play-from-disk-renegotiation demonstrates Pion WebRTC's renegotiation abilities.
For a simpler example of playing a file from disk we also have examples/play-from-disk
This example requires you to clone the repo since it is serving static HTML.
git clone https://github.com/pion/webrtc.git
cd webrtc/examples/play-from-disk-renegotiation
ffmpeg -i $INPUT_FILE -g 30 -b:v 2M output.ivf
Note: In the ffmpeg command, the argument -b:v 2M specifies the video bitrate to be 2 megabits per second. We provide this default value to produce decent video quality, but if you experience problems with this configuration (such as dropped frames etc.), you can decrease this. See the ffmpeg documentation for more information on the format of the value.
The output.ivf you created should be in the same directory as play-from-disk-renegotiation. Execute go run *.go
Open http://localhost:8080 and you should have a Add Track and Remove Track button. Press these to add as many tracks as you want, or to remove as many as you wish.
Congrats, you have used Pion WebRTC! Now start building something cool