ff_id3v1_genre_str table should be const.

Originally committed as revision 19781 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/id3v1.c

@@ -22,7 +22,7 @@
 #include "id3v1.h"
 #include "libavcodec/avcodec.h"
 
-const char *ff_id3v1_genre_str[ID3v1_GENRE_MAX + 1] = {
+const char * const ff_id3v1_genre_str[ID3v1_GENRE_MAX + 1] = {
       [0] = "Blues",
       [1] = "Classic Rock",
       [2] = "Country",

libavformat/id3v1.h

@@ -31,7 +31,7 @@
 /**
  * ID3v1 genres
  */
-extern const char *ff_id3v1_genre_str[ID3v1_GENRE_MAX + 1];
+extern const char * const ff_id3v1_genre_str[ID3v1_GENRE_MAX + 1];
 
 /**
  * Read an ID3v1 tag