DVD playback

Mr.E Solved! · Joined: 22 Aug 2007 Posts: 497

Chip Thomas wrote:
>
> nVidia marketing states that DVD playback capability is built into their
> 7 series and above cards and off-loads that processing from the CPU. Is
> there a certain DVD playback package that utilizes this function? I'm
> using Power DVD 6 in WinXP SP2. i've got a "boxfull" of 7 series from
> 7600GS through 7950GT cards that I could use in our HTPC.
>
> So what do I do to get DVD playback onto the GPU and off of the CPU? Or
> am I already using this feature without knowing it?
>
> TIA,
>
> Chip

What do you hope to gain? As long as the picture on the screen is
acceptable to you and you get to watch what you want, does it matter if
the GPU or CPU is handling the number crunching?

If you have a genuine concern or need on that matter (Oh, I dunno
thermal management?) you could always try ATI cards which tend to have
more dedicated GPU circuits for such tasks. You could also try nVidia's
decoder, if you are concerned about interoperability:

http://www.nvidia.com/object/dvd_decoder.html

Archived from group: alt>comp>periphs>videocards>nvidia

Chip Thomas · Joined: 25 Feb 2008 Posts: 3

nVidia marketing states that DVD playback capability is built into their
7 series and above cards and off-loads that processing from the CPU. Is
there a certain DVD playback package that utilizes this function? I'm
using Power DVD 6 in WinXP SP2. i've got a "boxfull" of 7 series from
7600GS through 7950GT cards that I could use in our HTPC.

So what do I do to get DVD playback onto the GPU and off of the CPU? Or
am I already using this feature without knowing it?

TIA,

Chip

Chip Thomas · Joined: 25 Feb 2008 Posts: 3

Mr.E Solved! wrote:
> Chip Thomas wrote:
>>
>> nVidia marketing states that DVD playback capability is built into
>> their 7 series and above cards and off-loads that processing from the
>> CPU. Is there a certain DVD playback package that utilizes this
>> function? I'm using Power DVD 6 in WinXP SP2. i've got a "boxfull"
>> of 7 series from 7600GS through 7950GT cards that I could use in our
>> HTPC.
>>
>> So what do I do to get DVD playback onto the GPU and off of the CPU?
>> Or am I already using this feature without knowing it?
>>
>> TIA,
>>
>> Chip
>
> What do you hope to gain? As long as the picture on the screen is
> acceptable to you and you get to watch what you want, does it matter if
> the GPU or CPU is handling the number crunching?

I do experience a little "jerkiness" from time to time. I know its the
HTPC since the same scene on DVD doesn't produce the same effect.

>
> If you have a genuine concern or need on that matter (Oh, I dunno
> thermal management?) you could always try ATI cards which tend to have
> more dedicated GPU circuits for such tasks. You could also try nVidia's
> decoder, if you are concerned about interoperability:
>
> http://www.nvidia.com/object/dvd_decoder.html

I'll try it. Thanks.

Chip

Mr.E Solved! · Joined: 22 Aug 2007 Posts: 497

Chip Thomas wrote:
> Mr.E Solved! wrote:
>> Chip Thomas wrote:
>>>
>>> nVidia marketing states that DVD playback capability is built into
>>> their 7 series and above cards and off-loads that processing from the
>>> CPU. Is there a certain DVD playback package that utilizes this
>>> function? I'm using Power DVD 6 in WinXP SP2. i've got a "boxfull"
>>> of 7 series from 7600GS through 7950GT cards that I could use in our
>>> HTPC.
>>>
>>> So what do I do to get DVD playback onto the GPU and off of the CPU?
>>> Or am I already using this feature without knowing it?
>>>
>>> TIA,
>>>
>>> Chip
>>
>> What do you hope to gain? As long as the picture on the screen is
>> acceptable to you and you get to watch what you want, does it matter
>> if the GPU or CPU is handling the number crunching?
>
> I do experience a little "jerkiness" from time to time. I know its the
> HTPC since the same scene on DVD doesn't produce the same effect.
>
>>
>> If you have a genuine concern or need on that matter (Oh, I dunno
>> thermal management?) you could always try ATI cards which tend to have
>> more dedicated GPU circuits for such tasks. You could also try
>> nVidia's decoder, if you are concerned about interoperability:
>>
>> http://www.nvidia.com/object/dvd_decoder.html
>
> I'll try it. Thanks.
>
> Chip

Jerkiness can be caused by any number of reasons, you seem capable
enough to filter out the obvious reasons, let us know if purevideo works
for you.

deadguy3 · Joined: 03 Jan 2008 Posts: 6

On Sun, 24 Feb 2008 18:36:05 GMT, Chip Thomas
wrote:

> nVidia marketing states that DVD playback capability is built into their
> 7 series and above cards and off-loads that processing from the CPU. Is
> there a certain DVD playback package that utilizes this function? I'm
> using Power DVD 6 in WinXP SP2. i've got a "boxfull" of 7 series from
> 7600GS through 7950GT cards that I could use in our HTPC.
>
> So what do I do to get DVD playback onto the GPU and off of the CPU? Or
> am I already using this feature without knowing it?
>
> TIA,
>
> Chip

enable hw decde in codec options.
also called dxva.

Rene · Joined: 22 Aug 2007 Posts: 43

"Chip Thomas" schreef in bericht $Mh2.3140@nlpi069.nbdc.sbc.com...
> Mr.E Solved! wrote:
>> Chip Thomas wrote:
>>>
>>> nVidia marketing states that DVD playback capability is built into their
>>> 7 series and above cards and off-loads that processing from the CPU. Is
>>> there a certain DVD playback package that utilizes this function? I'm
>>> using Power DVD 6 in WinXP SP2. i've got a "boxfull" of 7 series from
>>> 7600GS through 7950GT cards that I could use in our HTPC.
>>>
>>> So what do I do to get DVD playback onto the GPU and off of the CPU? Or
>>> am I already using this feature without knowing it?
>>
>> What do you hope to gain? As long as the picture on the screen is
>> acceptable to you and you get to watch what you want, does it matter if
>> the GPU or CPU is handling the number crunching?
>
> I do experience a little "jerkiness" from time to time.

That is not unusual in pornographic movies.

Yours sincerely,
Rene

Chip Thomas · Joined: 25 Feb 2008 Posts: 3

Rene wrote:
> "Chip Thomas" schreef in bericht
> $Mh2.3140@nlpi069.nbdc.sbc.com...
>> Mr.E Solved! wrote:
>>> Chip Thomas wrote:
>>>> nVidia marketing states that DVD playback capability is built into their
>>>> 7 series and above cards and off-loads that processing from the CPU. Is
>>>> there a certain DVD playback package that utilizes this function? I'm
>>>> using Power DVD 6 in WinXP SP2. i've got a "boxfull" of 7 series from
>>>> 7600GS through 7950GT cards that I could use in our HTPC.
>>>>
>>>> So what do I do to get DVD playback onto the GPU and off of the CPU? Or
>>>> am I already using this feature without knowing it?
>>> What do you hope to gain? As long as the picture on the screen is
>>> acceptable to you and you get to watch what you want, does it matter if
>>> the GPU or CPU is handling the number crunching?
>> I do experience a little "jerkiness" from time to time.
>
> That is not unusual in pornographic movies.
>
> Yours sincerely,
> Rene
>
>

I'll have to take your word for that. I'm glad I came to this group to
ask the advice of experts.

Chip

Rene · Joined: 22 Aug 2007 Posts: 43

"Chip Thomas" schreef in bericht $Ej5.10598@newssvr29.news.prodigy.net...
> Rene wrote:
>> "Chip Thomas" schreef in bericht
>> $Mh2.3140@nlpi069.nbdc.sbc.com...
>>> Mr.E Solved! wrote:
>>>> Chip Thomas wrote:
>>>>> nVidia marketing states that DVD playback capability is built into
>>>>> their 7 series and above cards and off-loads that processing from the
>>>>> CPU. Is there a certain DVD playback package that utilizes this
>>>>> function? I'm using Power DVD 6 in WinXP SP2. i've got a "boxfull"
>>>>> of 7 series from 7600GS through 7950GT cards that I could use in our
>>>>> HTPC.
>>>>>
>>>>> So what do I do to get DVD playback onto the GPU and off of the CPU?
>>>>> Or am I already using this feature without knowing it?
>>>> What do you hope to gain? As long as the picture on the screen is
>>>> acceptable to you and you get to watch what you want, does it matter if
>>>> the GPU or CPU is handling the number crunching?
>>> I do experience a little "jerkiness" from time to time.
>>
>> That is not unusual in pornographic movies.
>>
>> Yours sincerely,
>> Rene
>
> I'll have to take your word for that. I'm glad I came to this group to
> ask the advice of experts.

You can trust me, I have read a book about that kind of movies and am pretty
sure it must be true.

I just had another idea, You wrote that You are using Power DVD. For a
normal "standard definition" dvd You do not need sophisticated hardware or a
GPU that is cooperating in decoding, a couple of months ago I installed a
dvd-player and Power DVD that she got with it on an Ahtlon 700 with
TNT2-card (though I must admit it was the ultra version of that card Wink

).
She got jerkiness as well. I have been searching in the menu's from Power
DVD and turned the color profile form "vivid" into "original". That solved
all jerkiness. I am not saying this because I think You should not care
about the hardware decoding, on the contrary, but just to show that the
jerkiness itself is not necessarily the consequence of using the CPU for the
decoding instead of the dedicated hardware (however, another friend owns a
Celeron 366 and got a DVD player as a gift, in that computer the processor
is not strong enough to perform non-jerky decoding, but I guess Your
processor is much faster than both ones I mentioned above).

Apart from that the person that told You to enable hardware acceleration in
is absolutely right, in Power DVD (at least my version) You can find that on
the same page as that color profile setting. On
http://www.nvidia.com/docs/CP/11036/PureVideo_Product_Comparison.pdf You can
see which GPU's have the hardware decoder inside.

Good luck!
Yours sincerely,
Rene