ffmpeg 2.1.3 run library link error

1. after configure and compile ffmpeg, run ffmpeg

The following error is reported.

3rdparty/ffmpeg-2.1.3/ffmpeg: relocation
error: /usr/local/ffmpeg/lib/libavfilter.so.3:
symbol sws_isSupportedEndiannessConversion,
version LIBSWSCALE_2 not defined in file libswscale.so.2
with link time reference

2. what cause above problem

The root cause producing this problem is that when

running ffmpeg,  the ffmpeg linking the relative ffmpeg

 library preinstalled on ubuntu system in /usr/lib/i386-linux-gnu/i686/cmov

or /usr/lib/i386-linux-gnu (libswscale.so.2 )

directory rather than expected ffmpeg library precompiling and

preinstalling on /usr/local/ffmpeg.

Therefore removing the old library will work.

 

ldd tool can be used to find which library to be linked.

 

 

Update:

 

This is searching order problem, if you move include /etc/ld.so.conf.d/*.conf

to tail in ld.so.conf, then rerun ldconfig, the problem will disappear.