HD Videos just wont run smooth :(

[Lahomer]

Hi, i have a question for some reasons when i run hd movies with the file name .mkv on my mediacenter they just wont run smooth but on my system they do ... the specs of my mediacenter :

Pentium D 2.8 GHZ 4mb cache
2 GB Drr667
Nvidia 8600GT

Is the cpu a bottleneck ? would be unreasable cause its a dualcore

The movies are 1080 HD and the pc is connected thru a component cable on my 32 inch samsung lcd tv.

thanx anyhow

[Lahomer]

i can put a pentium 4 3.4 HT Processor in it will that help ?

[N0sferatU]

you shouldn't be having a problem I can play 720/1080 TS streams on my old laptop which is a simple pentium M 1.8 with a radeon 9600....are they TS streams or H.264 files?

[greengiant]

do you have any HD videos in a different format, if the problem is only with the .mkv videos it's either a splitter or codec issue

they are most likely encoded with h.264/x264 which is pretty demanding

the best codec I have used is coreAVC, with coreAVC I can play HD video on a sempron 2800

cyberlink's newest codec works ok if you have a fast enough computer, which yours should be

also you may want to make sure that the best codec has highest priority you can check that with RadLight Filter Manager and I would also recommend you download mkvtoolnix

[Dierdre]

I have some videos that will run choppy on WMP even somthing thats not HD material. I fix this issue by using MPC instead.

Its just a much much better player. Also for HD stuff, sombody recomended Nero Showtime, it works great aswell except im haivng a no sound issue on a certian file type.

[Lahomer]

tryed it all no succes :/ how is this possible lol

[Zeppo]

Can you try a similar file at 720i instead of 1080? If the 720 works okay you know it's your CPU holding you back, if not then the files are dodgy. Obvious, but worth a try.

[Lahomer]

Originally Posted by Zeppo

Can you try a similar file at 720i instead of 1080? If the 720 works okay you know it's your CPU holding you back, if not then the files are dodgy. Obvious, but worth a try.

Could that processor realy be to weak ?

[Hilbert Hagedoorn]

Likely the codec, try coreAVC.

[Lahomer]

Originally Posted by Hilbert Hagedoorn

Likely the codec, try coreAVC.

wel tryed that to so ...

[Zeppo]

Originally Posted by Lahomer

Could that processor realy be to weak ?

Sorry, I'm not up to speed on Intel CPUs.

[Anarion]

I use FFDShow because for some odd reasons hardware acceleration produces really bad, laggy picture with PowerDVD 7.0 Deluxe codecs.

[greengiant]

Originally Posted by Lahomer

wel tryed that to so ...

with a dual core cpu and core avc no h264 should be unplayable

it's probably what I listed before, even though the codec is installed their is another that has a higher priority, meaning the player is using the slower codec

download RadLight Filter Manager fins coreavc in the direct show list set it to the highest level and then reboot.

a problem that I had had once was that coreavc and ffdshow was both decoding the video for some reason

what you could do is download graphedit, once you run it goto file/render media file and it will show you what codec it is using

the tree should only show the video file---->coreavc---->video renderer if there is any thing else uninstall the codec or lower the priority

[SniperDaws]

are you streaming it from one pc to the other or direct playback?

i get stuttering when playing 1080p over my network.

If its not that then i think its the drivers for the 8600GT and not supporting Hardware decoding. you could wait till there are some more optimised drivers for your card.

[Anarion]

One more question. What codec you used to encode those files to .mkv? Did you use H.264 based codec or just MPEG4 compatible codec?

[Lahomer]

Originally Posted by SniperDaws

are you streaming it from one pc to the other or direct playback?

i get stuttering when playing 1080p over my network.

If its not that then i think its the drivers for the 8600GT and not supporting Hardware decoding. you could wait till there are some more optimised drivers for your card.

tryed it with a 7300 same results

[SniperDaws]

ok what player are you using?

download Purevideo from Nvidia's website (get the trial unless you know how to get the full version )


goto www.apple.com/trailers and play a 480p, 720p and 1080p using the latest quicktime 7. my pc plays all of those smooth without any stuttering.

[Lahomer]

Originally Posted by SniperDaws

ok what player are you using?

download Purevideo from Nvidia's website (get the trial unless you know how to get the full version )


goto www.apple.com/trailers and play a 480p, 720p and 1080p using the latest quicktime 7. my pc plays all of those smooth without any stuttering.

thnx for the advise downing NVIDIA PureVideo HD v1.2 is that any good ?

[SniperDaws]

Have you tried the Quicktime HD trailers?

[Lahomer]

gona try now was buzy with work ! part of life

[Lahomer]

tryed it ... 1080 doesnt run smooth 720 a little bit better and 480 runs fine

[homerpez]

I don't know if it's any help at this point, but, I've noticed from my setup, that even with acceleration, h.264 and VC1 stuff (HD-DVD's) do seem really reliant on a VERY powerful processor to run absolutely smooth...

I've got an AMD 4200 x2 and 2 GB RAM right now, I'm actually upgrading to an Intel E6600 Core 2 Duo system at the end of the week, and mostly due to the HD encoding and decoding demands (though it'll help with games too).

I've seen people try to make "video player only" systems that use processors slower than the E6300 or so (4200 is about equivalent of that), but amazingly even that processor seems to not totally keep up - there's some playback issues, and you can see in Task Mangler how badlye the CPU is pummelled by these HD codecs.

It's partly due to PowerDVD 7.0 not being up to snuff, but I never made it through an entire HD-DVD on my 4200 x2 without the system locking up, due to processor strain. They would play at 1080p, and smooth for a while, but eventually would lock up.

It sucks to say, but the Pentium 4 and Pentium D both seem too slow for this task... Nvidia Purevideo seems to not always do what it says it does. Great for standard DVD's, but for me it seems to cause more issues than it solves by accellerating.

Unfortunately looks like CPU power makes more difference than anything else when it comes to this (at least I hope so, since I have expensive computer components on the way)

[Lahomer]

well solved it the easy way ! just bougd a c2d 4300 and problem solved case closed