Re: Hardware accelerated audio decoding?
Re: Hardware accelerated audio decoding?
- Subject: Re: Hardware accelerated audio decoding?
- From: Dan Christainsen <email@hidden>
- Date: Tue, 17 Dec 2002 16:34:36 +0100
On Monday, December 16, 2002, at 08:18 PM, Jeff Moore wrote:
Like I said, you can't use the AudioUnit to do the IO. You have to use
the HAL. There is a bit of sample code in our recent SDK that shows
this feature off (provided you have the hardware). It's installed at
/Developer/Examples/CoreAudio/HAL/HALPlayFile. The code is kind of
ugly but it gets the point across.
I couldn't get your sample application to work - no matter what I do it
exits with code 1. It seems to bail out somewhere in the file
factories. I'm running 10.2.2 with the latest devtools.
Anyway, I'm pretty sure my iMac DV (IIRC, it's the first DV model) is
the one with "enhanced AC-3 support", but the test application in
<
http://aldebaran.armory.com/~zenomt/macosx/MTCoreAudio/> only lists
linear PCM output.
Is it my mac that simply doesn't support it? I couldn't find anything
stating that other standard mac sound card should have AC-3 outputs.
- Dan Christiansen
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