[MPlayer-users] How to grab two different frames at 1 and 2 seconds.

[RC]

On Sun, 28 Oct 2007 00:01:12 +0900
"PaulM" <paulm at uusoftware.com> wrote:

> I assume I should get 4 different frames at positions 1,2,3 and 4. But
> that's wrong. For some reason I got the same frames which are
> absolutely equal. I got a different frame starting from 5th second
> only. Why is it so? 

Because -ss can only seek to the nearest keyframe, and your video file
has one keyframe every 5 seconds or so.

You can use something like -vf framestep to approximate what you want.