[FFmpeg-trac] #9347(ffmpeg:new): volume=replaygain=track requires a + sign in front of positive values, but this is not standard replaygain spec

[FFmpeg]

#9347: volume=replaygain=track requires a + sign  in front of positive values, but
this is not standard replaygain spec
-------------------------------------+-------------------------------------
             Reporter:  simcc        |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  ffmpeg       |                  Version:
                                     |  unspecified
             Keywords:  ReplayGain   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 The RGv2 specification clearly mentions the format of the tags, and it
 should not contain a '+' char. Try any files with replay_track_gain tags
 with positive values, i.e. 9.70 will not work, but if you adjust the
 metadata manually to +9.70, then it does work.
 How to reproduce:
 {{{
 % ffmpeg -i input.m4a -af volume=replaygain=track output.m4a

 ffmpeg -i input.mp4 -c:v copy -af volume=replaygain=track output.mp4

 etc.


 ffmpeg version 4.4
 built on OSX w/ homebrew
 }}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/9347>
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