diff --git a/libavcodec/cinepakenc.c b/libavcodec/cinepakenc.c
index 95af3cc7ef..559056a0e8 100644
--- a/libavcodec/cinepakenc.c
+++ b/libavcodec/cinepakenc.c
@@ -429,7 +429,7 @@ static int encode_codebook(CinepakEncContext *s, int *codebook, int size,
 
 // sets out to the sub picture starting at (x,y) in in
 static void get_sub_picture(CinepakEncContext *s, int x, int y,
-                            uint8_t * in_data[4], int  in_linesize[4],
+                            uint8_t *const in_data[4], const int in_linesize[4],
                             uint8_t *out_data[4], int out_linesize[4])
 {
     out_data[0]     = in_data[0] + x + y * in_linesize[0];
@@ -1097,7 +1097,7 @@ static int rd_frame(CinepakEncContext *s, const AVFrame *frame,
                                 data, linesize);
             else
                 get_sub_picture(s, 0, y,
-                                (uint8_t **)frame->data, (int *)frame->linesize,
+                                frame->data, frame->linesize,
                                 data, linesize);
             get_sub_picture(s, 0, y,
                             s->last_frame->data, s->last_frame->linesize,