input_item: Add meta extras related API

include/vlc_input_item.h

@@ -293,6 +293,9 @@ VLC_API vlc_tick_t input_item_GetDuration( input_item_t * p_i );
 VLC_API void input_item_SetDuration( input_item_t * p_i, vlc_tick_t i_duration );
 VLC_API bool input_item_IsPreparsed( input_item_t *p_i );
 VLC_API bool input_item_IsArtFetched( input_item_t *p_i );
+VLC_API char * input_item_GetMetaExtra( input_item_t *p_i, const char *psz_name ) VLC_USED;
+VLC_API unsigned input_item_GetMetaExtraNames( input_item_t *p_i, char ***pppsz_names ) VLC_USED;
+VLC_API void input_item_SetMetaExtra( input_item_t *p_i, const char *psz_name, const char *psz_value );
 
 #define INPUT_META( name ) \
 static inline \

src/input/item.c

@@ -134,6 +134,13 @@ void input_item_SetMeta( input_item_t *p_i, vlc_meta_type_t meta_type, const cha
         .u.input_item_meta_changed.meta_type = meta_type } );
 }
 
+void input_item_SetMetaExtra( input_item_t *p_i, const char *psz_name, const char *psz_value )
+{
+    vlc_mutex_lock( &p_i->lock );
+    vlc_meta_SetExtra( p_i->p_meta, psz_name, psz_value );
+    vlc_mutex_unlock( &p_i->lock );
+}
+
 void input_item_CopyOptions( input_item_t *p_child,
                              input_item_t *p_parent )
 {
@@ -248,6 +255,30 @@ char *input_item_GetMeta( input_item_t *p_i, vlc_meta_type_t meta_type )
     return psz;
 }
 
+const char *input_item_GetMetaExtraLocked( input_item_t *item, const char *psz_name )
+{
+    vlc_mutex_assert( &item->lock );
+    return vlc_meta_GetExtra( item->p_meta, psz_name );
+}
+
+char *input_item_GetMetaExtra( input_item_t *p_i, const char *psz_name )
+{
+    vlc_mutex_lock( &p_i->lock );
+    const char *value = input_item_GetMetaExtraLocked( p_i, psz_name );
+    char *psz = value ? strdup( value ) : NULL;
+    vlc_mutex_unlock( &p_i->lock );
+    return psz;
+}
+
+unsigned input_item_GetMetaExtraNames( input_item_t *p_i, char ***pppsz_names )
+{
+    vlc_mutex_lock( &p_i->lock );
+    unsigned count = vlc_meta_GetExtraCount( p_i->p_meta );
+    *pppsz_names = vlc_meta_CopyExtraNames( p_i->p_meta );
+    vlc_mutex_unlock( &p_i->lock );
+    return count;
+}
+
 /* Get the title of a given item or fallback to the name if the title is empty */
 char *input_item_GetTitleFbName( input_item_t *p_item )
 {

src/libvlccore.sym

@@ -224,6 +224,9 @@ input_item_AddSlave
 input_item_Parse
 input_item_parser_id_Interrupt
 input_item_parser_id_Release
+input_item_GetMetaExtra
+input_item_GetMetaExtraNames
+input_item_SetMetaExtra
 input_resource_New
 input_resource_Release
 vlc_readdir_helper_init