[MPlayer-users] No video from V4L2 USB camera

[Gary Thomas]

belcampo <belcampo <at> zonnet.nl> writes:

> 
> Gary Thomas wrote:
> > 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
> At least update your year 2007 of mplayer first.

Read on below - I have tried it.

> > 
> > 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
> > 
> > 
> > _______________________________________________
> > MPlayer-users mailing list
> > MPlayer-users <at> mplayerhq.hu
> > https://lists.mplayerhq.hu/mailman/listinfo/mplayer-users
> 

Here's the output from the very latest version available:

MPlayer 29092-4.4.0 (C) 2000-2009 MPlayer Team
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 <olschewski at zpr.uni-koeln.de>
 comment: first try, more to come ;-)
Selected device: USB Camera (046d:0921)
 Capabilites:  video capture  read/write  streaming
 supported norms:
 inputs: 0 = tv8532;
 Current input: 0
 Current format: unknown (0x31384142)
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 0x31384142.
Read DOCS/HTML/en/codecs.html!
==========================================================================

v4l2: ioctl set mute failed: Invalid argument
v4l2: 0 frames successfully processed, 0 frames dropped.

Exiting... (End of file)