[FFmpeg-user] "-acodec copy -vcodec copy" output smaller than original

Carl Eugen Hoyos ceffmpeg at gmail.com
Fri Sep 16 20:46:13 EEST 2016

2016-09-16 7:25 GMT+02:00 Olexandr Melnyk <omelnyk at gmail.com>:
> Howdy, my intention is to split a big video file into smaller chunks for
> more convenient storage and transfer.

Depending on what "storage" means, FFmpeg may not be the
right tool for this (rar probably is but I don't use it so I don't know).

I suspect the input file is muxed with a very large overhead (it
contains areas of "0"), MP4Box may be able to tell.

Losing metadata is generally unavoidable.

Carl Eugen

More information about the ffmpeg-user mailing list