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 40 matching lines @@
 
   // One-time (per client/per-buffer) initialization to share a particular
   // buffer to a process. The size of the allocation is returned as
   // |memory_size|.
   base::SharedMemoryHandle ShareToProcess(int buffer_id,
                                           base::ProcessHandle process_handle,
                                           size_t* memory_size);
 
   // Query the memory parameters of |buffer_id|. Fills in parameters in the
   // pointer arguments, and returns true iff the buffer exists.
-  bool GetBufferInfo(int buffer_id, void** memory, size_t* size);
+  bool GetBufferInfo(int buffer_id, void** memory, size_t* size,
+                     base::SharedMemoryHandle* handle);
 
   // Reserve or allocate a buffer of at least |size| bytes and return its id.
   // This will fail (returning kInvalidId) if the pool already is at its |count|
   // limit of the number of allocations, and all allocated buffers are in use by
   // the producer and/or consumers.
   //
   // If successful, the reserved buffer remains reserved (and writable by the
   // producer) until ownership is transferred either to the consumer via
   // HoldForConsumers(), or back to the pool with
   // RelinquishProducerReservation().
@@ skipping 56 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_