[option channels]
	short_opt = c
	summary = specify number of channels
	typestr = num
	arg_info = required_arg
	arg_type = uint32
	default_val = 2
	[help]
		It is only necessary to specify this option for raw audio. If it is
		not given, the channel count is queried from the parent buffer tree
		nodes (e.g. the decoder) or the wav header. Only if this query fails,
		the default value applies.
	[/help]