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1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_MEDIA_BASE_VIDEOBROADCASTER_H_ | 11 #ifndef WEBRTC_MEDIA_BASE_VIDEOBROADCASTER_H_ |
12 #define WEBRTC_MEDIA_BASE_VIDEOBROADCASTER_H_ | 12 #define WEBRTC_MEDIA_BASE_VIDEOBROADCASTER_H_ |
13 | 13 |
14 #include <memory> | 14 #include <memory> |
15 #include <utility> | 15 #include <utility> |
16 #include <vector> | 16 #include <vector> |
17 | 17 |
18 #include "webrtc/base/criticalsection.h" | 18 #include "webrtc/base/criticalsection.h" |
19 #include "webrtc/base/thread_checker.h" | 19 #include "webrtc/base/thread_checker.h" |
20 #include "webrtc/media/base/videoframe.h" | |
21 #include "webrtc/media/base/videosinkinterface.h" | 20 #include "webrtc/media/base/videosinkinterface.h" |
22 #include "webrtc/media/base/videosourcebase.h" | 21 #include "webrtc/media/base/videosourcebase.h" |
23 #include "webrtc/media/engine/webrtcvideoframe.h" | 22 #include "webrtc/video_frame.h" |
24 | 23 |
25 namespace rtc { | 24 namespace rtc { |
26 | 25 |
27 // VideoBroadcaster broadcast video frames to sinks and combines | 26 // VideoBroadcaster broadcast video frames to sinks and combines |
28 // VideoSinkWants from its sinks. It does that by implementing | 27 // VideoSinkWants from its sinks. It does that by implementing |
29 // rtc::VideoSourceInterface and rtc::VideoSinkInterface. | 28 // rtc::VideoSourceInterface and rtc::VideoSinkInterface. |
30 // Sinks must be added and removed on one and only one thread. | 29 // Sinks must be added and removed on one and only one thread. |
31 // Video frames can be broadcasted on any thread. I.e VideoBroadcaster::OnFrame | 30 // Video frames can be broadcasted on any thread. I.e VideoBroadcaster::OnFrame |
32 // can be called on any thread. | 31 // can be called on any thread. |
33 class VideoBroadcaster : public VideoSourceBase, | 32 class VideoBroadcaster : public VideoSourceBase, |
34 public VideoSinkInterface<cricket::VideoFrame> { | 33 public VideoSinkInterface<webrtc::VideoFrame> { |
35 public: | 34 public: |
36 VideoBroadcaster(); | 35 VideoBroadcaster(); |
37 void AddOrUpdateSink(VideoSinkInterface<cricket::VideoFrame>* sink, | 36 void AddOrUpdateSink(VideoSinkInterface<webrtc::VideoFrame>* sink, |
38 const VideoSinkWants& wants) override; | 37 const VideoSinkWants& wants) override; |
39 void RemoveSink(VideoSinkInterface<cricket::VideoFrame>* sink) override; | 38 void RemoveSink(VideoSinkInterface<webrtc::VideoFrame>* sink) override; |
40 | 39 |
41 // Returns true if the next frame will be delivered to at least one sink. | 40 // Returns true if the next frame will be delivered to at least one sink. |
42 bool frame_wanted() const; | 41 bool frame_wanted() const; |
43 | 42 |
44 // Returns VideoSinkWants a source is requested to fulfill. They are | 43 // Returns VideoSinkWants a source is requested to fulfill. They are |
45 // aggregated by all VideoSinkWants from all sinks. | 44 // aggregated by all VideoSinkWants from all sinks. |
46 VideoSinkWants wants() const; | 45 VideoSinkWants wants() const; |
47 | 46 |
48 // This method ensures that if a sink sets rotation_applied == true, | 47 // This method ensures that if a sink sets rotation_applied == true, |
49 // it will never receive a frame with pending rotation. Our caller | 48 // it will never receive a frame with pending rotation. Our caller |
50 // may pass in frames without precise synchronization with changes | 49 // may pass in frames without precise synchronization with changes |
51 // to the VideoSinkWants. | 50 // to the VideoSinkWants. |
52 void OnFrame(const cricket::VideoFrame& frame) override; | 51 void OnFrame(const webrtc::VideoFrame& frame) override; |
53 | 52 |
54 protected: | 53 protected: |
55 void UpdateWants() EXCLUSIVE_LOCKS_REQUIRED(sinks_and_wants_lock_); | 54 void UpdateWants() EXCLUSIVE_LOCKS_REQUIRED(sinks_and_wants_lock_); |
56 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& GetBlackFrameBuffer( | 55 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& GetBlackFrameBuffer( |
57 int width, int height) | 56 int width, int height) |
58 EXCLUSIVE_LOCKS_REQUIRED(sinks_and_wants_lock_); | 57 EXCLUSIVE_LOCKS_REQUIRED(sinks_and_wants_lock_); |
59 | 58 |
60 ThreadChecker thread_checker_; | 59 ThreadChecker thread_checker_; |
61 rtc::CriticalSection sinks_and_wants_lock_; | 60 rtc::CriticalSection sinks_and_wants_lock_; |
62 | 61 |
63 VideoSinkWants current_wants_ GUARDED_BY(sinks_and_wants_lock_); | 62 VideoSinkWants current_wants_ GUARDED_BY(sinks_and_wants_lock_); |
64 rtc::scoped_refptr<webrtc::VideoFrameBuffer> black_frame_buffer_; | 63 rtc::scoped_refptr<webrtc::VideoFrameBuffer> black_frame_buffer_; |
65 }; | 64 }; |
66 | 65 |
67 } // namespace rtc | 66 } // namespace rtc |
68 | 67 |
69 #endif // WEBRTC_MEDIA_BASE_VIDEOBROADCASTER_H_ | 68 #endif // WEBRTC_MEDIA_BASE_VIDEOBROADCASTER_H_ |
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