Question

Help when I do ‘ffmpeg’, I get

ffmpeg: error while loading shared libraries: libavdevice.so.52: cannot open shared object file: No such file or directory.

However, when I do LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib ffmpeg, I get

FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct 11 2012 18:52:29 with gcc 4.4.6 20120305 (Red Hat 4.4.6-4)
  configuration: --enable-libmp3lame --enable-libvorbis --enable-shared --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-nonfree --enable-libtheora --enable-version3
  libavutil     50.36. 0 / 50.36. 0
  libavcore      0.16. 1 /  0.16. 1
  libavcodec    52.108. 0 / 52.108. 0
  libavformat   52.93. 0 / 52.93. 0
  libavdevice   52. 2. 3 / 52. 2. 3
  libavfilter    1.74. 0 /  1.74. 0
  libswscale     0.12. 0 /  0.12. 0
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'

Can someone tell me how to set this permanently. I am a newbie to the linux command window. I saw something about editing the /etc/ld.so.conf file, but I don’t know how to do that exactly. Any help will be appreciated

Answer 1

Edit one of these files:

1. /etc/profile
2. ~/.bash_profile
3. ~/.bash_login
4. ~/.profile

And add: LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib ffmpeg

Then reboot