I have a laptop with a discrete Nvidia graphics card .
How can I know if my video player be it mplayer or vlc or totem is using nvidia VDPAU or not?
For example, running mplayer2 with the script below, I get this message:
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
But I do have such file in the system:
-rw-r--r-- 1 root root 1800952 2011-11-23 07:39 /usr/lib/nvidia-current/vdpau/libvdpau_nvidia.so.290.10
Script to find out codec for a file:
#!/bin/bash #Script to automatically find out which codec a file is using and determine whether or not to use VDPAU. #if no input display usage if [ -z "$1" ]; then echo usage: $0 /path/to/file exit fi #remember to change this to the path of your mplayer binary mplayerlocation=/usr/bin/ cd $mplayerlocation #kinda a lame way to do it, but bring up mplayer and pipe the output to a temporary file, then read which codec the file is ./mplayer -identify -vo vdpau $1 > /tmp/VIDEOCODEC & sleep 0.5 killall mplayer videocodec=`cat /tmp/VIDEOCODEC | grep ID_VIDEO_CODEC | cut -c 16-25` rm /tmp/VIDEOCODEC echo "VIDEO CODEC: $videocodec" if [ $videocodec = "ffh264" ]; then codec='h264' echo \n Playing $1 with $codec codec \n ./mplayer -vo vdpau -vc ffh264vdpau $1 exit fi if [ $videocodec = "ffmpeg2" ]; then codec='MPEG2' echo \n Playing $1 with $codec codec \n ./mplayer -vo vdpau -vc ffmpeg12vdpau $1 exit fi if [ $videocodec = "ffwmv3" ]; then codec='WMV3' echo \n Playing $1 with $codec codec \n ./mplayer -vo vdpau -vc ffwmv3vdpau $1 exit fi #VC1 is not supported on most gpus #uncomment if it is supported on your gpu #if [ $videocodec = "ffvc1" ]; then # codec='VC1' # echo \n Playing $1 with $codec codec \n # ./mplayer -vo vdpau -vc ffvc1vdpau $1 # # exit #fi #if it isnt one of those it is not supported by vdpau #so we should play without vdpau ./mplayer $1 exit
EDIT: apparently it can't find the library, not even when calling it via bumblebee's v3 optirun, although the library is there:
optirun vdpauinfo display: :0.0 screen: 0 Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory Error creating VDPAU device: 1 avilella@magneto:~$ locate libvdpau_nvidia.so | xargs ls /usr/lib/nvidia-current/vdpau/libvdpau_nvidia.so /usr/lib/nvidia-current/vdpau/libvdpau_nvidia.so.1 /usr/lib/nvidia-current/vdpau/libvdpau_nvidia.so.290.10
EDIT2: I tried again with Ubuntu 12.04 and I still can't get it to work.