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1. Импорт API. код

Code Block

language	bash
theme	RDark

#import <FPWCSApi2/FPWCSApi2.h>

...

FPWCSApi2 getMediaDevices код

Code Block

language	bash
theme	RDark

localDevices = [FPWCSApi2 getMediaDevices];

...

FPWCSApi2MediaDeviceList.audio[0] код

Code Block

language	bash
theme	RDark

_micSelector = [[WCSPickerInputView alloc] initWithLabelText:@"Mic" pickerDelegate:self];
//set default mic
if (localDevices.audio.count > 0) {
    _micSelector.input.text = ((FPWCSApi2MediaDevice *)(localDevices.audio[0])).label;
}

...

FPWCSApi2MediaDeviceList.video[0] код

Code Block

language	bash
theme	RDark

_camSelector = [[WCSPickerInputView alloc] initWithLabelText:@"Cam" pickerDelegate:self];

//set default cam
if (localDevices.video.count > 0) {
    _camSelector.input.text = ((FPWCSApi2MediaDevice *)(localDevices.video[0])).label;
}

...

FPWCSApi2MediaConstraints.audio, FPWCSApi2MediaConstraints.video код

Code Block

language	bash
theme	RDark

- (FPWCSApi2MediaConstraints *)toMediaConstraints {
    FPWCSApi2MediaConstraints *ret = [[FPWCSApi2MediaConstraints alloc] init];
    if ([_sendAudio.control isOn])  {
        FPWCSApi2AudioConstraints *audio = [[FPWCSApi2AudioConstraints alloc] init];
        audio.useFEC = [_useFEC.control isOn];
        audio.useStereo = [_useStereo.control isOn];
        audio.bitrate = [_audioBitrate.input.text integerValue];
ret.audio = audio;
}
       ret.audio = audio;
    }
    if ([_sendVideo.control isOn]) {
        FPWCSApi2VideoConstraints *video = [[FPWCSApi2VideoConstraints alloc] init];
        for (FPWCSApi2MediaDevice *device in localDevices.video) {
            if ([device.label isEqualToString:_camSelector.input.text]) {
                video.deviceID = device.deviceID;
}
}
NSArray *res = [            }
        }
        NSArray *res = [_videoResolutionSelector.input.text componentsSeparatedByString:@"x"];
        video.minWidth = video.maxWidth = [res[0] integerValue];
        video.minHeight = video.maxHeight = [res[1] integerValue];
        video.minFrameRate = video.maxFrameRate = [_fpsSelector.input.text integerValue];
        video.bitrate = [_videoBitrate.input.text integerValue];
ret.video  = video;
}
      ret.video = video;
    }
    return ret;
}

5. Определение параметров для проигрываемого потока.

FPWCSApi2MediaConstraints.audio, FPWCSApi2MediaConstraints.video код

Code Block

language	bash
theme	RDark

- (FPWCSApi2MediaConstraints *)toMediaConstraints {
    FPWCSApi2MediaConstraints *ret = [[FPWCSApi2MediaConstraints alloc] init];
    ret.audio = [[FPWCSApi2AudioConstraints alloc] init];
    if ([_playVideo.control isOn]) {
        FPWCSApi2VideoConstraints *video = [[FPWCSApi2VideoConstraints alloc] init];
        video.minWidth = video.maxWidth = [_videoResolution.width.text integerValue];
        video.minHeight = video.maxHeight = [_videoResolution.height.text integerValue];
        video.bitrate = [_bitrate.input.text integerValue];
video.quality  = [      video.quality = [_quality.input.text integerValue];
        ret.video = video;
    }
    return ret;
}

6. Локальное тестирование микрофона и камеры

FPWCSApi2 getMediaAccess, AVAudioRecorder record, AVAudioRecorder stop код

Code Block

language	bash
theme	RDark

- (void)testButton:(UIButton *)button {
    if ([button.titleLabel.text isEqualToString:@"Test"]) {
        NSError *error;
        [FPWCSApi2 getMediaAccess:[_localControl toMediaConstraints] display:_videoView.local error:&error];
        [_testButton setTitle:@"Release" forState:UIControlStateNormal];

[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryRecord error:        
        [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryRecord error:&error];
        
        NSURL *url = [NSURL fileURLWithPath:@"/dev/null"];
        
        NSDictionary *settings = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber  numberWithFloat: 44100.0], AVSampleRateKey,
[NSNumber numberWithInt: kAudioFormatAppleLossless], AVFormatIDKey,
[NSNumber numberWithInt: 1], AVNumberOfChannelsKey,
[NSNumber numberWithInt: AVAudioQualityMax], AVEncoderAudioQualityKey,
nil];

_recorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:&error];
[_recorder prepareToRecord];
_recorder.meteringEnabled = YES;
[_recorder record];
_levelTimer = [NSTimer scheduledTimerWithTimeInterval: 0.3 target: self selector: @selector(levelTimerCallback:) userInfo: nil repeats: YES];
} else {
[FPWCSApi2 releaseLocalMedia:_videoView.local];
[_testButton setTitle:@"Test" forState:UIControlStateNormal];

[_levelTimer invalidate];
[_recorder stop];

}
}

7. Создание сессии и подключение к серверу.

FPWCSApi2 createSession, FPWCSApi2Session connect код

В параметрах сессии указываются:

URL WCS-сервера
имя серверного приложения defaultApp

Code Block

language	bash

- (void)start {
if (!_session || [_session getStatus] != kFPWCSSessionStatusEstablished || ![[_session getServerUrl] isEqualToString:_urlInput.text]) {
if (_session && ![[_session getServerUrl] isEqualToString:_urlInput.text]) {
[_session on:kFPWCSSessionStatusDisconnected callback:^(FPWCSApi2Session *session){}];
[_session on:kFPWCSSessionStatusFailed callback:^(FPWCSApi2Session *session){}];
[_session disconnect];
}
FPWCSApi2SessionOptions *options = [[FPWCSApi2SessionOptions alloc] init];
options.urlServer = _urlInput.text;
options.appKey = @"defaultApp";
NSError *error;
_session = [FPWCSApi2 createSession:options error:&error];
if (!_session) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to connect"
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;
}

[_session on:kFPWCSSessionStatusEstablished callback:^(FPWCSApi2Session *session){
[self changeConnectionStatus:[session getStatus]];
[self startStreaming];
}];

[_session on:kFPWCSSessionStatusDisconnected callback:^(FPWCSApi2Session *session){
[self changeConnectionStatus:[session getStatus]];
[self onStopped];
}];

[_session on:kFPWCSSessionStatusFailed callback:^(FPWCSApi2Session *session){
[self changeConnectionStatus:[session getStatus]];
[self onStopped];
}];
[_session connect];
} else {
[self startStreaming];
}
}

8. Публикация потока.

FPWCSApi2Session createStream, FPWCSApi2Stream publish код

Методу createStream передаются параметры:

имя публикуемого потока
вид для локального отображения
параметры аудио и видео

Code Block

language	bash

- (void)startStreaming {
FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
options.name = [self getStreamName];
options.display = _videoView.local;
options.constraints = [_localControl toMediaConstraints];
NSError *error;
_localStream = [_session createStream:options error:&error];
if (!_localStream) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to publish"
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;
}
//initial mute
if (_localControl.muteAudio.control.isOn) {
[_localStream muteAudio];
}
if (_localControl.muteVideo.control.isOn) {
[_localStream muteVideo];
}

if (_lockCameraOrientation.control.isOn) {
[_localStream lockCameraOrientation];
}
[_localStream on:kFPWCSStreamStatusPublishing callback:^(FPWCSApi2Stream *stream){
[self changeStreamStatus:stream];
[self startPlaying];
}];

[_localStream on:kFPWCSStreamStatusUnpublished callback:^(FPWCSApi2Stream *stream){
[self changeStreamStatus:stream];
[self onStopped];
}];

[_localStream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *stream){
[self changeStreamStatus:stream];
[self onStopped];
}];
if(![_localStream 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 onStopped];
}];

[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
}
}

9. Воспроизведение видеопотока после публикации

FPWCSApi2Session createStream, FPWCSApi2Stream play код

Методу createStream передаются параметры:

имя воспроизводимого потока
вид для отображения потока
параметры видео и аудио

Code Block

language	bash

- (void)startPlaying {
FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
options.name = [_localStream getName];
options.display = _videoView.remote;
options.constraints = [_remoteControl toMediaConstraints];
NSError *error;
_remoteStream = [_session createStream:options error:&error];
if (!_remoteStream) {
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;
}
[_remoteStream on:kFPWCSStreamStatusPlaying callback:^(FPWCSApi2Stream *stream){
[self changeStreamStatus:stream];
[self onStarted];
_useLoudSpeaker.control.userInteractionEnabled = YES;

}];

[_remoteStream 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];
}];

[_remoteStream on:kFPWCSStreamStatusStopped callback:^(FPWCSApi2Stream *rStream){
[self changeStreamStatus:rStream];
[_localStream stop:nil];
_useLoudSpeaker.control.userInteractionEnabled = NO;

}];
[_remoteStream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
[self changeStreamStatus:rStream];
if (_localStream && [_localStream getStatus] == kFPWCSStreamStatusPublishing) {
[_localStream stop:nil];
}
_useLoudSpeaker.control.userInteractionEnabled = NO;

}];
if(![_remoteStream play:&error]) {
UIAlertController * alert = [UIAlertController
alertControllerWithTitle:@"Failed to play"
message:error.localizedDescription
preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction* okButton = [UIAlertAction
actionWithTitle:@"Ok"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action) {
if (_localStream && [_localStream getStatus] == kFPWCSStreamStatusPublishing) {
[_localStream stop:nil];
}
}];

[alert addAction:okButton];
[self presentViewController:alert animated:YES completion:nil];
}

}

10. Включение/выключение аудио и видео.

FPWCSApi2Stream muteAudio, unmuteAudio, muteVideo, unmuteVideo код

Code Block

language	bash

- (void)controlValueChanged:(id)sender {
          [NSNumber numberWithFloat: 44100.0],                 AVSampleRateKey,
                                  [NSNumber numberWithInt: kAudioFormatAppleLossless], AVFormatIDKey,
                                  [NSNumber numberWithInt: 1],                         AVNumberOfChannelsKey,
                                  [NSNumber numberWithInt: AVAudioQualityMax],         AVEncoderAudioQualityKey,
                                  nil];
        
        _recorder = [[AVAudioRecorder alloc] initWithURL:url settings:settings error:&error];
        [_recorder prepareToRecord];
        _recorder.meteringEnabled = YES;
        [_recorder record];
        _levelTimer = [NSTimer scheduledTimerWithTimeInterval: 0.3 target: self selector: @selector(levelTimerCallback:) userInfo: nil repeats: YES];
    } else {
        [FPWCSApi2 releaseLocalMedia:_videoView.local];
        [_testButton setTitle:@"Test" forState:UIControlStateNormal];
        
        [_levelTimer invalidate];
        [_recorder stop];

    }
}

7. Создание сессии и подключение к серверу.

FPWCSApi2 createSession, FPWCSApi2Session connect код

В параметрах сессии указываются:

URL WCS-сервера
имя серверного приложения defaultApp

Code Block

language	bash
theme	RDark

- (void)start {
    if (!_session || [_session getStatus] != kFPWCSSessionStatusEstablished || ![[_session getServerUrl] isEqualToString:_urlInput.text]) {
        if (_session && ![[_session getServerUrl] isEqualToString:_urlInput.text]) {
            [_session on:kFPWCSSessionStatusDisconnected callback:^(FPWCSApi2Session *session){}];
            [_session on:kFPWCSSessionStatusFailed callback:^(FPWCSApi2Session *session){}];
            [_session disconnect];
        }
        FPWCSApi2SessionOptions *options = [[FPWCSApi2SessionOptions alloc] init];
        options.urlServer = _urlInput.text;
        options.appKey = @"defaultApp";
        NSError *error;
        _session = [FPWCSApi2 createSession:options error:&error];
        if (!_session) {
            UIAlertController * alert = [UIAlertController
                                         alertControllerWithTitle:@"Failed to connect"
                                         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;
        }
        
        [_session on:kFPWCSSessionStatusEstablished callback:^(FPWCSApi2Session *session){
            [self changeConnectionStatus:[session getStatus]];
            [self startStreaming];
        }];
        
        [_session on:kFPWCSSessionStatusDisconnected callback:^(FPWCSApi2Session *session){
            [self changeConnectionStatus:[session getStatus]];
            [self onStopped];
        }];
        
        [_session on:kFPWCSSessionStatusFailed callback:^(FPWCSApi2Session *session){
            [self changeConnectionStatus:[session getStatus]];
            [self onStopped];
        }];
        [_session connect];
    } else {
        [self startStreaming];
    }
}

8. Публикация потока.

FPWCSApi2Session createStream, FPWCSApi2Stream publish код

Методу createStream передаются параметры:

имя публикуемого потока
вид для локального отображения
параметры аудио и видео

Code Block

language	bash
theme	RDark

- (void)startStreaming {
    FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
    options.name = [self getStreamName];
    options.display = _videoView.local;
    options.constraints = [_localControl toMediaConstraints];
    NSError *error;
    _localStream = [_session createStream:options error:&error];
    if (!_localStream) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to publish"
                                     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;
    }
    //initial mute
    if (_localControl.muteAudio.control.isOn) {
        [_localStream muteAudio];
    }
    if (_localControl.muteVideo.control.isOn) {
        [_localStream muteVideo];
    }
    
    if (_lockCameraOrientation.control.isOn) {
        [_localStream lockCameraOrientation];
    }
    [_localStream on:kFPWCSStreamStatusPublishing callback:^(FPWCSApi2Stream *stream){
        [self changeStreamStatus:stream];
        [self startPlaying];
    }];
    
    [_localStream on:kFPWCSStreamStatusUnpublished callback:^(FPWCSApi2Stream *stream){
        [self changeStreamStatus:stream];
        [self onStopped];
    }];
    
    [_localStream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *stream){
        [self changeStreamStatus:stream];
        [self onStopped];
    }];
    if(![_localStream 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 onStopped];
                                   }];
        
        [alert addAction:okButton];
        [self presentViewController:alert animated:YES completion:nil];
    }
}

9. Воспроизведение видеопотока после публикации

FPWCSApi2Session createStream, FPWCSApi2Stream play код

Методу createStream передаются параметры:

имя воспроизводимого потока
вид для отображения потока
параметры видео и аудио

Code Block

language	bash
theme	RDark

- (void)startPlaying {
    FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
    options.name = [_localStream getName];
    options.display = _videoView.remote;
    options.constraints = [_remoteControl toMediaConstraints];
    NSError *error;
    _remoteStream = [_session createStream:options error:&error];
    if (!_remoteStream) {
        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;
    }
    [_remoteStream on:kFPWCSStreamStatusPlaying callback:^(FPWCSApi2Stream *stream){
        [self changeStreamStatus:stream];
        [self onStarted];
        _useLoudSpeaker.control.userInteractionEnabled = YES;
        
    }];
    
    [_remoteStream 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];
    }];
    
    [_remoteStream on:kFPWCSStreamStatusStopped callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        [_localStream stop:nil];
        _useLoudSpeaker.control.userInteractionEnabled = NO;

    }];
    [_remoteStream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        if (_localStream && [_localStream getStatus] == kFPWCSStreamStatusPublishing) {
            [_localStream stop:nil];
        }
        _useLoudSpeaker.control.userInteractionEnabled = NO;

    }];
    if(![_remoteStream play:&error]) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to play"
                                     message:error.localizedDescription
                                     preferredStyle:UIAlertControllerStyleAlert];
        
        UIAlertAction* okButton = [UIAlertAction
                                   actionWithTitle:@"Ok"
                                   style:UIAlertActionStyleDefault
                                   handler:^(UIAlertAction * action) {
                                       if (_localStream && [_localStream getStatus] == kFPWCSStreamStatusPublishing) {
                                           [_localStream stop:nil];
                                       }
                                   }];
        
        [alert addAction:okButton];
        [self presentViewController:alert animated:YES completion:nil];
    }

}

10. Включение/выключение аудио и видео.

FPWCSApi2Stream muteAudio, unmuteAudio, muteVideo, unmuteVideo код

Code Block

language	bash
theme	RDark

- (void)controlValueChanged:(id)sender {
    if (sender == _localControl.muteAudio.control) {
        if (_localStream) {
            if (_localControl.muteAudio.control.isOn) {
                [_localStream muteAudio];
            } else {
                [_localStream unmuteAudio];
            }
        }
    } else if (sender == _localControl.muteAudiomuteVideo.control) {
        if (_localStream) {
            if (_localControl.muteAudiomuteVideo.control.isOn) {
                [_localStream muteAudio];
 muteVideo];
            } else {
                [_localStream unmuteAudiounmuteVideo];
}
}
} else if (sender == _localControl.muteVideo.control) {
if (_localStream) {
if (_localControl.muteVideo.control.isOn) {
[_localStream muteVideo];
} else {
[_localStream unmuteVideo];
}
}
            }
        }
    }
}

11. Остановка воспроизведения потока.

FPWCSApi2Stream stop код

Code Block

language	bash
theme	RDark

- (void)startButton:(UIButton *)button {
    button.userInteractionEnabled = NO;
    button.alpha = 0.5;
    _urlInput.userInteractionEnabled = NO;
    if ([button.titleLabel.text isEqualToString:@"Stop"]) {
        if (_remoteStream) {
            NSError *error;
 *error;
            [_remoteStream stop:&error];
        } else {
            NSLog(@"No remote stream, failed to stop");
        }
    } else {
        //start
        [self start];
    }
}

12. Остановка публикации потока.

FPWCSApi2Stream stop код

Code Block

language	bash
theme	RDark

[_remoteStream on:kFPWCSStreamStatusStopped callback:^(FPWCSApi2Stream *rStream){
    [self changeStreamStatus:rStream];
    [_localStream stop:nil];
    _useLoudSpeaker.control.userInteractionEnabled = NO;

}];

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