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1 /* | |
2 * Copyright (c) 2012 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 // This file contains the class CaptureRenderAdapter. The class connects a | |
12 // VideoCapturer to any number of VideoRenders such that the former feeds the | |
13 // latter. | |
14 // CaptureRenderAdapter is Thread-unsafe. This means that none of its APIs may | |
15 // be called concurrently. | |
16 | |
17 #ifndef WEBRTC_MEDIA_BASE_CAPTURERENDERADAPTER_H_ | |
18 #define WEBRTC_MEDIA_BASE_CAPTURERENDERADAPTER_H_ | |
19 | |
20 #include <vector> | |
21 | |
22 #include "webrtc/base/criticalsection.h" | |
23 #include "webrtc/base/sigslot.h" | |
24 #include "webrtc/media/base/videocapturer.h" | |
25 #include "webrtc/media/base/videosinkinterface.h" | |
26 | |
27 namespace cricket { | |
28 | |
29 class VideoCapturer; | |
30 class VideoProcessor; | |
31 | |
32 class CaptureRenderAdapter : public sigslot::has_slots<> { | |
33 public: | |
34 static CaptureRenderAdapter* Create(VideoCapturer* video_capturer); | |
35 ~CaptureRenderAdapter(); | |
36 | |
37 void AddSink(rtc::VideoSinkInterface<VideoFrame>* sink); | |
38 void RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink); | |
39 | |
40 VideoCapturer* video_capturer() { return video_capturer_; } | |
41 private: | |
42 | |
43 explicit CaptureRenderAdapter(VideoCapturer* video_capturer); | |
44 void Init(); | |
45 | |
46 // Callback for frames received from the capturer. | |
47 void OnVideoFrame(VideoCapturer* capturer, const VideoFrame* video_frame); | |
48 | |
49 // Just pointers since ownership is not handed over to this class. | |
50 std::vector<rtc::VideoSinkInterface<VideoFrame>*> sinks_; | |
51 VideoCapturer* video_capturer_; | |
52 // Critical section synchronizing the capture thread. | |
53 rtc::CriticalSection capture_crit_; | |
54 }; | |
55 | |
56 } // namespace cricket | |
57 | |
58 #endif // WEBRTC_MEDIA_BASE_CAPTURERENDERADAPTER_H_ | |
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