diff signals/@sigconst/sigconst.m @ 1:289445d368a7

import.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/signals/@sigconst/sigconst.m	Wed Dec 19 22:46:05 2012 +0000
@@ -0,0 +1,29 @@
+classdef sigconst < signal
+	properties (GetAccess=private, SetAccess=immutable)
+		val
+		fs
+	end
+	methods
+		function s=sigconst(val,rate)
+			if nargin<2, rate=nan; end
+			s.val=reshape(val,size(val,1),1);
+			s.fs=rate;
+		end
+
+		function s=tostring(sig), s=sprintf('sigconst(%s)',mat2str(sig.val)); end
+		function c=channels(s), c=size(s.val,1); end
+		function c=rate(s), c=s.fs; end
+		function s=construct(sig)
+			s.start   = @nop;
+			s.stop    = @nop;
+			s.dispose = @nop;
+			s.reader = @reader;
+
+			function r=reader(n)
+				r = @next;
+				buf=repmat(sig.val,1,double(n));
+				function [x,rem]=next, x=buf; rem=0; end
+			end
+		end
+	end
+end