Output AU render callback requirements
Output AU render callback requirements
- Subject: Output AU render callback requirements
- From: "Tim Dorcey" <email@hidden>
- Date: Mon, 06 Mar 2006 16:05:20 -0800
- Importance: Normal
I am using the standard output unit to play compressed audio. Currently, I
decompress the audio in a different thread, and my render callback
(kAudioUnitProperty_SetRenderCallback) pretty much just does a mem copy to
deliver data to the output unit.
Now, I see it would be handier if I did the decompression within the render
callback. Is there any problem with this? Does the Output AU fetch enough
ahead that it won't run dry if the render callback takes a bit of time? The
codec is not terribly complicated, I think somewhere on the order of 25
floating point multiplies per sample.
Thanks,
Tim
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