[FFmpeg-devel] [PATCH 4/8] metadata: add callbacks to conversion system.

[Anton Khirnov]

On Tue, Aug 24, 2010 at 02:00:02PM +0200, Michael Niedermayer wrote:
> 
> > 
> > luckily we don't have to, as all the formats i know of have a set of
> > standard tags that everybody uses => the problem you're proposing
> > doesn't exist. or do you have an example of a real existing issue
> > related to this?
> 
> id3v2 has
> composer,performer,lyricist,involved people list,original artist/performer
> original lyricist, lead pereformer, publisher
> 
> which of these would be mapped to author depends on what of them is set
> also if its converted to a format that supports generic tags all information
> should be preserved and at the same time standard fields maybe should be
> filled like author. After that you have a file that can have author and artist
> set
Err no, only TPE1 ever gets mapped to artist, since this is what
everybody agrees on. I'm yet to see a file which has another artist-like
tag set, but not artist/TPE1. So the problem you're proposing still
looks purely imaginary to me, and I don't really feel like designing a
new complicated conversion system because of the issues that don't
exist.

And in any case, I don't why is this delaying my patch, this system
you're proposing is mostly orthogonal to callbacks.

--
Anton Khirnov
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