This matches the return value of ogg_find_codec and fixes
"libavformat/oggdec.c:333: warning: assignment discards qualifiers from
pointer target type"

Patch by Daniel Verkamp (daniel - drv . nu)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18769 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b