Re: CAPlayThrough crashes
Re: CAPlayThrough crashes
- Subject: Re: CAPlayThrough crashes
- From: William Stewart <email@hidden>
- Date: Mon, 26 Oct 2009 14:40:44 -0700
Hi Eddie
We were just checking this ourselves as well, and we believe that this
is the problem you are reporting (we don't need a bug report at this
time for this)
Here's a direct link
http://developer.apple.com/mac/library/qa/qa2009/qa1665.html
The CARingBuffer is a part of the Public Utility code that is
distributed with XCode, so we update it with those releases.
Bill
On Oct 26, 2009, at 12:11 PM, eddie vanson wrote:
A kind lister mailed me offlist and recommended that I download and
install the updated CARingBuffer code, and that fixed the crashing.
(See "Technical Q&A QA1665" for details)
I'll file a bug if you still think it's necessary. However this
raises the question, how does one stay on top of these updates? The
downloads section of the Audio Developer Page only has old (circa
2005) CoreAudio SDKs available. Is there somewhere critical updates
like the CARingBuffer are gathered together?
eddie
----- Original Message ----
From: William Stewart <email@hidden>
To: eddie vanson <email@hidden>
Cc: email@hidden
Sent: Mon, October 26, 2009 11:15:57 AM
Subject: Re: CAPlayThrough crashes
if you could file a bug report that would be helpful
Thanks
On Oct 25, 2009, at 11:12 PM, eddie vanson wrote:
I downloaded the CAPlayThrough sample code to play with and
immediately ran into a problem. Very soon after hitting the start
button, it crashes in a memcpy call in a thread other than the main
thread.
The top of stack crawl looks like this:
_memcpy
StoreABL
CARingBuffer::Store
CAPlayThrough::InputProc
This happens for built-in input/output and for built-in input and
Firewire interface output. I'm on a MacBook Pro (unibody with
removable battery) running 10.6.1.
Presumably CAPlayThrough works for most people, 'cause a quick
Google didn't turn up any big problems. Curiously, searching for
"CAPlayThrough" on the Apple list search page resulted in zero
results, even though CAPlayThrough has been discussed here recently.
TIA,
eddie
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