If I run Broadcast Upload Extension scheme,
- (void)processSampleBuffer:(CMSampleBufferRef)sampleBuffer withType:(RPSampleBufferType)sampleBufferType
Get it sampleBuffer.
but if I run application scheme, Broadcast Upload Extension is not working.
Why can't I get sampleBuffer?
Broadcast Upload Extension runs as different process name:replayKit on your case. This process runs when you start recording.
Follow this step for start recording. https://support.apple.com/en-us/HT207935
If you want to break at breakpoint, Xcode -> Debug -> Attach process by PID or Name... -> specify Broadcast Upload Extension name:"replayKit"