Re: Re: AU N to M channels guideline (and Validation tool)
Re: Re: AU N to M channels guideline (and Validation tool)
- Subject: Re: Re: AU N to M channels guideline (and Validation tool)
- From: "christian schneider" <email@hidden>
- Date: Fri, 3 Oct 2003 11:56:34 +0100
thank you marc
specially for the tip regarding the stream formats and CreateElements. Whatever i did, SupportedNumChannels() never got called by DP4.1.
i was able to basically understand the generic au-example code in 5 minutes, but i do not want or need to do stereo stuff, because everything has already been done 5 times better than i ever will be able to. I guess i just have to wait another year for the appearance of some true modular hosts (like Bidule) that support AU's.
i'll try to get the MAS SDK because DP4.1 looks quite nice and logic, and the multichannel support looks somewhat stable, compared to other commercial major lable hosts i checked out.
christian
======= At 2003-10-01, 16:44:00 you wrote: =======
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No, it is possible. You need to support the SupportedNumChannels
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property. Override AUBase::SupportedNumChannels(). And also, when
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creating your AU, set the input and output stream formats to the default
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format that you want. You can call CreateElements() first to make sure
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that those elements are available.
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But you're right that host support for that sort of channel setup is the
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main problem that you're going to face...
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Marc
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On Mon, 29 Sep 2003, christian schneider wrote:
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> no response must be interpreted that it is not possible to build audio
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> units with not the same number of input and output channels?
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> ======= At 2003-09-28, 19:14:00 you wrote: =======
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> >Hi
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> >
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> >As many things are not yet routine (for AU dev and AU hosting) please
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> >allow me this question:
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> >
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> >What are the necessary steps (and in what order must they be performed)
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> >that an audiounit can provide e.g. 2 channels input and 12 channels
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> >output (not the same number of channels for in and output, so that i
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> >can see e.g. (mono to 5.1, stereo to 10.2)). Since a few days, i'm
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> >trying to implement an AU just with this option and now i'm lost. In
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> >lack of a few different hosts supporting this feauture (and of course,
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> >the validation tool) i only can check my AU in DP4.1. Maybe now my code
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> >is right, but DP4.1 cannot handle multichannel AU's. So, when can i be
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> >sure, that it's the host and not my plug causing it not to show up as i
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> >expect it should. Some clear light on this topic would certainly be
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> >good for the archive, too.
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> >
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> >Thank you
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> >
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> >christian
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= = = = = = = = = = = = = = = = = = = =
Best regards.
christian schneider
email@hidden
2003-10-03
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