[MPlayer-users] No video from V4L2 USB camera

Gary Thomas gary at mlbassoc.com
Fri Jun 26 01:54:34 CEST 2009


Whenever I try to run from my V4L2 camera (Linux 2.6.30), I get this error:

root at arm_target:~ mplayer tv:// -tv driver=v4l2:width=640:height=480
MPlayer 1.0rc2-4.3.2 (C) 2000-2007 MPlayer Team
CPU: ARM

Playing tv://.
TV file format detected.
Selected driver: v4l2
 name: Video 4 Linux 2 input
 author: Martin Olschewski <olschewski at zpr.uni-koeln.de>
 comment: first try, more to come ;-)
Selected device: Camera
 Capabilites:  video capture  read/write  streaming
 supported norms:
 inputs: 0 = spca561;
 Current input: 0
 Current format: unknown (0x31363553)
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: 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
v4l2: ioctl query control failed: Invalid argument
==========================================================================
Cannot find codec matching selected -vo and video format 0x31363553.


I've tried it with 1.1.0 as well - same stuff.

Any ideas what this means and how to get past it?

n.b. this was posted via gmane and I'm not on the list, so please CC
any replies.

Thanks




More information about the MPlayer-users mailing list