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

content/renderer/media/rtc_video_encoder.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_RENDERER_MEDIA_RTC_VIDEO_ENCODER_H_
-#define CONTENT_RENDERER_MEDIA_RTC_VIDEO_ENCODER_H_
-
-#include <vector>
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/threading/thread_checker.h"
-#include "base/time/time.h"
-#include "content/common/content_export.h"
-#include "media/base/video_decoder_config.h"
-#include "third_party/webrtc/modules/video_coding/codecs/interface/video_codec_interface.h"
-#include "ui/gfx/size.h"
-
-namespace base {
-
-class MessageLoopProxy;
-
-}  // namespace base
-
-namespace content {
-
-class RendererGpuVideoAcceleratorFactories;
-
-// RTCVideoEncoder uses a media::VideoEncodeAccelerator to implement a
-// webrtc::VideoEncoder class for WebRTC.  Internally, VEA methods are
-// trampolined to a private RTCVideoEncoder::Impl instance.  The Impl class runs
-// on the worker thread queried from the |gpu_factories_|, which is presently
-// the media thread.  RTCVideoEncoder itself is run and destroyed on the thread
-// it is constructed on, which is presently the libjingle worker thread.
-// Callbacks from the Impl due to its VEA::Client notifications are also posted
-// back to RTCVideoEncoder on this thread.
-class CONTENT_EXPORT RTCVideoEncoder
-    : NON_EXPORTED_BASE(public webrtc::VideoEncoder) {
- public:
-  RTCVideoEncoder(
-      webrtc::VideoCodecType type,
-      media::VideoCodecProfile profile,
-      const scoped_refptr<RendererGpuVideoAcceleratorFactories>& gpu_factories);
-  virtual ~RTCVideoEncoder();
-
-  // webrtc::VideoEncoder implementation.  Tasks are posted to |impl_| using the
-  // appropriate VEA methods.
-  virtual int32_t InitEncode(const webrtc::VideoCodec* codec_settings,
-                             int32_t number_of_cores,
-                             uint32_t max_payload_size) OVERRIDE;
-  virtual int32_t Encode(
-      const webrtc::I420VideoFrame& input_image,
-      const webrtc::CodecSpecificInfo* codec_specific_info,
-      const std::vector<webrtc::VideoFrameType>* frame_types) OVERRIDE;
-  virtual int32_t RegisterEncodeCompleteCallback(
-      webrtc::EncodedImageCallback* callback) OVERRIDE;
-  virtual int32_t Release() OVERRIDE;
-  virtual int32_t SetChannelParameters(uint32_t packet_loss, int rtt) OVERRIDE;
-  virtual int32_t SetRates(uint32_t new_bit_rate, uint32_t frame_rate) OVERRIDE;
-
- private:
-  class Impl;
-  friend class RTCVideoEncoder::Impl;
-
-  // Return an encoded output buffer to WebRTC.
-  void ReturnEncodedImage(scoped_ptr<webrtc::EncodedImage> image,
-                          int32 bitstream_buffer_id);
-
-  void NotifyError(int32_t error);
-
-  base::ThreadChecker thread_checker_;
-
-  // The video codec type, as reported to WebRTC.
-  const webrtc::VideoCodecType video_codec_type_;
-
-  // The video codec profile, to configure the encoder to encode to.
-  const media::VideoCodecProfile video_codec_profile_;
-
-  // Factory for creating VEAs, shared memory buffers, etc.
-  scoped_refptr<RendererGpuVideoAcceleratorFactories> gpu_factories_;
-
-  // Weak pointer and factory for posting back VEA::Client notifications to
-  // RTCVideoEncoder.
-  scoped_ptr<base::WeakPtrFactory<RTCVideoEncoder> > weak_this_factory_;
-
-  // webrtc::VideoEncoder encode complete callback.
-  webrtc::EncodedImageCallback* encoded_image_callback_;
-
-  // The RTCVideoEncoder::Impl that does all the work.
-  scoped_refptr<Impl> impl_;
-
-  // We cannot immediately return error conditions to the WebRTC user of this
-  // class, as there is no error callback in the webrtc::VideoEncoder interface.
-  // Instead, we cache an error status here and return it the next time an
-  // interface entry point is called.
-  int32_t impl_status_;
-
-  DISALLOW_COPY_AND_ASSIGN(RTCVideoEncoder);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_MEDIA_RTC_VIDEO_ENCODER_H_