[Vorbis] .ogg extension and Theora

[Arc Riley]

<Pine.LNX.4.44.0406171604550.962-100000 at sasami.anime.net>
Message-ID: <20040617234750.GD17559 at xiph.org>

On Thu, Jun 17, 2004 at 04:13:06PM -0700, Dan Hollis wrote:
>
> Well also consider this problem. User has a filesystem filled with ogg
> files. Maybe a couple hundred. Some example filenames.
>
> bingo.ogg
> duality.ogg
> elite.ogg
> fivestars.ogg
> rainbow.ogg
> science.ogg
> the_doors.ogg
> the_police_-_every_breath_you_take.ogg
> the_code.ogg
>
> Now quickly move all video files to /video/ and all audio files to /audio/
>
> Now how would a newbie easily do this?
>
> I know that *I*, the experienced unix user can cook up a script with
> file/xargs/etc, but your typical novice user (windows or not) will never
> be able to.

Using your example, how would one catagorize a file that was part
audio-only, part video-only?  What if it contained almost all audio but
had a single still-frame attached to it?  Does that change the
extension?  What if the user wants this included in their audio
directory, but because of some "standard rule" it became a video file
because of a single frame of MNG or a little (optional) text?

Prehaps someone could write a simple tool, ie ogginfo, with flags which
report only which codecs are being used by a specific file.  That way
someone could build their own rules for how they want to sort it.  Or
someone could write a simple "move all" or "make these icons" script
based on py-ogg2 which allows the user to script the behavior they
really want?

This would be much cleaner than trying to fit every file into a limited
set of possible "use" extensions, especially since it'll be possible
(and typical) for files to contain multiple codecs, multiple ways,
chained different ways, etc.