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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" |
20 #include "webrtc/media/base/videosinkinterface.h" | 21 #include "webrtc/media/base/videosinkinterface.h" |
21 #include "webrtc/media/base/videosourcebase.h" | 22 #include "webrtc/media/base/videosourcebase.h" |
22 #include "webrtc/video_frame.h" | 23 #include "webrtc/media/engine/webrtcvideoframe.h" |
23 | 24 |
24 namespace rtc { | 25 namespace rtc { |
25 | 26 |
26 // VideoBroadcaster broadcast video frames to sinks and combines | 27 // VideoBroadcaster broadcast video frames to sinks and combines |
27 // VideoSinkWants from its sinks. It does that by implementing | 28 // VideoSinkWants from its sinks. It does that by implementing |
28 // rtc::VideoSourceInterface and rtc::VideoSinkInterface. | 29 // rtc::VideoSourceInterface and rtc::VideoSinkInterface. |
29 // Sinks must be added and removed on one and only one thread. | 30 // Sinks must be added and removed on one and only one thread. |
30 // Video frames can be broadcasted on any thread. I.e VideoBroadcaster::OnFrame | 31 // Video frames can be broadcasted on any thread. I.e VideoBroadcaster::OnFrame |
31 // can be called on any thread. | 32 // can be called on any thread. |
32 class VideoBroadcaster : public VideoSourceBase, | 33 class VideoBroadcaster : public VideoSourceBase, |
33 public VideoSinkInterface<webrtc::VideoFrame> { | 34 public VideoSinkInterface<cricket::VideoFrame> { |
34 public: | 35 public: |
35 VideoBroadcaster(); | 36 VideoBroadcaster(); |
36 void AddOrUpdateSink(VideoSinkInterface<webrtc::VideoFrame>* sink, | 37 void AddOrUpdateSink(VideoSinkInterface<cricket::VideoFrame>* sink, |
37 const VideoSinkWants& wants) override; | 38 const VideoSinkWants& wants) override; |
38 void RemoveSink(VideoSinkInterface<webrtc::VideoFrame>* sink) override; | 39 void RemoveSink(VideoSinkInterface<cricket::VideoFrame>* sink) override; |
39 | 40 |
40 // Returns true if the next frame will be delivered to at least one sink. | 41 // Returns true if the next frame will be delivered to at least one sink. |
41 bool frame_wanted() const; | 42 bool frame_wanted() const; |
42 | 43 |
43 // Returns VideoSinkWants a source is requested to fulfill. They are | 44 // Returns VideoSinkWants a source is requested to fulfill. They are |
44 // aggregated by all VideoSinkWants from all sinks. | 45 // aggregated by all VideoSinkWants from all sinks. |
45 VideoSinkWants wants() const; | 46 VideoSinkWants wants() const; |
46 | 47 |
47 // This method ensures that if a sink sets rotation_applied == true, | 48 // This method ensures that if a sink sets rotation_applied == true, |
48 // it will never receive a frame with pending rotation. Our caller | 49 // it will never receive a frame with pending rotation. Our caller |
49 // may pass in frames without precise synchronization with changes | 50 // may pass in frames without precise synchronization with changes |
50 // to the VideoSinkWants. | 51 // to the VideoSinkWants. |
51 void OnFrame(const webrtc::VideoFrame& frame) override; | 52 void OnFrame(const cricket::VideoFrame& frame) override; |
52 | 53 |
53 protected: | 54 protected: |
54 void UpdateWants() EXCLUSIVE_LOCKS_REQUIRED(sinks_and_wants_lock_); | 55 void UpdateWants() EXCLUSIVE_LOCKS_REQUIRED(sinks_and_wants_lock_); |
55 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& GetBlackFrameBuffer( | 56 const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& GetBlackFrameBuffer( |
56 int width, int height) | 57 int width, int height) |
57 EXCLUSIVE_LOCKS_REQUIRED(sinks_and_wants_lock_); | 58 EXCLUSIVE_LOCKS_REQUIRED(sinks_and_wants_lock_); |
58 | 59 |
59 ThreadChecker thread_checker_; | 60 ThreadChecker thread_checker_; |
60 rtc::CriticalSection sinks_and_wants_lock_; | 61 rtc::CriticalSection sinks_and_wants_lock_; |
61 | 62 |
62 VideoSinkWants current_wants_ GUARDED_BY(sinks_and_wants_lock_); | 63 VideoSinkWants current_wants_ GUARDED_BY(sinks_and_wants_lock_); |
63 rtc::scoped_refptr<webrtc::VideoFrameBuffer> black_frame_buffer_; | 64 rtc::scoped_refptr<webrtc::VideoFrameBuffer> black_frame_buffer_; |
64 }; | 65 }; |
65 | 66 |
66 } // namespace rtc | 67 } // namespace rtc |
67 | 68 |
68 #endif // WEBRTC_MEDIA_BASE_VIDEOBROADCASTER_H_ | 69 #endif // WEBRTC_MEDIA_BASE_VIDEOBROADCASTER_H_ |
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