Re: performFormatChange
Re: performFormatChange
- Subject: Re: performFormatChange
- From: Jeff Moore <email@hidden>
- Date: Tue, 15 Apr 2003 17:53:22 -0700
It depends on what the state change is:
- If the state in question is represented by an IOAudioControl, then
one of the control notifications should be sent.
- If the state in question is the format of a specific stream, then the
format notification should be sent specifying the stream.
- If the state in question is the sample rate of the device or the
format of multiple streams, then a format notification should be sent
for each stream.
- If the state is something else, then the major engine change
notification should be sent.
In all cases, your driver should use the appropriate methods in the
IOAudio family to send the notifications.
On Tuesday, April 15, 2003, at 05:02 PM, Robert Penland wrote:
If a state change is detected internal to a core audio driver, what is
the
proper method for alerting any user land clients? Can I just call
performFormatChange internal to my driver?
Thanks,
Rob
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--
Jeff Moore
Core Audio
Apple
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