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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#if !defined(__has_feature) || !__has_feature(objc_arc)
29#error "This file requires ARC support."
30#endif
31
32#import "RTCVideoTrack+internal.h"
33
34#import "RTCMediaStreamTrack+internal.h"
35#import "RTCVideoRenderer+internal.h"
36
37@implementation RTCVideoTrack {
38  NSMutableArray *_rendererArray;
39}
40
41- (id)initWithMediaTrack:(
42    talk_base::scoped_refptr<webrtc::MediaStreamTrackInterface>)mediaTrack {
43  if (self = [super initWithMediaTrack:mediaTrack]) {
44    _rendererArray = [NSMutableArray array];
45  }
46  return self;
47}
48
49- (void)addRenderer:(RTCVideoRenderer *)renderer {
50  NSAssert1(![self.renderers containsObject:renderer],
51            @"renderers already contains object [%@]",
52            [renderer description]);
53  [_rendererArray addObject:renderer];
54  self.videoTrack->AddRenderer(renderer.videoRenderer);
55}
56
57- (void)removeRenderer:(RTCVideoRenderer *)renderer {
58  NSUInteger index = [self.renderers indexOfObjectIdenticalTo:renderer];
59  if (index != NSNotFound) {
60    [_rendererArray removeObjectAtIndex:index];
61    self.videoTrack->RemoveRenderer(renderer.videoRenderer);
62  }
63}
64
65- (NSArray *)renderers {
66  return [_rendererArray copy];
67}
68
69@end
70
71@implementation RTCVideoTrack (Internal)
72
73- (talk_base::scoped_refptr<webrtc::VideoTrackInterface>)videoTrack {
74  return static_cast<webrtc::VideoTrackInterface *>(self.mediaTrack.get());
75}
76
77@end
78