Re: AU Midi Output
Re: AU Midi Output
- Subject: Re: AU Midi Output
- From: Bill Stewart <email@hidden>
- Date: Fri, 26 Sep 2003 10:57:01 -0700
We've some work to do here to implement this ourselves, but the API and
"intention" is basically there - and this is the simplest part. You
specify an AudioStreamBasicDescription with the 'midi' as the format
type. The "stream" is a MIDI packet list, where the time stamps of that
list are sample offsets for the current buffer (oh, and the ASBD's
sample rate should be set so transformations to time can be done by the
au when looking at these time stamps). The base classes don't have any
support for this, but this is an exercise we plan on undertaking.
Bill
On Friday, September 26, 2003, at 09:37 AM, Airy Andri wrote:
On 26 sept. 03, at 18:36, Marc Poirier wrote:
Thanks for the quick reply. This great news! I have already been
using the virtual midi workaround and it's ok, but certainly not
ideal.
I'm glad to hear the platform will offer furst class support of
this
feature in Panther. I'm sure many developers will see the potential
and jump to fill the need...
There's actually going to be an QuickTime update for OS X 10.2, too,
that
will add these improvements to AU. So it won't just be limited to
10.3.
Marc
We will also need some support from the hosts.
I hope this will give an opportunity for Emagic to improve its MIDI
routing capabilities, so effects will stay on effects slots, while
being able to receive/send MIDI...
Airy
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