I will test now. Am testing libsvtav1 and ffmpeg.C aspect patch at the same time. If libsvtav1 works OK on Ubuntu 16 and 32-bit Debian 9.1, would it be advisable to always build it in instead of having to add it to the configure line via --enable-libsvtav1 ?
well, its up to you - I know about termux-specific patch (from termux-packages) I just need to adapt it to our build.
guess it will be good excuse to do static termux build again.
was about to suggest to try plain audio encoding via our own vorbis encoder but recognized settings were not working.
Hopefully attached patch fixes audio-only ogg native encoding param dialog.
Can you try it out?