content/renderer/media/webrtc/webrtc_video_frame_adapter.h

// Copyright 2015 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_WEBRTC_WEBRTC_VIDEO_FRAME_ADAPTER_H_
#define CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_VIDEO_FRAME_ADAPTER_H_

#include <stdint.h>

#include "media/base/video_frame.h"
#include "third_party/webrtc/api/video/video_frame_buffer.h"

namespace content {
// Thin adapter from media::VideoFrame to webrtc::VideoFrameBuffer. This
// implementation is read-only and will return null if trying to get a
// non-const pointer to the pixel data. This object will be accessed from
// different threads, but that's safe since it's read-only.
class WebRtcVideoFrameAdapter : public webrtc::VideoFrameBuffer {
 public:
  WebRtcVideoFrameAdapter(const scoped_refptr<media::VideoFrame>& frame);

  scoped_refptr<media::VideoFrame> getMediaVideoFrame() const { return frame_; }

 private:
  Type type() const override;
  int width() const override;
  int height() const override;

  rtc::scoped_refptr<webrtc::I420BufferInterface> ToI420() override;

 protected:
  ~WebRtcVideoFrameAdapter() override;

  scoped_refptr<media::VideoFrame> frame_;
};

}  // namespace content

#endif  // CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_VIDEO_FRAME_ADAPTER_H_