On Sun, Apr 10, 2022 at 7:28 AM Steve Russell <[email protected]> wrote: > > I bought an HD webcam during the pandemic and it's been pretty good except > the colours were a bit off. I finally decided to try and do something about > it. The app I use most with it (Zoom) doesn't offer any way to tweak the > camera settings so, after a search, I found that FFmpeg can do the job. If I > run this command: > > ffmpeg-5.0.1-full_build\bin\ffmpeg -f dshow -show_video_device_dialog true -i > video="HD Web Camera" > > I get a dialog that lets me change several settings. Simply dropping the > saturation down to about 60 does the trick but the change doesn't stick - I > assume Zoom is resetting the camera when it starts up. To avoid having to > manually set the saturation as above, it would be great to have a command > line to change the setting. I've experimented with: > > ffmpeg-5.0.1-full_build\bin\ffmpeg -f dshow -i video="HD Web Camera" -vf > eq=saturation=0.6 output > > but this runs without changing the appearance in Zoom. I'm guessing that this > is because I'm putting the filter in between the camera and "output" rather > than changing the device settings directly. > > I've dug around in the documentation but find it somewhat overwhelming and > don't really know where to start looking. Any pointers gratefully received!
There are some filters that support settings but apparently it's hit or miss https://stackoverflow.com/a/27931102/32453 you can try the video_device_load and video_device_save params, if they work it works, otherwise you're kind of stuck. Good luck! _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
