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Just how great can VDPAU be?

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mythtv at vulturest

Nov 28, 2008, 7:11 PM

Post #51 of 77 (7115 views)
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Re: Just how great can VDPAU be? [In reply to]

R. G. Newbury wrote:
> Brad DerManouelian wrote:
>> On Nov 27, 2008, at 4:24 PM, R. G. Newbury wrote:
>
>>>> Are you using Isaac's patch, your own patch or something else?
>>> Will someone please reveal where the patches for mythtv might possibly
>>> be found?
>> http://www.gossamer-threads.com/lists/mythtv/dev/358020#358020
>
> Thank you Brad. I missed the attachment on Isaac's original post, but
> it's nicely attached to the thread in gossamer...
> Geoff

The initial VDPAU patch has just been committed to trunk:
http://cvs.mythtv.org/trac/changeset/19165

Yay :)
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davilla at 4pi

Nov 29, 2008, 6:16 AM

Post #52 of 77 (7100 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

> >Has anyone been able to test on a P4 based system with a good old
>>fashion PCI card? My quick search of Newegg didn't find any AGP 8xxx
>>or newer cards, but I did find PCI cards.
>>
>>http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2000380048%201305520548%201069609642%20106791921&name=GeForce%208%20series
>>
>>Here's hoping that my MythTV system built from old parts may be
>>able to do HD.
>>-Mark
>
>ooohhh, been looking for a PCI 8400 to test VDPAU on the Intel dual
>core atom 330 ITX motherboard. Thanks. If this works, $80 for the
>atom 330 mb, $60 for the video card, +case and ps == real cheap 1080p
>capable media center.

Just an update to testing VDPAU under the atom 330 and a PCI nvidia
8400. All I can say is WOW. H.264 video content that took 45 and 160
percent CPU under the atom 330 without VDPAU takes less than 5
percent cpu with VDPAU. Not a type, that's really less than 5
percent. VDPAU == very cool.

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george_mythusers at mari1938

Nov 29, 2008, 7:52 AM

Post #53 of 77 (7085 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

Scott D. Davilla wrote:
>> >Has anyone been able to test on a P4 based system with a good old
>>> fashion PCI card? My quick search of Newegg didn't find any AGP 8xxx
>>> or newer cards, but I did find PCI cards.
>>>
>>> http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2000380048%201305520548%201069609642%20106791921&name=GeForce%208%20series
>>>
>>> Here's hoping that my MythTV system built from old parts may be
>>> able to do HD.
>>> -Mark
>> ooohhh, been looking for a PCI 8400 to test VDPAU on the Intel dual
>> core atom 330 ITX motherboard. Thanks. If this works, $80 for the
>> atom 330 mb, $60 for the video card, +case and ps == real cheap 1080p
>> capable media center.
>
> Just an update to testing VDPAU under the atom 330 and a PCI nvidia
> 8400. All I can say is WOW. H.264 video content that took 45 and 160
> percent CPU under the atom 330 without VDPAU takes less than 5
> percent cpu with VDPAU. Not a type, that's really less than 5
> percent. VDPAU == very cool.
>

That's very interesting - thanks for the update.

What's the "watchability" like with that PCI Nvidia 8400? Any
stuttering? What resolution and bitrate of H.264 content were you
testing with?

This could open up some options for people with older hardware that only
has AGP for video, not to mention lower-power (wattage) hardware, like
you seem to pursuing with the Intel Atom. I could use a PCI 8xxx video
card in place of an AGP card, and still get watchable performance on
Hi-def H.264 content, in theory.

From the notes on the patch that Isaac submitted, it looks like MPEG2
video is still not-quite visuallyoptimal, but that's probably just a
matter of time before that gets smoothed out.
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ijr at case

Nov 29, 2008, 8:05 AM

Post #54 of 77 (7102 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

On Saturday 29 November 2008 10:52:58 am George Mari wrote:
> From the notes on the patch that Isaac submitted, it looks like MPEG2
> video is still not-quite visuallyoptimal, but that's probably just a
> matter of time before that gets smoothed out.

The corruption went away with the checkin after that, I just didn't mention it
in the notes.

Isaac

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ryan.goat at gmail

Nov 29, 2008, 8:15 AM

Post #55 of 77 (7107 views)
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Re: Just how great can VDPAU be? [In reply to]

On Sat, Nov 29, 2008 at 11:05 AM, Isaac Richards <ijr [at] case> wrote:
> On Saturday 29 November 2008 10:52:58 am George Mari wrote:
>> From the notes on the patch that Isaac submitted, it looks like MPEG2
>> video is still not-quite visuallyoptimal, but that's probably just a
>> matter of time before that gets smoothed out.
>
> The corruption went away with the checkin after that, I just didn't mention it
> in the notes.
>
> Isaac
>

Wow VDPAU has gone from an unexpected announcement to, can I say,
"usable" in SVN-trunk extremely quickly. I want to say thanks to
Isaac and everybody else who contributed to this effort. I will be
downloading the newest trunk on my experimental box in short order.

I wish there was a way the MythTV community (I hate that phrase) could
show our appreciation to nvidia. Sure we can go out and buy new video
cards (I'm getting two). But it would be nice if nvidia could
actually measure how many sales this new driver has generated for
them.

--
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davilla at 4pi

Nov 29, 2008, 8:18 AM

Post #56 of 77 (7083 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

>Scott D. Davilla wrote:
>>> >Has anyone been able to test on a P4 based system with a good old
>>>> fashion PCI card? My quick search of Newegg didn't find any AGP 8xxx
>>>> or newer cards, but I did find PCI cards.
>>>>
>>>>
>>>>http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2000380048%201305520548%201069609642%20106791921&name=GeForce%208%20series
>>>>
>>>> Here's hoping that my MythTV system built from old parts may be
>>>> able to do HD.
>>>> -Mark
>>> ooohhh, been looking for a PCI 8400 to test VDPAU on the Intel dual
>>> core atom 330 ITX motherboard. Thanks. If this works, $80 for the
>>> atom 330 mb, $60 for the video card, +case and ps == real cheap 1080p
>>> capable media center.
>>
>> Just an update to testing VDPAU under the atom 330 and a PCI nvidia
>> 8400. All I can say is WOW. H.264 video content that took 45 and 160
>> percent CPU under the atom 330 without VDPAU takes less than 5
>> percent cpu with VDPAU. Not a type, that's really less than 5
>> percent. VDPAU == very cool.
>>
>
>That's very interesting - thanks for the update.
>
>What's the "watchability" like with that PCI Nvidia 8400? Any
>stuttering? What resolution and bitrate of H.264 content were you
>testing with?
>
>This could open up some options for people with older hardware that only
>has AGP for video, not to mention lower-power (wattage) hardware, like
>you seem to pursuing with the Intel Atom. I could use a PCI 8xxx video
>card in place of an AGP card, and still get watchable performance on
>Hi-def H.264 content, in theory.
>
> From the notes on the patch that Isaac submitted, it looks like MPEG2
>video is still not-quite visuallyoptimal, but that's probably just a
>matter of time before that gets smoothed out.
>_______________________________________________
>mythtv-users mailing list
>mythtv-users [at] mythtv
>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

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davilla at 4pi

Nov 29, 2008, 8:43 AM

Post #57 of 77 (7084 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

> >Scott D. Davilla wrote:
>>>> >Has anyone been able to test on a P4 based system with a good old
>>>>> fashion PCI card? My quick search of Newegg didn't find any AGP 8xxx
>>>>> or newer cards, but I did find PCI cards.
>>>>>
>>>>>
>>>>>http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2000380048%201305520548%201069609642%20106791921&name=GeForce%208%20series
>>>>>
>>>>> Here's hoping that my MythTV system built from old parts may be
>>>>> able to do HD.
>>>>> -Mark
>>>> ooohhh, been looking for a PCI 8400 to test VDPAU on the Intel dual
>>>> core atom 330 ITX motherboard. Thanks. If this works, $80 for the
>>>> atom 330 mb, $60 for the video card, +case and ps == real cheap 1080p
>>>> capable media center.
>>>
>>> Just an update to testing VDPAU under the atom 330 and a PCI nvidia
>>> 8400. All I can say is WOW. H.264 video content that took 45 and 160
>>> percent CPU under the atom 330 without VDPAU takes less than 5
>>> percent cpu with VDPAU. Not a type, that's really less than 5
>>> percent. VDPAU == very cool.
>>>
>>
>>That's very interesting - thanks for the update.
>>
>>What's the "watchability" like with that PCI Nvidia 8400? Any
>>stuttering? What resolution and bitrate of H.264 content were you
>>testing with?
>>
>>This could open up some options for people with older hardware that only
>>has AGP for video, not to mention lower-power (wattage) hardware, like
>>you seem to pursuing with the Intel Atom. I could use a PCI 8xxx video
>>card in place of an AGP card, and still get watchable performance on
>>Hi-def H.264 content, in theory.
>>
>> From the notes on the patch that Isaac submitted, it looks like MPEG2
>>video is still not-quite visuallyoptimal, but that's probably just a
> >matter of time before that gets smoothed out.

never mind this post, totally messed up the reply :)
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davilla at 4pi

Nov 29, 2008, 8:45 AM

Post #58 of 77 (7095 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

>Scott D. Davilla wrote:
>>> >Has anyone been able to test on a P4 based system with a good old
>>>> fashion PCI card? My quick search of Newegg didn't find any AGP 8xxx
>>>> or newer cards, but I did find PCI cards.
>>>>
>>>>
>>>>http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2000380048%201305520548%201069609642%20106791921&name=GeForce%208%20series
>>>>
>>>> Here's hoping that my MythTV system built from old parts may be
>>>> able to do HD.
>>>> -Mark
>>> core atom 330 ITX motherboard. Thanks. If this works, $80 for the
>>> atom 330 mb, $60 for the video card, +case and ps == real cheap 1080p
>>> capable media center.
>>
>> Just an update to testing VDPAU under the atom 330 and a PCI nvidia
>> 8400. All I can say is WOW. H.264 video content that took 45 and 160
>> percent CPU under the atom 330 without VDPAU takes less than 5
>> percent cpu with VDPAU. Not a type, that's really less than 5
>> percent. VDPAU == very cool.
>>
>
>That's very interesting - thanks for the update.
>
>What's the "watchability" like with that PCI Nvidia 8400? Any
>stuttering? What resolution and bitrate of H.264 content were you
>testing with?

testing under mplayer so I can tell what's doing what. With VDPAU,
absolutly no stuttering, the GPU is handling everything :) 720p mid
to high 4.1 profiles. Does not seem to matter, any 4.1 or below at
any bit rate seems fine. 5.1 profiles will have to wait for nvidia to
fix these.

>This could open up some options for people with older hardware that only
>has AGP for video, not to mention lower-power (wattage) hardware, like
>you seem to pursuing with the Intel Atom. I could use a PCI 8xxx video
>card in place of an AGP card, and still get watchable performance on
>Hi-def H.264 content, in theory.

That would be atom 330 (dual-core) not the previous single-core atoms
but from these tests a single core atom should also be fine.

>
> From the notes on the patch that Isaac submitted, it looks like MPEG2
>video is still not-quite visuallyoptimal, but that's probably just a
>matter of time before that gets smoothed out.

Not sure under mythtv, like I've mentioned, this is under mplayer to
reduce the dependencies. A would assume that if mplayer can do it, a
myth frontend should also be able to do it.

Remember that VDPAU has only been out for a couple of weeks so as
nvidia gets feedback and makes changes, I'm sure it will improve. And
a side note, under the dual-core atom 330, all mpeg2 is easily
handled in software decode alone. So even if there are issue with
VDPAU and mpeg2, who cares :)

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convbox at jamespurl

Nov 29, 2008, 11:01 AM

Post #59 of 77 (7073 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

On Friday 28 November 2008 21:11:23 Johan Venter wrote:
[ deletia ]
>
> The initial VDPAU patch has just been committed to trunk:
> http://cvs.mythtv.org/trac/changeset/19165
>
> Yay :)
At long last, it appears it's finally time for me to return to SVN! Like
many, I pre-ordered the HD-PVR. I used it with a Windows laptop (which was a
pain booting back into Vista, going into TitanTV to setup the show I wanted,
then arranging the laptop next to the TV/HD-PVR/DirecTV box) for awhile until
the hassle outweighed the access to HD-Net (the only channel I recorded that
wasn't already in my Myth system). I thought about going to SVN anyways once
HD-PVR support settled down. I even ordered some USB to Serial controllers
and got my Myth Box to change the channel on my DirecTV box, but since none
of my dedicated myth boxes could render the H.264 recordings, I'd be forced
to watch them on my only TV with a PS3 (or some of the more powerful
computers I have at desks--but office chairs << reclining sofa seats).
Unfortunately, there were some AC3 issues with MythTV<->PS3 UPnP (apparently
with the PS3 because a couple Sony updates back, those issues mostly sorted
themselves out). There was also the WAF to consider, which also kept me on
the -fixes branch. But, with VDPAU so close, and according to Isaac's reply
today to this thread, even working well now with MPEG2, the promise of using
my HD-PVR and being able to watch the recordings with my P4 3.0HT (and the
PCI GF8400 advertised as working) has me heading to Newegg TODAY! I wanted
to write this as a big thanks to all those, at nVidia and MythTV together,
whose work has made such a difference! We often hear the complaints,
especially on this list, about this trivial thing or that trivial thing, but
IMHO, this is hands down the best DVR, hardware solutions included. Thanks
Gang! Now to show nVidia some love, by way of Newegg. I have a total of four
cards to get--3 PCI and one PCI-x.

james
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raymond at wagnerrp

Nov 29, 2008, 11:24 AM

Post #60 of 77 (7075 views)
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Re: Just how great can VDPAU be? [In reply to]

James Purl wrote:
>
> I have a total of four cards to get--3 PCI and one PCI-x.
>
Graphics cards don't come in PCI-X form, aside form perhaps some old
high end professional hardware. I suppose you could have been talking
about PCI-eXpress, but that interconnect is so eXtreme that they decided
to follow normal English and abbreviate it PCIe... :P
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convbox at jamespurl

Nov 29, 2008, 12:59 PM

Post #61 of 77 (7053 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

On Saturday 29 November 2008 13:24:27 Raymond Wagner wrote:
> James Purl wrote:
> > I have a total of four cards to get--3 PCI and one PCI-x.
>
> Graphics cards don't come in PCI-X form, aside form perhaps some old
> high end professional hardware. I suppose you could have been talking
> about PCI-eXpress, but that interconnect is so eXtreme that they decided
> to follow normal English and abbreviate it PCIe... :P

Thanks for assuming that I am one of "they" that use normal English
abbreviations and am not talking about high end professional hardware. I
take the first remark as a compliment and am glad you saw through the
incorrectness on the latter. WAF would've dropped tremendously if I'd gotten
the wrong thing ;)

I'll fade back into the lurker lair, now..... :)
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nick.rout at gmail

Nov 29, 2008, 6:56 PM

Post #62 of 77 (7038 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

On Sun, Nov 30, 2008 at 5:45 AM, Scott D. Davilla <davilla [at] 4pi> wrote:
>>Scott D. Davilla wrote:
> Not sure under mythtv, like I've mentioned, this is under mplayer to
> reduce the dependencies. A would assume that if mplayer can do it, a
> myth frontend should also be able to do it.
>
> Remember that VDPAU has only been out for a couple of weeks so as
> nvidia gets feedback and makes changes, I'm sure it will improve. And
> a side note, under the dual-core atom 330, all mpeg2 is easily
> handled in software decode alone. So even if there are issue with
> VDPAU and mpeg2, who cares :)
>

people whose broadcasters broadcast in h264 would care!
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nico at youplala

Nov 29, 2008, 7:24 PM

Post #63 of 77 (7047 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

Le dimanche 30 novembre 2008 � 15:56 +1300, Nick Rout a �crit :
> On Sun, Nov 30, 2008 at 5:45 AM, Scott D. Davilla <davilla [at] 4pi>
> wrote:
> >>Scott D. Davilla wrote:
> > Not sure under mythtv, like I've mentioned, this is under mplayer to
> > reduce the dependencies. A would assume that if mplayer can do it, a
> > myth frontend should also be able to do it.
> >
> > Remember that VDPAU has only been out for a couple of weeks so as
> > nvidia gets feedback and makes changes, I'm sure it will improve.
> And
> > a side note, under the dual-core atom 330, all mpeg2 is easily
> > handled in software decode alone. So even if there are issue with
> > VDPAU and mpeg2, who cares :)
> >
>
> people whose broadcasters broadcast in h264 would care!

No, they would not, as they would be taken care of by VDPAU, and would
not be worried by eventual MPEG-2 issues.

nico

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newbury at mandamus

Nov 30, 2008, 5:18 PM

Post #64 of 77 (6977 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

Johan Venter wrote:
> R. G. Newbury wrote:
>> Brad DerManouelian wrote:
>>> On Nov 27, 2008, at 4:24 PM, R. G. Newbury wrote:
>>>>> Are you using Isaac's patch, your own patch or something else?
>>>> Will someone please reveal where the patches for mythtv might possibly
>>>> be found?
>>> http://www.gossamer-threads.com/lists/mythtv/dev/358020#358020
>> Thank you Brad. I missed the attachment on Isaac's original post, but
>> it's nicely attached to the thread in gossamer...
>> Geoff
>
> The initial VDPAU patch has just been committed to trunk:
> http://cvs.mythtv.org/trac/changeset/19165

We will need some other chipset users to test this. My results were NOT
good using SVN 19110 + patch on an Intel system.

I have an Intel 945GM chipset in my mythbox. I'm using the latest xf85
Intel Version 2.5.1 driver. But I picked up an Nvidia 8400GS card to
take advantage of this. But before I put in, I tried the 'upgrade',...
Oooops. Same hardware and setup as SVN trunk 18408 would NOT play either
SD or HD (I was using High Quality). Some messing got analog SD to play,
using XvMC (on Intel remember) but the system was NOT happy, and there
was no OSD. Anything digital resulted in an instant seg fault. And
nothing useful in the log.

I re-downloaded SVN 19110 (forgetting that I could reverse the patch),
but it exhibited the same effect...and it was now looking for
/dev/nvidia0, and seg-faulting when it was not found...

I eventually reverted to 18408. (Still with a funny problem, too.. see
other thread).

So, have there been 'bad' changes to trunk since 18408 which kill Intel,
or did I miss something when I re-installed....(yes, it turns out I
'make distclean' more often than I clean my teeth...)
Anyone else out there, using OTHER chipsets, have any test results from
using the vdpau enabled code?

Geoff

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newbury at mandamus

Nov 30, 2008, 6:01 PM

Post #65 of 77 (6965 views)
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Re: Just how great can VDPAU be? [In reply to]

> The initial VDPAU patch has just been committed to trunk:
> http://cvs.mythtv.org/trac/changeset/19165

I forgot to note, in my prior post about possibly problems with an Intel
chipset, is that the recordings which would NOT play in myth were still
playable with mplayer. So it is not a driver/hardware problem.
The only thing that changed from my prior setup was the shift from XVN
18408 to 19110 +/- the vdpau patch.

Geoff
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steve at heistand

Nov 30, 2008, 6:33 PM

Post #66 of 77 (6981 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

so for kicks I updated to the latest trunk, installed the
beta nvidia drivers and compiled in the vdpau options.
aside from a bit of an issue compiling the latest hdpvr
stuff all went well. But that aside since everything worked
just fine before without vdpau how will I know/notice
the supposed advantage of using vdpau?

as a side note my favored theme (project greyhem)
in the latest build is not so good anymore. though
the other themes have issues as well. mostly the
browse videos area..
not so much a question here but a comment...

--
"Why is it so hot inside this handbasket?"
--
Steve Heistand
steve [at] heistand
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myth at dermanouelian

Nov 30, 2008, 6:38 PM

Post #67 of 77 (6978 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

On Nov 30, 2008, at 6:33 PM, Steve Heistand wrote:

> so for kicks I updated to the latest trunk, installed the
> beta nvidia drivers and compiled in the vdpau options.
> aside from a bit of an issue compiling the latest hdpvr
> stuff all went well. But that aside since everything worked
> just fine before without vdpau how will I know/notice
> the supposed advantage of using vdpau?

You have to choose to use the VDPAU playback settings to use them. top
will show you about 5% cpu usage when playing back content with it.
Since you are using svn, you're also following the -dev and -commit
lists, so you already know this.

> as a side note my favored theme (project greyhem)
> in the latest build is not so good anymore. though
> the other themes have issues as well. mostly the
> browse videos area..
> not so much a question here but a comment...

Yes, all 3rd party themes that are not explicitly updated to work with
the new UI will be horribly broken in unforseen ways. Use one of the
themes that gets updated with UI changes. Since you're using svn, that
must mean you are following the -dev and -commit lists so you already
know which ones those are.

-Brad

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steve at heistand

Nov 30, 2008, 7:24 PM

Post #68 of 77 (6967 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

Brad DerManouelian <myth [at] dermanouelian>, said on Sun Nov 30, 2008 [06:38:45 PM]:
} On Nov 30, 2008, at 6:33 PM, Steve Heistand wrote:
}
} > so for kicks I updated to the latest trunk, installed the
} > beta nvidia drivers and compiled in the vdpau options.
} > aside from a bit of an issue compiling the latest hdpvr
} > stuff all went well. But that aside since everything worked
} > just fine before without vdpau how will I know/notice
} > the supposed advantage of using vdpau?
}
} You have to choose to use the VDPAU playback settings to use them. top
} will show you about 5% cpu usage when playing back content with it.
} Since you are using svn, you're also following the -dev and -commit
} lists, so you already know this.
}

sweet, there is a nice new option under playback.
as a data point my 256M 8600gt works on some files
(7% load vs 25-30% on cpu for same file) and some files
it does have issues. The audio goes normally but the video
loops the same 1-2 sec segment.

--
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--
Steve Heistand
steve [at] heistand
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ylee at pobox

Nov 30, 2008, 8:40 PM

Post #69 of 77 (6960 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

Steve Heistand <steve [at] heistand> says:
> as a data point my 256M 8600gt works on some files (7% load vs
> 25-30% on cpu for same file) and some files it does have issues. The
> audio goes normally but the video loops the same 1-2 sec segment.

For other VDPAU experimenters, is this due to the newly-reported
>256MB video RAM requirement?

--
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Backend: Quad-core Xeon 1.6GHz, 6.6TB sw RAID 6
Video inputs: Four high-definition over FireWire/OTA
Accessories: 47" 1080p LCD, 5.1 digital, and MX-600
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myth at dermanouelian

Nov 30, 2008, 8:50 PM

Post #70 of 77 (6970 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

On Nov 30, 2008, at 8:40 PM, Yeechang Lee wrote:

> Steve Heistand <steve [at] heistand> says:
>> as a data point my 256M 8600gt works on some files (7% load vs
>> 25-30% on cpu for same file) and some files it does have issues. The
>> audio goes normally but the video loops the same 1-2 sec segment.
>
> For other VDPAU experimenters, is this due to the newly-reported
>> 256MB video RAM requirement?

I have an nVidia 256MB 8400GS and haven't seen anything like this. I
bumped up my HD-PVR to the highest quality setting and it all looks
good aside from some sync line near the top of the screen. I think my
display is set to 60hz but Ubuntu will only let me set it to 61 for
some reason. OTA HD looks blocky, h264 content looks beautiful. OSD is
all white and unusable. I'd say it's a pretty excellent start!

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steve at heistand

Nov 30, 2008, 9:04 PM

Post #71 of 77 (6961 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

Brad DerManouelian <myth [at] dermanouelian>, said on Sun Nov 30, 2008 [08:50:51 PM]:
} On Nov 30, 2008, at 8:40 PM, Yeechang Lee wrote:
}
} > Steve Heistand <steve [at] heistand> says:
} >> as a data point my 256M 8600gt works on some files (7% load vs
} >> 25-30% on cpu for same file) and some files it does have issues. The
} >> audio goes normally but the video loops the same 1-2 sec segment.
} >
} > For other VDPAU experimenters, is this due to the newly-reported
} >> 256MB video RAM requirement?
}
} I have an nVidia 256MB 8400GS and haven't seen anything like this. I
} bumped up my HD-PVR to the highest quality setting and it all looks
} good aside from some sync line near the top of the screen. I think my
} display is set to 60hz but Ubuntu will only let me set it to 61 for
} some reason. OTA HD looks blocky, h264 content looks beautiful. OSD is
} all white and unusable. I'd say it's a pretty excellent start!
}

the files it has issues on are all mkv files. probably 1080i x264 but
its hard to say for sure. recordings from the hdpvr and hdhr all
worked fine. but the osd is unuseable as well.

--
"Why is it so hot inside this handbasket?"
--
Steve Heistand
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lists at glidos

Dec 1, 2008, 5:27 AM

Post #72 of 77 (6930 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

Isaac Richards wrote:
> On Saturday 29 November 2008 10:52:58 am George Mari wrote:
>> From the notes on the patch that Isaac submitted, it looks like MPEG2
>> video is still not-quite visuallyoptimal, but that's probably just a
>> matter of time before that gets smoothed out.
>
> The corruption went away with the checkin after that, I just didn't mention it
> in the notes.

Seeing as the nVidia interlace problem is associated with XV, is there
any chance it will be fixed by use of VDPAU? I'd just love to buy
a mobo with integrated 8XXX graphics, and for now just drive my SD
TV via VGA=>Scart, knowing that I have HD capable hardware for when
I eventually need it.

In any case, it's hell these days to find a graphics card that can
generate PAL timings flawlessly, so an 8XXX card would be a great
solution, even ignoring the HD readiness.

Cheers,
Paul.

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ryan.goat at gmail

Dec 1, 2008, 5:38 AM

Post #73 of 77 (6934 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

On Sun, Nov 30, 2008 at 11:50 PM, Brad DerManouelian
<myth [at] dermanouelian> wrote:
> On Nov 30, 2008, at 8:40 PM, Yeechang Lee wrote:
>> For other VDPAU experimenters, is this due to the newly-reported
>>> 256MB video RAM requirement?
>
> I have an nVidia 256MB 8400GS and haven't seen anything like this. I
> bumped up my HD-PVR to the highest quality setting and it all looks
> good aside from some sync line near the top of the screen. I think my
> display is set to 60hz but Ubuntu will only let me set it to 61 for
> some reason. OTA HD looks blocky, h264 content looks beautiful. OSD is
> all white and unusable. I'd say it's a pretty excellent start!
>

I have an 8500GT 256MB running VDPAU on ubuntu 8.10. I can not get it
to play any high def HD-PVR recordings. It will play one 480i hd-pvr
recording I made. All the 720p and 1080i recordings I tried generated
a segmentation fault in mythfrontend (error message like: failed to
create VDPAU buffers). I thought my problem was not enough video ram.

I see the same all white OSD.

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mark.kendall at gmail

Dec 1, 2008, 6:41 AM

Post #74 of 77 (6923 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

2008/12/1 ryan patterson <ryan.goat [at] gmail>:
> I have an 8500GT 256MB running VDPAU on ubuntu 8.10. I can not get it
> to play any high def HD-PVR recordings. It will play one 480i hd-pvr
> recording I made. All the 720p and 1080i recordings I tried generated
> a segmentation fault in mythfrontend (error message like: failed to
> create VDPAU buffers). I thought my problem was not enough video ram.

Can you post some logs (using '-v playback') of files that play and
files that don't? - particularly those that crash.

Also, if you haven't done so already, try playing back some of the
failed files using the mythtv binary rather than mythfrontend - you
should have more success.

> I see the same all white OSD.

What exactly do you mean by all white? (photo?)
Regards

Mark
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lists at glidos

Dec 2, 2008, 2:24 AM

Post #75 of 77 (6846 views)
Permalink

Re: Just how great can VDPAU be? [In reply to]

Paul Gardiner wrote:
> Isaac Richards wrote:
>> On Saturday 29 November 2008 10:52:58 am George Mari wrote:
>>> From the notes on the patch that Isaac submitted, it looks like MPEG2
>>> video is still not-quite visuallyoptimal, but that's probably just a
>>> matter of time before that gets smoothed out.
>>
>> The corruption went away with the checkin after that, I just didn't
>> mention it in the notes.
>
> Seeing as the nVidia interlace problem is associated with XV, is there
> any chance it will be fixed by use of VDPAU? I'd just love to buy
> a mobo with integrated 8XXX graphics, and for now just drive my SD
> TV via VGA=>Scart, knowing that I have HD capable hardware for when
> I eventually need it.
>
> In any case, it's hell these days to find a graphics card that can
> generate PAL timings flawlessly, so an 8XXX card would be a great
> solution, even ignoring the HD readiness.

Ok, put another way: does VDPAU correctly produce interlaced output,
or does it have the same problem that nVidia's Xv has? Specifically
can it correctly produce interlaced output of 576i/480i? Or is
there some reason I'm missing that this is a silly question? I
know it's mainly for MPEG4 but I'm wondering whether it also
in some ways does a better job of MPEG2.

Cheers,
Paul.

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