Re: Audio Unit ioConfigs
Re: Audio Unit ioConfigs
- Subject: Re: Audio Unit ioConfigs
- From: William Stewart <email@hidden>
- Date: Mon, 14 Dec 2009 19:31:08 -0800
On Dec 14, 2009, at 8:08 AM, tahome izwah wrote:
I don't think that you can prevent this from happening - at least I
never found a way to do it. Also, in order for a [1, 2] config to work
you need to support [2, 2] as well, otherwise your AU will crash on
init.
huh? This is the first I've heard of this and there are a number of
audio units that do [1,2] and [2,2] configs. Where is the crash? Have
you filed a bug report on this? If you haven't please do with a
reproducible case if possible. Thanks.
--th
2009/12/14 Chris Santoro <email@hidden>:
I'm trying to implement an audio unit (type aufx) with the ability
for
mono->stereo and stereo->stereo, but NOT mono->mono.
ok, so what you have below is correct.
My AU subclasses from AUMIDIEffectBase and properly overrides the
SupportedNumChannels function.
ok
If I run the AU Validation tool on it, it shows the proper channel
handling
capabilities.
right
//-------------------------------------------------------
Reported Channel Capabilities (explicit):
[1, 2] [2, 2]
Input/Output Channel Handling:
1-1 1-2 1-4 1-5 1-6 1-7 1-8 2-2 2-4 2-5 2-6 2-7
2-8 4-4 4-5 5-5 6-6 7-7 8-8
X X
//-------------------------------------------------------
However, both AULab and Logic 8 show a mono->mono option, even
though it
isn't there.
Are you sure? If we just take AULab as the starting point, can you
print out the formats in the Init call for both the input and output.
I would be surprised if your AU is being asked to do mono in/out if it
explicitly says it can't support it. I would share your concern about
this too! :)
Bill
Is this a bug in Logic or am I doing something wrong? Has anyone else
experienced problems with this? I've also tried every combination of
removing/restarting/rebuilding I could think of, in case the
component
manager might be caching out-of-date information.
Best,
Chris
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