It says this. I don't think it works.
[root@localhost administrator]# mplayer /dev/video0
MPlayer 1.0pre6-3.4.1 © 2000-2004 MPlayer Team
CPU: Advanced Micro Devices (Family: 8, Stepping: 0)
Detected cache-line size is 64 bytes
CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetection.
Creating config file: /root/.mplayer/config
77 audio & 188 video codecs
Linux RTC init error in ioctl (rtc_irqp_set 1024): Invalid argument
Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0 : No such file or directory
Can't init input joystick
Setting up LIRC support...
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support.
You will not be able to use your remote control.
Playing /dev/video0.
File not found: '/dev/video0'
Failed to open /dev/video0
Exiting... (End of file)
[root@localhost administrator]#