AVPlayer doesn't load ICY-Metadata from Server Response

Hi,

i'm trying to get Metadata from an Shoutcast Stream. The Code below shows the Things i've done to get some Metadata. I only get the Artist und the Album.

But the Server sends other Metadata on the initial Response like icy-br and icy-url.

But AVPlayer seems to ignore them.

func foo()
{
     let asset = AVAsset(url: url)
     playerItem = AVPlayerItem(asset: asset)

     item.addObserver(self, forKeyPath: "timedMetadata", options: NSKeyValueObservingOptions.new, context: nil)

     player = AVPlayer()
     player.replaceCurrentItem(with: item)
}

override open func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
{
     ....    
     switch keyPath
     {
          case "timedMetadata":
                let rawValue = item.timedMetadata?.first?.value as? String
                handleTimedMetadata(rawValue: rawValue)
     }
}

I also registered to the Notificationcenter to receive AccessLogEntry. But on ICY Streams the method is not called, only on HLS Streams!

There i can readout some bitrate informations.

notificationCenter.addObserver(self, selector:#selector(handleNewAccessLogEntry), name: .AVPlayerItemNewAccessLogEntry, object: nil)

The easiest way i think is getting the DataTask behind AVURLAsset. But this is only possible when using AVAssetDownloadURLSession. But i dont want any data to be downloaded to a file on the device.

Probaly i missed something or is AVPlayer buggy or still work in progress?

Any Suggestions how to get the ICY-Metadata?