[FFmpeg-trac] #10209(undetermined:new): EBUR128 and LOUDNORM filters compute LRA differently

[FFmpeg]

#10209: EBUR128 and LOUDNORM filters compute LRA differently
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             Reporter:  hsn           |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  undetermined  |                  Version:  5.1.2
             Keywords:  LRA, ebur128  |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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 Summary of the bug:
 How to reproduce:
 {{{
 ffmpeg -i song192k.mp4 -af ebur128,loudnorm=print_format=summary -f null -
 }}}
 Outputs:
 {{{
 [Parsed_ebur128_0 @ 000001f413d21a40] Summary:
   Integrated loudness:
     I:         -14.0 LUFS
     Threshold: -24.1 LUFS
   Loudness range:
     LRA:         3.6 LU
     Threshold: -33.9 LUFS
     LRA low:   -15.6 LUFS
     LRA high:  -12.0 LUFS
 [Parsed_loudnorm_1 @ 000001f413fc4e40]
 Input Integrated:    -14.2 LUFS
 Input True Peak:      +0.1 dBTP
 Input LRA:             5.9 LU
 Input Threshold:     -24.3 LUFS
 }}}
 One LRA is ''5.9'' and second is ''3.6''. Song analysed by
 https://youlean.co/file-loudness-meter/ returns:
 {{{
         Momentary Max = -9.81 LUFS
         Short Term Max = -11.50 LUFS
         Integrated = -14.00 LUFS
 }}}
 LRA definition is here: https://tech.ebu.ch/docs/tech/tech3342v2_0.pdf
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10209>
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