[wdmaudiodev] Re: Windows Media 9
- From: "Martin Puryear" <martinpuryear@xxxxxxxxxxx>
- To: <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Thu, 17 Oct 2002 10:06:22 -0700
Hi Dirk,
We will be changing our surround format and multi-channel fold-down
issue going forward for sure. This is a known issue.
KMixer is connected to the driver at some standard format (48k stereo or
something like that), but then ratchets to the requested format, if the
driver supports it (unless I am recalling incorrectly). The problem
with what you suggest is that today's KMixer can't be inserted/deleted
on the fly. This is why we would have never promised that, but we did
say that we would make things a lot more transparent between the app's
requested format and the driver.
Thanks,
Martin Puryear (martinp@xxxxxxxxxxxxx)
Development Manager, Audio/Video Devices Group
This posting is provided "AS IS" with no warranties, and confers no
rights.
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Van Mieghem, Dirk
Sent: Sunday, October 13, 2002 12:48 PM
To: 'wdmaudiodev@xxxxxxxxxxxxx'
Subject: [wdmaudiodev] Windows Media 9
Hi all,
anyone tested Windows Media 9 5.1/7.1 surround encoding/decoding
already? It seems that KMixer gets really confused when a surround
format is played and another playback stream has to be mixed in. The 2nd
stream is completely garbled, is this a known issue on WXP/SP1?
Why is it that a driver doesn't see the requested playback datarange in
its intersection call? Why can't KMixer behave the same as for a
recording stream? If the hardware supports the requested format then
KMixer shouldn't be inserted. I believe this was once promised by
Microsoft but no sign of it so far.
Thanks,
Dirk
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