Login | Register For Free | Help
Search for: (Advanced)

Mailing List Archive: MythTV: Users

PVR-350 vs FX-5200 TVOut

 

 

First page Previous page 1 2 3 4 5 Next page Last page  View All MythTV users RSS feed   Index | Next | Previous | View Threaded


brian at interlinx

Feb 15, 2005, 12:06 PM

Post #26 of 114 (5830 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, 2005-02-15 at 15:00 -0500, Isaac Richards wrote:
> Huh? Do you have any idea what you're talking about,

A little. I have been mucking with PVR software and TV-Out stuff for
about 4 years now. I have been a long time user of Freevo on DirectFB
so I know what properly formatted TV-Out looks like. It looks just like
TV, not like X11 @ 800x600 on the TV.

> or are you just making
> things up as you go?

I'm not trying to pick a fight here Isaac. You seem to have gotten
offended somehow. Notice I said I was a long time user of Freevo. Now
I am a user of MythTV. It is (IMHO) much better than Freevo, with the
exception of G400 TV-Out support. I am trying to help with that effort,
not hurt it.

> Qt has absolutely nothing to do with the OSD in mythtv.

So, the whole GUI that you get when mythtv starts up is not written on
the QT toolkit?

What exactly is QT used for in mythtv then?

b.
Attachments: signature.asc (0.18 KB)


lists at ebourne

Feb 15, 2005, 12:08 PM

Post #27 of 114 (5822 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, 2005-02-15 at 14:44 -0500, Brian J. Murrell wrote:
> But AFAIK, X11 does not support vsyncing. There is no way for an X11
> application to know when the vsync pulse has hit so it can't really know
> when to frame flip.

It's possible with opengl etc, but I don't know the details, and it
isn't supported on matrox.

You can also hack mythtv to check the horizontal scan line count
register (0x3c48) directly from the video output code, and get it to
busy-wait until the start of frame. This can be made to work ok, but is
never going to make it into the myth code for good reason.

> Also the video hardware has to be able to encode to TV-Out in an
> interlaced overscanned mode. I have only seen the G400 able to do this
> properly with DirectFB's help. matroxset and X11 and the framebuffer
> don't do it properly.

No, this works under X too if you set it up right. You need to disable
interlacing in mythtv, of course. Also use 16 bit RGB due to PCI bus
bandwidth in 32 bit RGB.

Cheers,

Martin.


dan.littlejohn at gmail

Feb 15, 2005, 12:23 PM

Post #28 of 114 (5839 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

Could someone provide a run down of where are the settings are made.
As I understand it, there are settings in the xorg.conf file (I have
only gotten the fx5200 to do 800x600, 640x480, 320x240) and in the
setup menu in Myth (setup->? for bob and 720x480). Are those the only
two places to worry about?

Dan



On Tue, 15 Feb 2005 19:52:19 +0100, Jeroen Brosens <jeroen [at] fotoniq> wrote:
> Now use your video card's TV-out, enable Xv (which is generally hardware
> accelerated) and set the resolution to 720x576 if you are in PAL land or
> 720x480 for NTSC and use the bob deinterlacer. Now you have the same fluid
> and smooth motion as TV with a sharp image. The trick is, that the bob
> deinterlacer spits out frames at the same rate that TV's do with fields
> (interlaced, half frames) while other deinterlacers do not.
>
> I understand that the 350 is terribly slow on other material thatn MPEG-2
> since it uses a frambuffer. So much for XviD/etc watching.
>
> -- Jeroen
>
> Ronald Kohsman wrote:
> I concur with John. Very smooth and good clarity. Hard tell the diff from
> normal tele. -r -----Original Message----- From:
> mythtv-users-bounces [at] mythtv [mailto:mythtv-users-bounces [at] mythtv] On
> Behalf Of John Kuhn Sent: Tuesday, February 15, 2005 1:17 PM To: Discussion
> about mythtv Subject: Re: [mythtv-users] PVR-350 vs FX-5200 TVOut I honestly
> have yet to see a TV-Out from a card compare to the 350.. i have tried the
> GF4mx's and also have a 5200.. everything seems blurry and the colors are
> washed out.. on the 350 everything looks like it should and it can keep up
> very well with tickers and fast motion vid.. --John
> I finally got my computer supplier to order me a PVR-350 card for my
> upcoming myth box. I also thought about getting a FX-5200 with TV-Out to
> hook to my television. An I better or worse off using the tv-out on the
> pvr-350 or should I use
> the FX-5200. Purchasing both cards right now is a bit of a moot point, as I
> plan to have a backend / front end system in the future. Thanks. -=/>Thom
> ----------------------------------------------------------------------- -
> _______________________________________________ mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> _______________________________________________ mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> ________________________________
> _______________________________________________ mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
>


ijr at case

Feb 15, 2005, 12:40 PM

Post #29 of 114 (5827 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tuesday 15 February 2005 03:06 pm, Brian J. Murrell wrote:
> So, the whole GUI that you get when mythtv starts up is not written on
> the QT toolkit?
>
> What exactly is QT used for in mythtv then?

Only the non-video portions of the UI are drawn by Qt. Since that's by
definition not video playback, and isn't being displayed at video frame
rates, it has absolutely no need to know anything about the vsync or anything
else, really, aside from what resolution + dpi to display at.

Please, get a clue before spouting off extremely inaccurate comments.

Isaac
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users


papenfuss at juneau

Feb 15, 2005, 12:50 PM

Post #30 of 114 (5815 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

> But AFAIK, X11 does not support vsyncing. There is no way for an X11
> application to know when the vsync pulse has hit so it can't really know
> when to frame flip.
>
> Also the video hardware has to be able to encode to TV-Out in an
> interlaced overscanned mode. I have only seen the G400 able to do this
> properly with DirectFB's help. matroxset and X11 and the framebuffer
> don't do it properly.
>
I don't know what you're trying to say about an "interlaced
overscanned mode." I don't know about TVout cards, but there are lots of
cards that can output 480i on the VGA port. It's almost exactly 1/2 VGA
(640x480) speed, so the quality is excellent... it just needs to be
"tv-encoded." That doesn't affect the VSYNC issue.

>> Right now I need to do
>> deinterlacing or I get tearing.
>
> Yup. Exactly.
It's weird though... one would think that with a lack of vsync,
there'd be a "tearing vertical roll." There isn't in my setup... the
tearpoint is always at the same location. Quite odd.

-Cory

*************************************************************************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
*************************************************************************


papenfuss at juneau

Feb 15, 2005, 12:53 PM

Post #31 of 114 (5833 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

> You can also hack mythtv to check the horizontal scan line count
> register (0x3c48) directly from the video output code, and get it to
> busy-wait until the start of frame. This can be made to work ok, but is
> never going to make it into the myth code for good reason.
>
It sounds interesting... a sort of "software hack" to phoney up
VSYNC. IIRC VSYNC support is enabled in MythTV now, but I'm not sure
which cards it supports or how to enable it. NVidia only?

> No, this works under X too if you set it up right. You need to disable
> interlacing in mythtv, of course. Also use 16 bit RGB due to PCI bus
> bandwidth in 32 bit RGB.
>
Disable [de]interlacing you mean?

-Cory

*************************************************************************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
*************************************************************************


ijr at case

Feb 15, 2005, 12:54 PM

Post #32 of 114 (5812 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tuesday 15 February 2005 03:50 pm, Cory Papenfuss wrote:
> It's weird though... one would think that with a lack of vsync,
> there'd be a "tearing vertical roll." There isn't in my setup... the
> tearpoint is always at the same location. Quite odd.

Are you running the video output on a 2nd head? XvPutImage should be syncing
it automatically (so no tearing), but this doesn't work in a multi-headed
situation. If using an nvidia card, there's also a setting in the
nvidia-settings app to enable/disable this, but it's enabled by default.

Isaac
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users


papenfuss at juneau

Feb 15, 2005, 12:56 PM

Post #33 of 114 (5815 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, 15 Feb 2005, Gabe Rubin wrote:

> I understand the general consensus is pvr output > video card with
> s-vid out, but what about a regular video card with a VGA->Composite
> converter. Would that rival the pvr output with the added bonus of
> playing any format thrown at it?
>
Yes, provided the converter doesn't suck. I'm pretty sure that
most of the low end ones are as bad (or worse) than the built-in vid card
ones. Remember, those scanline converters go:
[D->A from VGA]->A->D->scale->temporally interpolate->A

Lots of places for it to suck.

-Cory

*************************************************************************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
*************************************************************************


ijr at case

Feb 15, 2005, 12:57 PM

Post #34 of 114 (5819 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tuesday 15 February 2005 03:53 pm, Cory Papenfuss wrote:
> > You can also hack mythtv to check the horizontal scan line count
> > register (0x3c48) directly from the video output code, and get it to
> > busy-wait until the start of frame. This can be made to work ok, but is
> > never going to make it into the myth code for good reason.
>
> It sounds interesting... a sort of "software hack" to phoney up
> VSYNC. IIRC VSYNC support is enabled in MythTV now, but I'm not sure
> which cards it supports or how to enable it. NVidia only?

Older nvidia drivers (native implementation), any driver + xserver that
supports the GLX_SGI_video_sync OpenGL extension (newer nvidia drivers & some
ati I believe), and a DRM method (unichrome driver, maybe a couple others,
some of the opensource ati drivers).

Isaac
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users


jason.macpherson at gmail

Feb 15, 2005, 1:00 PM

Post #35 of 114 (5821 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

I orignally got a pvr-350. Now I realize I should have saved myself a
few bucks and gone with the pvr-250.

People use thier myth boxes in different ways. But I always felt the
great thing about myth is you can do much more than watch TV. Myth
does games, play video files, DVD, video conferencing. Any
off-the-self DVR can do that. I'd go with an pvr-250 and an Nvidia
card if I where you.


thom at customnetworks

Feb 15, 2005, 1:07 PM

Post #36 of 114 (5824 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, 2005-15-02 at 16:00 -0500, Jå§òÑ M@¢þhè®$Øñ wrote:
> I orignally got a pvr-350. Now I realize I should have saved myself a
> few bucks and gone with the pvr-250.
>
> People use thier myth boxes in different ways. But I always felt the
> great thing about myth is you can do much more than watch TV. Myth
> does games, play video files, DVD, video conferencing. Any
> off-the-self DVR can do that. I'd go with an pvr-250 and an Nvidia
> card if I where you.

Someone told me, or I read somewhere, that with the 350 has dual tuners.

But also, the price difference is $30 Canadian for me to get either
card. The 250 is $199 at BestBuy and the 350 is $230 for me from my
computer hardware supplier.

I thought the 350 would be better, or at least the extra few bucks.

Thanks.

-=/>Thom


jason.macpherson at gmail

Feb 15, 2005, 1:09 PM

Post #37 of 114 (5829 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

> Any off-the-self DVR can do that.

I didn't mean to say that all DVRs can play games and videos.
I meant to say any DVR can watch record and play TV. Myth can do so
much more, so why go with a pvr-350 tv-out?

I really should prove read before I post ;)


-Jå§òÑ M@¢þhè®$Øñ
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users


fenn at stanford

Feb 15, 2005, 1:21 PM

Post #38 of 114 (5821 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, Feb 15, 2005 at 03:56:14PM -0500, Cory Papenfuss wrote:
> On Tue, 15 Feb 2005, Gabe Rubin wrote:
>
> >I understand the general consensus is pvr output > video card with
> >s-vid out, but what about a regular video card with a VGA->Composite
> >converter. Would that rival the pvr output with the added bonus of
> >playing any format thrown at it?
> >
> Yes, provided the converter doesn't suck. I'm pretty sure that
> most of the low end ones are as bad (or worse) than the built-in vid card
> ones. Remember, those scanline converters go:
> [D->A from VGA]->A->D->scale->temporally interpolate->A
>

As an addendum, many newer TVs (particularly HD) tend to support DVI
input - has anyone used this successfully, and more importantly, with
good results?

Sorry if this is a naive question, I'm still learning much of this.

Regards,
Tim

--
Morals? I eat communism and $h!t America, brother. --Seanbaby


paulk at parlorcity

Feb 15, 2005, 1:21 PM

Post #39 of 114 (5831 views)
Permalink
RE: PVR-350 vs FX-5200 TVOut [In reply to]

Just my opinion, but...

No matter what else you can do with your PVR, if TV doesn't look like
TV, it's no good to me. Again - Just my opinion. And yes, we don't all
use them for the same things...

Paul K


joevph at yahoo

Feb 15, 2005, 1:23 PM

Post #40 of 114 (5848 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

The PVR-350 has dual tuners, but one of them is for
TV, and the other is for radio (I don't know if it's
FM only, or AM also).

-- Joe

--- Thom Paine <thom [at] customnetworks> wrote:

> On Tue, 2005-15-02 at 16:00 -0500, Jå§òÑ M@¢þhè®$Øñ
> wrote:
> > I orignally got a pvr-350. Now I realize I should
> have saved myself a
> > few bucks and gone with the pvr-250.
> >
> > People use thier myth boxes in different ways.
> But I always felt the
> > great thing about myth is you can do much more
> than watch TV. Myth
> > does games, play video files, DVD, video
> conferencing. Any
> > off-the-self DVR can do that. I'd go with an
> pvr-250 and an Nvidia
> > card if I where you.
>
> Someone told me, or I read somewhere, that with the
> 350 has dual tuners.
>
> But also, the price difference is $30 Canadian for
> me to get either
> card. The 250 is $199 at BestBuy and the 350 is $230
> for me from my
> computer hardware supplier.
>
> I thought the 350 would be better, or at least the
> extra few bucks.
>
> Thanks.
>
> -=/>Thom
>
>
> > _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
>
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>





__________________________________
Do you Yahoo!?
Yahoo! Mail - You care about security. So do we.
http://promotions.yahoo.com/new_mail


papenfuss at juneau

Feb 15, 2005, 1:26 PM

Post #41 of 114 (5831 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, 15 Feb 2005, Isaac Richards wrote:

> On Tuesday 15 February 2005 03:50 pm, Cory Papenfuss wrote:
>> It's weird though... one would think that with a lack of vsync,
>> there'd be a "tearing vertical roll." There isn't in my setup... the
>> tearpoint is always at the same location. Quite odd.
>
> Are you running the video output on a 2nd head? XvPutImage should be syncing
> it automatically (so no tearing), but this doesn't work in a multi-headed
> situation. If using an nvidia card, there's also a setting in the
> nvidia-settings app to enable/disable this, but it's enabled by default.
>
No... it's always been on a singlehead. Now that I think about
it, however, I'm not sure if I've tried it since I switched to an Nvidia
card with proprietary driver. I used to use a r128 Gatos. I'll check for
sure tonight and make sure it's still broken. It should "Just Work" if
the SGI_vsync whatever extension is there, though, eh?

-Cory

*************************************************************************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
*************************************************************************


geckofiend at gmail

Feb 15, 2005, 1:27 PM

Post #42 of 114 (5833 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, 15 Feb 2005 16:21:21 -0500, Paul K <paulk [at] parlorcity> wrote:
> Just my opinion, but...
>
> No matter what else you can do with your PVR, if TV doesn't look like
> TV, it's no good to me. Again - Just my opinion. And yes, we don't all
> use them for the same things...

My Chaintech nForce2 based Geforce 4 produces output that "looks like TV".


gaberubin at gmail

Feb 15, 2005, 1:27 PM

Post #43 of 114 (5832 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

> Someone told me, or I read somewhere, that with the 350 has dual tuners.
>
Somone told you wrong. I believe there is a new card that has dual
tuners, but the 350 is not such a beast.

I personally use the pvr-350, and it does have pretty good output (on
a crappy tv, so hard to get a good read on that). I do regret not
having the ability to play divx or other formats, but I can play vcd
and svcd from my windows box through the pvr with no problem. I
specified the internal player instead of mplayer or xine to do this,
and aside from not being able to skip around that well, it works fine
output wise.

When I do upgrade the box, or add another, I will likely get one with
a different vid card (or better yet, just get a tv with vga or dvi
inputs).

--
Email me if you want a gmail account, I have invites.


ijr at case

Feb 15, 2005, 1:33 PM

Post #44 of 114 (5834 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tuesday 15 February 2005 04:26 pm, Cory Papenfuss wrote:
> On Tue, 15 Feb 2005, Isaac Richards wrote:
> > On Tuesday 15 February 2005 03:50 pm, Cory Papenfuss wrote:
> >> It's weird though... one would think that with a lack of vsync,
> >> there'd be a "tearing vertical roll." There isn't in my setup... the
> >> tearpoint is always at the same location. Quite odd.
> >
> > Are you running the video output on a 2nd head? XvPutImage should be
> > syncing it automatically (so no tearing), but this doesn't work in a
> > multi-headed situation. If using an nvidia card, there's also a setting
> > in the nvidia-settings app to enable/disable this, but it's enabled by
> > default.
>
> No... it's always been on a singlehead. Now that I think about
> it, however, I'm not sure if I've tried it since I switched to an Nvidia
> card with proprietary driver. I used to use a r128 Gatos. I'll check for
> sure tonight and make sure it's still broken. It should "Just Work" if
> the SGI_vsync whatever extension is there, though, eh?

Well, with Xv and a nvidia card and singlehead, there shouldn't be any tearing
whatsoever on video playback, unless you disable that through the
nvidia-settings app. That's built in to the driver.

Tearing, though is separate from the vsync support code in myth, which uses
the vsync info it gets for more accurate delivery timing. You do have to
enable the opengl sync method in settings.pro for that vsync method to work,
though.

Isaac
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users


brad+myth at templetons

Feb 15, 2005, 1:43 PM

Post #45 of 114 (5824 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, Feb 15, 2005 at 04:07:45PM -0500, Thom Paine wrote:
> Someone told me, or I read somewhere, that with the 350 has dual tuners.
>
> But also, the price difference is $30 Canadian for me to get either
> card. The 250 is $199 at BestBuy and the 350 is $230 for me from my
> computer hardware supplier.
>
> I thought the 350 would be better, or at least the extra few bucks.

It is a shame how much Canadian stores rip you off, not enough competition.
(Even for ATI products which are from a Canadian company.)

The WinTV-PVR-150-MCE for example, if you don't want a remote control,
is $65 USD at buy.com and $83 with the remote control. However the
drivers for this are less mature, and probably more work for you.
Soon, however, this will be the card of choice, I suspect -- though that
USB device that also does MP4 that was being talked about here may also
be popular.

Nvidia GF4 cards with (I think) quite decent TV-out are $35.


minh_duong at yahoo

Feb 15, 2005, 2:00 PM

Post #46 of 114 (5838 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

Does the FX5200 cards have mpeg2 hardware decoders?
nVidia's site isn't clear on this. I think that some
of them might, but I think it's only on the mobile
versions. Anybody got any info on this?

--- Brad Templeton <brad+myth [at] templetons> wrote:

> On Tue, Feb 15, 2005 at 04:07:45PM -0500, Thom Paine
> wrote:
> > Someone told me, or I read somewhere, that with
> the 350 has dual tuners.
> >
> > But also, the price difference is $30 Canadian for
> me to get either
> > card. The 250 is $199 at BestBuy and the 350 is
> $230 for me from my
> > computer hardware supplier.
> >
> > I thought the 350 would be better, or at least the
> extra few bucks.
>
> It is a shame how much Canadian stores rip you off,
> not enough competition.
> (Even for ATI products which are from a Canadian
> company.)
>
> The WinTV-PVR-150-MCE for example, if you don't want
> a remote control,
> is $65 USD at buy.com and $83 with the remote
> control. However the
> drivers for this are less mature, and probably more
> work for you.
> Soon, however, this will be the card of choice, I
> suspect -- though that
> USB device that also does MP4 that was being talked
> about here may also
> be popular.
>
> Nvidia GF4 cards with (I think) quite decent TV-out
> are $35.
>
> > _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
>
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>




__________________________________
Do you Yahoo!?
Meet the all-new My Yahoo! - Try it today!
http://my.yahoo.com


jeroen at fotoniq

Feb 15, 2005, 3:15 PM

Post #47 of 114 (5835 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

>
>
>Well, with Xv and a nvidia card and singlehead, there shouldn't be any tearing
>whatsoever on video playback, unless you disable that through the
>nvidia-settings app. That's built in to the driver.
>
>Tearing, though is separate from the vsync support code in myth, which uses
>the vsync info it gets for more accurate delivery timing. You do have to
>enable the opengl sync method in settings.pro for that vsync method to work,
>though.
>
>Isaac
>______________________________________________
>
>

Is there or will there be a way for MythTV to have vsync support without
OpenGL, DRM, etc.? Like myself there must be a great number of people
that built their HTPC around a barebone which looks good in the living
room. Most of the times, these don't have high-end ATi or nVidia video
chips OR a video upgrade option. Also, TV-outs are not always capable of
processinginterlaced material, which leaves the need for either a
hardware workaround (VGA to RGB converter) or good software
deinterlacing WITH vsync support.

I am still trying to get a satisfactory, full frame rate and most
important of all steady (!) image because the only available
deinterlacer, bobdeint, goes jittering *a lot* without proper vsync.
Sigh. As soon as my vga2rgb cable is working (read: lots of modeline
tuning) I will finally be able to watch smooth TV on my Pundit!

-- Jeroen
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users


ijr at case

Feb 15, 2005, 3:26 PM

Post #48 of 114 (5862 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tuesday 15 February 2005 06:15 pm, Jeroen Brosens wrote:
> >Well, with Xv and a nvidia card and singlehead, there shouldn't be any
> > tearing whatsoever on video playback, unless you disable that through the
> > nvidia-settings app. That's built in to the driver.
> >
> >Tearing, though is separate from the vsync support code in myth, which
> > uses the vsync info it gets for more accurate delivery timing. You do
> > have to enable the opengl sync method in settings.pro for that vsync
> > method to work, though.
> >
> >Isaac
> >______________________________________________
>
> Is there or will there be a way for MythTV to have vsync support without
> OpenGL, DRM, etc.? Like myself there must be a great number of people
> that built their HTPC around a barebone which looks good in the living
> room. Most of the times, these don't have high-end ATi or nVidia video
> chips OR a video upgrade option. Also, TV-outs are not always capable of
> processinginterlaced material, which leaves the need for either a
> hardware workaround (VGA to RGB converter) or good software
> deinterlacing WITH vsync support.

Talk to the driver people. Anything can be added, but not without some sort
of driver support.

Isaac
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users


mythtv at salfter

Feb 15, 2005, 10:27 PM

Post #49 of 114 (5813 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, Feb 15, 2005 at 01:21:17PM -0800, Tim Fenn wrote:
> As an addendum, many newer TVs (particularly HD) tend to support DVI
> input - has anyone used this successfully, and more importantly, with
> good results?

It works great on the 30" widescreen LCD I'm using...all it took was a
modeline to generate 1280x768 (native resolution).

_/_
/ v \ Scott Alfter (remove the obvious to send mail)
(IIGS( http://alfter.us/ Top-posting!
\_^_/ rm -rf /bin/laden >What's the most annoying thing on Usenet?


papenfuss at juneau

Feb 16, 2005, 3:08 AM

Post #50 of 114 (5822 views)
Permalink
Re: PVR-350 vs FX-5200 TVOut [In reply to]

On Tue, 15 Feb 2005, Minh Duong wrote:

>
> Does the FX5200 cards have mpeg2 hardware decoders?
> nVidia's site isn't clear on this. I think that some
> of them might, but I think it's only on the mobile
> versions. Anybody got any info on this?
>
No, but XvMC is a "partial" MPEG2 decoder. It helps reduce CPU
load when playing large MPEG2 (e.g. HDTV) streams.

-Cory

*************************************************************************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
*************************************************************************

First page Previous page 1 2 3 4 5 Next page Last page  View All MythTV users RSS feed   Index | Next | Previous | View Threaded
 
 


Interested in having your list archived? Contact Gossamer Threads
 
  Web Applications & Managed Hosting Powered by Gossamer Threads Inc.