UIVideoEditorController 丢失了视频分辨率

问：

我正在尝试使用 UIVideoEditorController 来编辑我的视频，但它似乎失去了我的视频分辨率。我原来的视频是 ，但使用 后，质量变成了 。720 x 1280UIVideoEditorController360 x 640

我试图将设置为甚至，但这无济于事。videoQualityUIImagePickerControllerQualityTypeHighUIImagePickerControllerQualityTypeIFrame1280x720

我正在iPad上工作，这是我的代码：

self.editorController = [[[UIVideoEditorController alloc] init] autorelease];
self.editorController.videoPath = self.tempVideoPath;
self.editorController.delegate = self;
self.editorController.videoQuality = UIImagePickerControllerQualityTypeHigh;

CKLog(@"%d", self.editorController.videoQuality);

self.popOverController = [[[UIPopoverController alloc] initWithContentViewController:self.editorController] autorelease];
self.popOverController.delegate = self;
self.popOverController.popoverContentSize = CGSizeMake(700, 700);
[self.popOverController presentPopoverFromRect:CGRectMake(0, 0, 1, 1) inView:self.videoView permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];