Video Saving in the wrong orientation AVCaptureSession - ios

Question

I'm trying to record a video (without displaying the camera) and save it. But the video being saved is not saving in the right orientation. I've tried forcing the UIViewController to be a certain orientation but that didn't help. All videos are being recorded in portrait. My code is below:
session = [[AVCaptureSession alloc] init];
[session beginConfiguration];
session.sessionPreset = AVCaptureSessionPresetHigh;
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
for (AVCaptureDevice *cam in [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo])
{
if (cam.position == AVCaptureDevicePositionFront)
device = cam;
}
NSError *error = nil;
AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];
if (!input) {
// Handle the error appropriately.
NSLog(#"ERROR: trying to open camera: %#", error);
}
AVCaptureDevice *audioDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
AVCaptureDeviceInput * audioInput = [AVCaptureDeviceInput deviceInputWithDevice:audioDevice error:nil];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPath = [paths objectAtIndex:0];
NSString *outputpathofmovie = [[documentsDirectoryPath stringByAppendingPathComponent:#"RecordedVideo"] stringByAppendingString:#".mp4"];
outputURL = [[NSURL alloc] initFileURLWithPath:outputpathofmovie];
[self deleteTempVideos];
[session addInput:input];
[session addInput:audioInput];
[session commitConfiguration];
[session startRunning];
movieFileOutput = [[AVCaptureMovieFileOutput alloc] init];
NSLog(#"%#", movieFileOutput.connections);
AVCaptureConnection *videoConnection = nil;
for ( AVCaptureConnection *connection in [movieFileOutput connections] )
{
NSLog(#"%#", connection);
for ( AVCaptureInputPort *port in [connection inputPorts] )
{
NSLog(#"%#", port);
if ( [[port mediaType] isEqual:AVMediaTypeVideo] )
{
videoConnection = connection;
}
}
}
if([videoConnection isVideoOrientationSupported]) // **Here it is, its always false**
{
[videoConnection setVideoOrientation:[[UIDevice currentDevice] orientation]];
}
NSLog(#"%#", videoConnection);
[session addOutput:movieFileOutput];
[movieFileOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];

Answer 1

It turns out you have to add the connections' orientation to the AVCaptureMovieFileOutput after it is added to the session.
session = [[AVCaptureSession alloc] init];
[session beginConfiguration];
session.sessionPreset = AVCaptureSessionPresetHigh;
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
for (AVCaptureDevice *cam in [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo])
{
if (cam.position == AVCaptureDevicePositionFront)
device = cam;
}
NSError *error = nil;
AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];
if (!input) {
// Handle the error appropriately.
NSLog(#"ERROR: trying to open camera: %#", error);
}
AVCaptureDevice *audioDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
AVCaptureDeviceInput * audioInput = [AVCaptureDeviceInput deviceInputWithDevice:audioDevice error:nil];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectoryPath = [paths objectAtIndex:0];
NSString *outputpathofmovie = [[documentsDirectoryPath stringByAppendingPathComponent:#"RecordedVideo"] stringByAppendingString:#".mp4"];
outputURL = [[NSURL alloc] initFileURLWithPath:outputpathofmovie];
[self deleteTempVideos];
[session addInput:input];
[session addInput:audioInput];
[session commitConfiguration];
[session startRunning];
movieFileOutput = [[AVCaptureMovieFileOutput alloc] init];
[session addOutput:movieFileOutput];
AVCaptureConnection *videoConnection = nil;
for ( AVCaptureConnection *connection in [movieFileOutput connections] )
{
NSLog(#"%#", connection);
for ( AVCaptureInputPort *port in [connection inputPorts] )
{
NSLog(#"%#", port);
if ( [[port mediaType] isEqual:AVMediaTypeVideo] )
{
videoConnection = connection;
}
}
}
if([videoConnection isVideoOrientationSupported]) // **Here it is, its always false**
{
[videoConnection setVideoOrientation:[[UIDevice currentDevice] orientation]];
}
[movieFileOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];

Answer 2

**
Try changing its orientation just before starting recording.
**
if let videoConnection = fileOutput.connection(with: .video) {
let newOrientation: AVCaptureVideoOrientation
switch UIDevice.current.orientation {
case .portrait:
newOrientation = .portrait
case .portraitUpsideDown:
newOrientation = .portraitUpsideDown
case .landscapeLeft:
newOrientation = .landscapeRight
case .landscapeRight:
newOrientation = .landscapeLeft
default :
newOrientation = .portrait
}
videoConnection.videoOrientation = newOrientation
self.fileOutput.startRecording(to: URL(fileURLWithPath: filePath), recordingDelegate: self)
}
where,
var fileOutput : AVCaptureMovieFileOutput!

Answer 3

Try something like this:
#import <AVFoundation/AVFoundation.h>
AVCaptureConnection *captureConnection = <#A capture connection#>;
if ([captureConnection isVideoOrientationSupported])
{
AVCaptureVideoOrientation orientation = AVCaptureVideoOrientationLandscapeLeft;
[captureConnection setVideoOrientation:orientation];
}
http://developer.apple.com/library/ios/#qa/qa1744/_index.html#//apple_ref/doc/uid/DTS40011134

Answer 4

Thank you Destiny Dawn, incase anyone is looking for the code for Xamarin ios:
AVCaptureConnection videoConnection = null;
foreach(AVCaptureConnection connection in _videoOutput.Connections)
{
foreach ( AVCaptureInputPort port in connection.InputPorts)
{
if (port.MediaType == AVMediaType.Video)
{
videoConnection = connection;
break;
}
}
}
if (videoConnection != null) {
if (videoConnection.SupportsVideoOrientation) {
videoConnection.VideoOrientation = AVCaptureVideoOrientation.LandscapeRight;
}
}