[mythtv-users] re: XvMC/HDTV/pchdtv observations
Jatin Shah
jatin_28 at yahoo.co.uk
Mon Dec 1 14:25:15 EST 2003
Steve,
I have the same problem. If it makes you feel any
better I'm running myth on an 800Mhz processor.
Without XvMC, my channel changing works a treat, but
the picture is unwatchable - it jolts too much.
With XvMC, when I change channels I get the same
problem as you - changing channels between ITV and BBC
causes an assert to occur and mythfrontend to die.
I got a bit annoyed with that so i commented out the
asserts on line 121 and another one a couple of lines
above. This stopped mythfrontend from crashing but now
the resultant picture jutters a bit after a channel
change. I have to press escape and then go back into
the TV watching mode. Still better than having to
completely restart myth.
The asserts seem to be checking for a "2 bit" within
the state but for some reason it doesnt exist....
Hopefully someone on the dev list can help.
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> Today's Topics:
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> 1. Re: PVR 350 output oddities (Torsten Schenkel)
> 2. Driving widescreen TV (Nova-T DVB) (Martin
> Brown)
> 3. Re: PVR-250 video problems, for lack of a
> better title
> (Chris Delis)
> 4. Re: Change channel problems (Isaac Richards)
> 5. Re: Breaking up very badly (DVB Nova-T)
> (Edward Wildgoose)
> 6. Re: How I burn a DVD from captured MythTV
> video (Ben Curtis)
> 7. Game controller recommendations? (Joseph A.
> Caputo)
> 8. Re: Mythtv and mythmusic and two audio outputs
> (Tony Rein)
> 9. XvMC/HDTV/pchdtv observations (Steve Brown)
> 10. Re: MythDVD - low volume, lirc lost after
> playing DVD, can't
> rip (thor)
> 11. Re: TV Overscan nVidia GF4 440mx (Ian Forde)
> 12. Re: Change channel problems (Mark Winder)
> 13. Re: Change channel problems (mythtv)
> 14. Bad quality MythTV playback (Richard J. Sands)
> 15. MythMusic, how can I play music off a CD?
> (Chris Germano)
> 16. Re: Bad quality MythTV playback (mythtv)
> 17. XvMC (DBakker at arrayasolutions.com)
> 18. xbox/knoppmyth frontend setup -- works? (H
> Brett Bolen)
> 19. Delete recordings from the Database
> (DBakker at arrayasolutions.com)
> 20. RE: Delete recordings from the Database (Dan
> Berger)
> 21. Re: Re: How I burn a DVD from captured MythTV
> video
> ( James L. Paul)
> 22. 5th Time asked...Someone please take 2 minutes
> to answer. (mythtv)
> 23. Re: 5th Time asked...Someone please take 2
> minutes to answer.
> ( James L. Paul)
> 24. Re: 5th Time asked...Someone please take 2
> minutes to
> answer. (mythtv)
> 25. RE: PVR-250 video problems, for lack of a
> better title
> (Dan Berger)
> 26. Re: 5th Time asked...Someone please take 2
> minutes to
> answer. (Chris Petersen)
> 27. mythweb 0.11 ...previews have disappeared
> (and)
> 28. Re: Nvidia interlacing (Clyde Stubbs)
> 29. Re: Game controller recommendations? (Joe
> Votour)
> 30. Re: mythweb 0.11 ...previews have disappeared
> (Chris Petersen)
> 31. Re: 5th Time asked...Someone please take 2
> minutesto answer.
> (mythtv)
> 32. Re: PVR 350 output oddities (David Engel)
> 33. Requesting help w/DirecTV wiring to PVR-250
> (Romel Llarena)
>
>
>
----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 30 Nov 2003 22:50:46 +0100
> From: Torsten Schenkel <torsten.schenkel at web.de>
> Subject: Re: [mythtv-users] PVR 350 output oddities
> To: Discussion about mythtv
> <mythtv-users at mythtv.org>
> Message-ID:
> <1070229046.9425.37.camel at indiana.tttathome.org>
> Content-Type: text/plain
>
> On Sun, 2003-11-30 at 22:41, Isaac Richards wrote:
> > On Sunday 30 November 2003 02:07 pm, David Engel
> wrote:
> > >
> > > First, when in sticky fast forward or rewind
> mode, the OSD time
> > > display updates but the video usually doesn't
> update until I go back
> > > to play mode.
> > >
> > > Second, and probably related, when I try to move
> around when the video
> > > is paused, either from pressing pause or
> entering edit mode, the video
> > > doesn't get updated.
> >
> > They're slightly different -- the first is that
> we're seeking fast enough that
> > the decoder isn't getting enough time to do all of
> its buffering, and so
> > doesn't display anything. Second is that I
> haven't figured out if it's
> > possible to tell it to stop after showing one
> specific frame.
>
> The ivtv driver has ioctls to enable ffw and rewind
> with smooth video
> display. I don't know if there is something that can
> be done about the
> edit mode, this is unusable with the pvr350 at the
> moment.
>
> Enabling ffw and rew in h/w would cost a second
> engine specifically for
> the pvr, I don't know if this is what Isaac will go
> for.
>
> > > Third, this one is kind of hard to describe
> because it happens so fast
> > > but I'll try. When I skip forward or back in
> play mode, Before
> > > resuming at the new location, the video is
> shifted about 1/4 to 1/3
> > > left on the screen with some previous video
> showing through on the
> > > right side.
> >
> > Yeah, same here. Try capturing at 720xX, that may
> help. It's an artifact of
> > the decoder (telling it to display the last shown
> frame after it's stopped
> > decoding) after a seek. I can make it be all
> black, but that didn't feel
> > right when I tested with things.
>
> 720 p wide capturing does help with that. This way
> you can skip nicely
> through the video. I don't use the ffw and rew very
> much, actually.
>
> Torsten
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 01 Dec 2003 08:53:45 +1100
> From: Martin Brown <martin.brown at macquarie.com>
> Subject: [mythtv-users] Driving widescreen TV
> (Nova-T DVB)
> To: mythtv-users at mythtv.org
> Message-ID: <3FCA66E9.9040306 at macquarie.com>
> Content-Type: text/plain; charset=us-ascii;
> format=flowed
>
> Anyone know how to get a full widescreen (16:9)
> picture from MythTV as broadcast
> over DVB? Is this a DVB tuner card issue?
>
> Thanks,
> Martin Brown
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sun, 30 Nov 2003 15:54:51 -0600
> From: Chris Delis <cedelis at uillinois.edu>
> Subject: Re: [mythtv-users] PVR-250 video problems,
> for lack of a
> better title
> To: Discussion about mythtv
> <mythtv-users at mythtv.org>
> Message-ID: <20031130215451.GA869 at uillinois.edu>
> Content-Type: text/plain; charset=us-ascii
>
> On Sun, Nov 30, 2003 at 03:54:42PM -0500, Dan Berger
> wrote:
> >
> > Finally, here's the meat:
> >
>
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