The VideoLAN Forums

I am looking for a new camera and downloaded several clips to preview the material. Camera is a Kodak ZX1,it records 720p at 60fps and stores as a mov file.VLC identifies codec as avc1, 1280x720 at 59,96fps with mp4a audio in stereo. The file plays quite jumpy, but parts are smooth.

I ran it in both 1.05 and latest nightly but on my pc they stutter. I also have an Asrock 330 running XBMC, and there the file plays fine. How do I troubleshoot this? Can someone confirm this file playing fine in VLC as I can't discard my pc just yet?

My pc: core2duo at 2.4GHz, 4GB memory, 8800GTS 256MB videocard all running windows 7. CPU usage around 55-57% while playing this clip
testfile: http://jaspov.hourglazz.com/testvlc.mov
Read on internet that file format should be Video: H.264 (MOV)

Use those DXVA builds from this forum. They have GPU acceleration support.

Thanks I just tried. Jumpyness still there, though in different places it seems, and cpu usage even goes up.

Did you enable GPU decoding?

Yes I did. Can someone confirm this file plays smooth (on faster pc?). Weird thing is that my cpu doesnt max out in vlc 1.05 or beta.

VLC doesn't support multicore decoding. So VLC won't max out multicore CPUs.

You have G80 core 8800GTS?

I have a G80 revision a3 (ran GPU-z). It comes with 320mb, I was incorrect about that. Thanks for multicore remark. Just ran the file again but it appears none of my cores is fully maxed out. I have a screenshot here:



The movie still chops here in certain parts. Could that also happen without cpu maxing out? Movie is at 60fps, maybe that is just too fast for my setup anyway?

You GPU doesn't support the DXVA decoding. So only VLC related option that might help is loop filter trick
http://wiki.videolan.org/WindowsFAQ-1.0 ... s_too_slow

Thanks, I tried it but it doesn't appear to help much. Does this mean the file is fine, but my pc is simply too slow?

Does this mean the file is fine, but my pc is simply too slow?

Yes, I'm afraid.

What would be the best upgrade? I run a 2.4GHz core 2 duo, 3.something GHz is fastest now I think, or I could get a better videocard which supports hardware decoding, but I guess only VLC beta supports that currently? Would I then be better off with a more recent nvidia or ati card?

NVIDIA. And I would just use Media Player Classic for those files that VLC won't play correctly.

poor encoding format in combination with slow hardware, you can either rencode all these files to the standard 29.97fps in another codec (i reccommend xvid or x264) or get a faster cpu. I have a quadcore 4.0 and i was still hitting 30% running this file, however it was smooth.

quadcore 4.0

Yeah... right....

quadcore 4.0

Yeah... right....

Yeah it is right
its an AMD 965 Black Edition (normal 3.4) overclocked to 4.0, look it up its not that unheard of. People have gotten that cpu to 6 with liquid nitrogen. it is the fastest clocked cpu on the market so far.