[option sample-format]
	short_opt = f
	summary = specify sample format
	typestr = format
	arg_info = required_arg
	arg_type = string
	# TODO: dedup this from enum in para.h.
	values = {
		SAMPLE_FORMAT_S8 = "S8",
		SAMPLE_FORMAT_U8 = "U8",
		SAMPLE_FORMAT_S16_LE = "S16_LE",
		SAMPLE_FORMAT_S16_BE = "S16_BE",
		SAMPLE_FORMAT_U16_LE = "U16_LE",
		SAMPLE_FORMAT_U16_BE = "U16_BE"
	}
	default_val = S16_LE
	[help]
		It is only necessary to specify this for raw audio. See the discussion
		of the --channels option.
	[/help]