[FFmpeg-trac] #10841(avfilter:new): Set a sliding window with a value other than 100 ms in ebur128 filter

FFmpeg trac at avcodec.org
Fri Feb 9 16:09:22 EET 2024


#10841: Set a sliding window with a value other than 100 ms in ebur128 filter
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             Reporter:  Aaron        |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avfilter
              Version:  6.1          |               Resolution:
             Keywords:  ebur128      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Aaron):

 Replying to [comment:1 Marton Balint]:
 > The 100ms actually comes from the way momentary loudness is calculated,
 which is using 400ms sliding windows with 75% overlap. It is defined in
 the relevant papers. So something other than this might be possible, but
 would not be standard compliant... Therefore this likely won't be
 implemented.
 Yes, but ffmpeg ebur128 is based on https://github.com/jiixyj/libebur128/,
 which has the ability to set loudness window. So it would be nice to be
 able to customize it.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10841#comment:2>
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