Revert 217691 "Merge 217276 "Add media::VideoEncodeAccelerator w..."

content/common/gpu/client/gpu_video_encode_accelerator_host.h

-// Copyright 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_COMMON_GPU_CLIENT_GPU_VIDEO_ENCODE_ACCELERATOR_HOST_H_
-#define CONTENT_COMMON_GPU_CLIENT_GPU_VIDEO_ENCODE_ACCELERATOR_HOST_H_
-
-#include <vector>
-
-#include "base/containers/hash_tables.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "ipc/ipc_listener.h"
-#include "media/video/video_encode_accelerator.h"
-
-namespace gfx {
-
-class Size;
-
-}  // namespace gfx
-
-namespace media {
-
-class VideoFrame;
-
-}  // namespace media
-
-namespace content {
-
-class GpuChannelHost;
-
-// This class is the renderer-side host for the VideoEncodeAccelerator in the
-// GPU process, coordinated over IPC.
-class GpuVideoEncodeAcceleratorHost
-    : public IPC::Listener,
-      public media::VideoEncodeAccelerator,
-      public base::SupportsWeakPtr<GpuVideoEncodeAcceleratorHost> {
- public:
-  // |client| is assumed to outlive this object.  Since the GpuChannelHost does
-  // _not_ own this object, a reference to |gpu_channel_host| is taken.
-  GpuVideoEncodeAcceleratorHost(
-      media::VideoEncodeAccelerator::Client* client,
-      const scoped_refptr<GpuChannelHost>& gpu_channel_host,
-      int32 route_id);
-  virtual ~GpuVideoEncodeAcceleratorHost();
-
-  // Static query for the supported profiles.  This query proxies to
-  // GpuVideoEncodeAccelerator::GetSupportedProfiles().
-  static std::vector<SupportedProfile> GetSupportedProfiles();
-
-  // IPC::Listener implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-  virtual void OnChannelError() OVERRIDE;
-
-  // media::VideoEncodeAccelerator implementation.
-  virtual void Initialize(media::VideoFrame::Format format,
-                          const gfx::Size& input_visible_size,
-                          media::VideoCodecProfile output_profile,
-                          uint32 initial_bitrate) OVERRIDE;
-  virtual void Encode(const scoped_refptr<media::VideoFrame>& frame,
-                      bool force_keyframe) OVERRIDE;
-  virtual void UseOutputBitstreamBuffer(
-      const media::BitstreamBuffer& buffer) OVERRIDE;
-  virtual void RequestEncodingParametersChange(uint32 bitrate,
-                                               uint32 framerate_num) OVERRIDE;
-  virtual void Destroy() OVERRIDE;
-
- private:
-  // Notify |client_| when an error has occured.  Used when notifying from
-  // within a media::VideoEncodeAccelerator entry point, to avoid re-entrancy.
-  void NotifyError(Error error);
-
-  // IPC handlers, proxying media::VideoEncodeAccelerator::Client for the GPU
-  // process.
-  void OnNotifyInitializeDone();
-  void OnRequireBitstreamBuffers(uint32 input_count,
-                                 const gfx::Size& input_coded_size,
-                                 uint32 output_buffer_size);
-  void OnNotifyInputDone(int32 frame_id);
-  void OnBitstreamBufferReady(int32 bitstream_buffer_id,
-                              uint32 payload_size,
-                              bool key_frame);
-  void OnNotifyError(Error error);
-
-  void Send(IPC::Message* message);
-
-  // Weak pointer for client callbacks on the
-  // media::VideoEncodeAccelerator::Client interface.
-  media::VideoEncodeAccelerator::Client* client_;
-  // |client_ptr_factory_| is used for callbacks that need to be done through
-  // a PostTask() to avoid re-entrancy on the client.
-  base::WeakPtrFactory<VideoEncodeAccelerator::Client> client_ptr_factory_;
-
-  // IPC channel and route ID.
-  scoped_refptr<GpuChannelHost> channel_;
-  const int32 route_id_;
-
-  // media::VideoFrames sent to the encoder.
-  // base::IDMap not used here, since that takes pointers, not scoped_refptr.
-  typedef base::hash_map<int32, scoped_refptr<media::VideoFrame> > FrameMap;
-  FrameMap frame_map_;
-
-  // ID serial number for the next frame to send to the GPU process.
-  int32 next_frame_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuVideoEncodeAcceleratorHost);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_CLIENT_GPU_VIDEO_ENCODE_ACCELERATOR_HOST_H_