Impossible to Stop Avplayer

Impossible to stop AVPlayer

If you declare player as an optional variable, you can then set the player to nil to deallocate it.

Silly example but it shows what happens:

import UIKit
import AVFoundation

class ViewController: UIViewController {

    @IBOutlet weak var btnPlay: UIButton!

    var player:AVPlayer?

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    @IBAction func btnPress(sender: AnyObject) {
        if (btnPlay.titleLabel?.text == "Play") {
            initPlayer()
            btnPlay.setTitle("Stop", forState: UIControlState.Normal)
        } else {
            stopPlayer()
            btnPlay.setTitle("Play", forState: UIControlState.Normal)
        }
    }

    func initPlayer()  {
        if let play = player {
            print("playing")
            play.play()
        } else {
            print("player allocated")
            player = AVPlayer(URL: NSURL(string: "http://streaming.radio.rtl.fr/rtl-1-48-192")!)
            print("playing")
            player!.play()
        }
    }

    func stopPlayer() {
        if let play = player {
            print("stopped")
            play.pause()
            player = nil
            print("player deallocated")
        } else {
            print("player was already deallocated")
        }
    }
}

How to stop a video in AVPlayer?

AVPlayer does not have a method named stop. You can pause or set rate to 0.0.

Is it possible to force AVPlayer stop playing video externally (on Apple TV)

First you'd have to read this reference on programming multiple displays.

But in this specific situation I think, you are looking for [UIScreen screens] which returns an NSArray of UIScreen objects. The UIScreen with index 0 is the internal display and the one with the index 1 is the Apple TV's display. From now on, according to this documentation and its examples you only need to create a UIWindow which has the screen property of the UIScreen you want to display on. Then you can easily add layers, views, etc. to that UIWindow.

AVPlayer stops playing and doesn't resume again

Yes, it stops because the buffer is empty so it has to wait to load more video. After that you have to manually ask for start again. To solve the problem I followed these steps:

1) Detection: To detect when the player has stopped I use the KVO with the rate property of the value:

-(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
    if ([keyPath isEqualToString:@"rate"] )
    {

        if (self.player.rate == 0 && CMTimeGetSeconds(self.playerItem.duration) != CMTimeGetSeconds(self.playerItem.currentTime) && self.videoPlaying)
        {
            [self continuePlaying];
        }
      }
    }

This condition: CMTimeGetSeconds(self.playerItem.duration) != CMTimeGetSeconds(self.playerItem.currentTime) is to detect the difference between arriving at the end of the video or stopping in the middle

2) Wait for the video to load - If you continue playing directly you will not have enough buffer to continue playing without interruption. To know when to start you have to observe the value playbackLikelytoKeepUp from the playerItem (here I use a library to observe with blocks but I think it makes the point):

-(void)continuePlaying
 {

if (!self.playerItem.playbackLikelyToKeepUp)
{
    self.loadingView.hidden = NO;
    __weak typeof(self) wSelf = self;
    self.playbackLikelyToKeepUpKVOToken = [self.playerItem addObserverForKeyPath:@keypath(_playerItem.playbackLikelyToKeepUp) block:^(id obj, NSDictionary *change) {
        __strong typeof(self) sSelf = wSelf;
        if(sSelf)
        {
            if (sSelf.playerItem.playbackLikelyToKeepUp)
            {
                [sSelf.playerItem removeObserverForKeyPath:@keypath(_playerItem.playbackLikelyToKeepUp) token:self.playbackLikelyToKeepUpKVOToken];
                sSelf.playbackLikelyToKeepUpKVOToken = nil;
                [sSelf continuePlaying];
            }
                    }
    }];
}

And that's it! problem solved

Edit: By the way the library used is libextobjc

Swift AVPlayer How To Stop Automatically When Audio Finished

You can use the NSNotificationCenter Observer

    NSNotificationCenter.defaultCenter().addObserver(self, selector: "playerDidFinishPlaying:", name: AVPlayerItemDidPlayToEndTimeNotification, object: item)

    player?.play()

and stop player in this function

    func playerDidFinishPlaying(note: NSNotification) {
        // Your code here
        player?.pause()
        player?.replaceCurrentItem(with: nil)
    }

iOS AVPlayer cancel buffering

So the correct answer is @Che with:

If you will call [self.player replaceCurrentItemWithPlayerItem:nil];
buffering stops. – Che Oct 13 at 14:36

and you do so on the observer listening for the status update from the playerWithPlayerItem. Thanks All!

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