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source: webrtc/talk/app/webrtc/objc/RTCMediaStream.mm @ 0:4bda6873e34c

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Last change on this file since 0:4bda6873e34c was 0:4bda6873e34c, checked in by Michael Prittie <mprittie@…>, 6 years ago

Scrubbed password for publication.

File size: 4.7 KB
Line 
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 "RTCMediaStream+internal.h"
33
34#import "RTCAudioTrack+internal.h"
35#import "RTCMediaStreamTrack+internal.h"
36#import "RTCVideoTrack+internal.h"
37
38#include "talk/app/webrtc/mediastreaminterface.h"
39
40@implementation RTCMediaStream {
41  NSMutableArray *_audioTracks;
42  NSMutableArray *_videoTracks;
43  talk_base::scoped_refptr<webrtc::MediaStreamInterface> _mediaStream;
44}
45
46- (NSString *)description {
47  return [NSString stringWithFormat:@"[%@:A=%lu:V=%lu]",
48          [self label],
49          (unsigned long)[self.audioTracks count],
50          (unsigned long)[self.videoTracks count]];
51}
52
53- (NSArray *)audioTracks {
54  return [_audioTracks copy];
55}
56
57- (NSArray *)videoTracks {
58  return [_videoTracks copy];
59}
60
61- (NSString *)label {
62  return @(self.mediaStream->label().c_str());
63}
64
65- (BOOL)addAudioTrack:(RTCAudioTrack *)track {
66  if (self.mediaStream->AddTrack(track.audioTrack)) {
67    [_audioTracks addObject:track];
68    return YES;
69  }
70  return NO;
71}
72
73- (BOOL)addVideoTrack:(RTCVideoTrack *)track {
74  if (self.mediaStream->AddTrack(track.videoTrack)) {
75    [_videoTracks addObject:track];
76    return YES;
77  }
78  return NO;
79}
80
81- (BOOL)removeAudioTrack:(RTCAudioTrack *)track {
82  NSUInteger index = [_audioTracks indexOfObjectIdenticalTo:track];
83  NSAssert(index != NSNotFound,
84           @"|removeAudioTrack| called on unexpected RTCAudioTrack");
85  if (index != NSNotFound && self.mediaStream->RemoveTrack(track.audioTrack)) {
86    [_audioTracks removeObjectAtIndex:index];
87    return YES;
88  }
89  return NO;
90}
91
92- (BOOL)removeVideoTrack:(RTCVideoTrack *)track {
93  NSUInteger index = [_videoTracks indexOfObjectIdenticalTo:track];
94  NSAssert(index != NSNotFound,
95           @"|removeAudioTrack| called on unexpected RTCVideoTrack");
96  if (index != NSNotFound && self.mediaStream->RemoveTrack(track.videoTrack)) {
97    [_videoTracks removeObjectAtIndex:index];
98    return YES;
99  }
100  return NO;
101}
102
103@end
104
105@implementation RTCMediaStream (Internal)
106
107- (id)initWithMediaStream:
108        (talk_base::scoped_refptr<webrtc::MediaStreamInterface>)mediaStream {
109  if (!mediaStream) {
110    NSAssert(NO, @"nil arguments not allowed");
111    self = nil;
112    return nil;
113  }
114  if ((self = [super init])) {
115    webrtc::AudioTrackVector audio_tracks = mediaStream->GetAudioTracks();
116    webrtc::VideoTrackVector video_tracks = mediaStream->GetVideoTracks();
117
118    _audioTracks = [NSMutableArray arrayWithCapacity:audio_tracks.size()];
119    _videoTracks = [NSMutableArray arrayWithCapacity:video_tracks.size()];
120    _mediaStream = mediaStream;
121
122    for (size_t i = 0; i < audio_tracks.size(); ++i) {
123      talk_base::scoped_refptr<webrtc::AudioTrackInterface> track =
124          audio_tracks[i];
125      RTCAudioTrack *audioTrack =
126          [[RTCAudioTrack alloc] initWithMediaTrack:track];
127      [_audioTracks addObject:audioTrack];
128    }
129      // TODO(hughv): Add video.
130//    for (size_t i = 0; i < video_tracks.size(); ++i) {
131//      talk_base::scoped_refptr<webrtc::VideoTrackInterface> track =
132//          video_tracks[i];
133//      RTCVideoTrack *videoTrack =
134//          [[RTCVideoTrack alloc] initWithMediaTrack:track];
135//      [_videoTracks addObject:videoTrack];
136//    }
137  }
138  return self;
139}
140
141- (talk_base::scoped_refptr<webrtc::MediaStreamInterface>)mediaStream {
142  return _mediaStream;
143}
144
145@end
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