try this site first:
http://qtcomponents.sourceforge.net/
I don't think they have flac yet, but they were the ones working on
vorbis for quicktime (and thus iTunes)... and someone started a speex
project there too. If someone would volunteer to add a flac component,
I'm sure it would happen. Check their user support forums... there has
been interest for a flac component. This is probably where such a
plugin should come from... it's semi-official yet open source. If you
have programming skills, consider joining the project!
other places to check:
The videolan client supports most of the xiph projects (among other
things)... they're open source so you could see how they got things
working on OS X and PPC. vlc is what the quicktime player would be if
it worked on linux, and vlc handles lots of those odd codecs that
quicktime struggles with.
http://www.videolan.org/
Or ask this guy, he wrote a flac encoder with a Mac interface. Last
time I checked, it didn't support flac playback:
http://www.danrules.com/macflac/
Some of the people behind the whamb player might be interested. Their
player is the only one I know of for the mac that handles ogg streams.
http://www.whamb.com/?heading=aboutus&lang=en
Flac is really cool... I imagine it would be popular with pro-audio
types. If EMagic's Logic and their sampler (EXS24) supported it, or
Apple's tools like Final Cut Pro, DVD Studio Pro and Soundtrack worked
with the format, it would really catch on.
