spu_Create
spu_Destroy
spu_DisplaySubpicture
-spu_Init
+spu_ChangeFilters
spu_RenderSubpictures
spu_SortSubpictures
spu_RegisterChannel
vout_FlushSubpictureChannel
vout_EnableFilter
vout_GetSnapshot
-vout_GetSpu
vout_OSDIcon
vout_OSDMessage
vout_OSDEpg