[FFmpeg-user] continues/periodic volume detection

Albert Scholtalbers compuvision.sr at gmail.com
Fri Dec 21 17:11:02 CET 2012

> So you want something of a rolling volume detection?
> Maybe volumedetect could have an "output every x seconds" option
> added, or ashowinfo could be modified slightly?
> -r

Yup, just like: ffmpeg -i input.mpg -f image2 -vf fps=fps=1 out.png creates
a file out.png every second.
So I would like something like
Yup, just like: ffmpeg -i <input stream> -f volumedetect -vf fps=fps=1/60
report.txt creates a file out reportfile with values every minute you could
process, like remote/automated monitoring of audio levels. Very useful if
somebody pulled an audio cable, or used the wrong slider on an audio mixer.

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