12
rated 0 times
[
12]
[
0]
/ answers: 1 / hits: 33579
/ 2 Years ago, fri, december 24, 2021, 2:41:23
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
Playing $1 with $codec codec
./mplayer -vo vdpau -vc ffh264vdpau $1
exit
fi
if [ $videocodec = "ffmpeg2" ]; then
codec='MPEG2'
echo
Playing $1 with $codec codec
./mplayer -vo vdpau -vc ffmpeg12vdpau $1
exit
fi
if [ $videocodec = "ffwmv3" ]; then
codec='WMV3'
echo
Playing $1 with $codec codec
./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
Playing $1 with $codec codec
# ./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.
More From » nvidia
