HALOutputUnit (Pt 2) confusion about surround channel mapping
HALOutputUnit (Pt 2) confusion about surround channel mapping
- Subject: HALOutputUnit (Pt 2) confusion about surround channel mapping
- From: Jean-Alexis Montignies <email@hidden>
- Date: Sat, 5 Jun 2004 20:34:43 +0200
Hello,
I have some questions with multi channel support/
I'm trying to fix vlc to make it work correctly with this feature from
panther.
Does AudioMidiSteup allows to define speaker configuration for several
formats, or is there can be only one type of speaker configuration
defined?
i.e: can you define a configuration for quad output and one for 5.1 for
a given device, or do you say that you have a 5.1 speaker
configuration?
How can you retrieve these informations? Especially the available
speaker configuration (or the one selected if only one is allowed)?
Now if you have a known channel layout (it would in fact be easier to
use a tag, as channel layouts from vlc are standards) for your
generated stream, how would you give a map to the HALOutputUnit so it
uses the speaker configuration specified in AudioMidiSetup?
As you can see, those multichannel concepts in coreaudio are not clear
for me :).
Thanks,
Jean-Alexis Montignies
http://www.sente.ch/
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