External sources for watermarks on streams

[iKennyGit]

Would it be greate to have possibility to add watermarks on camera's feed in frigate with content from external source.
For example, i have arduino with very simple web ui where are temperatures and some other sensors values. It would be greate for me if it would be possible to add values of some sensors on video streams. Like time and date on video, but, for example temperatures or windspeed

[NickM-27]

this require re-encoding the stream which is very computationally expensive. Some users have used the cameras APIs to do this on the camera side

[hawkeye217]

As Nick said, this is very computationally expensive. But it can be accomplished with drawtext in go2rtc: https://github.com/AlexxIT/go2rtc?tab=readme-ov-file#source-ffmpeg