ios - 如何从 UIImagePickerController 获取 1080p 视频？
<p><p>当我使用 <code>UIImagePickerController</code> 导入 1080p 视频时，然后询问它的大小是多少，它报告它只有 720p。 </p>
<p>这是我打开图像选择器的方法:</p>
<pre><code> let picker = UIImagePickerController()
picker.sourceType = .PhotoLibrary
picker.videoQuality = .TypeHigh
picker.allowsEditing = false
picker.delegate = self
picker.modalPresentationStyle = .Popover
picker.popoverPresentationController?.sourceView = self.view
picker.popoverPresentationController?.sourceRect = self.findButton.frame
picker.mediaTypes =
self.navigationController?.presentViewController(picker, animated: true, completion: nil)
</code></pre>
<p>然后，当用户选择图片时:</p>
<pre><code>func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: ) {
let readMovieURL = info
// ...
}
</code></pre>
<p>稍后我询问大小:(这个位在Objective-c中)</p>
<pre><code>NSDictionary *options = @{AVURLAssetPreferPreciseDurationAndTimingKey:@YES};
AVURLAsset *readMovieAsset = [ initWithURL:readMovieURL options:options];
AVAssetTrack * track = [ firstObject];
// Why is it 720p?
CGSize size = track.naturalSize;
</code></pre>
<p>如何让用户从他们的库中选择一个 1080p 视频，然后以全分辨率使用它？</p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>问题在于使用 <code>UIImagePickerControllerMediaURL</code>。这具体是指经过处理(压缩)的视频。切换到以下为我提供了完整的 1080p 视频:</p>
<pre><code>func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: ) {
// Reference URL instead
let readMovieURL = info
}
</code></pre>
<p>我不知道如何防止选择器首先进行压缩过程。 </p></p>
<p style="font-size: 20px;">关于ios - 如何从 UIImagePickerController 获取 1080p 视频？，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/37839314/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/37839314/
</a>
</p>
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