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Nvidia DVD Decoder on a i9300

post #1 of 22
7/9/05 at 2:08pm
Thread Starter 
I formated my i9300 and now i need a DVD decoder i'm looking in to the nvidia one it has a list of System Requirements on the page below and it lists sound cards is that just one that it has special support for or is it the only ones it supports ??

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

P.S I would like to know from the ppl who use the nvidia decoder but if u have any info pop it in just note u don't have the nvidia decoder please thankz

The i9300 is the best laptop ever
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post #2 of 22
7/9/05 at 2:29pm
I'm running it on my XPS, it works well.
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post #3 of 22
7/9/05 at 6:18pm
You do not need to install this, I think. It is probably included in the Nvidia display driver. At least in my case I saw no difference before and after ( and there was no sign of a stressed CPU before I installed the "Nvidia DVD Decoder", and playback was always smooth).
In any case it would be strange if the machine was delivered without all the neccessary drivers. Or?
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post #4 of 22
7/9/05 at 6:29pm
I've run it--it's supposed to fully implement Nvidia's PureVideo stuff. As I understand it, PureVideo's one real claim to fame is high-quality hardware acceleration of deinterlacing.

Also of note, I read somewhere that only the 7800's have the horsepower to do this at HDTV resolutions--dunno if it's true though.

Anyways, the difference you should see is if the source video is interlaced NTSC (perhaps PAL and SECAM as well?) and you're outputing to a progressive display--like your LCD screen. It's supposed to look better, with no increase in CPU usage.

I haven't really paid close attention to it--I got the decoder when I was trying some experiments with HDTV sources; totally different thing.
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post #5 of 22
7/10/05 at 11:46am
No the 6600GT up through 7800 all have the ability to make use of Purevideo (that is to say no the 7800 is not the only one to have the horsepower, it may just have moreso as it is next gen). You can run the same HD clips on all those cards (I have a 6600GT in a workstation) and they run full screen, at 24 and 30FPS no problems.

-D
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post #6 of 22
7/10/05 at 12:57pm
He's not saying it won't run, he's saying only the 7800 has HDTV-res hardware deinterlacing.

I run the NVIDIA DVD Decoder. It does NOT come with your video drivers, it is an MPEG-2 codec for DirectShow. I prefer it to the other decoders, as it looks rather nice even on ATI hardware.
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post #7 of 22
7/10/05 at 2:18pm
From the TheaterTek Forums, my understanding is that at least desktop 6800s had a firmware problem that makes the hardware acceleration useless. Hopefully the 6800 Go has resolved this. I use the Nvidia decoder on my home theater MCE machine, it is great.
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post #8 of 22
7/10/05 at 5:23pm
I don't really care about the hardware acceleration... I just like the image quality.

any way to tell whether or not I have hardware deinterlacing enabled?
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post #9 of 22
7/11/05 at 1:24am
So can it be 'hacked' such that the 9300 6800 can take advantage of the hardware already present on this expensive video card
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post #10 of 22
7/11/05 at 2:38pm
Quote:
Originally Posted by Hazridi
He's not saying it won't run, he's saying only the 7800 has HDTV-res hardware deinterlacing.

I run the NVIDIA DVD Decoder. It does NOT come with your video drivers, it is an MPEG-2 codec for DirectShow. I prefer it to the other decoders, as it looks rather nice even on ATI hardware.
I was wrong, and the reason why I did not see any difference in processor usage etc, was probably that the decoder trial version did not install at all. I have tried it once again on a new XP install, and clearly something is wrong. I checked with the Microsoft decoder detection tool, and the only decoder it shows is the one which came with PowerDVD. BTW, CPU usage without PowerDVD installed is about 20% average (difficult to tell excactly) and with it about 10% (using WMP in both cases). The image quality is very good, and playback perfectly smooth in both cases.
After this I tried to install the new, 60daytrial version of the Nvidia decoder, but could not install because a key was asked for. The Nvidia online purchase section was also down. Anyhow, this was mostly curiosity on my side. Normal DVD's look very nice as it is, and it is hard to imagine how this decoder could improve anything at all. (well who knows) For HD stuff this might be different of course.
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post #11 of 22
7/11/05 at 2:49pm
will the nvidia purevideo codec work in any dvd player? (windvd?)
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post #12 of 22
7/11/05 at 3:40pm
Have you tried the trial key posted on the download webpage?

http://www.nzone.com/object/nzone_do...1.02-150-trial
(linked from nvidia webiste: http://www.nvidia.com/page/purevideo.html)

I haven't tried it myself as I am still deciding which decoder to use. I don't want to cluster my system with multiple codecs.
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post #13 of 22
7/11/05 at 8:10pm
Thank you for the info amuront! (I was all over the place, but never saw that page).
Now I will try to install it, and eventually report back, if it works.


edit: It works well. Just for playing ordinary DVD's on the notebook I think it has no advantage before, say, PowerDVD. (I could not detect any difference in picture quality by default settings, and CPU usage was if anything slightly higher). OTOH there are clearly more settings to play with for the more advanced usage, and this in itself makes it look quite attractive...
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post #14 of 22
7/12/05 at 12:57am
I bought the Nvidia DVD decoder because it ran so nice on my desktops 6600GT that just made sense. As far as my i9300 it made a bit of difference the the quality of the interlacing and overlay. The CPU usage went down which stands to reason as it off loads some processing directly onto the GPU. I am not totally sure of all the features of the 7800 compared to the geforce 6X series with the exception of the numbers, but all 6X series 6600GT and above do support HD playback at most of the resolutions. 1080, 720 Etc. I am not sure what the other poster really means about the 7800.

-D
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post #15 of 22
7/12/05 at 5:00pm
Quote:
Originally Posted by eclypse3demons
I bought the Nvidia DVD decoder because it ran so nice on my desktops 6600GT that just made sense. As far as my i9300 it made a bit of difference the the quality of the interlacing and overlay. The CPU usage went down which stands to reason as it off loads some processing directly onto the GPU. I am not totally sure of all the features of the 7800 compared to the geforce 6X series with the exception of the numbers, but all 6X series 6600GT and above do support HD playback at most of the resolutions. 1080, 720 Etc. I am not sure what the other poster really means about the 7800.

-D
I guess you mean me? I'll assume so...

Well...of the 17 HDTV resolutions (more or less), the top two (in popularity) are 1080i and 720p.

720p = 1280 x 720 progressive scan

1080i = 1920 x 1080 interlaced scan (technically, 1920 x 1440 I believe, extra pixels for vertical retrace)
EDIT: Nope, "technically, it can be 1440 x 1080 -- encoded at this rate due to source and transmission limits". Sorry for the misinfo.


If you're going to play a 720p-encoded source on a progressive display, the display (in this case a PC) simply has to scale the video source to the display's native resolution (assuming you want to go full screen). This isn't too hard a job and can be pretty easily handled by any modern processor.

If you're going to play a 1080i-encoded source on a progressive display, you have to de-interlace the video. This can and has been done in software on PCs, though usually with less-than-optimal results, due to how expensive in processor cycles it is to use the fancier de-interlacing algorithms. I've read that the 7800 can do advanced de-interlacing via it's hardware at these HDTV resolutions, versus the 6 series Nvidia chips, which can do this only for standard definition, or approximately 720x480 res.
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post #16 of 22
7/12/05 at 5:10pm
Good read on purevideo here:

http://www.anandtech.com/video/showdoc.aspx?i=2305

It's partially broken on the 6800gt and ultra, but not the 6800nu.

John
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post #17 of 22
7/12/05 at 6:51pm
Quote:
Originally Posted by Johnmcl7
Good read on purevideo here:

http://www.anandtech.com/video/showdoc.aspx?i=2305

It's partially broken on the 6800gt and ultra, but not the 6800nu.

John
Nice! Quite a good read.

Thanks, John.

EDIT: John, silly question--the "6800nu" is the go6800 in the 9300, correct?
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post #18 of 22
7/13/05 at 1:31am
Aye I did not know it could go that high, it is a moot point anyway if you are running a native 1440X900 as anything other than more than that will have to be scaled and no matter what may look over smoothed if it could run at all, you are limited to 720.

-D
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post #19 of 22
7/13/05 at 3:42am
They didn't really specify whether or not it was functioning in the NV42. It's enabled for the NV41 though.
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post #20 of 22
7/13/05 at 3:51am
Quote:
Originally Posted by Hazridi
They didn't really specify whether or not it was functioning in the NV42. It's enabled for the NV41 though.
Crap.

I just found out that I've got the nv42...
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