[mythtv-users] PVR-350 output support being dropped!

[Jeff Simpson]

On 3/22/06, Daniel A. Segel <mythtv at archer-segel.com> wrote:
>
> I tried it again tonight with xv and it's still not really usable. The
> image isn't jumpy, it's more like it's in slow motion, except it's not.
> It's hard to explain, but the problem is with motion - for example
> somebody walking across the screen or waving their hands around. I tried
> it with Live TV at both 720x480 and 640x480 with the same results.
>
> I *would* like to get it working better with xv because then I could use
> some of the other Myth features like time-stretch.


If you're going to use XV instead of the MPEG2 output, why not just use the
hardware acceleration on a normal nvidia card with TV out? That's the reason
that the "support" is being dropped, as far as I can tell - everything
that's more advanced than "just playing an MPEG" is difficult to maintain
with this card.

Besides, the only thing the PVR-350 has over a normal video card for output
is the MPEG2 decoding, and the only way to get the good myth features (and
to get the normal features to work) is to not use the MPEG2 decoding and
stick with XV, thus defeating the purpose.

I also recently found out that as of x.org 6.9/7.0, you can run multiple
simultaneous X sessions and have them both be active at the same time! I
haven't installed it yet (because the package structure changed and this
means major changes in gentoo), but it looks like I should be able to get as
many TV-Out cards as I want and have them all be running separately,
provided that I can assign each of them a unique input (remote or keyboard).
There goes the other benefit of the PVR-350, which was that you could have
MPEG2 decoding to TV going on while using another X-session (but not XV
display)


> John Harvey wrote:
>
> >It should just work but there is at least one resolution setting for me
> that
> >causes things to go wrong and the image to be jumpy. I have one video
> that
> >causes this and it may just be that myth is requesting a resolution that
> >provokes that problem.
> >I intend to fix this but I'm stuck rebuilding and decorating the lounge
> at
> >the moment so that's has to come first.
> >
> >JOhn
> >
> >
> >
> >>-----Original Message-----
> >>From: mythtv-users-bounces at mythtv.org
> >>[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Daniel A Segel
> >>Sent: 22 March 2006 18:52
> >>To: Discussion about mythtv
> >>Subject: Re: [mythtv-users] PVR-350 output support being dropped!
> >>
> >>I haven't tried it in a while, but on my system MythTV xv
> >>output from the 350 never looked as good as the native MPEG
> >>decoder could produce.
> >>The main problem was that it seemed to drop frames, although
> >>I'm not certain it was actually doing that - it just seemed
> >>less smooth than the native output, enough so that I always
> >>switched back. This was on an Athlon XP 1700+ system with
> >>512MB running SD only. I'll try it again tonight to see if
> >>more recent versions of MythTV are any better. I frequently
> >>use xv with xine to watch DVD images and don't notice
> >>anything wrong with the video then, so I assume it's a Myth thing.
> >>
> >>Are there any specific ivtvctl settings I should be using to
> >>make the output as good as possible?
> >>
> >>Daniel
> >>
> >>John Harvey wrote:
> >>
> >>
> >>>The 350 works ok using Xv now though and that works ok and will
> >>>continue to be supported ( I believe) since there is
> >>>
> >>>
> >>nothing that is
> >>
> >>
> >>>350 specific in that code.
> >>>
> >>>If people have problems with the Xv output I am happy to
> >>>
> >>>
> >>take a look
> >>
> >>
> >>>at that (though I am busy and the response may not be as
> >>>
> >>>
> >>fast as you would like).
> >>
> >>
> >>>John
> >>>
> >>>
> >>>
> >>>
> >>>>-----Original Message-----
> >>>>From: mythtv-users-bounces at mythtv.org
> >>>>[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Jason Garrett
> >>>>Sent: 22 March 2006 18:23
> >>>>To: Discussion about mythtv
> >>>>Subject: Re: [mythtv-users] PVR-350 output support being dropped!
> >>>>
> >>>>On 3/22/06, Jeff Simpson <llcooljeff at gmail.com> wrote:
> >>>>
> >>>>
> >>>>
> >>>>>I just happened to read through the bug reports and found this:
> >>>>>
> >>>>>http://svn.mythtv.org/trac/ticket/745
> >>>>>
> >>>>>It says that PVR-350 output support will likely be dropped
> >>>>>
> >>>>>
> >>>>>
> >>>>from later
> >>>>
> >>>>
> >>>>
> >>>>>releases of MythTV due to a lack of developers who want to
> >>>>>
> >>>>>
> >>>>>
> >>>>maintain it.
> >>>>
> >>>>
> >>>>
> >>>>>Just a heads up for anyone who owns/uses a PVR-350 or is
> >>>>>
> >>>>>
> >>>>>
> >>>>thinking of
> >>>>
> >>>>
> >>>>
> >>>>>buying one (don't)
> >>>>>
> >>>>>
> >>>>>
> >>>>Terrible news for me. I would probably have to go to some sort of
> >>>>windows alternative if 350 output is dropped. :(
> >>>>_______________________________________________
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> >>>>mythtv-users at mythtv.org
> >>>>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >>>>
> >>>>
> >>>>
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> >>>
> >>>
> >>>
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> >>
> >>
> >
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>
>
>
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