[mythtv-commits] Ticket #4764: alsa buffer problem introduced in 15893
MythTV
mythtv at cvs.mythtv.org
Tue Mar 11 00:21:28 UTC 2008
#4764: alsa buffer problem introduced in 15893
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Reporter: manwe | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: 0.22
Component: mythtv | Version: head
Severity: medium | Resolution:
Mlocked: 0 |
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Comment(by markspieth):
did some investigating over the weekend and I think I have a better handle
on things.
One of my updates cvhanged my deinterlacing settings to greedy (on a TV!)
and stopped things from working on my xbox. took me a while to solve that
but I did find that fragment and periodtime and buffertime dont have to be
related.
so the solution is to choose fragment as 6144 for 2ch (scaled for 6ch)
periodtime as something low (I chose 25ms) and buffer time something large
enough.
From other posts I chose 16*25 which will generally alloc all of the 64K
that (my) alsa uses as max.
2 patches are attached as mythmusic was impacted as well. The 2sec limit
on AddSample has been removed as it seemed to impact some things and a
separate interface and test was put in mythmusic. benefits are that mm
changes faster as the limit has been set at 500ms and videos can have a
bigger audiosync adjustment.
please test and see if it works in the various modes (esp. spdif)
--
Ticket URL: <http://svn.mythtv.org/trac/ticket/4764#comment:16>
MythTV <http://svn.mythtv.org/trac>
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