Re: HostCallback_GetBeatAndTempo
Re: HostCallback_GetBeatAndTempo
- Subject: Re: HostCallback_GetBeatAndTempo
- From: Robert Grant <email@hidden>
- Date: Tue, 16 Dec 2003 14:24:31 -0500
Hi Jeremy,
Well thanks for the sanity check, but I'm still not getting it to work
here. The Oddity starts up OK but as soon as some MIDI hits it, it
crashes. I thought that perhaps some MIDI data was getting to it before
it was ready (my keyboard is always issuing ActiveSense) but filtering
that out didn't help.
It really doesn't make much sense... especially as not setting the
BeatAndTempo property makes it happy!
Robert.
On Dec 14, 2003, at 9:31 PM, Jeremy Sagan wrote:
Robert,
I just tried the oddity AU demo in Metro and the beat and tempo (and
all else that I could see) seem to work fine. It synced when changing
tempo also. Of course I do not know how to operate it but it does not
crash.
Jeremy
On Sunday, December 14, 2003, at 07:49 PM, Robert Grant wrote:
Here's a surprise. Oddity AU is blowing chunks if I set the
BeatAndTempo property on it! Not immediately, put pretty soon after.
Here's a portion of the call stack - looks surprisingly shallow:
Thread 3 Crashed:
#0 0x05c25004 in 0x5c25004
#1 0x05bd52b4 in
AUMIDIBase::ComponentEntryDispatch(ComponentParameters*, AUMIDIBase*)
(AUMIDIBase::ComponentEntryDispatch(ComponentParameters*,
AUMIDIBase*) + 88)
#2 0x05bd5478 in
MusicDeviceBase::ComponentEntryDispatch(ComponentParameters*,
MusicDeviceBase*)
(MusicDeviceBase::ComponentEntryDispatch(ComponentParameters*,
MusicDeviceBase*) + 108)
#3 0x05b72418 in AUMusicDeviceEntry (AUMusicDeviceEntry + 120)
#4 0x90281a90 in CallComponent (CallComponent + 212)
#5 0x91a90a0c in MusicDeviceMIDIEvent (MusicDeviceMIDIEvent + 52)
As a comparison but Zebra and Albino are happy with the tempo
settings.
Has anyone else had success with this property and Oddity?
Robert.
On Dec 14, 2003, at 8:04 PM, Marc Poirier wrote:
On Sun, 14 Dec 2003, Robert Grant wrote:
Attempting to support this in my Rax update, but had a question:
Is the "outCurrentBeat" indexed from 0 or 1?
It is from 0.
http://lists.apple.com/archives/coreaudio-api/2002/Oct/01/
auhostcallbackmusicalloc.001.txt
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