MJPEG acceleration for video capture using VAAPI

content/browser/renderer_host/media/video_capture_buffer_pool.h

 // Copyright (c) 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 CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 74 matching lines @@
   // ReserveForProducer(), and not already passed to HoldForConsumers().
   void HoldForConsumers(int buffer_id, int num_clients);
 
   // Indicate that one or more consumers are done with a particular buffer. This
   // effectively is the opposite of HoldForConsumers(). Once the consumers are
   // done, a buffer is returned to the pool for reuse.
   void RelinquishConsumerHold(int buffer_id, int num_clients);
 
   int count() const { return count_; }
 
+  base::SharedMemoryHandle GetBufferSharedMemory(int buffer_id);
+
  private:
   friend class base::RefCountedThreadSafe<VideoCaptureBufferPool>;
 
   // Per-buffer state.
   struct Buffer {
     Buffer();
 
     // The memory created to be shared with renderer processes.
     base::SharedMemory shared_memory;
 
@@ skipping 23 matching lines @@
 
   // The buffers, indexed by |buffer_id|.
   BufferMap buffers_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureBufferPool);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_