[Bug 773681] directsoundsink: High cpu usage on windows x86

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=773681

--- Comment #19 from Dustin Spicuzza <dustin at virtualroadside.com> ---
Well, in the case of the log message I posted above, length is 1764 and
dwFreeBufferSize is 1764. The first part of sleep calculation is (length -
dwFreeBufferSize), which of course is zero.

If you change the `if (length >= dwFreeBufferSize)` to length >
dwFreeBufferSize, the CPU usage goes down to normal. However, I think I would
still recommend setting a minimum wait time (5ms?).

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