Hd Videos Jerky In Ubuntu?

[dave_boo]

I have Ubuntu 9.10 (x86_64) installed on a partition and noticed that playback was jerky on some 1080p-30 material--definitely something that should be happening on an Core2 Duo T9300. Worked fine with VDPAU, but using stock vlc/xine/mplayer it was a no go. Apparently there has been an update in the last day or so to Karmic's ffmpeg package that smoothed it right out. The notes for the update listed something about fixing a regression, so if anyone else has jerky hi-def playback, they might want to go ahead and update and give their media another go.

The package is ffmpeg 4:0.5svn20090706-2ubuntu2 (karmic) and ffmpeg 4:0.5svn20090706-2ubuntu2.2 (karmic-updates).

[Richard-BKK]

Hi Dave,

What is the VGA chipset, I have a Acer Aspire 2930Z (intel T4300, 2Ghz, 1mb cache) and I can easily play HD 1030p material.

[dave_boo]

Hi Dave,

What is the VGA chipset, I have a Acer Aspire 2930Z (intel T4300, 2Ghz, 1mb cache) and I can easily play HD 1030p material.

Sorry about that. It's the Nvidia 8600M GT (that's why I was able to test VDPAU) with driver revision 195.30. Following is the command to download an example of material that caused stuttering and then the VDPAU friendly mplayer command. Note that it's a h.264 wrapped in a quicktime container and the second command will do nothing without a recent-ish Nvidia chipset.

wget http://mcfrisk.kapsi.fi/linux/video/gopro_hd_hero/GOPR0009_1920x1080p30.MP4
 && vlc GOPR0009_1920x1080p30.MP4

mplayer -vc ffh264vdpau -vo vdpau GOPR0009_1920x1080p30.MP4

[Richard-BKK]

The video plays fine in mPlayer, but it's not smooth in VLC

mPlayer version 2:1.0~rc3+svn20090426-1ubuntu10.1

VLC version 1.0.3-1~ppa1