BBB streaming without Xorg and Pulseaudio and Chromium and other nonsense (heavily WIP)

Overview

BBB Streamer NG?

Makes a conference like this...

...streamable like this!

I also recorded a small video showing the basic features: https://www.youtube.com/watch?v=u9pTmzowIPc

Big Blue Button streaming without pressing a virtual camera against a remote controlled webbrowser..

Heavily work-in-progress, but kinda functional.

The whiteboard is definitively the hardest part to get right. Everything else just kinda depends on gstreamer not breaking every 5 minutes :D

Example usage: python test.py your.bbb.server room-id-from-greenlight rtmp://server/app/path?auth=foobar

Or alternatively docker run -t -i --rm=true lukas2511/bbb-streaming your.bbb.server room-id-from-greenlight rtmp://server/app/path?auth=foobar

Working:

  • Capturing audio
  • Capturing all cameras
  • Capturing screen captures
  • Generating presentation canvas (including annotations) and converting it into an internal video stream
  • Automatic switching between presentation and screenshare
  • Simple side-by-side scene with exactly 1 active webcam and the presentation/screenshare
  • Tracking camera of active speaker
  • Background image for streams
  • Selection of multiple scenes (side-by-side, fullscreen cam/presentation) using chat commands (!view <sbs|pip|cam|pres>)

Output is streamed using rtmp for now. How this is implemented will probably change.

Todo:

  • Fixing the gstreamer webrtc video glitches (recovery on packetloss is b0rked, currently enabling slight fec and requesting a keyframe every second)
  • Support different camera selections (follow-speaking/follow-presenter/manual selection)
  • Lots of error handling + recovery foo
  • Finishing the todo list
Owner
Lukas Schauer
Student, Hacker, Cyber
Lukas Schauer
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