+static inline void access_InitFields( access_t *p_a )
+{
+ p_a->info.i_update = 0;
+ p_a->info.i_size = 0;
+ p_a->info.i_pos = 0;
+ p_a->info.b_eof = false;
+ p_a->info.i_title = 0;
+ p_a->info.i_seekpoint = 0;
+}
+
+/**
+ * This function will return the parent input of this access.
+ * It is retained. It can return NULL.
+ */
+VLC_EXPORT( input_thread_t *, access_GetParentInput, ( access_t *p_access ) LIBVLC_USED );
+
+#define ACCESS_SET_CALLBACKS( read, block, control, seek ) \
+ p_access->pf_read = read; \
+ p_access->pf_block = block; \
+ p_access->pf_control = control; \
+ p_access->pf_seek = seek;
+
+#define STANDARD_READ_ACCESS_INIT \
+ access_InitFields( p_access ); \
+ ACCESS_SET_CALLBACKS( Read, NULL, Control, Seek ); \
+ p_sys = p_access->p_sys = calloc( 1, sizeof( access_sys_t )); \
+ if( !p_sys ) return VLC_ENOMEM;
+
+#define STANDARD_BLOCK_ACCESS_INIT \
+ access_InitFields( p_access ); \
+ ACCESS_SET_CALLBACKS( NULL, Block, Control, Seek ); \
+ p_sys = p_access->p_sys = calloc( 1, sizeof( access_sys_t ) ); \
+ if( !p_sys ) return VLC_ENOMEM;
+
+/**
+ * @}
+ */
+