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iOS Player

Example of player for iOS

This player can be used to play any type of stream on Web Call Server

  • RTSP
  • WebRTC
  • RTMP

On the screenshot below an RTSP stream is being playing.

In the input fields

  • in the URL is the address of the WCS server
  • stream name is entered in to the 'Play Stream' field (RTSP URL in this case)

Analyzing the example code

To analyze the code, let's take Player example, which is available here.

View class for the main view of the application: ViewController (header file ViewController.h; implementation file ViewController.m).

1. Import of API


#import <FPWCSApi2/FPWCSApi2.h>

2. Session creation

FPWCSApi2.createSession code

The options include:

  • URL of WCS server
  • appKey of internal server-side REST hook application (defaultApp)
FPWCSApi2SessionOptions *options = [[FPWCSApi2SessionOptions alloc] init];
options.urlServer = _connectUrl.text;
options.appKey = @"defaultApp";
NSError *error;
FPWCSApi2Session *session = [FPWCSApi2 createSession:options error:&error];

3. Connection to the server

FPWCSApi2Session.connect code

[session connect];

4. Receiving the event confirming successful connection

FPWCSApi2Session.onConnected code

On this event, stream playback is started

- (void)onConnected:(FPWCSApi2Session *)session {
    [self changeViewState:_remoteStreamName enabled:NO];
    [self playStream];

5. Stream playback

FPWCSApi2Session.createStream, code

Object with the following stream options is passed to createStream method:

  • stream name
  • view to display video
- (FPWCSApi2Stream *)playStream {
    FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
    FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init]; = _remoteStreamName.text;
    options.display = _remoteDisplay;
    NSError *error;
    FPWCSApi2Stream *stream = [session createStream:options error:nil];
    if(![stream play:&error]) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to play"

        UIAlertAction* okButton = [UIAlertAction
                                   handler:^(UIAlertAction * action) {


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

6. Disconnection

FPWCSApi2Session.disconnect code

- (void)startButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"STOP"]) {
        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 {
        [self changeViewState:_connectUrl enabled:NO];
        [self connect];

7. Receiving the event confirming successful disconnection

FPWCSApi2Session.onDisconnected code

- (void)onDisconnected {
    [self changeViewState:_connectUrl enabled:YES];
    [self onStopped];