Question

我正在ios中创建视频播放器应用程序，如果我将mp4文件存储在bundle资源中，或者如果我流url它工作正常但是如果我将文件存储在文档目录中并且我正在尝试使用avplayer它不会播放应该如何处理文档目录中的脱机文件

代码：

let fileManager = FileManager()
        let destinationURLForFile = URL(fileURLWithPath: documentDirectoryPath.appendingFormat("/myvideo.mp4"))
   self.playVideo(filePath: destinationURLForFile.path)


   func playVideo(filePath:String)
    {
        var playerItem = AVPlayerItem.init(url:URL.init(string: filePath)!)

        var player = AVPlayer(playerItem: playerItem)
        var playerLayer = AVPlayerLayer(player: player)
        playerLayer.frame = self.view.frame
        self.view.layer.addSublayer(playerLayer)
        player.play()

    }

Answer 1

试试这个，用 Swift 3.0 编写，

let fm = FileManager.default
let docsurl = try! fm.url(for:.documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
let path = docsurl.appendingPathComponent("myvideo.mp4")
playVideo(filePath: path)

func playVideo(filePath:String)
{
    var playerItem = AVPlayerItem(url: URL(fileURLWithPath: filePath)
    var player = AVPlayer(playerItem: playerItem)
    var playerLayer = AVPlayerLayer(player: player)
    playerLayer.frame = self.view.frame
    self.view.layer.addSublayer(playerLayer)
    player.play()

}

Answer 2

swift 3/4 100 %%%%%%%可行

录像机打开摄像机

@IBAction func RecordAction(_ sender: Any) {

        if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera){
            print("CameraAvailable")
            let imagePicker = UIImagePickerController()
            imagePicker.delegate = self
            imagePicker.sourceType = .camera
            imagePicker.mediaTypes = [kUTTypeMovie as String]
            imagePicker.allowsEditing = false
            imagePicker.showsCameraControls = true

            self.present(imagePicker,animated: true, completion: nil)
        }

        else{
            print("CameraNotAvailable")
        }
    }

保存到文档目录

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        // recover video URL
        let url = info[UIImagePickerControllerMediaURL] as? URL
        // check if video is compatible with album
        let compatible: Bool = UIVideoAtPathIsCompatibleWithSavedPhotosAlbum((url?.path)!)
        // save
        if compatible {
            UISaveVideoAtPathToSavedPhotosAlbum((url?.path)!, self, nil, nil)
            print("saved!!!! \(String(describing: url?.path))")

        }
        videopath = url //save url to send next function play video
        dismiss(animated: true, completion: nil)
    }
//   error
    func video(_ videoPath: String, didFinishSavingWithError error: Error?, contextInfo: UnsafeMutableRawPointer) {
    }

播放文档目录中的视频

 @IBAction func playvideo(_ sender: Any)
    {
        let player = AVPlayer(url: videopath!)  // video path coming from above function

        let playerViewController = AVPlayerViewController()
        playerViewController.player = player
        self.present(playerViewController, animated: true) {
            playerViewController.player!.play()
        }
}

Answer 3

我尝试了包括上述方法在内的几种方法，但发现每次启动应用程序时，文档路径都会更改，从而更改了网址的第一部分。

这有助于我获取文件的当前位置

                  let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
                let playerItem = AVPlayerItem(url: URL(fileURLWithPath: documentsPath.appendingFormat("/\(clipId).mp4")))
                player = AVPlayer(playerItem: playerItem)

希望这对某人有帮助

如何使用avplayer从documentdirectory播放视频文件

3 个答案: