App crash when livestream with both RPSampleBufferType.audioApp and RPSampleBufferType.audioMic.

[hominhtuong]

I want to play a youtube video with both the audio of the video and the mic I have in it.
But if you call the function:
rtmpStreamappendSampleBuffer(sampleBuffer, withType: .audio)
with both audioApp and audioMic, the app crashes immediately and gives a memory error.
If only 1 sound is used, it works fine.
Can someone help me?