The idea was of course that someone else, one with working brain could run the example script and discover the underlying issue, which is weird and more complex.
A great way to get help is to ask for it. I'd imagine the ffmpeg community would be a lot more open to helping you if you didn't start off by saying their tool is broken, though
A great way to get help is to ask for it. I'd imagine the ffmpeg community would be a lot more open to helping you if you didn't start off by saying their tool is broken, though