diff --git a/libavformat/dv.h b/libavformat/dv.h
index a8c051456b..6bfb4ab0dd 100644
--- a/libavformat/dv.h
+++ b/libavformat/dv.h
@@ -38,7 +38,7 @@ void dv_offset_reset(DVDemuxContext *c, int64_t frame_offset);
 
 typedef struct DVMuxContext DVMuxContext;
 DVMuxContext* dv_init_mux(AVFormatContext* s);
-int dv_assemble_frame(DVMuxContext *c, AVStream*, const uint8_t*, int, uint8_t**);
+int dv_assemble_frame(DVMuxContext *c, AVStream*, uint8_t*, int, uint8_t**);
 void dv_delete_mux(DVMuxContext*);
 
 #endif /* AVFORMAT_DV_H */
diff --git a/libavformat/dvenc.c b/libavformat/dvenc.c
index 7245e6e964..c8dc5a8301 100644
--- a/libavformat/dvenc.c
+++ b/libavformat/dvenc.c
@@ -231,7 +231,7 @@ static void dv_inject_metadata(DVMuxContext *c, uint8_t* frame)
  */
 
 int dv_assemble_frame(DVMuxContext *c, AVStream* st,
-                      const uint8_t* data, int data_size, uint8_t** frame)
+                      uint8_t* data, int data_size, uint8_t** frame)
 {
     int i, reqasize;