Remove inappropriate const qualifier from function argument, fixes the warning:

libavformat/dvenc.c:256: warning: passing argument 2 of ‘av_fifo_generic_write’ discards qualifiers from pointer target type

Originally committed as revision 16460 to svn://svn.ffmpeg.org/ffmpeg/trunk

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 */

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;