-uint32_t afh_get_largest_chunk_size(struct afh_info *afhi);
-void afh_get_header(struct afh_info *afhi, void *map, const char **buf, size_t *len);
+int32_t afh_get_start_chunk(int32_t approx_chunk_num,
+ const struct afh_info *afhi);
+void afh_get_header(struct afh_info *afhi, uint8_t audio_format_id,
+ void *map, size_t mapsize, char **buf, size_t *len);
+void afh_free_header(char *header_buf, uint8_t audio_format_id);
+void clear_afhi(struct afh_info *afhi);
+unsigned afh_get_afhi_txt(int audio_format_num, struct afh_info *afhi, char **result);
+int afh_rewrite_tags(int audio_format_id, void *map, size_t mapsize,
+ struct taginfo *tags, int output_fd, const char *filename);