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• FFmpeg -bash : ffmpeg : command not found

  12 février 2015, par Daniel Khajehpour

  OK, so I have gone up and down the internet trying to figure out what it is I am doing wrong ... and yet I’m in the middle of nowhere.
  I am basically trying to install the FFmpeg on my CENTOS 6.6 dedicated server by following the instructions here : https://trac.ffmpeg.org/wiki/CompilationGuide/Centos

  Everything seems to go just fine throughout the process. When it’s all done, I type in "ffmpeg" hit the enter and keep on getting this extremely ugly error :

  -bash : -bash: : command not found

  I’m not much of a shell guy, but working with it all day today, I can say that this means that it’s not installed correctly. So, I tried re-installing it, and it tells me all the packages already exist now ... . Here is a copy if what I am doing and what I am getting :

  root@server1 [~]# ffmpeg -version
  
  -bash: ffmpeg: command not found
  
  
  
  root@server1 [~]# yum install autoconf automake gcc gcc-c++ git libtool make nasm pkgconfig zlib-devel
  
  Loaded plugins: fastestmirror, priorities, security
  
  Setting up Install Process
  
  Loading mirror speeds from cached hostfile
  
   * base: centos.mirror.ndchost.com
  
   * extras: centos-distro.cavecreek.net
  
   * updates: mirrors.easynews.com
  
  Package autoconf-2.63-5.1.el6.noarch already installed and latest version
  
  Package automake-1.11.1-4.el6.noarch already installed and latest version
  
  Package gcc-4.4.7-11.el6.x86_64 already installed and latest version
  
  Package gcc-c++-4.4.7-11.el6.x86_64 already installed and latest version
  
  Package git-1.7.1-3.el6_4.1.x86_64 already installed and latest version
  
  Package libtool-2.2.6-15.5.el6.x86_64 already installed and latest version
  
  Package 1:make-3.81-20.el6.x86_64 already installed and latest version
  
  Package nasm-2.07-7.el6.x86_64 already installed and latest version
  
  Package 1:pkgconfig-0.23-9.1.el6.x86_64 already installed and latest version
  
  Package zlib-devel-1.2.3-29.el6.x86_64 already installed and latest version
  
  Nothing to do

  Any ideas or help is greatly appreciated !

• FFMPEG FLV to 3GP more then 176x144 size

  8 mars 2012, par Tom

  Hi all
  I am converting my.flv to my.gp3 with this command

  ffmpeg -i my.flv -acodec libamr_nb -s 176x144 -ar 8000 -b 120000 -vcodec h263 -ab 10.2k -ac 1 my.3gp

  but size of my flv is 320x240 and I am trying change 176x144 to 320x240 but getting 3gp file with 0kb , how can I do that and get my.3gp file with same size like my.flv

  And one more thing , the my.flv is product of converting from my.swf(vide) , if you know some command which will do swf->3gp with same size it would be better .
  Thanks a lot.

• FFMPEG FLV to 3GP more than 176x144 size

  25 septembre 2012, par Tom

  Hi all
  I am converting my.flv to my.gp3 with this command

  ffmpeg -i my.flv -acodec libamr_nb -s 176x144 -ar 8000 -b 120000 -vcodec h263 -ab 10.2k -ac 1 my.3gp

  but size of my flv is 320x240 and I am trying change 176x144 to 320x240 but getting 3gp file with 0kb , how can I do that and get my.3gp file with same size like my.flv

  And one more thing , the my.flv is product of converting from my.swf(vide) , if you know some command which will do swf->3gp with same size it would be better .
  Thanks a lot.