webrtc/examples/play-from-disk-renegotiation

play-from-disk-renegotiation

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

Instructions

Download play-from-disk-renegotiation

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

Create IVF named output.ivf that contains a VP8, VP9 or AV1 track

To encode video to VP8:

ffmpeg -i $INPUT_FILE -c:v libvpx -g 30 -b:v 2M output.ivf

alternatively, to encode video to AV1 (Note: AV1 is CPU intensive, you may need to adjust -cpu-used):

ffmpeg -i $INPUT_FILE -c:v libaom-av1 -cpu-used 8 -g 30 -b:v 2M output.ivf

Or to encode video to VP9:

ffmpeg -i $INPUT_FILE -c:v libvpx-vp9 -cpu-used 4 -g 30 -b:v 2M output.ivf

If you have a VP8, VP9 or AV1 file in a different container you can use ffmpeg to mux it into IVF:

ffmpeg -i $INPUT_FILE -c:v copy -an 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.

Run play-from-disk-renegotiation

The output.ivf you created should be in the same directory as play-from-disk-renegotiation. Execute go run *.go

Open the Web UI

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