Fixes:
h264.h:1222:38: warning: initialization from incompatible pointer type
h264.h:1299:38: warning: initialization from incompatible pointer type
h264.h:1314:42: warning: initialization from incompatible pointer type


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@21814 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b