Re: DigitalCDSound
Re: DigitalCDSound
- Subject: Re: DigitalCDSound
- From: Tab Julius <email@hidden>
- Date: Fri, 02 May 2003 16:13:05 -0400
Okay, thanks; I'll have to root around some more.. :)
At 04:02 PM 5/2/03, Jeff Moore wrote:
That digitalCDsound API is a Mac OS 9 thing. It doesn't exist on Mac OS X.
There is no alternative to accessing the data on an audio CD except via
the file system without diving into IOKit and the kernel. The audio CD
mounts as a volume just like any optical disk and the files are just files
at that point with the TOC data stored in a file called ".TOC.plist".
As for knowing it's an audio CD, there is probably a way to figure out
what kind of volume it is, but I don't know the API you'd call to do it.
On Friday, May 2, 2003, at 12:35 PM, Tab Julius wrote:
Hi Jeff,
I did see that via the cddafs driver you could do this, but was trying to
evaluate the best approach - going that route, or the digitalCDsound
route, if that was supported. I wasn't sure if it was an either/or
proposition, or if digitalCDsound simply doesn't apply under OS/X. You
seem to be saying it doesn't apply, which is fine.
Is it all just the regular file system at this point? Because I will
want to identify some of the characteristics of the CD, and so forth.
The older PBControl calls are obsolete, so I haven't figured out if I
just need to cobble together parts from all over the O/S or what... if
it's too transparent I'll have trouble differentiating between a regular
set of files and an audio CD. To a certain degree I need to know I'm
working with an audio CD.
Thanks
- Tab
At 03:22 PM 5/2/03, Jeff Moore wrote:
On Mac OS X, audio CDs are accessed through the file system as little
endian AIFC files.
On Friday, May 2, 2003, at 11:19 AM, Tab Julius wrote:
This is the closest forum I can find for this question (but if someone
knows of a more appropriate forum, let me know).
My question is about the DigitalCDSound implementation (.h file et al)
as referenced in TechNote 1187. Other than the tech note, there's
precious little reference to this. Has anyone ever posted an
example? Does it work in OS/X? I've looked through the archives, the
site in general, and the web in general, and can't find anything beyond
the technote.
--
Jeff Moore
Core Audio
Apple
--
Jeff Moore
Core Audio
Apple
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