Either using a UIImagePicker Controller or AVFoundation I need to capture or record the video where not only camera output but also overlay subviews should be recorded. I have seen lots of example to add the overlay image to camera preview but what i want is not only overlay image or text preview but actual recording of the overlay in the final video output.

 CALayer *theDonut = [CALayer layer];
        theDonut.bounds = CGRectMake(50,50, 150, 150);
        theDonut.cornerRadius = 50/2;
        theDonut.backgroundColor = [UIColor clearColor].CGColor;
        theDonut.borderWidth = 50/5;
        theDonut.borderColor = [UIColor orangeColor].CGColor;

// Set up Preview Layer

videoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:capSession];
videoPreviewLayer.frame = videoPreview.bounds;
videoPreviewLayer.backgroundColor = [UIColor blackColor].CGColor;
videoPreviewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
        
videoPreview.layer.masksToBounds = YES;
[videoPreview.layer addSublayer:videoPreviewLayer];
[videoPreview.layer addSublayer:theDonut];

//7.2 add text

UIFont *font = [UIFont fontWithName:@"MarkerFelt-Thin" size:40.0];
    CGSize maxSize = CGSizeMake(480, 10000.0);
    CGSize labelSize = [@"Test Text" sizeWithFont:font constrainedToSize:maxSize lineBreakMode:NSLineBreakByWordWrapping];
    CGRect labelFrame = CGRectMake(50.0, 10.0, labelSize.width, labelSize.height);
    UILabel *label = [[UILabel alloc] initWithFrame:labelFrame];
    label.font = font;
    label.text = @"Test Text";
    label.numberOfLines = 0;
    [videoPreview addSubview:label];

This Example is modified from this sample code - It does add text and drawing to the video preview but does not record those in final output file.

http://ioscoreframeworks.com/assets/code/DemoCapture.zip

Either using a UIImagePicker Controller or AVFoundation I need to capture or record the video where not only camera output but also overlay subviews should be recorded. I have seen lots of example to add the overlay image to camera preview but what i want is not only overlay image or text preview but actual recording of the overlay in the final video output.

// adding Graphical Layer

 CALayer *theDonut = [CALayer layer];
 theDonut.bounds = CGRectMake(50,50, 150, 150);
 theDonut.cornerRadius = 50/2;
 theDonut.backgroundColor = [UIColor clearColor].CGColor;
 theDonut.borderWidth = 50/5;
 theDonut.borderColor = [UIColor orangeColor].CGColor;

// Set up video Preview Layer

videoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:capSession];
videoPreviewLayer.frame = videoPreview.bounds;
videoPreviewLayer.backgroundColor = [UIColor blackColor].CGColor;
videoPreviewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
        
videoPreview.layer.masksToBounds = YES;
[videoPreview.layer addSublayer:videoPreviewLayer];
[videoPreview.layer addSublayer:theDonut];

// adding text layer

UIFont *font = [UIFont fontWithName:@"MarkerFelt-Thin" size:40.0];
    CGSize maxSize = CGSizeMake(480, 10000.0);
    CGSize labelSize = [@"Test Text" sizeWithFont:font constrainedToSize:maxSize lineBreakMode:NSLineBreakByWordWrapping];
    CGRect labelFrame = CGRectMake(50.0, 10.0, labelSize.width, labelSize.height);
    UILabel *label = [[UILabel alloc] initWithFrame:labelFrame];
    label.font = font;
    label.text = @"Test Text";
    label.numberOfLines = 0;
    [videoPreview addSubview:label];

// even add button overlay !!!

    UIButton *snap = [UIButton buttonWithType:UIButtonTypeCustom];
    [snap setImage:[UIImage imageNamed:@"takePic"]
          forState:UIControlStateNormal];
    [snap addTarget:self
             action:@selector(pickerCameraSnap:)
   forControlEvents:UIControlEventTouchUpInside];
    snap.frame = CGRectMake(74, 370, 178, 37);
   
    [videoPreview addSubview:snap];

    // 8) Commit session configuration
    // 9) Start running capture session
    // ========================================
    [capSession commitConfiguration];
    [capSession startRunning];
    

    //Make sure video is not recording
    [[videoDataOutput connectionWithMediaType:AVMediaTypeVideo] setEnabled:NO];

This Example is modified from this sample code - It does add text and drawing to the video preview but does not record those in final output file.

http://ioscoreframeworks.com/assets/code/DemoCapture.zip