Convert MP4 Version - FFmpeg

Question

I have two mp4 File :

1. out.mp4: ISO Media, MP4 Base Media v1 [IS0 14496-12:2003]
2. video/rio2016/finale/brasse/200.mp4: ISO Media, MP4 v2 [ISO 14496-14]

How can I convert 1 to 2 (mp41 to mp42) ?

Thanks !

Answer 1

Using ffmpeg, it's

ffmpeg -i out.mp4 -c copy -map 0 -brand mp42 out2.mp4