1 /*
2  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_VIDEO_RENDERER_H_
12 #define WEBRTC_VIDEO_RENDERER_H_
13 
14 namespace webrtc {
15 
16 class VideoFrame;
17 
18 class VideoRenderer {
19  public:
20   // This function should return as soon as possible and not block until it's
21   // time to render the frame.
22   // TODO(mflodman) Remove time_to_render_ms when VideoFrame contains NTP.
23   virtual void RenderFrame(const VideoFrame& video_frame,
24                            int time_to_render_ms) = 0;
25 
26   virtual bool IsTextureSupported() const = 0;
27 
28   // This function returns true if WebRTC should not delay frames for
29   // smoothness. In general, this case means the renderer can schedule frames to
30   // optimize smoothness.
SmoothsRenderedFrames()31   virtual bool SmoothsRenderedFrames() const { return false; }
32 
33  protected:
~VideoRenderer()34   virtual ~VideoRenderer() {}
35 };
36 }  // namespace webrtc
37 
38 #endif  // WEBRTC_VIDEO_RENDERER_H_
39