[FFmpeg-user] How to compress .MOV file compatible to Canon camera

[Carl Eugen Hoyos]

Am Sa., 14. März 2020 um 20:39 Uhr schrieb Ted Park <kumowoon1025 at gmail.com>:

> >>>> Did you already test the following?
> >>>> $ ffmpeg -i MVI_1324.MOV -acodec copy -vcodec copy out.mov
> >>> Then the codec time base remains
> >> Of course.
> >>
> >> The question is if the file is still playable after remuxing.
> > It is no more playable on the camera.
> > It's about 100 kB smaller then the original with 84 MB.
>
> Maybe you should consider the possibility that it isn’t a technical limitation of the decoder capability but something else introduced by proprietary metadata or implementation detail.
>
> There’s a huge user data box in the moov, upon a quick glance it has the camera model, firmware version, etc. I have to imagine it is used somehow.

Same question:
Is the (original) file still playable if you edit this atom?

Carl Eugen