idet
il
inflate
-interlace
+#interlace ###Operation not permitted, use tinterlace
#interleave ###Operation not permitted
#join
kerndeint
#sr ###Input/output error
#xstack ###Operation not permitted
#agraphmonitor ###Input/output error
+; the ffmpeg system library on Arch has these errors:
+#ladspa
+#ass
+#drawtext
+#subtitles