[Mjpeg-users] Buz update: problems with pass_through=1

[Orion P. <opo...@cq...>]

Okay, back with a bit more information today.  This first item is that it
appears that passing "default_norm=1" to the driver is very important for
me.  This appears to clear up the buffer sync timeout problem when recording
at decimations other than 1.

However, things seem pretty messed up with pass_through=1.  When I boot up,
output from the Buz looks good.  When I start xawtv though, it's screen
looks okay but the output from the Buz is bad.  It looks like it is shifted,
overlayed with another shifted image and has a green cast.  Stopping xawtv
does not fix the output.

Running lavrec with xawtv running caused the xawtv image to shift about 1/4
screen to the right, and I got the timeout on buffer sync error from lavrec.

So, I reloaded the driver.  Tried running lavrec without xawtv running and
got purely black image.  The output of the Buz went black too.

With pass_through=0 things are much better.  The idle output is green with
an occasional flicker (at least on the projector I'm using).  Recording
looks good.  Very little dropped/out-of-sync frames (default -q = 50).
However, eventually xawtv freaks out and will not display a good image.
Restarting xawtv has no effect.  Buz output and recording remains good
though.

Running xawtv 3.65.  Haven't looked for a newer version yet.  Hard to say
it's a problem with it though since problems persist even after a
kill/restart of the program.

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Orion Poplawski, OPo...@cq..., Tel: (720)946-5917, Fax: (303)440-4507
CQG, Inc., 4949 Pearl East Circle, Suite 104, Boulder, CO 80301