[wdmaudiodev] Re: looped streaming

  • From: Matt Gonzalez <matt@xxxxxxxxxxxxx>
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Wed, 7 Apr 2010 08:52:34 -0700

You can get info about WaveRT here:

http://www.microsoft.com/whdc/device/audio/wavertport.mspx


On Apr 7, 2010, at 8:05 AM, Eugene Muzychenko <emuzychenko@xxxxxxxxx> wrote:

Hello Nikolay,

Can you point me the source?

Unfortunately, there is no source, as for many other issues with MS
software. PortCls exposes both KSINTERFACE_STANDARD_STREAMING and
KSINTERFACE_STANDARD_LOOPED_STREAMING for WaveCyclic/WavePci
interfaces but KSINTERFACE_STANDARD_LOOPED_STREAMING is almost useless
in this case (it is similar to WHDR_BEGINLOOP/WHDR_ENDLOOP flags in
WAVEHDR and allows to loop only a constant audio data).

For WaveRt interface, PortCls exposes only
KSINTERFACE_STANDARD_LOOPED_STREAMING.

Regards,
Eugene

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