[mythtv-users] Viktor's Bob deint patch for interlaced modelines

Steve Smith st3v3.sm1th at gmail.com
Fri Jan 25 17:00:15 UTC 2008

On 22/01/2008, Mark Kendall <mark.kendall at gmail.com> wrote:
> On 23/01/2008, Tom Dexter <digitalaudiorock at gmail.com> wrote:
> > On Jan 22, 2008 9:36 AM, Steve Smith <st3v3.sm1th at gmail.com> wrote:
> > >
> > > Chris,
> > >
> > >
> > > I've been trying to figure this out myself as I currently use Viktor's
> patch
> > > on my 0.20 system.
> > > Looking at the source code for mythtv-vid and the current trunk, it
> seems
> > > that it might be in for OpenGL mode but not normal XVMC mode, so
> you'll
> > > still have to do the modification yourself....
> > While I'm at it...forgive my ignorance, but what exactly _is_ the
> > mythtv-vid branch anyway.  I never understood that one.
> There is nothing currently relevant (to this discussion) in the
> mythtv-vid branch that hasn't already been merged into trunk.
> If you have a valid 720x576 interlaced modeline working with trunk,
> try the 'Interlaced (HW 2x)' opengl deinterlacer. It may give you some
> good results (it works well for me over DVI to my LCD tv, also tested
> on my PS3 over scart to a CRT display).
> Alternatively, if your graphics card/driver combination can't cope,
> wait a few days. I should have a software/CPU based version ready
> tomorrowish.
> Need to get some sleep first - 3.30 in the morning here...
> Regards
> Mark
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Hope you got some sleep....and a chance to look at 2xBob for non-opengl....

That's one of the 2 things that's stopping me from moving to trunk from 0.20
I have 2 "hacks" in my version:
 1) "Viktors" bob hack.
 2) My own hack to workaround a bug in xvmc output, where if there's more
than one audio stream in an MPEG-TS file, output stutters and slows down to
a grind. My hack filters out the extra audio stream when it's recorded (it
simply uses the first audio stream it finds, not strictly correct but it
works!). Unfortunately the multi-rec changes have really changed the way
recordings are done and I can't find where to insert my hack yet.

Sounds like you're addressing 1), any idea if any work has gone one that
might address (2) by fixing xvmc output?
I can't see any reference in TRAC.


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