[FFmpeg-user] H.264 to jpeg thumbnail

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Sep 9 17:09:33 CEST 2015

Moritz Barsnick <barsnick <at> gmx.net> writes:

> $ ffmpeg -i clock.ts -t 2 clock.%04d.jpg

As said, this should be tested with -threads 1


> I claim that this "problem" exists in the source 
> file. Unless VLC and mplayer have a demuxing problem 
> common with ffmpeg.

Unfortunately, all open source video players use 
the same (known to be broken) code for H264 timestamps, 
so there may very well be an issue unrelated to 
demuxing but related to libavcodec.

Carl Eugen

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