ff_msmpeg4_decode_ext_header  654 libavcodec/h263dec.c             ff_msmpeg4_decode_ext_header(s, buf_size) < 0)
ff_msmpeg4_decode_ext_header  894 libavcodec/mpegvideo.h int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
ff_msmpeg4_decode_ext_header  463 libavcodec/msmpeg4dec.c             ff_msmpeg4_decode_ext_header(s, (2+5+5+17+7)/8);