[wdmaudiodev] Re: Audio driver : KS topology test fails
- From: Girish Bhat <girishsadananda@xxxxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Fri, 10 Jul 2009 17:34:19 +0530 (IST)
Thanks a lot. We were not returning error in AudioVolumeLevel support function
for the unsupported channels. The testcase passes now.
--- On Thu, 9/7/09, Matthew van Eerde <Matthew.van.Eerde@xxxxxxxxxxxxx> wrote:
From: Matthew van Eerde <Matthew.van.Eerde@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: Audio driver : KS topology test fails
To: "Matthew van Eerde" <Matthew.van.Eerde@xxxxxxxxxxxxx>,
"'wdmaudiodev@xxxxxxxxxxxxx'" <wdmaudiodev@xxxxxxxxxxxxx>
Date: Thursday, 9 July, 2009, 10:13 PM
For some reading on the subject, check out:
Exposing Multichannel Nodes
http://msdn.microsoft.com/en-us/library/ms790303.aspx
Note especially the sentence "For example, a client can use the
KSPROPERTY_AUDIO_VOLUMELEVEL property to iteratively query a volume node
(KSNODETYPE_VOLUME) for the volume level of each channel—0, 1, and so on—until
the request returns an error indicating that no more channels exist".
From: Matthew van Eerde
Sent: Thursday, July 09, 2009 9:38 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: RE: [wdmaudiodev] Re: Audio driver : KS topology test fails
One possibility is that you're returning success in your handler even if the
provided channel number is too large. Can you share a GAudiT log on this audio
device? It may shed further light on the subject. You can email me directly
if you like.
mateer@xxxxxxxxxxxxx
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxxx] On Behalf Of Girish Bhat
Sent: Thursday, July 09, 2009 5:33 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Audio driver : KS topology test fails
Hi
Thanks for the response. I have already provided my own support handler i.e
AudioVolumeLevel. If you please elaborate a bit, would help
Thanks
--- On Tue, 7/7/09, Harry Graham <Harry_Graham@xxxxxxxxxxx> wrote:
From: Harry Graham <Harry_Graham@xxxxxxxxxx>
Subject: [wdmaudiodev] Re: Audio driver : KS topology test fails
To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
Date: Tuesday, 7 July, 2009, 8:00 PM
The only way I have been able to get this to work is to provide my own
SupportHandler. I would be very interested to hear about other solutions.
Harry
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxxxx] On Behalf Of Girish Bhat
Sent: Tuesday, July 07, 2009 3:03 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Audio driver : KS topology test fails
DTM test KS Topology Test fails with our driver. Following is the error
====
Node[01] (KSNODETYPE_VOLUME)
Property Descriptor[00] (KSPROPERTY_AUDIO_VOLUMELEVEL)
IOCTL called with an output buffer size of 0.
IOCTL called with an output buffer size of 1.
IOCTL called with an output buffer size of 2.
IOCTL called with an output buffer size of 6.
IOCTL called with an output buffer size of 8.
FAIL: Node[01] KSNODETYPE_VOLUME - Property[00]
KSPROPERTY_AUDIO_VOLUMELEVEL: KSPROPERTY_MEMBERSHEADER.Flags has
KSPROPERTY_MEMBER_FLAG_BASICSUPPORT_MULTICHANNEL set and must return the number
of channels in KSPROPERTY_MEMBERSHEADER.MembersCount
====
We set the no of channels to 2, but still we are facing this problem.
DEFINE_KSPROPERTY_TABLE (gVolumeProperties)
{
DEFINE_KSPROPERTY_ITEM
(
KSPROPERTY_AUDIO_VOLUMELEVEL, // property item
AudioVolumeLevel, // get property handler
sizeof(KSNODEPROPERTY_AUDIO_CHANNEL),
sizeof(LONG), // minimum buffer length for returned data
AudioVolumeLevel, // get property handler
&VolumeValues, // values
0, // related properties
NULL,
NULL, // no raw serialization handler
sizeof(LONG) // Serialized size
)
};
KSPROPERTY_VALUES VolumeValues =
{
{
STATICGUIDOF (KSPROPTYPESETID_General),
VT_I4,
0
},
SIZEOF_ARRAY (VolumeMembersList),
VolumeMembersList
};
KSPROPERTY_MEMBERSLIST VolumeMembersList [] =
{
{
{
KSPROPERTY_MEMBER_STEPPEDRANGES, //MembersFlags
sizeof (VolumeRangeAndStep[0]), //MembersSize
2, //MembersCount
KSPROPERTY_MEMBER_FLAG_BASICSUPPORT_MULTICHANNEL //Flags
},
(PVOID) VolumeRangeAndStep,
},
{
{
KSPROPERTY_MEMBER_VALUES,
sizeof (VolumeDefault),
2,
KSPROPERTY_MEMBER_FLAG_DEFAULT
},
(PVOID) &VolumeDefault,
}
};
Any pointers on how to proceed futher would help.
Thanks
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