Пример стримера для iOS
Данный стример может использоваться для публикации WebRTC-видеопотока с Web Call Server.
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Слева отображается видео с камеры, справа воспроизводится опубликованный поток.
Работа с кодом примера
Для разбора кода возьмем версию примера Streamer, которая доступена для скачивания в сборке 2.5.2.
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- (FPWCSApi2Stream *)publishStream {
FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
options.name = streamName;
options.display = _videoView.local;
if ( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ) {
options.constraints = [[FPWCSApi2MediaConstraints alloc] initWithAudio:YES videoWidth:640 videoHeight:480 videoFps:15];
}
NSError *error;
publishStream = [session createStream:options error:&error];
if (!publishStream) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to publish"
message:error.localizedDescription
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* okButton = [UIAlertAction
actionWithTitle:@"Ok"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
[self onUnpublished];
}];
[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
return nil;
}
[publishStream on:kFPWCSStreamStatusPublishing callback:^(FPWCSApi2Stream *rStream){
[self changeStreamStatus:rStream];
[self onPublishing:rStream];
}];
[publishStream on:kFPWCSStreamStatusUnpublished callback:^(FPWCSApi2Stream *rStream){
[self changeStreamStatus:rStream];
[self onUnpublished];
}];
[publishStream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
[self changeStreamStatus:rStream];
[self onUnpublished];
}];
...
if(![publishStream publish:&error]) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to publish"
message:error.localizedDescription
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* okButton = [UIAlertAction
actionWithTitle:@"Ok"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
[self onUnpublished];
}];
[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
}
return publishStream;
} |
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- (FPWCSApi2Stream *)playStream {
FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
options.name = streamName;
options.display = _videoView.remote;
NSError *error;
playStream = [session createStream:options error:nil];
if (!playStream) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to play"
message:error.localizedDescription
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* okButton = [UIAlertAction
actionWithTitle:@"Ok"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
[self onStopped];
}];
[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
return nil;
}
[playStream on:kFPWCSStreamStatusPlaying callback:^(FPWCSApi2Stream *rStream){
[self changeStreamStatus:rStream];
[self onPlaying:rStream];
}];
[playStream on:kFPWCSStreamStatusNotEnoughtBandwidth callback:^(FPWCSApi2Stream *rStream){
NSLog(@"Not enough bandwidth stream %@, consider using lower video resolution or bitrate. Bandwidth %ld bitrate %ld", [rStream getName], [rStream getNetworkBandwidth] / 1000, [rStream getRemoteBitrate] / 1000);
[self changeStreamStatus:rStream];
}];
[playStream on:kFPWCSStreamStatusStopped callback:^(FPWCSApi2Stream *rStream){
[self changeStreamStatus:rStream];
[self onStopped];
}];
[playStream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
[self changeStreamStatus:rStream];
[self onStopped];
}];...
if(![playStream play:&error]) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to play"
message:error.localizedDescription
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* okButton = [UIAlertAction
actionWithTitle:@"Ok"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
}];
[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
}
return playStream;
} |
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