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sweetthdevil

Member

Registered: 2009-10-20

Posts: 417

Demuxer error - Mencoder recording webcam - latest kernel

Dear all,

I have an error while recording my Logitech Fusion webcam since the last couple of kernel update, please see below for details.

It seems that the latest working kernel was "kernel26-2.6.38.6-2"

Any idea how to either fix the issue by restarting a service of by a bug fix?

See webcam recording command:

mencoder tv:// -tv driver=v4l2:width=800:height=600:fps=15:device=/dev/video0  -ovc x264 -nosound -o cam_`date +%F_%T`.avi 

see terminal error output:

 MEncoder SVN-r33159-4.5.2 (C) 2000-2011 MPlayer Team
162 audio & 359 video codecs
success: format: 9  data: 0x0 - 0x0
TV file format detected.
Selected driver: v4l2
 name: Video 4 Linux 2 input
 author: Martin Olschewski <olschewski@zpr.uni-koeln.de>
 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: UVC Camera (046d:08c9)
 Capabilities:  video capture  streaming
 supported norms:
 inputs: 0 = Camera 1;
 Current input: 0
 Current format: YUYV
v4l2: ioctl set format failed: Input/output error
v4l2: ioctl set mute failed: Invalid argument
v4l2: 0 frames successfully processed, 0 frames dropped.
============ Sorry, this file format is not recognized/supported =============
=== If this file is an AVI, ASF or MPEG stream, please contact the author! ===
Cannot open demuxer.

yvonney

Member

Registered: 2008-06-11

Posts: 671

Re: Demuxer error - Mencoder recording webcam - latest kernel

yep, I'm getting the same error.
any news on what to do?!
thanks.

sweetthdevil

Member

Registered: 2009-10-20

Posts: 417

Re: Demuxer error - Mencoder recording webcam - latest kernel

no news, there is an update for mencoder today - that might solve the issue, or use ffmpeg but I can't get the same quality recording from ffmpeg for some reason...