Markus Bollinger wrote: > I have a strange problem with my WavePci based driver with a > DirectSound based customer application (I do not have its sources). > The application plays stereo sound for long time (> several weeks). > > After a certain time (several days to several weeks) the driver runs > out of mappings (starvation) and the user applications play position > does not continue. I have seen this kind of thing in two different circumstances, although I'm not sure in either case how you will chase it down. I have seen this happen when the stream clock rolls over, and either the application or the driver failed to handle that case. I have also seen this happen because of a drifting clock. If the audio device clock and the system clock differ, you get buffers backing up until there are none left. Is this audio only, or is there a video stream as well? I have certainly seen this happen in an audio/video graph where the two clocks differ. -- Tim Roberts, timr@xxxxxxxxx Providenza & Boekelheide, Inc. ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/