[wdmaudiodev] Re: AVStream Renderer
- From: "John D. Farmer" <johndfarmer@xxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 23 Mar 2004 07:27:48 -0800
I've set those flags in my pin descriptor... Here is the following code:
{ // Pin 0 - Audio Rendering Pin
&AudioPinDispatch, // Dispatch
NULL, //
Automation Table
{ //
Pin Descriptor
SIZEOF_ARRAY(PinInterfaces), // Interface
Count
PinInterfaces,
// Interfaces
SIZEOF_ARRAY(PinMediums), // Medium Count
PinMediums,
// Mediums
SIZEOF_ARRAY(PinAudioFormatRanges), // Data Range Count
PinAudioFormatRanges, // Data
Ranges
KSPIN_DATAFLOW_IN, // Data Flow
KSPIN_COMMUNICATION_SINK, // Communication
&PINNAME_KSCATEGORY_AUDIO, // Name
&KSCATEGORY_AUDIO, // Category
0
// Reserved
},
KSPIN_FLAG_RENDERER |
KSPIN_FLAG_FRAMES_NOT_REQUIRED_FOR_PROCESSING, // Flags
1,
// Instances Possible
1,
// Instances Necessary
NULL,
// Allocator Framing
AudioIntersectHandler
// Intersect Handler
}
}
Where PINNAME_KSCATAGORY_AUDIO is STATIC_KSCATEGORY_AUDIO.
----- Original Message -----
From: "Waldemar Haszlakiewicz" <waldemar.haszlakiewicz@xxxxxxxx>
To: "John D. Farmer" <wdmaudiodev@xxxxxxxxxxxxx>
Sent: Tuesday, March 23, 2004 1:24 AM
Subject: [wdmaudiodev] Re: AVStream Renderer
> There is a flag that you have to set in pin struct -> KSPIN_FLAG_RENDERER,
> but there may be other things too -> like KSPIN_DATAFLOW_IN and
> KSPIN_COMMUNICATION_SINK.
>
> Anyway read about the flags in DDK and define them correctly.
> Another thing recheck every struct 3 times that everything is correct.
>
> Peace
> Waldemar
>
>
> JDF> I am trying to create a AVStream Minidriver Audio Renderer. I have
based what I have so far
> off of the AVSSAMP sample from the DDK, I have taken out most of the video
stuff and implemented the
> audio stuff. The problem I am having is that I can't seem to setup the
audio pin as a rendering
> pin. I want to have it show up as a Audio Renderer in GraphEdit instead
of a WDM Streaming Capture
> Device that it currently shows up as. I've looked at the MSVAD sample,
and its helped some, but I
> cannot seem to divine its secrets from the code or its INF. I know that
MSVAD is a PortCls driver,
> but it seems to be the only example I can find that actually shows up in
the Audio Renderers
> category in MSVAD. I've tried different Categories Types, Node Types, Pin
Types, and Topology
> Types. I am rather confused as to what makes a renderer a renderer.
Could someone please enlighten
> me?
>
> JDF> Any help would be appreciated.
>
> JDF> John Farmer
>
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