Bonjour, tout d'abord un grand merci pour MP4Box - ça a l'air de marcher bien mieux que ffmpeg pour simplement facilement concatener quelques *.m4v.
May I propose an additional feature that I'm missing: It would be cool if when doing "MP4Box -cat first.m4v -cat second.m4v -new merged.mp4" one could simply request -chapters, and that would automatically create chapter markers between first & second.
I understand may could probably somehow achieve this manually by using -chap and a chap_file created from analyzing the length of first.m4v etc. but a built-in easy option doing this would be very cool.
Merci,
Michael (http://www.vorburger.ch)
https://twitter.com/sverrirsigm/status/820371196411777026 => https://github.com/sverrirs/mp4combine - thanks! Although I'll admit that I long ago totally forgot about this... ;-)