Since the parsing of Vorbis/Theora fmtp headers is handled by the
parse_sdp_a_line function pointer now, the buffer in sdp_parse_fmtp
doesn't need to be this large any longer.

Patch by Josh Allmann, joshua dot allmann at gmail


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@23599 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b