The VideoLAN Forums

Hello there.

I tried to dig up some old posts about this, and it seems that I am not alone having a few issues with HD playback. However, I felt I was unable to get a sufficient answer for the exact root cause of this problem.

To be more precise : I recently downloaded a .h264 movie sample of some formula 1 race. Its 1080p and around 18-19mb/sec bit rate so naturally the quality is awesome, and therefore also quite demanding on my system.

What happens is that it starts off ok, with both sound and video working fine, but then after a few seconds the video sort of stops, while the sound goes on. Sometimes this resolves itself after a few seconds, but then again, i lost quite a few frames while waiting. Usually tho, it just seems to have come to a complete halt, and renders the file useless to watch.

BUT, if i now say...dug up good ol` windows media player classic, followed by installing coreAVC, I can play the file perfect !

So does this mean that it is in fact VLCs "internal codec" or whatever, that is simply less capable of playing the file?


P.S this is also a problem when I try to play a 720p movie i just downloaded. Its less bit rate and smaller resolution, but i still experience this "stuttering" I have in the 1080p one. Also I assume its worth mentioning that both these files are .mkv , and that i have a 3ghz p4 cpu with 1gb of ram and an nvidia geforce 6800.

Regards,
Chs

I see the same.... VLC needs a powerful machine to play h.264 properly I see the exact same thing on my Celeron machine while my dual Pentium machine plays it fine.

And yes CoreAVC is VERY efficient and play H.264 movies fine on the Celeron machine.

Well, I guess I can conclude with that for HD files I still need to use media player classic then :/ . Atleast until I get a new comp.

I'm just curious, but where you got these formula 1 HD races .. ??

I'm a big fan and went from 97 to 2006 to Montreal's Grand prix in Canada. Even my father was there closer to the action he already had to get out Rubens ferrari's and Montoya's Williams BMW who crashed at his corner, he was a "race marshall" . It is the best place you can get close to the action. It was funny because I saw him pushing the ferrari on the giant screen with another guy pushing it also while holding the neutral button (they had to know) and I shouted hey it's my father , talking to my friend beside me. It was weird to see him there beeing broadcast around the world, I told him after the race because he didn't know. They took a lot of pictures after the race of the damaged cars.

Im sorry but it was just a sample A very small clip, about 3-4mins and 300mb in the very best HD quality. It was just to show how good HD really is.

Hello out there,

i have a similar problem with playing any HD content with the vlc v0.8.6 - player!

the vid:

Video: MPEG2 Video 1920x1088 (16:9) 25.00fps 15526Kbps [Video]
Audio: MPEG Audio 48000Hz stereo 256Kbps [Audio]

my pc has a amd athlon xp 3000+, 1gb ram and a GF6600GT!

when i try to play the video with VLC its opens the player but the video isn't shown - only the timeline begins to run, after some seconds the video opens but there are a lot of artefacts mostly green and no sound - sometimes the video opens properly after the artefacts but with no sound and it stutters often (ok my cpu is not the fastest - i know)

but the Media Player Classic can play the video properly incl. the sound (with light stuttering in the pic)

can somebody tell me how i can get the vlc working with this video!?

thx a lot! (sry 4 my bad engl. =) -> GER )

greetz schiemax