3 * Copyright 2013, Google Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
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.
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.
28 #if !defined(__has_feature) || !__has_feature(objc_arc)
29 #error "This file requires ARC support."
32 #import "RTCEnumConverter.h"
33 #import "RTCMediaStreamTrack+Internal.h"
37 class RTCMediaStreamTrackObserver : public ObserverInterface {
39 RTCMediaStreamTrackObserver(RTCMediaStreamTrack* track) { _track = track; }
41 virtual void OnChanged() OVERRIDE {
42 [_track.delegate mediaStreamTrackDidChange:_track];
46 __weak RTCMediaStreamTrack* _track;
50 @implementation RTCMediaStreamTrack {
51 rtc::scoped_refptr<webrtc::MediaStreamTrackInterface> _mediaTrack;
52 rtc::scoped_ptr<webrtc::RTCMediaStreamTrackObserver> _observer;
57 - (BOOL)isEqual:(id)other {
58 // Equality is purely based on the label just like the C++ implementation.
61 if (![other isKindOfClass:[self class]] ||
62 ![self isKindOfClass:[other class]]) {
65 RTCMediaStreamTrack* otherMediaStream = (RTCMediaStreamTrack*)other;
66 return [self.label isEqual:otherMediaStream.label];
70 return [self.label hash];
74 return @(self.mediaTrack->kind().c_str());
78 return @(self.mediaTrack->id().c_str());
82 return self.mediaTrack->enabled();
85 - (BOOL)setEnabled:(BOOL)enabled {
86 return self.mediaTrack->set_enabled(enabled);
89 - (RTCTrackState)state {
90 return [RTCEnumConverter convertTrackStateToObjC:self.mediaTrack->state()];
93 - (BOOL)setState:(RTCTrackState)state {
94 return self.mediaTrack->set_state(
95 [RTCEnumConverter convertTrackStateToNative:state]);
100 @implementation RTCMediaStreamTrack (Internal)
102 - (id)initWithMediaTrack:
103 (rtc::scoped_refptr<webrtc::MediaStreamTrackInterface>)
106 NSAssert(NO, @"nil arguments not allowed");
110 if (self = [super init]) {
111 _mediaTrack = mediaTrack;
112 label = @(mediaTrack->id().c_str());
113 _observer.reset(new webrtc::RTCMediaStreamTrackObserver(self));
114 _mediaTrack->RegisterObserver(_observer.get());
120 _mediaTrack->UnregisterObserver(_observer.get());
123 - (rtc::scoped_refptr<webrtc::MediaStreamTrackInterface>)mediaTrack {