title: AVPlayer got the metadata but not playing
body: <p>I'm trying to do a very simple application, the purpose is listening an audio stream (<strong>AAC 64 kbps</strong>). To do so I'm using <code>AVPlayer</code> from the <code>Apple AVFoundation</code> has follow :</p>
  
  <p><strong>ViewController.m</strong></p>
  
  <pre><code>#import "ViewController.h"
  @interface ViewController ()
  @end
  
  @implementation ViewController
  @synthesize playerItem, player;
  
  - (void)viewDidLoad
  {
      [super viewDidLoad];
  }
  
  - (void) viewWillAppear:(BOOL)animated{
      [super viewWillAppear:animated];
      playerItem = [AVPlayerItem playerItemWithURL:[NSURL URLWithString:@"http://stream.myjungly.fr/MYJUNGLY2"]];
      [playerItem addObserver:self forKeyPath:@"timedMetadata" options:NSKeyValueObservingOptionNew context:nil];
  
      player = [AVPlayer playerWithPlayerItem:playerItem];
      [player play];
  
      NSLog(@"player item error : %@", playerItem.error.description);
      NSLog(@"player error : %@", player.error.description);
  }
  
  - (void) observeValueForKeyPath:(NSString*)keyPath ofObject:(id)object
                       change:(NSDictionary*)change context:(void*)context {
  
      if ([keyPath isEqualToString:@"timedMetadata"])
      {
          AVPlayerItem* _playerItem = object;
          for (AVMetadataItem* metadata in _playerItem.timedMetadata)
          {
              NSLog(@"\nkey: %@\nkeySpace: %@\ncommonKey: %@\nvalue: %@", [metadata.key description], metadata.keySpace, metadata.commonKey, metadata.stringValue);
          }
      }
  }
  
  @end
  </code></pre>
  
  <p>My object <code>player</code> and <code>playerItem</code> are <strong>strong</strong> properties :</p>
  
  <p><strong>ViewController.h</strong></p>
  
  <pre><code>@interface ViewController : UIViewController
  
  @property (nonatomic, strong) AVPlayerItem* playerItem;
  @property (nonatomic, strong) AVPlayer* player;
  
  @end
  </code></pre>
  
  <p>The Key Value Observer is working great, here is my log :</p>
  
  <pre><code>2013-05-14 11:18:03.725 MusicAvPlayer[6494:907] player item error : (null)
  2013-05-14 11:18:03.728 MusicAvPlayer[6494:907] player error : (null)
  2013-05-14 11:18:08.140 MusicAvPlayer[6494:907] 
  key: title
  keySpace: comn
  commonKey: title
  value: Alabama Shakes - Be Mine
  </code></pre>
  
  <p><strong>But</strong> the audio is not played, I've go no sound ! Any idea why ?</p>
  
  <p><strong>EDIT:</strong> I already look at this questions :</p>
  
  <p><a href="https://stackoverflow.com/questions/12887132/no-sound-coming-from-avplayer">No sound coming from AVPlayer</a></p>
  
  <p><a href="https://stackoverflow.com/questions/10856332/avaudioplayer-no-sound">AVAudioPlayer, No Sound</a></p>
  
  <p><a href="https://stackoverflow.com/questions/8016765/avaudioplayer-not-playing-any-sound">AVAudioPlayer not playing any sound</a></p>
  
  <p>That's why I'm using a strong property, so I guess my problem is not ARC related</p>