[ID3 Dev] ID3 tag and audio file formats

[Aaron VonderHaar]

Why not consider ID3 a separate container format, which has the
following structure:

  <id3v2 tag>  <data>

The "data" could perhaps be an ogg vorbis "file" or wav, mod, aac,
midi-- anything, but the file on disk would contain the tag
concatenated with the audio data, the same as with tagged mp3 (and
flac with id3).

Of course for this to work your application would have to be modified
recognize the tags and to start decoding audio at the data section,
but this would likely be trivial for any application that already
supports id3 for mp3 files.

This seems like a good way to go, since it makes id3 a metadata layer
that's independant of the audio format.

--Aaron V.

On 01/03/06, Scott Wheeler <wheeler at kde.org> wrote:
>
> If you add an ID3 tag to an Ogg Vorbis file (assuming that you don't embed it
> in the bitstream, which would be possible, but silly) you've just corrupted
> that file.  Software *should not* recognize ID3 tags stuck onto Ogg Vorbis
> files.
>
> Ogg, like AVI or QuickTime, is a container format.  Data in Ogg files has to
> be split into packets / pages and included at the proper place in the Ogg
> bitstream.  You can't just add data to the beginning or end at random the way
> that you can in MP3 files.
>
> -Scott
>
> --
> I mean, if 10 years from now, when you are doing something quick and dirty,
> you suddenly visualize that I am looking over your shoulders and say to
> yourself, "Dijkstra would not have liked this", well that would be enough
> immortality for me.
> -E. W. Dijkstra
>
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