#displace
drawbox
drawgraph
-drawgrid
+drawgrid x=-1:y=-1:width=iw/3:height=ih/3:color=invert:thickness=2
#dynaudnorm ###Invalid argument
earwax
#ebur128 ###Operation not permitted
#dialoguenhance ###Invalid argument
#feedback ###Input/output error
#multiply ###Input/output error
+#overlay_opencl ###Input/output error
+#program_opencl ###Operation not permitted
+#remap_opencl ###Input/output error
+#xfade_opencl ###Input_output error
+#openclsrc ###invalid argument