[wdmaudiodev] Re: Wave Devices using AVStream driver
- From: Sam Tertzakian <saekisam@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Fri, 9 Sep 2005 15:33:54 -0700 (PDT)
Hi, Matt,
The only difference that I see is that devices that
appear have a properly formed topology...and my driver
does not. That must be the difference. My next step is
to add a properly formed topology and see what
happens. This is not a top priority so, I'll have to
try that later.
Thank you for your response.
--- Matt Gonzalez <matt@xxxxxxxxxxxxx> wrote:
---------------------------------
Hello Sam-
Sorry for not responding earlier.
I think what mainly offer you at this point is my
sympathy. : )
You don't have to add the filter factories dynamically
- you can use astatic descriptor; that's what I had at
first and it worked.
The only thing I can suggest at this point is to
compare your device'sfilters with another device that
does show up in the audio devicelist. I don't think
it matters if it uses AVStream or not - KS proxywill
only use your device if all the pins and nodes and so
forth arejust so. I would go over your filters
minutely and look for anydiscrepancies.
Good luck - getting your device to show up properly is
no fun.
Matt
Sam Tertzakian wrote: v\:*
{behavior:url(#default#VML);}o\:*
{behavior:url(#default#VML);}w\:*
{behavior:url(#default#VML);}.shape
{behavior:url(#default#VML);}st1\:*{behavior:url(#default#ieooui)
}
Hi, Matt,
I finallygot a chance to revisit thisissue?and
unfortunately, I am still not able to solve it.
I addedKSCATEGORY_AUDIO to my categorieslist.
I made theappropriate changes to the INFfile.
When I go toKSStudio, I see my devicelisted under
AUDIO, CAPTURE and RENDER.
But, when Igo to GraphEdit, my device isonly listed
under ?WDM Streaming Devices?, but not ?AudioCapture?
or ?Audio Render? list.
I havechecked and rechecked everythingand I don?t see
anything wrong. Everything in the INF is as it
shouldbecompared to all the other INFs in my system
and sample drivers.
I would liketo avoid having to doeverything
dynamically like the code Waldemar provided since it
issupposed towork.
The onlydifference I see between my codeand Waldemar
is that he defines a topology, whereas I allow the KS
todefine mytopology for me since I use NULL in the
filter descriptor for theTopologyentry.
Do youdefine a Topology and nodes, etc inyour driver?
Or, can youthink of anything else I needto do.
Everything looks right in KsStudio.
Thank you inadvance for your time?
---------------------------------
From:wdmaudiodev-bounce@xxxxxxxxxxxxx[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]
OnBehalf Of Sam Tertzakian
Sent: Monday, August15, 2005 1:39AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev]Re: WaveDevices using AVStream
driver
Hi, Matt,
Oh, ok, I?llfollow your advice. Iwas worried about the
InstallSubDevice() equivalent in AVStream.
As for themultiple (wave) devices, Iguess I?ll have to
make two instances of the same filter. Does
thatsoundright to you?
Thank youfor your time?
---------------------------------
From:wdmaudiodev-bounce@xxxxxxxxxxxxx[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx]
OnBehalf Of Matt Gonzalez
Sent: Sunday, August14, 200510:43 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev]Re: Wave Devicesusing AVStream
driver
I suggest you go ahead and tryadding
KSCATEGORY_AUDIOto the Categories list in your filter
descriptor. That wasall I had to do.
Make sure the reference string in the AddInterface
entry in your INFmatchesthe ReferenceGuid in your
KSFILTER_DESCRIPTOR.
Matt
Sam Tertzakian wrote:
Hi,
Right now, I am only listing KS_CATEGORY_CAPTURE and
KS_CATEGORY_RENDER.
I expect that I should list KSCATEGORY_AUDIO as I do
for my WavePCI drivers.
But, in the WavePCI drivers, I use "InstallSubDevice(
...., "Wave", .... );"
to link the name in the INF to my kernel mode device.
But, in AVStream I don't see the equivalent function
InstallSubDevice().
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of
Matt Gonzalez
Sent: Sunday, August 14, 2005 9:13 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Wave Devices using AVStream
driver
What categories are you listing for your filter?
Matt
Sam Tertzakian wrote:
I have an AVStream driver that captures/renders audio.
To do so, I use
GraphEdt and the device is listed under "WDM Streaming
Devices".
Now, I need to make it also appear under "Audio
Capture" devices. Can I do
this with AVStream? If so, how?
With WavePCI we use PortCls functions to expose the
wave device. I want to
do the same thing using an AVStream driver.
I want to be able to use the device using the Wave
API. I think it is
possible since, as far as I know, the USBAudio.sys is
an AVStream driver
and
it exposes Wave devices.
Thank you
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