Get the number of entries in a playlist
#include <mm/mmplaylist.h>
int mmplaylist_num_entries_get( mmplaylist_t *pl )
This function gets the number of entries in a playlist. This operation can be very expensive, so the application should first check the num_entries_get_fast field in the mmplaylist_props_t structure to determine whether this operation can be completed quickly.
Note that calling this function on an empty playlist returns a value of 0.