synchronized(self) {
}

doesnt exist in Swift 3.0

This magical wizardry of a port has been a hugely valuable learning tool. Thank you for putting this together, I struggle with the documentation when dealing with AVCapture like this - your code has been so helpful

Is there any chance you could guide me on how I would use the OpenGL renderer to write text on each CVPixelBuffer? I want to make a video timer as my end goal. I have it working with CIFilter Image Composite but the performance hit of drawing the UIImage of a UILabel is making it look like a not ideal solution - if I could purely use OpenGL I am hoping I could get better performance.