Command line ReplayGain

[ghost]

I see that ReplayGain can be set with Ex Falso via the "Replay Gain" plugin.

However I am trying to set it via command line with Operon. Is this possible?

[lazka]

It should work.

I just noticed that "operon tags" doesn't list programmatic tags, we should add a "-a --all" switch there like with "operon list"

[ghost]

@lazka thanks for fast reply. Will you please provide example command for setting ReplayGain?

[lazka]

Hm right, it would be operon set replaygain_track_gain "-12.345 db" a.mp3, but it fails because the value stars with "-".

[ghost]

and how would you aquire the -12.345 db? Can we do command line ReplayGain scanning?

[lazka]

operon just does tagging, nothing more atm.

This looks like something you want, but haven't tried: https://pypi.python.org/pypi/rgain

[lazka]

(note for myself, OptionParser.disable_interspersed_args should help with the ambiguity for values at least..)

[ghost]

I guess this is a feature request then. I see you use BS1770GAIN internally:

https://github.com/quodlibet/quodlibet/blob/20ad20d/quodlibet/quodlibet/ext/songsmenu/replaygain.py#L152-L162

So the desired functionality would be: similar to how BS1770GAIN can scan and set ReplayGain from the command line, Operon could scan and set ReplayGain from the command line

[lazka]

In Quod Libet we use the GStreamer replaygain implementation. It's unlikely that we will expand our GUI plugins to operon.

I've opened #2339 for the value problem.