Question

我有一个功能，我想用它来保存视频到相机胶卷。出于某种原因，在我停止录制后，没有任何反应？它不会将其保存到相机胶卷或除

之外的任何其他错误

Error Domain=NSCocoaErrorDomain Code=-1 "(null)"

这是我的代码：

@IBAction func record(_ sender: UIButton) {

    if recordingInProgress{
        output.stopRecording()
        recordingLabel.textColor = UIColor.rgb(red: 173, green: 173, blue: 173)
        PHPhotoLibrary.shared().performChanges({
            PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: self.outputURL as URL)
        }) { saved, error in
            if saved {
                let alertController = UIAlertController(title: "Your video was successfully saved", message: nil, preferredStyle: .alert)
                let defaultAction = UIAlertAction(title: "OK", style: .default, handler: nil)
                alertController.addAction(defaultAction)
                self.present(alertController, animated: true, completion: nil)
            }
        }
    }


    else{
        let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as NSString
        let outputPath = "\(documentsPath)/output.mov"
        outputURL = NSURL(fileURLWithPath: outputPath)
        output.startRecording(toOutputFileURL: outputURL as URL!, recordingDelegate: self)
        recordingLabel.textColor = UIColor.rgb(red: 250, green: 3, blue: 33)
    }

    recordingInProgress = !recordingInProgress


}

Answer 1

您在致电stopRecording后过早访问该视频文件。正如在here上提到的那样，你应该只尝试使用capture(_:didFinishRecordingToOutputFileAt:fromConnections:error:)委托回调中的URL，因为一旦你要求它停止，记录需要完成对文件的任何写入。

您需要将照片库调用移动到该委托方法中：

func capture(_ captureOutput: AVCaptureFileOutput!, didFinishRecordingToOutputFileAt outputFileURL: URL!, fromConnections connections: [Any]!, error: Error!) {
    // PHPhotoLibrary.shared().performChanges...
}

将视频保存到相机胶卷时出错？ [迅速]

1 个答案: