-VLC_EXPORT( void, picture_pool_NonEmpty, ( picture_pool_t *, bool b_reset ) );
+VLC_EXPORT( void, picture_pool_NonEmpty, ( picture_pool_t *, bool reset ) );
+
+/**
+ * It reserves picture_count pictures from the given pool and returns
+ * a new pool with thoses pictures.
+ *
+ * The master pool must be full.
+ * The returned pool must be deleted before the master pool.
+ * When deleted, all pictures return to the master pool.
+ */
+VLC_EXPORT( picture_pool_t *, picture_pool_Reserve, (picture_pool_t *, int picture_count) LIBVLC_USED );
+
+/**
+ * It returns the size of the given pool.
+ */
+VLC_EXPORT( int, picture_pool_GetSize, (picture_pool_t *) );
+