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 (rtc::scoped_refptr<webrtc::MediaStreamTrackInterface>) 43 mediaTrack { 44 if (self = [super initWithMediaTrack:mediaTrack]) { 45 _rendererArray = [NSMutableArray array]; 46 } 47 return self; 48 } 49 50 - (void)addRenderer:(RTCVideoRenderer*)renderer { 51 NSAssert1(![self.renderers containsObject:renderer], 52 @"renderers already contains object [%@]", 53 [renderer description]); 54 [_rendererArray addObject:renderer]; 55 self.videoTrack->AddRenderer(renderer.videoRenderer); 56 } 57 58 - (void)removeRenderer:(RTCVideoRenderer*)renderer { 59 NSUInteger index = [self.renderers indexOfObjectIdenticalTo:renderer]; 60 if (index != NSNotFound) { 61 [_rendererArray removeObjectAtIndex:index]; 62 self.videoTrack->RemoveRenderer(renderer.videoRenderer); 63 } 64 } 65 66 - (NSArray*)renderers { 67 return [_rendererArray copy]; 68 } 69 70 @end 71 72 @implementation RTCVideoTrack (Internal) 73 74 - (rtc::scoped_refptr<webrtc::VideoTrackInterface>)videoTrack { 75 return static_cast<webrtc::VideoTrackInterface*>(self.mediaTrack.get()); 76 } 77 78 @end 79