Set the supported formats of the specified sink (identified by its numerical index) if supported by the sink.
+ FORMATS is specified as a semi-colon (;) separated list of formats in the form
+ 'encoding[, key1=value1, key2=value2, ...]' (for example, AC3 at 32000, 44100 and 48000 Hz would be specified as
+ 'ac3-iec61937, format.rate = "[ 32000, 44100, 48000 ]"').
+