

media/filters/gpu_video_decoder.h

 // Copyright (c) 2012 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_FILTERS_GPU_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_GPU_VIDEO_DECODER_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 36 matching lines @@
     // Allocate & return a shared memory segment.  Caller is responsible for
     // Close()ing the returned pointer.
     virtual base::SharedMemory* CreateSharedMemory(size_t size) = 0;
 
    protected:
     friend class base::RefCountedThreadSafe<Factories>;
     virtual ~Factories();
   };
 
   GpuVideoDecoder(MessageLoop* message_loop,
+                  MessageLoop* vda_loop,
                   const scoped_refptr<Factories>& factories);
   virtual ~GpuVideoDecoder();
 
   // Filter implementation.
   virtual void Stop(const base::Closure& callback) OVERRIDE;
   virtual void Seek(base::TimeDelta time, const FilterStatusCB& cb) OVERRIDE;
   virtual void Pause(const base::Closure& callback) OVERRIDE;
   virtual void Flush(const base::Closure& callback) OVERRIDE;
 
   // VideoDecoder implementation.
@@ skipping 76 matching lines @@
   // present.
   base::TimeDelta config_frame_duration_;
 
   // Pointer to the demuxer stream that will feed us compressed buffers.
   scoped_refptr<DemuxerStream> demuxer_stream_;
 
   // MessageLoop on which to fire callbacks and trampoline calls to this class
   // if they arrive on other loops.
   scoped_refptr<base::MessageLoopProxy> gvd_loop_proxy_;
 
-  // Creation message loop (typically the render thread).  All calls to vda_
-  // must be made on this loop (and beware this loop is paused during the
-  // Pause/Flush/Stop dance PipelineImpl::Stop() goes through).
-  scoped_refptr<base::MessageLoopProxy> render_loop_proxy_;
+  // Message loop on which to makes all calls to vda_.  (beware this loop may be
+  // paused during the Pause/Flush/Stop dance PipelineImpl::Stop() goes
+  // through).
+  scoped_refptr<base::MessageLoopProxy> vda_loop_proxy_;
 
   scoped_refptr<Factories> factories_;
 
   // Populated during Initialize() (on success) and unchanged thereafter.
   scoped_refptr<VideoDecodeAccelerator> vda_;
 
   // Callbacks that are !is_null() only during their respective operation being
   // asynchronously executed.
   ReadCB pending_read_cb_;
   base::Closure pending_reset_cb_;
@@ skipping 39 matching lines @@
   // Indicates PrepareForShutdownHack()'s been called.  Makes further calls to
   // this class not require the render thread's loop to be processing.
   bool shutting_down_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_GPU_VIDEO_DECODER_H_