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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 #import "RTCMediaStreamTrack.h"
29 
30 @protocol RTCVideoRenderer;
31 @class RTCPeerConnectionFactory;
32 @class RTCVideoSource;
33 
34 // RTCVideoTrack is an ObjectiveC wrapper for VideoTrackInterface.
35 @interface RTCVideoTrack : RTCMediaStreamTrack
36 
37 @property(nonatomic, readonly) RTCVideoSource* source;
38 
39 - (instancetype)initWithFactory:(RTCPeerConnectionFactory*)factory
40                          source:(RTCVideoSource*)source
41                         trackId:(NSString*)trackId;
42 
43 // Register a renderer that will render all frames received on this track.
44 - (void)addRenderer:(id<RTCVideoRenderer>)renderer;
45 
46 // Deregister a renderer.
47 - (void)removeRenderer:(id<RTCVideoRenderer>)renderer;
48 
49 #ifndef DOXYGEN_SHOULD_SKIP_THIS
50 // Disallow init and don't add to documentation
51 - (id)init __attribute__(
52     (unavailable("init is not a supported initializer for this class.")));
53 #endif /* DOXYGEN_SHOULD_SKIP_THIS */
54 
55 @end
56