Add offset support to BitstreamBuffer.

content/common/gpu/media/vaapi_jpeg_decode_accelerator.h

 // Copyright 2015 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_COMMON_GPU_MEDIA_VAAPI_JPEG_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_VAAPI_JPEG_DECODE_ACCELERATOR_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/non_thread_safe.h"
 #include "base/threading/thread.h"
 #include "content/common/content_export.h"
+#include "content/common/gpu/media/shared_memory_region.h"
 #include "content/common/gpu/media/vaapi_jpeg_decoder.h"
 #include "content/common/gpu/media/vaapi_wrapper.h"
 #include "media/base/bitstream_buffer.h"
 #include "media/video/jpeg_decode_accelerator.h"
 
 namespace content {
 
 // Class to provide JPEG decode acceleration for Intel systems with hardware
 // support for it, and on which libva is available.
 // Decoding tasks are performed in a separate decoding thread.
@@ skipping 12 matching lines @@
   // media::JpegDecodeAccelerator implementation.
   bool Initialize(media::JpegDecodeAccelerator::Client* client) override;
   void Decode(const media::BitstreamBuffer& bitstream_buffer,
               const scoped_refptr<media::VideoFrame>& video_frame) override;
   bool IsSupported() override;
 
  private:
   // An input buffer and the corresponding output video frame awaiting
   // consumption, provided by the client.
   struct DecodeRequest {
-    DecodeRequest(const media::BitstreamBuffer& bitstream_buffer,
-                  scoped_ptr<base::SharedMemory> shm,
+    DecodeRequest(int32_t bitstream_buffer_id,
+                  scoped_ptr<SharedMemoryRegion> shm,
                   const scoped_refptr<media::VideoFrame>& video_frame);
     ~DecodeRequest();
 
-    media::BitstreamBuffer bitstream_buffer;
-    scoped_ptr<base::SharedMemory> shm;
+    int32_t bitstream_buffer_id;
+    scoped_ptr<SharedMemoryRegion> shm;
     scoped_refptr<media::VideoFrame> video_frame;
   };
 
   // Notifies the client that an error has occurred and decoding cannot
   // continue.
   void NotifyError(int32_t bitstream_buffer_id, Error error);
   void NotifyErrorFromDecoderThread(int32_t bitstream_buffer_id, Error error);
   void VideoFrameReady(int32_t bitstream_buffer_id);
 
   // Processes one decode |request|.
@@ skipping 43 matching lines @@
 
   // The WeakPtrFactory for |weak_this_|.
   base::WeakPtrFactory<VaapiJpegDecodeAccelerator> weak_this_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VaapiJpegDecodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_VAAPI_JPEG_DECODE_ACCELERATOR_H_