Make VEA client of command buffer; move sync. IPC to VDA/VEA::Initialize()

content/common/gpu/gpu_messages.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.
 
 // Multiply-included message file, hence no include guard here, but see below
 // for a much smaller-than-usual include guard section.
 
 #include <string>
 #include <vector>
 
@@ skipping 548 matching lines @@
 
 // Destroy a previously created transfer buffer.
 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_DestroyTransferBuffer,
                     int32 /* id */)
 
 // Create and initialize a hardware video decoder, returning its new route_id.
 // Created decoders should be freed with AcceleratedVideoDecoderMsg_Destroy when
 // no longer needed.
 IPC_SYNC_MESSAGE_ROUTED1_1(GpuCommandBufferMsg_CreateVideoDecoder,
                            media::VideoCodecProfile /* profile */,
-                           int /* route_id */)
+                           int32 /* route_id */)
+
+// Create and initialize a hardware video encoder, returning its new route_id.
+// Created encoders should be freed with AcceleratedVideoEncoderMsg_Destroy when
+// no longer needed.
+IPC_SYNC_MESSAGE_ROUTED4_1(GpuCommandBufferMsg_CreateVideoEncoder,
+                           media::VideoFrame::Format /* input_format */,
+                           gfx::Size /* input_visible_size */,
+                           media::VideoCodecProfile /* output_profile */,
+                           uint32 /* initial_bitrate */,
+                           int32 /* route_id  */)
 
 // Tells the proxy that there was an error and the command buffer had to be
 // destroyed for some reason.
 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_Destroyed,
                     gpu::error::ContextLostReason /* reason */)
 
 // Request that the GPU process reply with the given message. Reply may be
 // delayed.
 IPC_MESSAGE_ROUTED1(GpuCommandBufferMsg_Echo,
                     IPC::Message /* reply */)
@@ skipping 130 matching lines @@
 IPC_MESSAGE_ROUTED0(AcceleratedVideoDecoderHostMsg_ResetDone)
 
 // Video decoder has encountered an error.
 IPC_MESSAGE_ROUTED1(AcceleratedVideoDecoderHostMsg_ErrorNotification,
                     uint32) /* Error ID */
 
 //------------------------------------------------------------------------------
 // Accelerated Video Encoder Messages
 // These messages are sent from the Renderer process to GPU process.
 
-// Initialize the accelerated encoder.
-IPC_MESSAGE_ROUTED4(AcceleratedVideoEncoderMsg_Initialize,
-                    media::VideoFrame::Format /* input_format */,
-                    gfx::Size /* input_visible_size */,
-                    media::VideoCodecProfile /* output_profile */,
-                    uint32 /* initial_bitrate */)
-
 // Queue a input buffer to the encoder to encode. |frame_id| will be returned by
 // AcceleratedVideoEncoderHostMsg_NotifyEncodeDone.
 IPC_MESSAGE_ROUTED4(AcceleratedVideoEncoderMsg_Encode,
                     int32 /* frame_id */,
                     base::SharedMemoryHandle /* buffer_handle */,
                     uint32 /* buffer_size */,
                     bool /* force_keyframe */)
 
 // Queue a buffer to the encoder for use in returning output.  |buffer_id| will
 // be returned by AcceleratedVideoEncoderHostMsg_BitstreamBufferReady.
 IPC_MESSAGE_ROUTED3(AcceleratedVideoEncoderMsg_UseOutputBitstreamBuffer,
                     int32 /* buffer_id */,
                     base::SharedMemoryHandle /* buffer_handle */,
                     uint32 /* buffer_size */)
 
 // Request a runtime encoding parameter change.
 IPC_MESSAGE_ROUTED2(AcceleratedVideoEncoderMsg_RequestEncodingParametersChange,
                     uint32 /* bitrate */,
                     uint32 /* framerate */)
 
 //------------------------------------------------------------------------------
 // Accelerated Video Encoder Host Messages
 // These messages are sent from GPU process to Renderer process.
 
-// Notify of the completion of initialization.
-IPC_MESSAGE_ROUTED0(AcceleratedVideoEncoderHostMsg_NotifyInitializeDone)
-
 // Notify renderer of the input/output buffer requirements of the encoder.
 IPC_MESSAGE_ROUTED3(AcceleratedVideoEncoderHostMsg_RequireBitstreamBuffers,
                     uint32 /* input_count */,
                     gfx::Size /* input_coded_size */,
                     uint32 /* output_buffer_size */)
 
 // Notify the renderer that the encoder has finished using an input buffer.
 // There is no congruent entry point in the media::VideoEncodeAccelerator
 // interface, in VEA this same done condition is indicated by dropping the
 // reference to the media::VideoFrame passed to VEA::Encode().
 IPC_MESSAGE_ROUTED1(AcceleratedVideoEncoderHostMsg_NotifyInputDone,
                     int32 /* frame_id */)
 
 // Notify the renderer that an output buffer has been filled with encoded data.
 IPC_MESSAGE_ROUTED3(AcceleratedVideoEncoderHostMsg_BitstreamBufferReady,
                     int32 /* bitstream_buffer_id */,
                     uint32 /* payload_size */,
                     bool /* key_frame */)
 
 // Report error condition.
 IPC_MESSAGE_ROUTED1(AcceleratedVideoEncoderHostMsg_NotifyError,
                     media::VideoEncodeAccelerator::Error /* error */)
+
+// Send destroy request to the encoder.
+IPC_MESSAGE_ROUTED0(AcceleratedVideoEncoderMsg_Destroy)