[FFmpeg-user] libvo-amrwbenc.so.0: cannot open shared object file

[milad arabi]

hi all
when i run ffmpeg, i got this error:
ffmpeg: error while loading shared libraries: libvo-amrwbenc.so.0: cannot
open shared object file: No such file or directory

i install ffmpeg with this guide.
<https://trac.ffmpeg.org/wiki/CompilationGuide/Centos>

for some reason i install libvpx with yum
#yum list installed | grep vpx
libvpx.x86_64        1.3.0-5.el6_5      @updates
libvpx-devel.x86_64  1.3.0-5.el6_5      @updates

i install vo-amrwbenc-0.1.3 from source with:
./configure --prefix="$HOME/ffmpeg_build"

# find / -name "libvo-amrwbenc.so.0"
/root/ffmpeg_build/lib/libvo-amrwbenc.so.0
/usr/local/lib/libvo-amrwbenc.so.0
/milad/ffmpeg_sources/vo-amrwbenc-0.1.3/.libs/libvo-amrwbenc.so.0

#cat /etc/issue.net
CentOS release 6.5 (Final)

anybody can help me.