Cherry pick of 14407e1.
Cherry pick of 14407e1.

Author: Egor Leonenko <jagor@leonenko.info>
Date: 19 décembre 2013 23:36:16 UTC+1

Call avformat_network_init() for all

Guoxweii/kxmovie,timscycliq/kxmovie,timscycliq/kxmovie,Guoxweii/kxmovie