MJPEG acceleration for video capture using VAAPI, the GPU and IPC part

content/common/gpu/gpu_channel.h

Index: content/common/gpu/gpu_channel.h
diff --git a/content/common/gpu/gpu_channel.h b/content/common/gpu/gpu_channel.h
index 710b31ab285b3dd01235faefacaab6c8f3561572..8684eba803f85cbfd11b9eedc77a05e1ee12d0eb 100644
--- a/content/common/gpu/gpu_channel.h
+++ b/content/common/gpu/gpu_channel.h
@@ -18,6 +18,7 @@
 #include "content/common/gpu/gpu_command_buffer_stub.h"
 #include "content/common/gpu/gpu_memory_manager.h"
 #include "content/common/gpu/gpu_result_codes.h"
+#include "content/common/gpu/media/gpu_jpeg_decode_accelerator.h"
 #include "content/common/message_router.h"
 #include "gpu/command_buffer/service/valuebuffer_manager.h"
 #include "ipc/ipc_sync_channel.h"
@@ -48,6 +49,7 @@ class MessageFilter;
 namespace content {
 class GpuChannelManager;
 class GpuChannelMessageFilter;
+class GpuJpegDecodeAccelerator;
 class GpuWatchdog;
 
 // Encapsulates an IPC channel between the GPU process and one renderer
@@ -168,6 +170,10 @@ class GpuChannel : public IPC::Listener, public IPC::Sender,
     return pending_valuebuffer_state_.get();
   }
 
+#if 0
+  void ReleaseJpegDecoder(int32 route_id);
+#endif

[piman, 2015/05/26 23:31:53]

nit: remove.

[kcwu, 2015/05/27 14:13:23]

Done.

+
  private:
   friend class GpuChannelMessageFilter;
 
@@ -184,6 +190,7 @@ class GpuChannel : public IPC::Listener, public IPC::Sender,
       int32 route_id,
       bool* succeeded);
   void OnDestroyCommandBuffer(int32 route_id);
+  void OnCreateJpegDecoder(int32 route_id, IPC::Message* reply_msg);
 
   // Decrement the count of unhandled IPC messages and defer preemption.
   void MessageProcessed();
@@ -229,6 +236,8 @@ class GpuChannel : public IPC::Listener, public IPC::Sender,
   typedef IDMap<GpuCommandBufferStub, IDMapOwnPointer> StubMap;
   StubMap stubs_;
 
+  scoped_ptr<GpuJpegDecodeAccelerator> jpeg_decoder_;
+
   bool log_messages_;  // True if we should log sent and received messages.
   gpu::gles2::DisallowedFeatures disallowed_features_;
   GpuWatchdog* watchdog_;