int typestr = "num"
default = "44100"
optional
+
+option "sample-format" f
+#~~~~~~~~~~~~~~~~~~~~~~~
+"specify sample format"
+# This must match the enum sample_format of para.h
+values = "S8", "U8", "S16_LE", "S16_BE", "U16_LE", "U16_BE" enum
+default = "S16_LE"
+optional
+