Am 28.12.2015 um 20:12 schrieb chovy:
That's what I tried. But got an error.

well, that was missing in your initial post

http://www.catb.org/esr/faqs/smart-questions.html#beprecise helps a lot because it saves answers "try this and that" when you already tried "this and that"

I needed -update 1

-------- Original Message --------
Subject: Re: [FFmpeg-user] generate a poster image with ffmpeg
Local Time: December 28 2015 3:07 am
UTC Time: December 28 2015 11:07 am
From: [email protected]
To: [email protected]



Am 28.12.2015 um 11:55 schrieb chovy:
I'm using this command with ffmpeg to generate a poster image every 60 seconds 
(it works as expected).

-vf fps=1/60 "${path}/poster%03d.png"

I would like to however just overwrite poster.png every time instead of 
creating a unique filename for each image.

so just replace "poster%03d.png" with that filename

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