How to install libass in Centos?

[sendspellme]

Hi

I am totally noob in linux command.
I just followed the instruction found on net, but seem I didn't install libass successfully.
I need to encode subtitle into my video using my centos server (my pc is too slow).
Here are some info I copied from my server, please suggest what should i do.
Appreciate your help!!

ffmpeg version N-81045-g450cf40-syslint Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-17)
  configuration: --prefix=/usr/local/cpffmpeg --enable-shared --enable-nonfree --enable-gpl --enable-pthreads --enable-libopencore-amrnb --enable-decoder=liba52 --enable-libopencore-amrwb --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --extra-cflags=-I/usr/local/cpffmpeg/include/ --extra-ldflags=-L/usr/local/cpffmpeg/lib --enable-version3 --extra-version=syslint
  libavutil      55. 28.100 / 55. 28.100
  libavcodec     57. 50.100 / 57. 50.100
  libavformat    57. 42.100 / 57. 42.100
  libavdevice    57.  0.102 / 57.  0.102
  libavfilter     6. 47.100 /  6. 47.100
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  1.100 /  2.  1.100
  libpostproc    54.  0.100 / 54.  0.100
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'

[Baldrick]

What instructions? WHere? ANy errors?

[sendspellme]

What instructions? WHere? ANy errors?

hi
i follow the instruction here
https://trac.ffmpeg.org/wiki/CompilationGuide/Centos

but its missing the guide for libass
so i just follow here
http://www.linuxfromscratch.org/blfs/view/svn/multimedia/libass.html
http://ffmpeg.gusari.org/viewtopic.php?f=8&t=896

but its not working..
i am totally noob in linux.
i have no idea which directory i should be in, what command i should type
so i just copy and paste..

i have experience running in Windows without problem, but not in linux...

i just need libass so that i can encode subtitle into the video...
when i run
ffmpeg -i a.mp4 -vf "ass=a.ass" b.mp4
it just mention no such filter: "ass"

[Baldrick]

Try follow a centos tutorial:
https://trac.ffmpeg.org/wiki/CompilationGuide/Centos

[Hoser Rob]

There aren't many CentOS (or other Linux distro) users here. I use Mint or Ubuntu which are both Debian based. Your linux distro is Red Hat/Fedora based and that uses a different package management system. Which I haven't used in ages.

This forum probably isn't the right place for this question. Your problem seems to be that you just don't know how to install by compiling, or even the problems that can cause if you don't know what you're doing. That first link from the ffmpeg wiki is for people who want to compile the ffmpeg package itself and it is definitely not meant for noobs. The second one doesn't look like an ffmpeg plugin to me. The third one isn't for Linux it's for OS X.

The only thing I've installed by compilation in ages in Linux was a Ubuntu backported wireless driver. It's a PITA and I have adopted the attitude that if the people who developed it can't come up with a nice Debian style right clickable .deb file ... which will find and install dependencies automatically .. how much do I want it?

You also have to remember that backwards compatibility in Linux isn't all that great. Don't install anything that doesn't say it's for your release version. Old versions very li

Have you looked at the CentOS forum?

https://www.centos.org/forums/