当从摄像机切换到视频时，UIImagePickerController崩溃

Question

切换到视频捕获模式后，在使用ios 13真实设备的iPhone上，UIImagePickerController崩溃。崩溃在UIImagePickerController的第二次演示中重现。崩溃不会在ios 13（真实设备）之前的版本上重现。在使用Xcode 11.0构建的Info.plist测试应用中设置了相机和麦克风的使用描述键。

步骤：

目前的UIImagePickerController关闭UIImagePickerController目前的UIImagePickerController点按视频按钮->崩溃如果我设置videoQuality = UIImagePickerControllerQualityTypeHigh，则崩溃不会重现。但是我需要UIImagePickerControllerQualityTypeMedium。

@interface ViewController () < UINavigationControllerDelegate, UIImagePickerControllerDelegate>
@end

@implementation ViewController

#pragma mark - IBActions

- (IBAction)showPicker:(UIButton *)sender {
    UIImagePickerController *pickerController = [UIImagePickerController new];
    pickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
    pickerController.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];
//    pickerController.videoQuality = UIImagePickerControllerQualityTypeHigh;
    pickerController.delegate = self;

    [self presentViewController:pickerController animated:YES completion:NULL];
}

#pragma mark - UIImagePickerControllerDelegate

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<UIImagePickerControllerInfoKey, id> *)info {
    [self dismissViewControllerAnimated:YES completion:NULL];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
    [self dismissViewControllerAnimated:YES completion:NULL];
}

@end
'NSInvalidArgumentException'，原因：'***-[AVCaptureDevice setActiveColorSpace：]不支持-使用activeFormat.supportedColorSpaces'

切换到视频捕获模式后，在使用ios 13真实设备的iPhone上，UIImagePickerController崩溃。崩溃在UIImagePickerController的第二次演示中重现。崩溃了...

Answer 1

在pickercontroller中设置视频质量