src/videofilters/nowebcam.c: Build failure without ffmpeg or jpeg
There is a build failure in src/videofilters/nowebcam.c if mediastreamer2 is built without ffmpeg or jpeg because jpeg2yuv is only defined if ffmpeg or turbojpeg is available.
I can't fork the repository to send a merge request so you can retrieve the patch here: https://git.buildroot.net/buildroot/tree/package/mediastreamer/0001-src-videofilters-nowebcam.c-fix-build-without-ffmpeg.patch. If needed, I can also attach the patch to this issue.