side note:
- the GPAC Team fixed the muxing of MPEG-4 ASP raw streams (
https://github.com/gpac/gpac/issues/1609), so MP4Box can be used to mux raw MPEG-4 ASP to mp4 again.
- Sadly Mosu is not interested to spend time on MPEG-4 ASP (
https://gitlab.com/mbunkus/mkvtoolni...note_425653157).