Timed Metadata with AVPlayer

Question

Can you control how AVURLAsset loads the data it requires? I need to add a custom HTTP header (ICY-MetaData=1) and can\'t seem to figure out how.

Answer 1

Nicolas Young's answer is correct it just needs some small changes to work with Swift 3. There were some red exclamation points so now that I understand key value observation a little better I finally figured out how to fix this

import UIKit
import MediaPlayer

//from the original
//https://stackoverflow.com/a/28057734/1839484

class ViewController: UIViewController {
var Player: AVPlayer!
var PlayerItem: AVPlayerItem!

override func viewDidLoad() {
    super.viewDidLoad()
    let playBackURL = URL(string: "http://ca2.rcast.net:8044/")
    PlayerItem = AVPlayerItem(url: playBackURL!)
    PlayerItem.addObserver(self, forKeyPath: "timedMetadata", options: NSKeyValueObservingOptions(), context: nil)
    Player = AVPlayer(playerItem: PlayerItem)
    Player.play()
}


override func observeValue(forKeyPath: String?, of: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
    if forKeyPath != "timedMetadata" { return }

    let data: AVPlayerItem = of as! AVPlayerItem

    for item in data.timedMetadata! {
        print(item.value!)
    }
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
}