uname -a
Linux Nextra-desktop.home 2.6.36.2-desktop-2mnb #1 SMP Wed Dec 22 16:47:21 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux
mplayer tv:// -tv driver=v4l2:device=/dev/video0
MPlayer SVN-1.rc4.0.r32713.1plf2010.1-4.4.3 (C) 2000-2010 MPlayer Team
3DNow supported but disabled
3DNowExt supported but disabled
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
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 tv://.
TV file format detected.
Selected driver: v4l2
name: Video 4 Linux 2 input
author: Martin Olschewski
comment: first try, more to come ;-)
v4l2: your device driver does not support VIDIOC_G_STD ioctl, VIDIOC_G_PARM was used instead.
Selected device: USB Camera (093a:2600)
Capabilities: video capture read/write streaming
supported norms:
inputs: 0 = pac7311;
Current input: 0
Current format: unknown (0x47504a50)
tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
v4l2: ioctl enum norm failed: Invalid argument
Error: Cannot set norm!
Selected input hasn't got a tuner!
v4l2: Cannot get fps
v4l2: ioctl set mute failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
==========================================================================
Cannot find codec matching selected -vo and video format 0x47504A50.
==========================================================================
v4l2: ioctl set mute failed: Invalid argument
v4l2: 2 frames successfully processed, 4 frames dropped.
Exiting... (End of file)
Nincs kép! Preloaddal viszont van, de a 64 bites libv4lconvert-tel! Vagyis
LD_PRELOAD=/usr/lib64/libv4l/v4l2convert.so mplayer tv:// -tv driver=v4l2:device=/dev/video0 - Így van kép.
Skype esetén sem a 32 bites sima /usr/lib/v4l2convert.so.0 sem a 64 bites /usr/lib64/libv4l/v4l2convert.so-val nincs kép, se ezek nélkül.
A Kopetében minden további nélkül van kép, de érdekes módon nem világít zölden a webcam ledje. A v4l2ucp előnézetében viszont világít.