[wdmaudiodev] Re: Dynamic format negotiation on Windows 7
- From: uwekirst <u.kirst@xxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Thu, 24 Feb 2011 14:01:30 +0100
Hi all,
it seems to me that the issue I reported here some times ago still applies.
The KS_EVENT_PINCAPS_FORMATCHANGE mechanism is not reliable.
After some sf changes which seemed to work the event mechanism stopped
working.
It even doesn't help that I unload my driver (or unplug my device).
Pressing the test button fails. The old sf is still shown and selected
in the control panel. The set of new sf's are also shown but not selected.
Selecting the new rates and pressing the test button with the new rates
fail.
This conditions remains until reboot:
-setting the event once again dosen't help.
-unloading and loading my driver once again doesn't help. Sf changes are
still not possible.
I conclude that the hanging is located within windows.
/Uwe
Am 14.02.2011 20:07, schrieb Matthew van Eerde:
I want to support 32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz, 96kHz, 128kHz,
176.4kHz and 192kHz.
Try exposing a separate data range for each of these:
1) MinimumSampleFrequency = 32000; MaximumSampleFrequency = 32000
2) MinimumSampleFrequency = 44100; MaximumSampleFrequency = 44100
3) MinimumSampleFrequency = 48000; MaximumSampleFrequency = 48000
4) MinimumSampleFrequency = 64000; MaximumSampleFrequency = 64000
...
________________________________________
From: wdmaudiodev-bounce@xxxxxxxxxxxxx [wdmaudiodev-bounce@xxxxxxxxxxxxx] on
behalf of uwekirst [u.kirst@xxxxxx]
Sent: Monday, February 14, 2011 12:43 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Re: Dynamic format negotiation on Windows 7
Nobody knows why sf 64kHz and 128kHz doesn't work with
KS_EVENT_PINCAPS_FORMATCHANGE?
thanks,
/Uwe
Am 10.02.2011 16:40, schrieb uwekirst:
Hi all,
Hi Chen-mean,
at the moment I'm checking once again wether I could use dynamic
format changes under windows 7.
I want to use the event mechanism because it seems to be much faster
than removing/adding subdevices.
Basically I have some samplerates already working, but there are still
issues.
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