[FFmpeg-trac] #9347(ffmpeg:new): volume=replaygain=track requires a + sign in front of positive values, but this is not standard replaygain spec
FFmpeg
trac at avcodec.org
Sun Jul 25 04:07:18 EEST 2021
#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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