[FFmpeg-user] Extract image every x frames?

[Peter B.]

On 08/06/2012 06:25 PM, Roger Pack wrote:
>> i may be wrong but "-r 1500" might do it
> you could extract to images then select every 1500'th image.
>  -vf select='not(mod(n\,15))'
>
> might be helpful, too. "n" is frame number I...think...
> -r
>
This one looks interesting!
Will try.

Thanks,
Pb