Question

I have a helper method I use to set up video inputs and outputs. Within the helper method I need to set the delegate, but would prefer to have the delegate method in the calling class. My current line of code is:

[captureOutput setSampleBufferDelegate:self queue:queue];

How would I specify the calling class MyAVViewController as the delegate?

Thanks!

Answer 1

You need to have an instance of your MyAVViewController, which you can pass in as the delegate:

 [captureOutput setSampleBufferDelegate:avViewController queue:queue];

You’ll have to pass your avViewController as a parameter to your helper method to achieve this:

- (void)helperMethodWithDelegate:(id<AVCaptureVideoDataOutputSampleBufferDelegate>)delegate
{
    // do stuff
    [captureOutput setSampleBufferDelegate:delegate queue:queue];
}

Make sure that your avViewController (or whatever you choose to pass in) conforms to the AVCaptureVideoDataOutputSampleBufferDelegate protocol.