How can set the audio codec OPUS in Android Gocoder sdk

Wowza Streaming Engine
1

I stream video by Gocoder, and play by webrtc on web, but audio not coming, because AAC do not support on WebRTC.

So, how can set audio codec to OPUS when I publish stream by gocoder

2

At this time, Wowza Streaming Engine doesn’t support ingest or playback of WebRTC streams on mobile platforms or in a live repeater (origin/edge) configuration.

If you’d like to stream with a different video source, here is how to do it:

https://www.wowza.com/docs/how-to-use-webrtc-with-wowza-streaming-engine