[FFmpeg-user] How to speed up thumbnail generation for video files using FFMPEG on MIPS
Carl Eugen Hoyos
cehoyos at ag.or.at
Mon Jul 9 13:18:44 CEST 2012
Pavan Kulkarni <pavanvkbgm <at> gmail.com> writes:
> There are also a few errors/warnings. How can I resolve those?
Why do you want to resolve them / which errors/warning are you
> However, the problem where I used to get a blank thumbnail
> when select filter was not used is resolved by migrating
> to the newer version of FFMPEG.
This sentence tells me that seeking works fine now.
> As an aside, Perhaps if I can get an option/combination of options in
> ffmpeg where in I can seek to x seconds quickly and then search for the
> closest I frame, then maybe I can get the thumbnail quicker?
Doesn't your sentence above indicate that this problem is already solved?
> Thanks a lot for the help so far!
> time ./ffmpeg -ss 18 -i Pirates_remux_short.ts -an -s 150x100 thumb12.jpg
I strongly suspect you are comparing apples with prunes here...
$ time ./ffmpeg -i Pirates_remux_short.ts thumphd.jpg
$ time ./ffmpeg -ss 18 -i Pirates_remux_short.ts thumphd2.jpg
Does the first take ~10 seconds, the second <12?
More information about the ffmpeg-user