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  1. 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!!

    Code:
    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'
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  2. I'm a MEGA Super Moderator Baldrick's Avatar
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    What instructions? WHere? ANy errors?
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  3. Originally Posted by Baldrick View Post
    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"
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  4. I'm a MEGA Super Moderator Baldrick's Avatar
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  5. Member
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    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/
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