static void dct_unquantize_h263_inter_c(MpegEncContext *s,
DCTELEM *block, int n, int qscale);
-extern int XVMC_field_start(MpegEncContext*s, AVCodecContext *avctx);
-extern void XVMC_field_end(MpegEncContext *s);
-extern void XVMC_decode_mb(MpegEncContext *s);
+int XVMC_field_start(MpegEncContext*s, AVCodecContext *avctx);
+void XVMC_field_end(MpegEncContext *s);
+void XVMC_decode_mb(MpegEncContext *s);
/* enable all paranoid tests for rounding, overflows, etc... */