From bcc72e4d4f05b7c16923e84ce712f2ac1904fa24 Mon Sep 17 00:00:00 2001
From: lmadsen <lmadsen@f38db490-d61c-443f-a65b-d21fe96a405b>
Date: Tue, 20 Jan 2009 21:00:59 +0000
Subject: Creating tag for the asterisk-1.4.23 release

git-svn-id: http://svn.digium.com/svn/asterisk/tags/1.4.23@169569 f38db490-d61c-443f-a65b-d21fe96a405b
---
 main/ulaw.c | 106 ------------------------------------------------------------
 1 file changed, 106 deletions(-)
 delete mode 100644 main/ulaw.c

(limited to 'main/ulaw.c')

diff --git a/main/ulaw.c b/main/ulaw.c
deleted file mode 100644
index 2735f6cce..000000000
--- a/main/ulaw.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2005, Digium, Inc.
- *
- * Mark Spencer <markster@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*! \file
- *
- * \brief u-Law to Signed linear conversion
- *
- * \author Mark Spencer <markster@digium.com> 
- */
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include "asterisk/ulaw.h"
-
-#define ZEROTRAP    /*!< turn on the trap as per the MIL-STD */
-#define BIAS 0x84   /*!< define the add-in bias for 16 bit samples */
-#define CLIP 32635
-
-unsigned char __ast_lin2mu[16384];
-short __ast_mulaw[256];
-
-
-static unsigned char linear2ulaw(short sample)
-{
-	static int exp_lut[256] = {
-		0,0,1,1,2,2,2,2,3,3,3,3,3,3,3,3,
-		4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
-		5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
-		5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
-		6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-		6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-		6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-		6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-		7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-		7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-		7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-		7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-		7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-		7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-		7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-		7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7 };
-	int sign, exponent, mantissa;
-	unsigned char ulawbyte;
-
-	/* Get the sample into sign-magnitude. */
-	sign = (sample >> 8) & 0x80;          /* set aside the sign */
-	if (sign != 0) 
-		sample = -sample;              /* get magnitude */
-	if (sample > CLIP)
-		sample = CLIP;             /* clip the magnitude */
-
-	/* Convert from 16 bit linear to ulaw. */
-	sample = sample + BIAS;
-	exponent = exp_lut[(sample >> 7) & 0xFF];
-	mantissa = (sample >> (exponent + 3)) & 0x0F;
-	ulawbyte = ~(sign | (exponent << 4) | mantissa);
-#ifdef ZEROTRAP
-	if (ulawbyte == 0)
-		ulawbyte = 0x02;   /* optional CCITT trap */
-#endif
-
-	return ulawbyte;
-}
-
-/*!
- * \brief  Set up mu-law conversion table
- */
-void ast_ulaw_init(void)
-{
-	int i;
-	for (i = 0; i < 256; i++) {
-		short mu, e, f, y;
-		static short etab[] = {0,132,396,924,1980,4092,8316,16764};
-
-		mu = 255 - i;
-		e = (mu & 0x70) / 16;
-		f = mu & 0x0f;
-		y = f * (1 << (e + 3));
-		y += etab[e];
-		if (mu & 0x80)
-			y = -y;
-		__ast_mulaw[i] = y;
-	}
-	/* set up the reverse (mu-law) conversion table */
-	for (i = -32768; i < 32768; i++) {
-		__ast_lin2mu[((unsigned short)i) >> 2] = linear2ulaw(i);
-	}
-}
-
-- 
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