what is the error "ERROR: ld.so:" mean?

duke.tim · 06-09-2010, 06:26 AM

so i've been running into some errors recently that look like they do below. What does this message mean. What could cause such a thing, and Is there possible fixes. I think it might be related to using a 64bit system.

Code:

ERROR: ld.so: object '/usr/lib/libv4l/v4l1convert.so' from LD_PRELOAD cannot be preloaded: ignored.


ERROR: ld.so: object '/usr/local/lib/libgstfakevideo.so' from LD_PRELOAD cannot be preloaded: ignored.


ERROR: ld.so: object '/lib/libdl.so.2' from LD_PRELOAD cannot be preloaded: ignored.

NightHorse · 06-09-2010, 06:55 AM

I think it's some missing libraries. Check them if they exist. If not try to install them.

Also when those errors appeared??

duke.tim · 06-09-2010, 05:13 PM

I got one of them from effectv but found somewhere to put

Code:

LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so effectv

compared to v4l1convert.so , don't know why one works versus the other.
by the way what are *.so files? also when starting a script for gstfakevideo. I found the script online, and it's supposed to place effectv effects in skype....but doesn't work.

duke.tim · 06-10-2010, 04:07 PM

The files seem to be installed. at least I can find them in their proper folders.

NightHorse · 06-11-2010, 09:04 PM

The *.so files are libraries. Like dll files in windows.

I am not sure what's the problem for your case. May be if you posted the commands that lead to those errors I can try them and see what could be wrong...

Note: I only tried

Code:

LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype

with skype and gyachi and they been working. I don't know about the other ones. If you tell me what were you trying to do? and where did you get the instructions from? to PRELOAD those libraries I can check it out with you.

duke.tim · 06-12-2010, 02:39 AM

this is the script

Code:

#!/bin/bash
#
# setup gstfakevideo preload to hijack calls made
# to /dev/video0
#
#This script runs Skype with libskype_dsp_hijacker.so "filter"
#It allows redefining of what devices Skype uses for 
#microphone, speakers and mixer (especially microphone and
#speakers can use different devices)

# -- CONFIGURATION --

#default configuration when no option is specified

export HIJACKVIDEO="/dev/video0"
export GST_PIPE="v4lsrc device=/dev/video2 ! ffmpegcolorspace"  

prefix=/usr/local
exec_prefix=${prefix}

#prefer use of libskype_dsp_hijacker from current directory
if test -f ./libgstfakevideo.so; then 
  libdir=.
else
  libdir=${exec_prefix}/lib
fi

LD_PRELOAD=${libdir}/libgstfakevideo.so
if test -f /lib/libdl.so.2; then
	LD_PRELOAD=$LD_PRELOAD:/lib/libdl.so.2
fi
export LD_PRELOAD


#Move current webcam over to /dev/video3

if test -e /dev/video0; then 
  sudo mv /dev/video0 /dev/video3
fi


# load vloopback module first

sudo modprobe vloopback

# invoke effectv first, and give it a second to load

LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so effectv -device /dev/video3 -vloopback /dev/video1 &

sleep 1

exec skype

unSpawn · 06-12-2010, 04:37 AM

Quote:

Originally Posted by duke.tim

I think it might be related to using a 64bit system.

Listing the package the libraries are in may reveal libraries residing in /usr/lib64 instead of /usr/lib.