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upgraded pc but still cant run full HD video

 
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olddognewtricks



Joined: 25 Aug 2010
Posts: 2

PostPosted: Wed Aug 25, 2010 7:42 pm    Post subject: upgraded pc but still cant run full HD video Reply with quote

Hi, have recently bought camera (Canon Powershot SX1) which records full hd video, but PC wasn't high enough spec.
Have now upgraded video card (GeForce 210 1GB) and processor to AMD phenom quad core 9550, which I believe should be more than enough.
Am running XP sp3, 2GB mem, ASRock K10n78 motherboard.
But the video is still jittery.
Can anyone advise what I need to do? thanks for any suggestions, cheers.
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JonS



Joined: 31 May 2010
Posts: 813
Location: Morecambe

PostPosted: Wed Aug 25, 2010 8:13 pm    Post subject: Reply with quote

so many imponderables...

is it jittery playing back from the camera via the PC, or after the files have been downloaded to the PC?
what format are the videos coming off the camera in? Are you re-encoding or editing them before playback? if so, what software are you using?
how big / how fast is the hard drive? How much space is left on it and how big is the swap file?
How big are the files you are trying to play back?
what have you got installed on the machine in the way of codecs ? or other video playback software?
is the camera connected via USB or firewire?
Is the2GB of memory DDR2 or DDR3?


sorry to ask so much, but there are so many possibilities
Notwithstanding the fact that Nvidia cards don't seem to be regarded with much favour by professional video editors: they seem to prefer ATi cards.
Also DDR3 seems to have too high a latency to be effective - DDR2 seems to be preferred


Last edited by JonS on Fri Aug 27, 2010 7:05 am; edited 2 times in total
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olddognewtricks



Joined: 25 Aug 2010
Posts: 2

PostPosted: Thu Aug 26, 2010 8:49 pm    Post subject: Reply with quote

Wow, thanks for all your thoughts.
right here goes, it is jumpy/jittery on the pc after download (it is fine on the camera), the format is .MOV, as far as encoding etc. it is nothing so clever just playback via realplayer, the HD is 160G with 120G free, the swap (page?) file was set at 2 - 4G, the files are full HD and up to 400M (even a short one of 8 secs is about 40M), no other particular video playback capability other than standard stuff (Quicktime, Realplayer), the camera connects via USB and the Mem is DDR2 (533) I think.

As a result of your post I have now set the page file to "let system set" and the video's now run OK, not jumpy/jittery at all.
So that seems to have sorted it, thanks very much.
Excellent, cheers Very Happy
(I assume letting the system manage the page file shouldn't be a problem?)
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JonS



Joined: 31 May 2010
Posts: 813
Location: Morecambe

PostPosted: Fri Aug 27, 2010 7:03 am    Post subject: Reply with quote

thanks for the feedback, good to hear it works

letting the system manage the swap file size won't be a problem: I always set my machines to work that way
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