Save recorded video from AVFoundation - ios

Question

I am not able to save the recorder video from AVFoundation... In didfinishcapture I check if file exists in the temporary folder, code always returns NO.
Also, this warning is printed when i stop the recording:
"cannot be saved to the saved photos album: Error Domain=NSOSStatusErrorDomain Code=2 "This movie could not be played." UserInfo=0x1c5696c0 {NSLocalizedDescription=This movie could not be played.}"
#define OP_PATH [NSTemporaryDirectory() stringByAppendingPathComponent:[#"movie" stringByAppendingPathExtension:#"mov"]]
- (IBAction) startSession:(id)sender
{
if(! self.captureSession)
{
//Session
self.captureSession = [[AVCaptureSession alloc] init];
//self.captureSession.sessionPreset = AVCaptureSessionPresetMedium;
//Layer of own view
CALayer *viewLayer = self.captureView.layer;
//AVCaptureVideoPreviewLayer
AVCaptureVideoPreviewLayer *avCaptureLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:self.captureSession];
avCaptureLayer.frame = self.captureView.bounds;
[self.captureView.layer addSublayer:avCaptureLayer];
//AVCaptureDevice
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
NSError *err = nil;
//Output - Image
self.stillImgOutput = [[AVCaptureStillImageOutput alloc] init];
[self.stillImgOutput setOutputSettings:[NSDictionary dictionaryWithObjectsAndKeys:
AVVideoCodecJPEG, AVVideoCodecKey,
nil]];
[self.captureSession addOutput:self.stillImgOutput];
//Output - Video
self.movieOutput = [[AVCaptureMovieFileOutput alloc] init];
// NSString* key = (NSString*)kCVPixelBufferBytesPerRowAlignmentKey;
//
// NSNumber* value = [NSNumber numberWithUnsignedInt:kCVPixelFormatType_32BGRA];
//
// NSDictionary* videoSettings = [NSDictionary dictionaryWithObject:value forKey:key];
if([self.captureSession canAddOutput:self.movieOutput])
{
NSLog(#"Movie out put added");
[self.captureSession addOutput:self.movieOutput];
}
else
{
NSLog(#"Cannot add movie out put");
}
//Input
AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&err];
if(! input)
{
NSLog(#"Error no camera");
return;
}
if([self.captureSession canAddInput:input])
{
[self.captureSession addInput:input];
}
else
{
NSLog(#"Cannot add input. Check Output Settings");
}
}
if(! [self.captureSession isRunning])
{
[self.captureSession startRunning];
}
else
{
NSLog(#"Session already running");
}
}
- (void)captureOutput:(AVCaptureFileOutput *)captureOutput didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL fromConnections:(NSArray *)connections error:(NSError *)error
{
NSLog(#"Did stop recording to - %# \n Any error ? - %#", outputFileURL, [error description]);
if([[NSFileManager defaultManager] fileExistsAtPath:[outputFileURL absoluteString]])
{
NSLog(#"YES file exists");
}
else
{
NSLog(#"NO File does not exist");
}
if(UIVideoAtPathIsCompatibleWithSavedPhotosAlbum([outputFileURL absoluteString]))
{
NSLog(#"YES file is compatible to be saved in Album");
UISaveVideoAtPathToSavedPhotosAlbum([outputFileURL absoluteString], self, #selector(video:didFinishSavingWithError:contextInfo:), nil);
}
else
{
NSLog(#"NO File is not compatible");
}
}
- (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{
if(! error)
{
NSLog(#"Video Saved to Album");
}
else
{
NSLog(#"Video not saved to Album - %#", [error description]);
}
NSError *er;
[[NSFileManager defaultManager] removeItemAtPath:OP_PATH error:&er];
if(! er)
{
NSLog(#"Temporary file deleted");
}
else
{
NSLog(#"Temporary file not deleted - %#", [er description]);
}
}

Answer 1

You are missing the following piece of code. See below
//Use timestamp to get new movie name everytime you capture
NSString *timeStamp = [NSString stringWithFormat:#"%0.0f",[[NSDate date] timeIntervalSince1970] * 1000];
NSString *movieOutputUrl =[NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.mov",timeStamp]];
NSURL *url = [NSURL URLWithString:movieOutputUrl];
[self.movieOutput startRecordingToOutputFileURL:url recordingDelegate:self];
I hope it helps.
Cheers.

Answer 2

- (void)captureOutput:(AVCaptureFileOutput *)captureOutputdidFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL fromConnections:(NSArray *)connections error:(NSError *)error
{
if (error)
{
NSLog(#"%#", error);
}
UIBackgroundTaskIdentifier backgroundRecordingID = [self backgroundRecordingID];
[self setBackgroundRecordingID:UIBackgroundTaskInvalid];
[[[ALAssetsLibrary alloc] init] writeVideoAtPathToSavedPhotosAlbum:outputFileURL completionBlock:^(NSURL *assetURL, NSError *error) {
if (error)
{
NSLog(#"%#", error);
}
[[NSFileManager defaultManager] removeItemAtURL:outputFileURL error:nil];
if (backgroundRecordingID != UIBackgroundTaskInvalid)
{
[[UIApplication sharedApplication] endBackgroundTask:backgroundRecordingID];
}
}];
}
Hope can help.