Re: DigitalCDSound
Re: DigitalCDSound
- Subject: Re: DigitalCDSound
- From: Garth Cummings <email@hidden>
- Date: Mon, 5 May 2003 09:10:23 -0700
Hi Tab,
FYI, DTS has published sample code showing how to get track information
from an audio CD on Mac OS X:
AudioCDSample
<
http://developer.apple.com/samplecode/Sample_Code/
Devices_and_Hardware/CD_ROM/AudioCDSample.htm>.
The sample does not show how to play the audio from the disc. But, as
Jeff pointed out, one would simply open the track as a file and pass
the data to CoreAudio or QuickTime for playback.
Hope this helps,
--gc
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
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