orj orj - 1 year ago 375
iOS Question

Looping a video with AVFoundation AVPlayer?

Is there a relatively easy way of looping a video in AVFoundation?

I've created my AVPlayer and AVPlayerLayer like so:

avPlayer = [[AVPlayer playerWithURL:videoUrl] retain];
avPlayerLayer = [[AVPlayerLayer playerLayerWithPlayer:avPlayer] retain];

avPlayerLayer.frame = contentView.layer.bounds;
[contentView.layer addSublayer: avPlayerLayer];

and then I play my video with:

[avPlayer play];

The video plays fine but stops at the end. With the MPMoviePlayerController all you have to do is set its
property to the right value. There doesn't appear to be a similar property on AVPlayer. There also doesn't seem to be a callback that will tell me when the movie has finished so I can seek to the beginning and play it again.

I'm not using MPMoviePlayerController because it has some serious limitations. I want to be able to play back multiple video streams at once.

Answer Source

You can get a Notification when the player ends... check AVPlayerItemDidPlayToEndTimeNotification

when setting up the player:

  avPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone; 

  [[NSNotificationCenter defaultCenter] addObserver:self
                                             object:[avPlayer currentItem]];

this will prevent the player to pause at the end.

in the notification:

- (void)playerItemDidReachEnd:(NSNotification *)notification {
    AVPlayerItem *p = [notification object];
    [p seekToTime:kCMTimeZero];

this will rewind the movie.

Don't forget un unregister the notification when releasing the player.