1 files changed, 32 insertions, 0 deletions

diff --git a/apps/plugins/lib/mul_id3.h b/apps/plugins/lib/mul_id3.h
index d08095de5c..1bb311c441 100644
--- a/apps/plugins/lib/mul_id3.h
+++ b/apps/plugins/lib/mul_id3.h
@@ -21,7 +21,39 @@
 #ifndef MUL_ID3_H
 #define MUL_ID3_H
 
+struct dir_stats {
+    char dirname[MAX_PATH];
+    unsigned int dir_count;
+    unsigned int file_count;
+    unsigned int audio_file_count;
+    unsigned int m3u_file_count;
+    unsigned int img_file_count;
+    unsigned int vid_file_count;
+    unsigned int max_files_in_dir;
+    unsigned long long byte_count;
+    bool count_all;
+    bool canceled;
+};
+
+/* create mp3entry that contains matching metadata from multiple tracks */
 void collect_id3(struct mp3entry *id3, bool is_first_track);
 void finalize_id3(struct mp3entry *id3);
 
+/* Traverse directory, collecting stats/track metadata.
+ *
+ * 1) If id3_cb is null, dir_properties calculates all dir stats, including the
+ * audio file count.
+ *
+ * 2) If id3_cb points to a function, dir_properties will call it for every audio
+ * file encountered, to allow the file's metadata to be collected. The displayed
+ * progress bar's maximum value is set to the audio file count.
+ * Stats are assumed to have already been generated by a preceding run.
+ *
+ * If the count_all parameter is set to false, images and videos are not counted,
+ * nor is the playlist, image, video or max file in dir count displayed.
+ */
+bool collect_dir_stats(struct dir_stats *stats, bool (*id3_cb)(const char*));
+void display_dir_stats(struct dir_stats *stats);
+unsigned long human_size(unsigned long long byte_count, int32_t *unit_lang_id);
+
 #endif /* MUL_ID3_H */