diff --git a/libavcodec/mpegvideo_common.h b/libavcodec/mpegvideo_common.h
index 8e46e692f9..135bd1f557 100644
--- a/libavcodec/mpegvideo_common.h
+++ b/libavcodec/mpegvideo_common.h
@@ -40,8 +40,6 @@
 #include <limits.h>
 
 int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
-int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
-void  denoise_dct_c(MpegEncContext *s, DCTELEM *block);
 
 /**
  * allocates a Picture
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 0f7142bee5..0018ad50f4 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -48,6 +48,8 @@
 static int encode_picture(MpegEncContext *s, int picture_number);
 static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
 static int sse_mb(MpegEncContext *s);
+static void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
+static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
 
 /* enable all paranoid tests for rounding, overflows, etc... */
 //#define PARANOID