CentOS

Please any one help me for install ffmpeg in centos 6.6

What have you tried so far? The quick answer is to install the nux repo (see the CentOS wiki article on repos) and use its version of ffmpeg.

Also note that CentOS-6.x is up to CentOS-6.9 which contains several important security fixes and you should definitely update.

Run yum update to get the last 4 years of updates.

Additional packages are often in 3rd party repos. Information on additional CentOS repos is available at http://wiki.centos.org/AdditionalResources/Repositories Pay attention to the reference on yum-priorities. The nux-dextop repo specializes in multimedia apps and has ffmpeg.