Re: Audio Converter and Endians problem
Re: Audio Converter and Endians problem
- Subject: Re: Audio Converter and Endians problem
- From: Laurent Cerveau <email@hidden>
- Date: Wed, 29 Jan 2003 00:54:17 +0100
If this is truly an aspect of generic AIFF-C (i.e could conceviably
crop up on a file being read on an Intel platform,) it needs to be
formally documented in an external specification document, not just in
Mac developer header files. Otherwise, I have to regard it as
"undocumented". Just how public/portable is all that stuff? It is only
used for reading CDs in Macs?
Just as I see the topic, I advise anyone interested in file format to
look at the work started with Guido Van Rossum and now maintained by
Chris Bagwell on the topic:
http://home.attbi.com/~chris.bagwell/AudioFormats.html
For AIFF , the volume of Inside Mac dedicated to Sound is documenting
it pretty well (although I think there was a glitch in the example
given where a header length was not accurate for figure 1.23 like teh
ckSize of COMM chunk shoudl be 36 and not 38 ... but that's a long
time so you should double check). The book is old and in examples also
in Pascal, but there are still some pretty useful part in it . The
difference between AIFF and AIFC is also pretty clear.
http://developer.apple.com/techpubs/macosx/QuickTime/qtdevdocs/INMAC/
SOUND/imsoundmgr.36.htm#pgfId=3631
Hope this helps
Laurent
On Tuesday, January 28, 2003, at 12:07 PM, Richard Dobson wrote:
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.