content/renderer/media/webrtc/webrtc_video_frame_adapter.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_VIDEO_FRAME_ADAPTER_H_
   6 #define CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_VIDEO_FRAME_ADAPTER_H_
   7
   8 #include "media/base/video_frame.h"
   9 #include "third_party/webrtc/common_video/interface/video_frame_buffer.h"
  10
  11 namespace content {
  12 // Thin adapter from media::VideoFrame to webrtc::VideoFrameBuffer. This
  13 // implementation is read-only and will return null if trying to get a
  14 // non-const pointer to the pixel data. This object will be accessed from
  15 // different threads, but that's safe since it's read-only.
  16 class WebRtcVideoFrameAdapter : public webrtc::VideoFrameBuffer {
  17  public:
  18   explicit WebRtcVideoFrameAdapter(
  19       const scoped_refptr<media::VideoFrame>& frame);
  20
  21  private:
  22   int width() const override;
  23   int height() const override;
  24
  25   const uint8_t* data(webrtc::PlaneType type) const override;
  26
  27   int stride(webrtc::PlaneType type) const override;
  28
  29   void* native_handle() const override;
  30
  31   rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override;
  32
  33   friend class rtc::RefCountedObject<WebRtcVideoFrameAdapter>;
  34
  35  protected:
  36   ~WebRtcVideoFrameAdapter() override;
  37
  38   scoped_refptr<media::VideoFrame> frame_;
  39 };
  40
  41 }  // namespace content
  42
  43 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_WEBRTC_VIDEO_FRAME_ADAPTER_H_