[wdmaudiodev] AVStream based Capture Filter
- From: Andy Cao <cao.andy@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Mon, 2 Mar 2009 19:19:06 +0800
hi
I wrote an AVStream driver and registered it to "Audio Capture
Sources" category. But the registered filter display different in
KSStdio/GraphEdit from that I declare in my code. And my filter play
in GraphEdit, GraphEdit is hung.
my filter's pin description is here
const KSPIN_DESCRIPTOR_EX AudioCapturePinDescriptors [] =
{
//0:Line In
{
NULL,
NULL,
{
0,NULL,
0,NULL,
0, NULL,
KSPIN_DATAFLOW_IN,KSPIN_COMMUNICATION_BOTH,
&PINNAME_BDA_ANALOG_AUDIO, &PINNAME_BDA_ANALOG_AUDIO,
0
},
0,
1,
0,
NULL,
NULL,
},
//1:Audio
{
&AudioFilterPinDispatch,
&AudioFilterPinAutomation,
{
KSINTERFACE_STANDARD_STREAMING,NULL,
0,NULL,
SIZEOF_ARRAY(AudioPinDataRanges),AudioPinDataRanges,
KSPIN_DATAFLOW_OUT,KSPIN_COMMUNICATION_BOTH,
&PINNAME_CAPTURE,&PINNAME_CAPTURE,
0
},
KSPIN_FLAG_DISPATCH_LEVEL_PROCESSING |
KSPIN_FLAG_PROCESS_IN_RUN_STATE_ONLY,
1,1,
&AudioPinAllocatorFraming,
(PFNKSINTERSECTHANDLEREX)&AudioFilterPin::DataRangeIntersection
},
};
The KSStudio show only one Capture pin, and tell that the capture pin
is KSPIN_COMMUNICATION_SINK (not KSPIN_COMMUNICATION_BOTH as I
declare).
My INF register is here:
[MYDEVICE.AUDIO.AddReg]
HKR,,SetupPreferredAudioDevices,3,01,00,00,00
HKR,,AssociatedFilters,,"wdmaud"
HKR,,Driver,,mydevice.sys
HKR,,NTMPDriver,,"mydevice.sys"
HKR,Drivers,SubClasses,,"wave,mixer"
HKR,Drivers\wave\wdmaud.drv, Driver,,wdmaud.drv
HKR,Drivers\mixer\wdmaud.drv,Driver,,wdmaud.drv
HKR,Drivers\wave\wdmaud.drv,Description,,%MYDEVICE.DeviceDesc0%
HKR,Drivers\mixer\wdmaud.drv,Description,,%MYDEVICE.DeviceDesc0%
******************
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.com/
Other related posts:
