AVPlayer로 미디어 재생하기

import AVFoundation

let url = URL(string: "https://example.com/video.mp4")!
let item = AVPlayerItem(url: url)
let player = AVPlayer(playerItem: item)

player.play()
// later
player.pause()

let playerLayer = AVPlayerLayer(player: player)
playerLayer.frame = view.bounds
playerLayer.videoGravity = .resizeAspect
view.layer.addSublayer(playerLayer)

let observation = item.observe(\.status) { item, _ in
    if item.status == .readyToPlay {
        player.play()
    }
}

let interval = CMTime(seconds: 0.5, preferredTimescale: 600)
player.addPeriodicTimeObserver(forInterval: interval, queue: .main) { time in
    let seconds = time.seconds
    print("at \(seconds)s")
}

let t = CMTime(seconds: 5, preferredTimescale: 600)
let half = CMTimeMultiplyByFloat64(t, multiplier: 0.5)

let target = CMTime(seconds: 30, preferredTimescale: 600)
player.seek(to: target, toleranceBefore: .zero, toleranceAfter: .zero)

NotificationCenter.default.addObserver(
    forName: .AVPlayerItemDidPlayToEndTime,
    object: item, queue: .main) { _ in
    player.seek(to: .zero)
    player.play() // loop
}

let session = AVAudioSession.sharedInstance()
try? session.setCategory(.playback)
try? session.setActive(true)

let queue = AVQueuePlayer(items: [item1, item2, item3])
queue.play()