[FFmpeg-user] Use cropdetect only every xth frame

[Paul B Mahol]

On 10/9/13, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Gerion Entrup <gerion.entrup <at> t-online.de> writes:
>
>> > The select filter should allow you to do this.
>> I think, this is not in the way I want it, because
>> ffmpeg decodes every frame and then drop it (or is
>> this wrong?).
>
> You can use -skip_frame (see the documentation).

I think user wants to use 'enable' option within cropdetect.

>
> Carl Eugen
>
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