Directsound Slaving info question

I am developing an analog capture filter driver. There was an AV sync issue

after the long time live source playback (>2 hr). The audio pin always queue

few buffers after long time playback. I have checked the video and audio PTS

with each media transfer sample, they look like no problem.

I have a question with Default Directsound Device filter. There is

information in Default Directsound Device Properties->Advanced->Slaving

Info->Rate. The "Rate" should be 48KHz with my device, but it will be changed

with the "High Err" and "Low Err" parameters. Could I set any parameter to

change the "High Err" or "Low Err" value in audio output pin of analog

capture

filter?