diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index a8a8f0bbed..2b8be33985 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -1189,9 +1189,6 @@ static int free_context_frame(MpegEncContext *s)
 
     s->linesize = s->uvlinesize = 0;
 
-    for (i = 0; i < 3; i++)
-        av_freep(&s->visualization_buffer[i]);
-
     return 0;
 }
 
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 41850df377..a5831fa3bf 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -343,7 +343,6 @@ typedef struct MpegEncContext {
     Picture *last_picture_ptr;     ///< pointer to the previous picture.
     Picture *next_picture_ptr;     ///< pointer to the next picture (for bidir pred)
     Picture *current_picture_ptr;  ///< pointer to the current picture
-    uint8_t *visualization_buffer[3]; ///< temporary buffer vor MV visualization
     int last_dc[3];                ///< last DC values for MPEG1
     int16_t *dc_val_base;
     int16_t *dc_val[3];            ///< used for mpeg4 DC prediction, all 3 arrays must be continuous