diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 44e60ad36d..ec4a3b994f 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -880,18 +880,6 @@ int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
 int ff_rv_decode_dc(MpegEncContext *s, int n);
 void ff_rv20_encode_picture_header(MpegEncContext *s, int picture_number);
 
-
-/* msmpeg4.c */
-void ff_msmpeg4_encode_picture_header(MpegEncContext * s, int picture_number);
-void ff_msmpeg4_encode_ext_header(MpegEncContext * s);
-void ff_msmpeg4_encode_mb(MpegEncContext * s,
-                          int16_t block[6][64],
-                          int motion_x, int motion_y);
-int ff_msmpeg4_decode_picture_header(MpegEncContext * s);
-int ff_msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
-int ff_msmpeg4_decode_init(AVCodecContext *avctx);
-int ff_msmpeg4_encode_init(MpegEncContext *s);
-
 int ff_mpeg_ref_picture(AVCodecContext *avctx, Picture *dst, Picture *src);
 void ff_mpeg_unref_picture(AVCodecContext *avctx, Picture *picture);
 void ff_free_picture_tables(Picture *pic);
diff --git a/libavcodec/msmpeg4.h b/libavcodec/msmpeg4.h
index ac07762002..bcdb967401 100644
--- a/libavcodec/msmpeg4.h
+++ b/libavcodec/msmpeg4.h
@@ -49,12 +49,23 @@ void ff_msmpeg4_handle_slices(MpegEncContext *s);
 void ff_msmpeg4_encode_motion(MpegEncContext * s, int mx, int my);
 int ff_msmpeg4_coded_block_pred(MpegEncContext * s, int n,
                                 uint8_t **coded_block_ptr);
+
+int ff_msmpeg4_encode_init(MpegEncContext *s);
+void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
+void ff_msmpeg4_encode_ext_header(MpegEncContext *s);
+void ff_msmpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64],
+                          int motion_x, int motion_y);
+
+int ff_msmpeg4_decode_init(AVCodecContext *avctx);
+int ff_msmpeg4_decode_picture_header(MpegEncContext *s);
+int ff_msmpeg4_decode_ext_header(MpegEncContext *s, int buf_size);
 int ff_msmpeg4_decode_motion(MpegEncContext * s, int *mx_ptr, int *my_ptr);
 int ff_msmpeg4_decode_block(MpegEncContext * s, int16_t * block,
                             int n, int coded, const uint8_t *scan_table);
 int ff_msmpeg4_pred_dc(MpegEncContext *s, int n,
                        int16_t **dc_val_ptr, int *dir_ptr);
 
+
 #define CONFIG_MSMPEG4_DECODER (CONFIG_MSMPEG4V1_DECODER || \
                                 CONFIG_MSMPEG4V2_DECODER || \
                                 CONFIG_MSMPEG4V3_DECODER || \
diff --git a/libavcodec/mss2.c b/libavcodec/mss2.c
index 5e56e4dbb2..f57685d7b1 100644
--- a/libavcodec/mss2.c
+++ b/libavcodec/mss2.c
@@ -27,6 +27,7 @@
 #include "error_resilience.h"
 #include "internal.h"
 #include "mpeg_er.h"
+#include "msmpeg4.h"
 #include "msmpeg4data.h"
 #include "qpeldsp.h"
 #include "vc1.h"
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index 0db7d02e5c..3fa39a579e 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -32,6 +32,7 @@
 #include "internal.h"
 #include "mpeg_er.h"
 #include "mpegvideo.h"
+#include "msmpeg4.h"
 #include "msmpeg4data.h"
 #include "vc1.h"
 #include "vc1data.h"