Re: reading a track and its subchannel data
Re: reading a track and its subchannel data
- Subject: Re: reading a track and its subchannel data
- From: Stephen Davis <email@hidden>
- Date: Sun, 6 Jun 2004 21:01:42 -0700
This is not actually a CoreAudio question but is in fact a file system
question. The answers to your steps one and two can be found here:
http://developer.apple.com/samplecode/AudioCDSample/AudioCDSample.html
I know that it is possible to read the subcode data but I do not know
if there is any documentation on how to do so. You may want to look
through the IOKit Framework headers in the "storage" category and see
if there is any information there.
hope that helps,
stephen
On Jun 6, 2004, at 8:16 PM, Benjamin Dunton wrote:
Hello,
I am writing a program that I need to read an audio track and its P -
W subcode data. I have successfully read the subchannel data from a
sector, and was wondering the best way to read a track from an audio
CD using Core Audio.
This is what I want to do:
1) Read in the tracks from an audio CD one at a time.
2) Determine the length (in seconds) of each track
3) Read in all the subcode data (96 bytes per sector * 75 sectors per
second * total number of seconds in the track)
Steps one and two are what I am looking for help on. I am a newbie to
the Core Audio SDK, so please forgive me if this is a trivial
quesiton.
Thanks Ahead of Time,
Ben Dunton
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