[Bug 39744] No sound in Applications after Update from 1.7 pre winepulse.drv to 1.7.55 or 1.8 after the pulse update

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=39744

Andrew Eikum <aeikum at codeweavers.com> changed:

           What    |Removed                     |Added
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                 CC|                            |wine at mblankhorst.nl

--- Comment #2 from Andrew Eikum <aeikum at codeweavers.com> ---
Thanks for the nice bug report! Could you attach your </etc/pulse/daemon.conf>
file?

It looks like the pulse buffer is very small compared to what we request. After
configuring the stream for 32-bit 2-channel audio, we get these attributes:

trace:pulse:dump_attr maxlength: 4194304
trace:pulse:dump_attr minreq: 5288
trace:pulse:dump_attr fragsize: 21168
trace:pulse:dump_attr tlength: 21168
trace:pulse:dump_attr prebuf: 15888

"tlength" is the important one. 21168 is 2646 frames which is a duration of
0.06 seconds. Later, the application tries to write a buffer of 7200 frames
(0.16 seconds), which obviously doesn't fit into that buffer, and fails.

So I wonder why PA is giving us such a tiny buffer? If that's valid behavior
for PA, then in order to meet the mmdevapi contract, winepulse should store
data locally and feed it to PA as space is made available.

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