87 lines
2.2 KiB
Swift
87 lines
2.2 KiB
Swift
//
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import AVFoundation
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@objc
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public protocol OWSVideoPlayerDelegate: class {
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func videoPlayerDidPlayToCompletion(_ videoPlayer: OWSVideoPlayer)
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}
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@objc
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public class OWSVideoPlayer: NSObject {
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@objc
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public let avPlayer: AVPlayer
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let audioActivity: AudioActivity
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@objc
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public weak var delegate: OWSVideoPlayerDelegate?
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@objc public init(url: URL) {
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self.avPlayer = AVPlayer(url: url)
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self.audioActivity = AudioActivity(audioDescription: "[OWSVideoPlayer] url:\(url)", behavior: .playback)
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super.init()
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NotificationCenter.default.addObserver(self,
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selector: #selector(playerItemDidPlayToCompletion(_:)),
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name: NSNotification.Name.AVPlayerItemDidPlayToEndTime,
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object: avPlayer.currentItem)
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}
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// MARK: Dependencies
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var audioSession: OWSAudioSession {
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return Environment.shared.audioSession
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}
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// MARK: Playback Controls
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@objc
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public func pause() {
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avPlayer.pause()
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audioSession.endAudioActivity(self.audioActivity)
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}
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@objc
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public func play() {
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let success = audioSession.startAudioActivity(self.audioActivity)
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assert(success)
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guard let item = avPlayer.currentItem else {
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owsFailDebug("video player item was unexpectedly nil")
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return
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}
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if item.currentTime() == item.duration {
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// Rewind for repeated plays, but only if it previously played to end.
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avPlayer.seek(to: CMTime.zero)
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}
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avPlayer.play()
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}
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@objc
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public func stop() {
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avPlayer.pause()
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avPlayer.seek(to: CMTime.zero)
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audioSession.endAudioActivity(self.audioActivity)
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}
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@objc(seekToTime:)
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public func seek(to time: CMTime) {
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avPlayer.seek(to: time)
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}
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// MARK: private
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@objc
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private func playerItemDidPlayToCompletion(_ notification: Notification) {
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self.delegate?.videoPlayerDidPlayToCompletion(self)
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audioSession.endAudioActivity(self.audioActivity)
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}
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}
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