I was afraid of that--I had tried the method you describe and it didn't make a difference. It seems that if I have specific framing requirements, then I need to reframe the data. Just a sanity check. On 9/24/07, Tim Roberts <timr@xxxxxxxxx> wrote: > > Shawn Brooks wrote: > > I have an AVStream driver that can capture and render audio. I'd like > > to tell AVStream to only present the driver with frames of a specific > > size, but I'm not sure how to do that--or if it's even possible. > > > > Can anyone point me in the right direction? > > You can state your memory allocation requirements rather specifically in > the AllocatorFraming member of your KSPIN_DESCRIPTOR_EX structure. > However, as the documentation cautions, your requirements might be > ignored, especially if the next upstream driver is in user mode. > > -- > 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/ > >