content/renderer/media/rtc_video_encoder_factory.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_FACTORY_H_
#define CONTENT_RENDERER_MEDIA_RTC_VIDEO_ENCODER_FACTORY_H_

#include <vector>

#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "content/common/content_export.h"
#include "third_party/libjingle/source/talk/media/webrtc/webrtcvideoencoderfactory.h"

namespace content {

class RendererGpuVideoAcceleratorFactories;

// This class creates RTCVideoEncoder instances (each wrapping a
// media::VideoEncodeAccelerator) on behalf of the WebRTC stack.
class CONTENT_EXPORT RTCVideoEncoderFactory
    : NON_EXPORTED_BASE(public cricket::WebRtcVideoEncoderFactory) {
 public:
  explicit RTCVideoEncoderFactory(
      const scoped_refptr<RendererGpuVideoAcceleratorFactories>& gpu_factories);
  virtual ~RTCVideoEncoderFactory();

  // cricket::WebRtcVideoEncoderFactory implementation.
  virtual webrtc::VideoEncoder* CreateVideoEncoder(
      webrtc::VideoCodecType type) OVERRIDE;
  virtual void AddObserver(Observer* observer) OVERRIDE;
  virtual void RemoveObserver(Observer* observer) OVERRIDE;
  virtual const std::vector<VideoCodec>& codecs() const OVERRIDE;
  virtual void DestroyVideoEncoder(webrtc::VideoEncoder* encoder) OVERRIDE;

 private:
  const scoped_refptr<RendererGpuVideoAcceleratorFactories> gpu_factories_;

  // Codec support list of cricket::WebRtcVideoEncoderFactory::VideoCodec
  // instances.
  std::vector<VideoCodec> codecs_;

  DISALLOW_COPY_AND_ASSIGN(RTCVideoEncoderFactory);
};

}  // namespace content

#endif  //  CONTENT_RENDERER_MEDIA_RTC_VIDEO_ENCODER_FACTORY_H_