Saving video from CMSampleBuffer while streaming using ReplayKit

Question

I\'m streaming a content of my app to my RTMP server and using RPBroadcastSampleHandler.

One of the methods is

override func processSampleBuffer(_ s         


        

Answer 1

@Marty's answer should be accepted because he pointed out the problem and its DispatchGroup solution works perfectly.
Since he used a while loop and didn't describe how to use DispatchGroups, here's the way I implemented it.

override func broadcastFinished() {
    let dispatchGroup = DispatchGroup()
    dispatchGroup.enter()
    self.writerInput.markAsFinished()
    self.writer.finishWriting {
        // Do your work to here to make video available
        dispatchGroup.leave()
    }
    dispatchGroup.wait() // <= blocks the thread here
}