CODEWITHSUNDEEP
iosobjective-ciphoneipadavcapturesession
blancos
blancos

Reputation: 1614

AVCaptureSession working fine on iPad but not on iPhone

I am trying to make a video recording app using AVCaptureSession. I have a UIButton which gives the preview layer and sets up the session as follows:

-(void) video:(UIButton*)sender
{
    session = [[AVCaptureSession alloc] init];
    session.sessionPreset = AVCaptureSessionPresetPhoto;

    captureVideoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session];
    [captureVideoPreviewLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill];

    captureVideoPreviewLayer.frame = cameraView.bounds;

    [cameraView.layer addSublayer:captureVideoPreviewLayer];

    NSArray *devices = [AVCaptureDevice devices];
    AVCaptureDevice *frontCamera;
    AVCaptureDevice *backCamera;

    for (AVCaptureDevice *device in devices)
    {
        if ([device hasMediaType:AVMediaTypeVideo])
        {
            if ([device position] == AVCaptureDevicePositionBack)
                backCamera = device;
            else
                frontCamera = device;
        }
    }
    AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:frontCamera error:nil];
    [session addInput:input];

    movieOutput = [[AVCaptureMovieFileOutput alloc]init];
    if ([session canAddOutput:movieOutput]) {
        [session addOutput:movieOutput];
    }

    [session startRunning];
}

Then one more UIButton to just start recording:

-(void) record:(UIButton*)sender
{
    NSLog(@"Recording");

    outputURL = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
    outputURL = [outputURL URLByAppendingPathComponent:@"myVideo.mov"];
    NSString *filePath = [outputURL path];

    [[NSFileManager defaultManager] removeItemAtPath:filePath error:nil];
    NSLog(@"is url :: %d", [outputURL isFileURL]);
    NSLog(@"does file exists :: %d",[[NSFileManager defaultManager] fileExistsAtPath:filePath]);

    [movieOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];    
}

Now, I have no idea why this code works on iPad just fine but crashes on iPhone throwing error:

'*** -[AVCaptureMovieFileOutput startRecordingToOutputFileURL:recordingDelegate:] - no active/enabled connections.'

I looked around for solutions for this particular error but if something wrong with my code then why it works on iPad?

Note:

UPDATE: After so much of trial and error, I found out that if I add only audio as a input then the app works great on iPhones.

AVCaptureDevice *audioDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
    AVCaptureDeviceInput * audioInput = [AVCaptureDeviceInput deviceInputWithDevice:audioDevice error:nil];
    [session addInput:audioInput];

So problem should be in the way I add camera as input, although I didn't find any. And it works for iPads.

Upvotes: 0

Views: 850

Answers (2)

blancos
blancos

Reputation: 1614

After struggling for 2 days, I found the problem to be sessionPreset property which was AVCaptureSessionPresetPhoto. And I solved it by just removing it so that it will use its default value.

Upvotes: 2

Dipen Chudasama
Dipen Chudasama

Reputation: 3093

try below code may be help you.

-(void) record:(UIButton*)sender
{
    NSLog(@"Recording");
            [[[self movieOutput] connectionWithMediaType:AVMediaTypeVideo] setVideoOrientation:(AVCaptureVideoOrientation)[UIDevice currentDevice].orientation];

    NSString *filePath = [NSTemporaryDirectory() stringByAppendingPathComponent:[@"movie" stringByAppendingPathExtension:@"mov"]];

    NSLog(@"does file exists :: %d",[[NSFileManager defaultManager] fileExistsAtPath:filePath]);

    [[self movieOutput] startRecordingToOutputFileURL:[NSURL fileURLWithPath:filePath] recordingDelegate:self];
}

OR See below link

AVCAM Example

Upvotes: 0

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