@mos_8502 there's an OBS plug-in to stream directly from it if you haven't found it yet.
https://github.com/chrisgleissner/c64stream 
GitHub - chrisgleissner/c64stream: C64 Stream is an OBS Studio source plugin for streaming video and audio from Commodore 64 Ultimate devices
C64 Stream is an OBS Studio source plugin for streaming video and audio from Commodore 64 Ultimate devices - chrisgleissner/c64stream
Steve Luzynski