playlist/item.c, include/vlc_playlist.h: introduced playlist_ItemCopy

playlist/item-ext.c: O(log(N)) playlist_GetItemById()

include/vlc_playlist.h

@@ -267,7 +267,9 @@ VLC_EXPORT( vlc_bool_t, playlist_IsServicesDiscoveryLoaded, ( playlist_t *,const
 /* Item management functions (act on items) */
 #define playlist_AddItem(p,pi,i1,i2) playlist_ItemAdd(p,pi,i1,i2)
 #define playlist_ItemNew( a , b, c ) __playlist_ItemNew(VLC_OBJECT(a) , b , c )
+#define playlist_ItemCopy( a, b ) __playlist_ItemCopy(VLC_OBJECT(a), b )
 VLC_EXPORT( playlist_item_t* , __playlist_ItemNew, ( vlc_object_t *,const char *,const char * ) );
+VLC_EXPORT( playlist_item_t* , __playlist_ItemCopy, ( vlc_object_t *,playlist_item_t* ) );
 VLC_EXPORT( playlist_item_t* , playlist_ItemNewWithType, ( vlc_object_t *,const char *,const char *, int ) );
 VLC_EXPORT( int, playlist_ItemDelete, ( playlist_item_t * ) );
 VLC_EXPORT( int, playlist_ItemAddParent, ( playlist_item_t *, int,playlist_item_t *) );

src/playlist/item-ext.c

@@ -460,14 +460,26 @@ playlist_item_t *playlist_LockItemGetByPos( playlist_t *p_playlist, int i_pos )
  */
 playlist_item_t * playlist_ItemGetById( playlist_t * p_playlist , int i_id )
 {
-    int i;
-    for( i =  0 ; i < p_playlist->i_all_size ; i++ )
+    int i, i_top, i_bottom;
+    i_bottom = 0; i_top = p_playlist->i_all_size;
+    i = i_top / 2;
+    while( p_playlist->pp_all_items[i]->input.i_id != i_id &&
+           i_top > i_bottom )
+    {
+        if( p_playlist->pp_all_items[i]->input.i_id < i_id )
         {
+            i_bottom = i;
+        }
+        else
+        {
+            i_top = i;
+        }
+        i = i_bottom + ( i_top - i_bottom ) / 2;
+    }
     if( p_playlist->pp_all_items[i]->input.i_id == i_id )
     {
         return p_playlist->pp_all_items[i];
     }
-    }
     return NULL;
 }
 

src/playlist/item.c

@@ -92,6 +92,87 @@ playlist_item_t * playlist_ItemNewWithType( vlc_object_t *p_obj,
     return p_item;
 }
 
+/**
+ * Copy a playlist item
+ *
+ * Creates a new item with name, mrl and meta infor like the
+ * source. Does not copy children for node type items.
+ * \param p_obj any vlc object, needed for mutex init
+ * \param p_item the item to copy
+ * \return pointer to the new item, or NULL on error
+ * \note function takes the lock on p_item
+ */
+playlist_item_t *__playlist_ItemCopy( vlc_object_t *p_obj,
+                                      playlist_item_t *p_item )
+{
+    playlist_item_t *p_res;
+    int i;
+    vlc_mutex_lock( &p_item->input.lock );
+
+    p_res = malloc( sizeof( playlist_item_t ) );
+    if( p_res == NULL )
+    {
+        vlc_mutex_unlock( &p_item->input.lock );
+        return NULL;
+    }
+
+    memcpy( p_res, p_item, sizeof(playlist_item_t) );
+    vlc_mutex_init( p_obj, &p_res->input.lock );
+    p_res->input.ppsz_options = malloc( p_item->input.i_options * sizeof(char*));
+    for( i = 0; i < p_item->input.i_options; i++ )
+    {
+        p_res->input.ppsz_options[i] = strdup( p_item->input.ppsz_options[i] );
+    }
+    if( p_item->i_children != -1 )
+    {
+        msg_Warn( p_obj, "not copying playlist items children" );
+        p_res->i_children = -1;
+        p_res->pp_children = NULL;
+    }
+    p_res->i_parents = 0;
+    p_res->pp_parents = NULL;
+    
+    if( p_item->input.psz_name )
+        p_res->input.psz_name = strdup( p_item->input.psz_name );
+    if( p_item->input.psz_uri )
+        p_res->input.psz_uri = strdup( p_item->input.psz_uri );
+    
+    if( p_item->input.i_es )
+    {
+        p_res->input.es = (es_format_t**)malloc( p_item->input.i_es * sizeof(es_format_t*));
+        for( i = 0; i < p_item->input.i_es; i++ )
+        {
+            p_res->input.es[ i ] = (es_format_t*)malloc(sizeof(es_format_t*));
+            es_format_Copy( p_res->input.es[ i ],
+                         p_item->input.es[ i ] );
+        }
+    }
+    if( p_item->input.i_categories )
+    {
+        p_res->input.pp_categories = NULL;
+        p_res->input.i_categories = 0;
+        for( i = 0; i < p_item->input.i_categories; i++ )
+        {
+            info_category_t *p_incat;
+            p_incat = p_item->input.pp_categories[i];
+            if( p_incat->i_infos )
+            {
+                int j;
+                for( j = 0; j < p_incat->i_infos; j++ )
+                {
+                    vlc_input_item_AddInfo( &p_res->input, p_incat->psz_name,
+                                            p_incat->pp_infos[j]->psz_name,
+                                            "%s", /* to be safe */
+                                            p_incat->pp_infos[j]->psz_value );
+                }
+            }
+        }
+    }
+
+    vlc_mutex_unlock( &p_item->input.lock );
+    return p_res;
+}
+
 /**
  * Deletes a playlist item
  *