[FFmpeg-user] Upgrade from FFMPEG Older to Newer Issues

[Carl Eugen Hoyos]

Reindl Harald <h.reindl <at> thelounge.net> writes:

> > All were doing is automating this command:
> > 
> > ffmpeg  -i <input> -s 320x240 -y -f image2 -vframes 1 <output jpeg file>
> 
> ffmpeg -i 'source.flv' -y -f 'mjpeg' -vframes '1' -vf 'scale=320:240' 'out.jpg'

For "-vframes 1", -f mjpeg and -f image2 make no difference
(both produce identical output), -s 320x240 does the same as 
-vf 'scale=320:240' (in above command line, it may make a 
difference if other filters are also used).

Carl Eugen