[wdmaudiodev] Re: Vista: multichannel playback
- From: "Philip Lukidis" <plukidis@xxxxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 16 Jan 2007 11:40:38 -0500
I meant that my DataRangeIntersection method is called under Vista only if I
did not make a handler for KSPROPERTY_PIN_PROPOSEDATAFORMAT. If the latter
handler is supported, then I have not observed the DataRangeIntersection method
being called under Vista (with the exception of KSStudio).
As for KSPROPERTY_PIN_DATAINTERSECTION, I always assumed that the port driver
intercepts this, and calls your DataRangeIntersection method. I never made a
handler for KSPROPERTY_PIN_DATAINTERSECTION- just the DataRangeIntersection
method.
BTW, there is an example for KSPROPERTY_PIN_PROPOSEDATAFORMAT in the latest WDK.
hth,
Philip Lukidis
> -----Original Message-----
> From: wdmaudiodev-bounce@xxxxxxxxxxxxx
> [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]On Behalf Of Eugene
> Muzychenko
> Sent: Tuesday, January 16, 2007 11:22 AM
> To: Philip Lukidis
> Subject: [wdmaudiodev] Re: Vista: multichannel playback
>
>
> Hello Philip,
>
> > Going by memory, I think he mentioned the property
> > KSPROPERTY_PIN_PROPOSEDATAFORMAT and not
> > KSPROPERTY_PIN_DATAINTERSECTION
>
> His message is here:
>
> //www.freelists.org/archives/wdmaudiodev/01-2007/msg00047.html
>
> > My handler for KSPROPERTY_PIN_PROPOSEDATAFORMAT is
> definitely called under Vista,
> > and in that case my DataRangeIntersection method is not
> called at all (except by KSStudio).
>
> Hmm. My DataRangeIntersection method is always called from 2k to
> Vista...
>
> > For KSNODETYPE_LINE_CONNECTOR, the handler supporting
> > KSPROPERTY_PIN_PROPOSEDATAFORMAT should make sure that the
> > dwChannelMask is indeed 0, else refuse it.
>
> Thanks, I will implement KSPROPERTY_PIN_PROPOSEDATAFORMAT handler.
>
> Regards,
> Eugene
>
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