[Bug 8740] Test application freezes in playback with builtin quartz and test AVI file

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=8740

------- Additional Comments From [e-mail]  2007-22-06 12:31 -------
I think I found the cause. I think there is a regression in dsound or quartz
that prevents Wine from playing sound at 48 KHz (both ALSA and OSS are affected,
so I think it is not an audio driver bug). The supplied test file has an audio
soundtrack with that sampling rate, and so it fails. Confirmed with other files
with sample rates at 48KHz, irrespective of video codec. They are also muted,
and because there is no implementation of reference clock in builtin quartz,
video output eventually freezes. My suspicion is that builtin quartz sends
samples at 48KHz, and also sends a truckload of frames to the video renderer,
and then waits for both to finish before sending the next batch. The sound
renderer never plays, because of the bug. Filter graph then waits forever for
sound that never plays --> video freezes.

In an unrelated bug, I am experiencing failing assertions in dlls/dsound/tests
with WINEDEBUG_INTERACTIVE=1 wine dsound_test.exe.so dsound . This happens even
before reaching the part when 48KHz playback is tested. Both ALSA and OSS are
affected. This second problem prevents me from deciding whether this bug is
wine-quartz or wine-directx-dsound .