[FFmpeg-user] Feature improvement request for 'geq' filter to support functions

[Lee Mitchell]

Hi, Paul.

First, thanks for the advice.
Erm..thing is that I totally don't understand what you are saying as dumb.
You mean, the expression should be...
[1:v]geq=r='r(X,Y)':a='if(between(t\,0\,9),alpha(X,Y),0)'[alpha]; ?? which
is not working.
Could you show me the exact syntax for me?

2024년 6월 3일 (월) 오후 3:17, Lee Mitchell <npdmailing at gmail.com>님이 작성:

> Hi.
>
> When I use filter_complex syntax below, I get an error that cannot proceed.
> "-filter_complex
> "[1:v]geq=r='r(X,Y)':a='if(between(t,0,9),alpha(X,Y),0)'[alpha];"
> then
> " Unknown function in 't,0,9),alpha(X,Y),0)'"
> Seems geq filter not support generic function parsing.
> Please look into it.
>
> Have a good day.
>