iPhone：5秒视频捕获 [英] iPhone: 5 seconds video capture

问题描述

我想编写代码，以便在用户按下按钮时，相机启动并记录5秒的视频。换句话说，我想有视频捕获，但有时间限制。

I would like to write code so that when the user presses a button, the camera is launched and records 5 seconds of video. In other words I want to have video capture but with a time limit.

在UIImagePickerController或框架的其他部分是否有什么东西允许这样做？谢谢。

Is there something inside the UIImagePickerController or other parts of the framework that would allow doing this? Thank you.

推荐答案

没有什么能让你直接这样做。但你可以很容易地使用UIImagePickerController的 startVideoCapture 开始捕获，然后调用 stopVideoCapture 5秒钟后， code> [picker performSelector：@selector（stopVideoCapture）withObject：nil afterDelay：5] 。

There is nothing that allows you to directly do this. But you can very easily use UIImagePickerController's startVideoCapture to begin the capture and then call stopVideoCapture 5 seconds later, for example with [picker performSelector:@selector(stopVideoCapture) withObject:nil afterDelay:5].

与AVFoundation一样，特别是AVCaptureMovieFileOutput的 startRecordingToOutputFileURL：recordingDelegate：和 stopRecording 方法。

Or you can do basically the same thing with AVFoundation, in particular AVCaptureMovieFileOutput's startRecordingToOutputFileURL:recordingDelegate: and stopRecording methods.

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