IOAudioStream[0x280fa00]::clipIfNecessary()
IOAudioStream[0x280fa00]::clipIfNecessary()
- Subject: IOAudioStream[0x280fa00]::clipIfNecessary()
- From: Marc Van Olmen <email@hidden>
- Date: Sun, 23 Jan 2005 19:10:50 -0500
hi,
I have seen this error in the systemlog, after this error my
applications is doing weird and the audio starts lagging behind the
videostream. (I have written my own playback engine...) but the
application needs to run 24/7 so I need to figure out a solution for
this problem.
I went through the archives and found Nov 2004 a few e-mails around
this subject.
I have this problem with Decklink Extreme card (PCI-X) on a G5 1.8 ghz
(first generation so with PCI-X slot) using the 4.7.1 version of their
drivers.
So what can I do to prevent this problem?
If I read those e-mails of november well is that i have to increase the
buffer size of the audio output unit.
Is that correct?
I'm currently using the
BAIL_OSERROR(OpenDefaultAudioOutput(&fOutputAudioUnit));
To open the output device and I switch it to the right device:
BAIL_OSERROR(AudioUnitSetProperty(fOutputAudioUnit,
kAudioOutputUnitProperty_CurrentDevice,
kAudioUnitScope_Global,
0,
&aDeviceID,
sizeof(aDeviceID)));
Should
i use kAudioUnitProperty_SetExternalBuffer
To increase the buffersize?
I'm have a little experience yet with coreAudio so sorry for this maybe
stupid question.
greetings and thx in advance,
mvo
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