[wdmaudiodev] Re: AVStream Renderer
- From: Waldemar Haszlakiewicz <waldemar.haszlakiewicz@xxxxxxxx>
- To: "John D. Farmer" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Tue, 23 Mar 2004 17:54:26 +0100
Well this part looks correct, but this shows very little -> do you have bridge
pin,
is the topology correct,.....,is FilterDescriptor correct,......
Anyway 1 little mistake and system can refuse to show the pin.
Again -> go through every structure and check everything 3 times.
Another thing you said you have problems with inf file also ->
you can use KsCreateFilterFactory to register the channels -> don't forget to
register
KSCATEGORY_AUDIO, KSCATEGORY_RENDER (and KSCATEGORY_CAPTURE if you have capture
pin).
Waldemar
JDF> I've set those flags in my pin descriptor... Here is the following code:
JDF> { // Pin 0 - Audio Rendering Pin
JDF> &AudioPinDispatch, // Dispatch
JDF> NULL, //
JDF> Automation Table
JDF> {
//
JDF> Pin Descriptor
JDF> SIZEOF_ARRAY(PinInterfaces), // Interface
JDF> Count
JDF> PinInterfaces,
JDF> // Interfaces
JDF> SIZEOF_ARRAY(PinMediums), // Medium Count
JDF> PinMediums,
JDF> // Mediums
JDF> SIZEOF_ARRAY(PinAudioFormatRanges), // Data Range Count
JDF> PinAudioFormatRanges, //
Data
JDF> Ranges
JDF> KSPIN_DATAFLOW_IN, // Data Flow
JDF> KSPIN_COMMUNICATION_SINK, // Communication
JDF> &PINNAME_KSCATEGORY_AUDIO, // Name
JDF> &KSCATEGORY_AUDIO, // Category
JDF> 0
JDF> // Reserved
JDF> },
JDF> KSPIN_FLAG_RENDERER |
JDF> KSPIN_FLAG_FRAMES_NOT_REQUIRED_FOR_PROCESSING, // Flags
JDF> 1,
JDF> // Instances Possible
JDF> 1,
JDF> // Instances Necessary
JDF> NULL,
JDF> // Allocator Framing
JDF> AudioIntersectHandler
JDF> // Intersect Handler
JDF> }
JDF> }
JDF> Where PINNAME_KSCATAGORY_AUDIO is STATIC_KSCATEGORY_AUDIO.
JDF> ----- Original Message -----
JDF> From: "Waldemar Haszlakiewicz" <waldemar.haszlakiewicz@xxxxxxxx>
JDF> To: "John D. Farmer" <wdmaudiodev@xxxxxxxxxxxxx>
JDF> Sent: Tuesday, March 23, 2004 1:24 AM
JDF> 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
JDF> based what I have so far
>> off of the AVSSAMP sample from the DDK, I have taken out most of the video
JDF> stuff and implemented the
>> audio stuff. The problem I am having is that I can't seem to setup the
JDF> audio pin as a rendering
>> pin. I want to have it show up as a Audio Renderer in GraphEdit instead
JDF> of a WDM Streaming Capture
>> Device that it currently shows up as. I've looked at the MSVAD sample,
JDF> and its helped some, but I
>> cannot seem to divine its secrets from the code or its INF. I know that
JDF> MSVAD is a PortCls driver,
>> but it seems to be the only example I can find that actually shows up in
JDF> the Audio Renderers
>> category in MSVAD. I've tried different Categories Types, Node Types, Pin
JDF> Types, and Topology
>> Types. I am rather confused as to what makes a renderer a renderer.
JDF> Could someone please enlighten
>> me?
>>
>> JDF> Any help would be appreciated.
>>
>> JDF> John Farmer
>>
>> ******************
>>
>> WDMAUDIODEV addresses:
>> Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
>> Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
>> Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
>> Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
>>
>> URL to WDMAUDIODEV page:
>> http://www.wdmaudiodev.de/
>>
>>
JDF> ******************
JDF> WDMAUDIODEV addresses:
JDF> Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
JDF> Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
JDF> Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
JDF> Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
JDF> URL to WDMAUDIODEV page:
JDF> http://www.wdmaudiodev.de/
******************
WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx
URL to WDMAUDIODEV page:
http://www.wdmaudiodev.de/
Other related posts:
