Warning: PHP with module API=20050922

Warning: PHP Startup: ffmpeg: Unable to initialize module
Module compiled with module API=20050922, debug=0, thread-safety=0
PHP compiled with module API=20060613, debug=0, thread-safety=0
These options need to match
in Unknown on line 0

Solucion:

Elimina ffmpeg.so y posteriormente en el directorio del ffmpeg-php

ejecuta

phpize -clean