[wdmaudiodev] [Q] about buffer issue while using DirectSound to play wave files
- From: "rai" <rai.nuaa@xxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Fri, 6 Jun 2003 14:34:11 +0800
Hi,all
When I using DirectSound client to play wave files ,
My driver just receive IOCTL_WRITE_STREAM once,
instead, it receive KSPROPERTY_AUDIO_POSITION continuously until the
file was played to end.
and the two members of KSAUDIO_POSITION: PlayOffset ,WriteOffset never
changed.
Does anybody know anything about this ?
It seems like KS driver using looped buffer.
But where can I get buffer data when I received
KSPROPERTY_AUDIO_POSITION ?
Any information will be appreciated.
Thanks in advance!
Best Regards
Rai
2003-06-06
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