[FFmpeg-user] feedback filter

Michael Koch astroelectronic at t-online.de
Mon Apr 18 21:13:41 EEST 2022

Am 18.04.2022 um 20:00 schrieb Michael Koch:
> Hello,
> I'm just testing the new feedback filter with this command line:
> ffmpeg -i test.jpg -vf 
> "[in][fb_in]feedback=x=2000:y=1000:w=2000:h=2000[out][fb_out];[fb_out]gblur=50[fb_in]" 
> -map "[out]" -y out.jpg
> I get this error message:
> Output with label 'out' does not exist in any defined filter graph, or 
> was already used elsewhere.

I found my error. Simple filtergraph instead of complex filtergraph. It 
would be nice if the feedback filter would give a warning. The error 
message that I got was misleading.


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