1/*
2 * libjingle
3 * Copyright 2013 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_APP_WEBRTC_REMOTEVIDEOCAPTURER_H_
29#define TALK_APP_WEBRTC_REMOTEVIDEOCAPTURER_H_
30
31#include <vector>
32
33#include "talk/app/webrtc/mediastreaminterface.h"
34#include "talk/media/base/videocapturer.h"
35#include "talk/media/base/videorenderer.h"
36
37namespace webrtc {
38
39// RemoteVideoCapturer implements a simple cricket::VideoCapturer which
40// gets decoded remote video frames from media channel.
41// It's used as the remote video source's VideoCapturer so that the remote video
42// can be used as a cricket::VideoCapturer and in that way a remote video stream
43// can implement the MediaStreamSourceInterface.
44class RemoteVideoCapturer : public cricket::VideoCapturer {
45 public:
46  RemoteVideoCapturer();
47  virtual ~RemoteVideoCapturer();
48
49  // cricket::VideoCapturer implementation.
50  cricket::CaptureState Start(
51      const cricket::VideoFormat& capture_format) override;
52  void Stop() override;
53  bool IsRunning() override;
54  bool GetPreferredFourccs(std::vector<uint32_t>* fourccs) override;
55  bool GetBestCaptureFormat(const cricket::VideoFormat& desired,
56                            cricket::VideoFormat* best_format) override;
57  bool IsScreencast() const override;
58
59 private:
60  RTC_DISALLOW_COPY_AND_ASSIGN(RemoteVideoCapturer);
61};
62
63}  // namespace webrtc
64
65#endif  // TALK_APP_WEBRTC_REMOTEVIDEOCAPTURER_H_
66