let playerView = TrailerPlayerView()
let item = TrailerPlayerItem(
            url: URL(string: "..."),
            thumbnailUrl: URL(string: "..."))
playerView.playbackDelegate = self
playerView.set(item: item)

required public init(url: URL? = nil,                // trailer url
                     thumbnailUrl: URL? = nil,       // thumbnail url
                     thumbnailImage: UIImage? = nil, // 若已有 thumbnail 圖片時，可直接提供 
                     autoPlay: Bool = true,          // 自動播放，否則自行呼叫 play()
                     autoReplay: Bool = false,       // 播放完畢後，是否自動重新播放
                     mute: Bool = true,              // 預設播放為靜音
                     isDRMContent: Bool = false)     // 是否為 DRM 內容

// 當 player 播放時，可透過此 callback 更新播放時間
func trailerPlayer(_ player: TrailerPlayer, didUpdatePlaybackTime time: TimeInterval)
// 當 player 狀態改變時，可透過此 callback 更新控制面板上的播放狀態
func trailerPlayer(_ player: TrailerPlayer, didChangePlaybackStatus status: TrailerPlayerPlaybackStatus)
// 當 player item 狀態變為 readyToPlay 時觸發
func trailerPlayerPlaybackReady(_ player: TrailerPlayer)
// 當 player 播放發生錯誤時觸發
func trailerPlayer(_ player: TrailerPlayer, playbackDidFailed error: TrailerPlayerPlaybackError)

playerView.enablePictureInPicture = true

let controlPanel: UIView = ... // your custom control panel
playerView.addControlPanel(controlPanel)

let replayPanel: UIView = ... // your custom replay panel
playerView.addReplayPanel(replayPanel)

let playerView = TrailerPlayerView()
let item = TrailerPlayerItem(
            url: URL(string: "..."),
            thumbnailUrl: URL(string: "..."),
            isDRMContent: true)
playerView.playbackDelegate = self
playerView.DRMDelegate = self
playerView.set(item: item)

// DRM Delegate
extension ViewController: TrailerPlayerDRMDelegate {
    
    func certUrl(for player: TrailerPlayer) -> URL {
        return URL(string: ...) // your certificate url
    }
    
    func ckcUrl(for player: TrailerPlayer) -> URL {
        return URL(string: ...) // your ckc url
    }
}

// CKC(Content Key Context) URL
func ckcUrl(for player: TrailerPlayer) -> URL
// Certificate URL
func certUrl(for player: TrailerPlayer) -> URL
// Optional: content Id for SPC(Server Playback Context) message
func contentId(for player: TrailerPlayer) -> String?
// Optional: HTTP header fields for CKC request
func ckcRequestHeaderFields(for player: TrailerPlayer) -> [(headerField: String, value: String)]?