MP4 file format "Edits" Box uses different timescale for media start time

[3CHosler]

MP4 edit list atoms('moov'/'trak'/'edts'/'elst') contain a table of edits, each with three entries. The entries are, loosely, duration, start, speed.

• duration is given in movie timescale units(listed in 'moov'/'mvhd')
• start is given in media timescale units(listed in 'moov'/'trak'/'mdia'/'mdhd')
• speed is a unitless fixed-point number

I think that mediainfo's --details=1 human-readable output presents start using the same units as duration, as opposed to the timescale given in the track's media header.
The fix for this may require some inconvenient, out-of-order precessing. An alternate solution would be to present this value using some unit like "ticks" instead of converting to seconds.

[JeromeMartinez]

There is PR on the way for fixing that.