[wdmaudiodev] Re: IAMPushSource support in AVStream

  • From: Tim Roberts <timr@xxxxxxxxx>
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Mon, 11 Jul 2011 12:49:43 -0700

Sam Tertzakian wrote:
> I have an AVStream Video/Audio capture driver. I want KsProxy to
> expose the IAMPushSource interface on the audio and/or video filter.
> The documentation in MSDN states that if the pin is exposed as a
> PIN_CATEGORY_CAPTURE and IKsPropertySet is also exposed in the filter
> that the filter is considered a "Live Source". The documentation also
> states that "Live Sources" should expose IAMPushSource. But it does
> not appear to be the case...the interface does not appear to be supported.

Why do you think so?  How did you check this?
> Is there something I need to do (such as support a specific property
> set) in the AVStream driver to cause that interface to be exposed?

Ksproxy should expose that for all live capture sources.

Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.

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