[wdmaudiodev] Re: Is there a way to list all supported format of an audio device
- From: Matthew van Eerde <Matthew.van.Eerde@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Sat, 17 Aug 2013 01:43:42 +0000
It is possible that a driver will support formats beyond those it advertises in
its KS Data Ranges; you can use KSPROPERTY_PIN_PROPOSEDATAFORMAT / SET to query
whether a particular format is supported. Or go straight to KsCreatePin.
I'm not aware of any audio drivers that support compressed offload. Compressed
exclusive mode on the host pin, sure (e.g., HDMI); but not compressed offload.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew Sha......
Sent: Friday, August 16, 2013 6:12 PM
To: wdmaudiodev wdmaudiodev
Subject: [wdmaudiodev] Re: Is there a way to list all supported format of an
audio device
Hmm, did this already, but it does not show compressed formats that I know can
be offloaded for sure
________________________________
From: Matthew.van.Eerde@xxxxxxxxxxxxx<mailto:Matthew.van.Eerde@xxxxxxxxxxxxx>
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: Is there a way to list all supported format of an
audio device
Date: Sat, 17 Aug 2013 00:43:25 +0000
Next step is to query KSPROPERTY_PIN_DATARANGES on the offload pin factory. KS
Studio will also show you this information.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew Sha......
Sent: Friday, August 16, 2013 4:47 PM
To: wdmaudiodev wdmaudiodev
Subject: [wdmaudiodev] Re: Is there a way to list all supported format of an
audio device
Exactly!
It looks like KSPROPERTY_AUDIOENGINE_DESCRIPTOR gives me the nOffloadPinId,
then what?
I am in the user mode at the moment
________________________________
From: Matthew.van.Eerde@xxxxxxxxxxxxx<mailto:Matthew.van.Eerde@xxxxxxxxxxxxx>
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: Is there a way to list all supported format of an
audio device
Date: Fri, 16 Aug 2013 23:38:20 +0000
That returns the list of formats that the audio device can support at the DAC.
You probably want the list of formats it supports for KsCreatePin.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew Sha......
Sent: Friday, August 16, 2013 4:27 PM
To: wdmaudiodev wdmaudiodev
Subject: [wdmaudiodev] Re: Is there a way to list all supported format of an
audio device
I am using KS and my first attempt was to leverage the
KSPROPERTY_AUDIOENGINE_SUPPORTEDDEVICEFORMATS but it does not look like it
returns what I was expecting
________________________________
From: Matthew.van.Eerde@xxxxxxxxxxxxx<mailto:Matthew.van.Eerde@xxxxxxxxxxxxx>
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: Is there a way to list all supported format of an
audio device
Date: Fri, 16 Aug 2013 23:11:17 +0000
What API are you using to stream?
If you're using WASAPI, you can call IAudioClient2::SetClientProperties(...)
and then IAudioClient::IsFormatSupported(...).
If you're using KS, you can look at the data ranges exposed by the offload pin
factory.
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew Sha......
Sent: Friday, August 16, 2013 3:59 PM
To: wdmaudiodev wdmaudiodev
Subject: [wdmaudiodev] Re: Is there a way to list all supported format of an
audio device
Hardware-Offloaded Audio Processing
http://msdn.microsoft.com/en-us/library/windows/hardware/dn302038(v=vs.85).aspx<http://msdn.microsoft.com/en-us/library/windows/hardware/dn302038%28v=vs.85%29.aspx>
So how to discover offloaded formats?
________________________________
From: Robert.Bielik@xxxxxxxxx<mailto:Robert.Bielik@xxxxxxxxx>
To: wdmaudiodev@xxxxxxxxxxxxx<mailto:wdmaudiodev@xxxxxxxxxxxxx>
Subject: [wdmaudiodev] Re: Is there a way to list all supported format of an
audio device
Date: Fri, 16 Aug 2013 06:17:17 +0000
To find out the supported formats, you need to enumerate all possible formats
and ask the device (driver) whether
the format is supported or not. But I have no idea what "offloaded" means ? :)
Regards,
/Rob
From: wdmaudiodev-bounce@xxxxxxxxxxxxx<mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx>
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew Sha......
Sent: den 16 augusti 2013 00:44
To: wdmaudiodev wdmaudiodev
Subject: [wdmaudiodev] Is there a way to list all supported format of an audio
device
Hi Audio
Is there a way to list all supported formats of an audio device and find out
which can be offloaded?
Thanks in advance
Andrew
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