Valahogy igy:
for(int i = 0; i < [[captureOutput connections] count]; i++) {
AVCaptureConnection *captureConnection = [[captureOutput connections] objectAtIndex:i];
if([captureConnection isVideoOrientationSupported]) {
[captureConnection setVideoOrientation:[[UIDevice currentDevice] orientation]];
}
}
Fontos viszont, hogy AVCaptureVideoDataOutput connection-jan nem lehet videoOrientation-t (es videoMirrored-et) allitani.