Major update

[dttsp.git] / jDttSP / wscompand.h

diff --git a/jDttSP/wscompand.h b/jDttSP/wscompand.h
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+++ b/jDttSP/wscompand.h
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+// wscompand.h
+/*
+This file is part of a program that implements a Software-Defined Radio.
+
+Copyright (C) 2004-2005 by Frank Brickle, AB2KT and Bob McGwier, N4HY
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+The authors can be reached by email at
+
+ab2kt@arrl.net
+or
+rwmcgwier@comcast.net
+
+or by paper mail at
+
+The DTTS Microwave Society
+6 Kathleen Place
+Bridgewater, NJ 08807
+*/
+
+#ifndef _wscompand_h
+#define _wscompand_h
+
+#include <fromsys.h>
+#include <defs.h>
+#include <banal.h>
+#include <splitfields.h>
+#include <datatypes.h>
+#include <bufvec.h>
+#include <cxops.h>
+
+typedef struct _wscompander {
+  int npts, nend;
+  REAL fac, *tbl;
+  CXB buff;
+} WSCompanderInfo, *WSCompander;
+
+extern void WSCompand(WSCompander wsc);
+
+// fac < 0: compression
+// fac > 0: expansion
+
+extern void WSCReset(WSCompander wsc, REAL fac);
+extern WSCompander newWSCompander(int npts, REAL fac, CXB buff);
+extern void delWSCompander(WSCompander wsc);
+
+#endif