Re: Lion changes to audio processing
Re: Lion changes to audio processing
- Subject: Re: Lion changes to audio processing
- From: "Rubin, Jonathon" <email@hidden>
- Date: Mon, 25 Jul 2011 17:21:51 +0000
- Thread-topic: Lion changes to audio processing
Thanks Brett,
ioreg tells me IOAudioEngineState is 1, and so is
IOAudioEngineNumActiveClients. The only client listed is coreaudiod:
+-o IOAudioEngineUserClient <class IOAudioEngineUserClient, id
0x10000055e, !registered, !matched, active, busy 0, retain 7>
| {
| "IOAudioEngineUserClientActive" = 1
| "IOUserClientCreator" = "pid 192, coreaudiod"
| }
|
Šwhich matches what I get if i run proc_selfpid() inside the engine when
clipOutputSamples() is called.
Jon
On 7/23/11 1:50 PM, "Brett George" <email@hidden> wrote:
>Sounds like someone is streaming to the device. Have a look in ioreg to
>confirm that the engine is running (IOAudioEngineState is non-zero) and
>there is an active client (IOAudioEngineNumActiveClients is non-zero).
>All of the possible clients will be a child of your IOAudioEngine.
>
>Brett.
>
>
>On Jul 22, 2011, at 2:23 PM, Rubin, Jonathon wrote:
>
>> I'm maintaining an IOAudio driver (based on the AudioReflectorDriver
>> sample code)
>> which is acting very oddly in 10.7:
>>
>> When no audio is playing, the driver is constantly receiving silent
>> audio samples in clipOutputSamples
>>
>> Anyone have any idea why this is happening?
>
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