This example will take an audio and video track and save it into a local file.
Quick Start
Start ion-sfu allrpc, and run pubsubtest example in your browser and you join with your web camera to add an audio/video track to the "test session" room.
Run the RTP forwarder
go run main.go -addr "localhost:5551" -session "ion"
The contents of your video or audio stream will be written into the output file. You can also convert the file to another format using FFMPEG.