The VideoLAN Forums

Hello,

I have been experiencing this problem while running VLC 1 on Windows 7 64 bit.

Problem is, simply when I run any xvid file, with subtitles, or without the video is pixelated, and I am not alone:

http://www.sevenforums.com/music-pictur ... lated.html

Also, when I try to play a 1080p mkv video, the player is very slow. my PC is having a Quad core AMD Phenom 9850 BE, 8GB Ram @ 1066 and nVidia GeForce 9800GX2 with latest drivers for all. All videos play fine on Media Player 11.

Only work around I found was to switch Video output from "Default" to Direct X. As soon this is done, all plays fine but Windows Aero is turned off. When O choose Open GL, It plays fine but I do not get the seek bar on full screen anymore. I would really like to see a solution since I am not willing to turn off Aero each time I am watching a movie.


Any help will be useful...

Problem is, simply when I run any xvid file, with subtitles, or without the video is pixelated, and I am not alone

Direct3D video output module is broken under Windows 7. This is known issue.

Also, when I try to play a 1080p mkv video, the player is very slow. my PC is having a Quad core AMD Phenom 9850 BE, 8GB Ram @ 1066 and nVidia GeForce 9800GX2 with latest drivers for all. All videos play fine on Media Player 11.

VLC cannot do multithreaded H.264 decoding and VLC doesn't support hardware decoding. So that is why the decoding is much slower than WMPs. Loop filter trick might help a bit.
http://wiki.videolan.org/WindowsFAQ-1.0 ... s_too_slow

Problem is, simply when I run any xvid file, with subtitles, or without the video is pixelated, and I am not alone

Direct3D video output module is broken under Windows 7. This is known issue.

Also, when I try to play a 1080p mkv video, the player is very slow. my PC is having a Quad core AMD Phenom 9850 BE, 8GB Ram @ 1066 and nVidia GeForce 9800GX2 with latest drivers for all. All videos play fine on Media Player 11.

VLC cannot do multithreaded H.264 decoding and VLC doesn't support hardware decoding. So that is why the decoding is much slower than WMPs. Loop filter trick might help a bit.
http://wiki.videolan.org/WindowsFAQ-1.0 ... s_too_slow

Any idea when this is supposed to be resolved?
Do you mean that WMP and Media player classic Home cinema work fine because they support nVidia PureVideo HD but vlc dont so thats why it is slow?

Any idea when this is supposed to be resolved?

Multicore H.264 decoding will prolly come to VLC once ffmpeg-mt is made stable.

Do you mean that WMP and Media player classic Home cinema work fine because they support nVidia PureVideo HD but vlc dont so thats why it is slow

Yep.

why cant this be fixed why dose this have to waite for ffmpeg-mt to get stable to fix this problem

You can naturally compile your own versions with ffmpeg-mt.

Ok, now I hear this issue has been fixed and the newest VLC supports PureVideo. Is this true? and if it is true, how can I make sure VLC decodes using PureVideo?

VLC doesn't support whole Purevideo set. VLC only supports playback via DXVA2 API (so e.g. GeForce 8800 Ultra doesn't work but GeForce 205 should work).

I got a 240 GT, will it work? and if so, are there any settings I should do to the player preferences/settings to enforce it?

240 GT works. The option is under Tools -> Preferences and Input & Codecs and tick Use GPU acceleration. Remember to press Save to save VLC settings and restart VLC after that to make sure changes are enabled.