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.

Michael
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