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Re: Quick question on configuring an AU for a certain channel config
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Re: Quick question on configuring an AU for a certain channel config

Hi tahome,

the pointer thing is something that I found out while testing around the same problem with HasInput() (that it always returned TRUE).
It still looks strange to me, but in my case it worked, so I used it. Just a workaround.

This way did not work with AudioBufferLists in my AU.

I use GetChannelData() instead of the GetBufferList().

Bernd

Am 20.12.2007 um 14:07 schrieb tahome izwah:

Bill and Bernd, thank you! It looks indeed like a bug in Logic 8 to me.

Bernd, I tried something similar to what you are suggesting, like
comparing the pointer to the audio data in the ABLs that I get from
the side chain and the main input (ie sideChainAbl->mBuffer[0].mData
!= inputAbl->mBuffer[0].mData). They appear to be different so there's
no telling if the sidechain is connected or not. I did not use
GetChannelData(), however, I might give this a try, even though I'm
not sure what difference it would make (it should point to the same
data, right?).

I am curious - how do you know the two pointers have to be the same in
Logic if the sidechain is not connected? Ie. what is the logic behind
this - is this just something you discovered empirically or is this
documented somewhere? Is it guaranteed to work? I mean, Logic could as
well use some pre-set buffer containing silence for an unconnected
sidechain, couldn't it?

Thanks again,
--th



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References: 
 >Re: Quick question on configuring an AU for a certain channel config (From: "Sophia Poirier [dfx]" <email@hidden>)
 >Re: Quick question on configuring an AU for a certain channel config (From: "tahome izwah" <email@hidden>)
 >Re: Quick question on configuring an AU for a certain channel config (From: "tahome izwah" <email@hidden>)
 >Re: Quick question on configuring an AU for a certain channel config (From: William Stewart <email@hidden>)
 >Re: Quick question on configuring an AU for a certain channel config (From: William Stewart <email@hidden>)
 >Re: Quick question on configuring an AU for a certain channel config (From: "tahome izwah" <email@hidden>)



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