struct afh_info *afhi);
const char *audio_format_name(int);
void afh_get_chunk(long unsigned chunk_num, struct afh_info *afhi,
- void *map, char **buf, size_t *len);
-void afh_get_header(struct afh_info *afhi, void *map, char **buf, size_t *len);
+ void *map, const char **buf, size_t *len);
+void afh_get_header(struct afh_info *afhi, void *map, const char **buf, size_t *len);