Include option to filter/replace multiple Vorbis Comment fields

[bluemoehre]

A nice option would be to strip out or replace specific fields off the meta information.
I will give some examples what i would like to:

• add some origin/copyright comment
• strip out bpm fields

Some kind of white/black listing would be nice.

[khenriks]

Could you clarify when you'd like these modifications to occur? I'm not sure also what you mean by stripping out bpm fields, since that tag information isn't preserved by the FLAC->MP3 conversion anyway.

Adjusting tags like this is something I can look into, but I'd consider our primary purpose to be full preservation of original data and metadata, since it's quite easy to use various tools to make small changes like this in the source FLACs (and have them preserved) or in the output MP3s.

[bluemoehre]

I just gave some examples without testing how it behaves at the moment.
For me it would be nice in a first step to define which fields are kept and which not.
In a second step it would be nice to set/overwrite fields.

e.g.:
(default value will be "true")
meta-cfg: {
. . // mark all files generated by mp3fs
. . origin: "mp3fs",
. . // remove DJ software stuff
. . bpm: false,
. . cuepoints: false
}

got it? =)

[khenriks]

Alright. I'll leave this up here, but I don't anticipate being able to implement this in the near future.