[Flac] FLAC and ID3

[Ron Cococcia]

> ID3 support was only dropped in the plugins.  libFLAC still can
> decode FLAC files that have ID3 tags (v1 or v2).  it just ignores
> them and there are no plans to change that in the future.

OK, that's what I thought, but wanted to be sure.  I've been updating 
some metadata handling routines in our application and heard something 
about this and was curious.

> the spec still does not require compliant implementations to
> support ID3 on FLAC, so other apps may choke.  unless you're
> really tied to ID3 for some reason it's safer to migrate.
> are you using it for something that FLAC metadata doesn't
> have?

Besides the album art data (JPG files which are currently stored in 
ID3v2 APIC tags), everything else can be stored as vorbis comments. 
Since I haven't kept myself up-to-date with FLAC, were there things 
added recently to it that might support this?

I have the application update both ID3 and vorbis comments when metadata 
changes.  It became a problem because of a compatibility issue between 
versions of our application, where the older versions don't look at the 
vorbis comments at all.  If ID3 tags were to become unusable on FLAC 
files there might have been some extra work to do on my end (which isn't 
really a big deal).

Thanks Josh!