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Пример iOS-приложения с плеером и стримером

Данное приложение может использоваться для публикации WebRTC-видеопотока и воспроизведения любого из следующих типов потоков с Web Call Server:

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Слева отображается видео с камеры, справа воспроизводится другой поток.

Работа с кодом примера

Для разбора кода возьмем версию примера TwoWayStreaming, которая доступена доступна для скачивания в соответствующей сборке 2.5.2.

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1. Импорт API. код

Code Block

language	bashcpp
theme	RDark

#import <FPWCSApi2/FPWCSApi2.h>

...

URL WCS-сервера
имя серверного приложения defaultApp

Code Block

language	bashcpp
theme	RDark

- (FPWCSApi2Session *)connect {
    FPWCSApi2SessionOptions *options = [[FPWCSApi2SessionOptions alloc] init];
    options.urlServer = _connectUrl.text;
    options.appKey = @"defaultApp";
    NSError *error;
    FPWCSApi2Session *session = [FPWCSApi2 createSession:options error:&error];
    if (!session) {...
    [session connect];
   UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to connect"
                                     message:error.localizedDescription
                                     preferredStyle:UIAlertControllerStyleAlert];
        
        UIAlertAction* okButton = [UIAlertAction
                                   actionWithTitle:@"Ok"
                                   style:UIAlertActionStyleDefault
                                   handler:^(UIAlertAction * action) {
                                       [self onDisconnected];
                                   }];
        
        [alert addAction:okButton];
        [self presentViewController:alert animated:YES completion:nil];
        return nil;
    }
    
    [session on:kFPWCSSessionStatusEstablished callback:^(FPWCSApi2Session *rSession){
        [self changeConnectionStatus:[rSession getStatus]];
        [self onConnected:rSession];
    }];
    
    [session on:kFPWCSSessionStatusDisconnected callback:^(FPWCSApi2Session *rSession){
        [self changeConnectionStatus:[rSession getStatus]];
        [self onDisconnected];
    }];
    
    [session on:kFPWCSSessionStatusFailed callback:^(FPWCSApi2Session *rSession){
        [self changeConnectionStatus:[rSession getStatus]];
        [self onDisconnected];
    }];
    [session connect];
    return session;
}

3. Публикация видеопотока.

FPWCSApi2Session createStream, FPWCSApi2Stream publish код

Методу createStream передаются параметры:

имя публикуемого потока
вид для локального отображения
параметр record = true для записи потока при публикации
размеры и FPS публикуемого видео при публикации с iPad

Code Block

language	bash
theme	RDark

- (FPWCSApi2Stream *)publishStream {
    FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
    FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
    options.name = _localStreamName.text;
    options.display = _localDisplay;
    if ( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ) {
        options.constraints = [[FPWCSApi2MediaConstraints alloc] initWithAudio:YES videoWidth:640 videoHeight:480 videoFps:15];
    }
    NSError *error;
    FPWCSApi2Stream *stream = [session createStream:options error:&error];
    if (!stream) {
        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;
    }
    [stream on:kFPWCSStreamStatusPublishing callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        [self onPublishing:rStream];
    }];

    [stream on:kFPWCSStreamStatusUnpublished callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        [self onUnpublished];
    }];
    
    [stream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        [self onUnpublished];
    }];
    if(![stream 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 stream;
}

4. Переключение камеры во время публикации потока

FPWCSApi2Stream switchCamera код

Code Block

language	bash
theme	RDark

- (void)switchCameraButton:(UIButton *)button {
    if ([FPWCSApi2 getSessions].count) {
        FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
        NSArray *streams = [session getStreams];
        for (FPWCSApi2Stream *stream in streams ) {
            if ([stream isPublished]) {
                NSLog(@"Found published stream, switching camera");
                [stream switchCamera];
            }
        }
    } else {
        NSLog(@"No active sessions found");
    }
}

5. Воспроизведение видеопотока.

FPWCSApi2Session createStream, FPWCSApi2Stream play код

Методу createStream передаются параметры:

имя воспроизводимого потока
вид для отображения потока

Code Block

language	bash
theme	RDark

- (FPWCSApi2Stream *)playStream {
    FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
    FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
    options.name = _remoteStreamName.text;
    options.display = _remoteDisplay;
    NSError *error;
    FPWCSApi2Stream *stream = [session createStream:options error:nil];
    if (!stream) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to play"
                                     message:error.localizedDescription
                                     preferredStyle:UIAlertControllerStyleAlert];
        
        UIAlertAction* okButton = [UIAlertAction
return session;
}

3. Публикация видеопотока.

FPWCSApi2Session createStream, FPWCSApi2Stream publish код

Методу createStream передаются параметры:

имя публикуемого потока
вид для локального отображения
параметр record = true для записи потока при публикации
размеры и FPS публикуемого видео при публикации с iPad

Code Block

language	cpp
theme	RDark

- (FPWCSApi2Stream *)publishStream {
    FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
    FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
    options.name = _localStreamName.text;
    options.display = _localDisplay;
    if ( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ) {
        options.constraints = [[FPWCSApi2MediaConstraints alloc] initWithAudio:YES videoWidth:640 videoHeight:480 videoFps:15];
    }
    NSError *error;
    FPWCSApi2Stream *stream = [session createStream:options error:&error];
    ...
    if(![stream publish:&error]) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to  publish"
                   actionWithTitle:@"Ok"
                  message:error.localizedDescription
                  style:UIAlertActionStyleDefault
                   preferredStyle:UIAlertControllerStyleAlert];
        
        handler:^(UIAlertAction* *okButton action)= {[UIAlertAction
                                    actionWithTitle:@"Ok"
   [self onStopped];
                                 style:UIAlertActionStyleDefault
     }];
            
        [alert addAction:okButton];
          [self presentViewController:alert animated:YES completion:nil];
handler:^(UIAlertAction * action) {
          return  nil;
    }
    [stream on:kFPWCSStreamStatusPlaying callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        [self onPlaying:rStreamonUnpublished];
         }];
    
    [stream 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)[alert addAction:okButton];
        [self changeStreamStatus:rStreampresentViewController:alert animated:YES completion:nil];
    }];
    
return    [stream on:kFPWCSStreamStatusStopped callback:^(FPWCSApi2Stream *rStream)stream;
}

4. Переключение камеры во время публикации потока

FPWCSApi2Stream switchCamera код

Code Block

language	cpp
theme	RDark

- (void)switchCameraButton:(UIButton *)button {
    if    ([selfFPWCSApi2 changeStreamStatus:rStream];getSessions].count) {
        [self onStopped];
    }FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
    [stream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
 NSArray *streams = [session getStreams];
   [self changeStreamStatus:rStream];
    for (FPWCSApi2Stream *stream in streams [self onStopped];
) {
      }];
      if (![stream play:&errorisPublished]) {
          UIAlertController * alert = [UIAlertController      NSLog(@"Found published stream, switching camera");
                [stream switchCamera];
             }
       alertControllerWithTitle:@"Failed to play" }
    } else {
        NSLog(@"No active sessions found");
        }
}

5. Воспроизведение видеопотока.

FPWCSApi2Session createStream, FPWCSApi2Stream play код

Методу createStream передаются параметры:

имя воспроизводимого потока
вид для отображения потока

Code Block

language	cpp
theme	RDark

- (FPWCSApi2Stream *)playStream {
    FPWCSApi2Session *session =      message:error.localizedDescription[FPWCSApi2 getSessions][0];
    FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
    options.name = _remoteStreamName.text;
    options.display = _remoteDisplay;
    NSError  *error;
    FPWCSApi2Stream *stream = [session createStream:options  preferredStyleerror:UIAlertControllerStyleAlertnil];
    ...
    if(![stream play:&error]) {
        UIAlertActionUIAlertController * okButtonalert = [UIAlertActionUIAlertController
                                     actionWithTitlealertControllerWithTitle:@"OkFailed to play"
                                   style:UIAlertActionStyleDefault
             message:error.localizedDescription
                        handler:^(UIAlertAction * action) {
          preferredStyle:UIAlertControllerStyleAlert];
        
        UIAlertAction* okButton = [UIAlertAction
          
                         actionWithTitle:@"Ok"
          }];
        
        [alert addAction:okButton];
        [self presentViewController:alert animated:YES completion:nil];
style:UIAlertActionStyleDefault
     }
    return stream;
}

6. Остановка воспроизведения видеопотока.

FPWCSApi2Stream stop код

Code Block

language	bash
theme	RDark

- (void)playButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"STOP"]) {
        if ([FPWCSApi2 getSessions].counthandler:^(UIAlertAction * action) {
            FPWCSApi2Stream *stream;
            for (FPWCSApi2Stream *s in [[FPWCSApi2 getSessions][0] getStreams]) {
       
         if ([[s getName] isEqualToString:_remoteStreamName.text]) {
                    stream = s}];
        
        [alert addAction:okButton];
       break;
 [self presentViewController:alert animated:YES completion:nil];
    }
    return stream;
}

6. Остановка воспроизведения видеопотока.

FPWCSApi2Stream stop код

Code Block

language	cpp
theme	RDark

- (void)playButton:(UIButton *)button }{
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text  }
  isEqualToString:@"STOP"]) {
          if (!stream[FPWCSApi2 getSessions].count) {
                NSLog(@"Stop playing, nothing to stop");
FPWCSApi2Stream *stream;
            for (FPWCSApi2Stream *s in [[FPWCSApi2 getSessions][self0] onStoppedgetStreams];) {
                return;
    if ([[s getName] isEqualToString:_remoteStreamName.text]) {
        }
            NSError *errorstream = s;
            [stream stop:&error];
        } else {
break;
             NSLog(@"Stop playing, no session");}
            [self onStopped];}
        }
    } elseif (!stream) {
        if ([FPWCSApi2 getSessions].count) {
     NSLog(@"Stop playing, nothing to  stop");
  [self changeViewState:_remoteStreamName enabled:NO];
            [self playStreamonStopped];
        } else {
      return;
      NSLog(@"Start playing, no session");      }
            [self onStopped]NSError *error;
        }
    }
}

7. Остановка публикации видеопотока. ViewController.m, line 274

FPWCSApi2Stream stop код

Code Block

language	bash
theme	RDark

- (void)publishButton:(UIButton *)button {
 [stream stop:&error];
        } else {
     [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"STOP"]) {
NSLog(@"Stop playing, no session");
           if ([FPWCSApi2self getSessions].count) {onStopped];
            FPWCSApi2Stream *stream;}
        ...
    for (FPWCSApi2Stream *s in [[FPWCSApi2 getSessions][0] getStreams])}
}

7. Остановка публикации видеопотока.

FPWCSApi2Stream stop код

Code Block

language	cpp
theme	RDark

- (void)publishButton:(UIButton *)button {
    [self    changeViewState:button enabled:NO];
        if ([[s getName] isEqualToString:_localStreamName.text]) {
                    stream = s;
      button.titleLabel.text isEqualToString:@"STOP"]) {
        if ([FPWCSApi2 getSessions].count) {
            FPWCSApi2Stream  break*stream;
            for (FPWCSApi2Stream *s in }
   [[FPWCSApi2 getSessions][0] getStreams]) {
         }
       if ([[s    if (!streamgetName] isEqualToString:_localStreamName.text]) {
                NSLog(@"Stop publishing, nothing to stop")    stream = s;
                [self onUnpublished]    break;
                return;}
            }
            NSError *error;
            [stream stop:&error];
        } else {
if (!stream) {
                NSLog(@"Stop publishing, nonothing to sessionstop");
                [self onUnpublished];
          }
    } else {return;
        if  ([FPWCSApi2 getSessions].count) {}
            [self changeViewState:_localStreamName enabled:NO]NSError *error;
            [self publishStreamstream stop:&error];
        } else {
            NSLog(@"StartStop publishing, no session");
            [self onUnpublished];
        }
        }...
    }
}

8. Закрытие соединения.

FPWCSApi2Session disconnect код

Code Block

language	bashcpp
theme	RDark

- (void)connectButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"DISCONNECT"]) {
        if ([FPWCSApi2 getSessions].count) {
            FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
            NSLog(@"Disconnect session with server %@", [session getServerUrl]);
            [session disconnect];
        } else {
            NSLog(@"Nothing to disconnect");
            [self onDisconnected];
        }
    } else {
        //todo check url is not empty
        [self changeViewState:_connectUrl enabled:NO];
        [self connect];  ...
    }
}

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Пример iOS-приложения с плеером и стримером

Работа с кодом примера