Opened 11 months ago

Last modified 11 months ago

#9348 new defect

volume=replaygain=track requires a + sign in front of positive values, but this is not standard replaygain spec

Reported by: simcc Owned by:
Priority: normal Component: ffmpeg
Version: unspecified Keywords: ReplayGain
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description (last modified by simcc)

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

Obviously the input file will need to have replay_track_gain tags with positive values for the bug to appear, i.e. nothing happens...it works as expected with negative values.

Change History (4)

comment:1 by simcc, 11 months ago

Description: modified (diff)

comment:2 by simcc, 11 months ago

Description: modified (diff)

comment:3 by simcc, 11 months ago

Description: modified (diff)

comment:4 by simcc, 11 months ago

Description: modified (diff)
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