Macro constants defined in mmplaylist.h to specify return codes for API functions.
#include <mm/mmplaylist.h>
#define MMPLAYLIST_PL_ENTRY_FATAL -1
An error occurred and the plugin validation attempt failed.
#define MMPLAYLIST_PL_ENTRY_INVALID 0
Neither the raw nor the UTF-8 proposed plugin name is valid.
#define MMPLAYLIST_PL_ENTRY_RAW_VALID 1
The raw plugin name is valid.
#define MMPLAYLIST_PL_ENTRY_UTF8_VALID 2
The UTF-8 plugin name is valid.