Re: Quartz Comp and Audio input??
Re: Quartz Comp and Audio input??
- Subject: Re: Quartz Comp and Audio input??
- From: David Duncan <email@hidden>
- Date: Tue, 11 Sep 2007 15:23:18 -0700
On Sep 11, 2007, at 2:19 PM, Trygve Inda wrote:
Well, Sound Flower seems to be able to channel the audio mix back
to a new
input that QC could read I think, but that is messy.
From what I can tell, Sound Flower is creating a new audio device
for the system that does this. This feature isn't built into Core
Audio directly, but if your willing to work inside the kernel you can
always do this yourself (if you can convince the other device to
provide the audio to your driver).
There is no built in way to get the audio being sent to any given
audio device however. Sound Flower only works because it is a device.
What I am ultimately trying to do is an audio visualizer for a QT
movie
playing in memory but not existing on disk.
I believe you can use the Audio Extraction APIs in Quicktime to get
audio out of the movie and then do whatever you wish with it. You
would have to create your own protocol to send the audio to a Quartz
Composition however.
--
David Duncan
Apple DTS Quartz and Printing
email@hidden
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