Adding new bits for g722, g711 and g726 from Steve Underwood. Thanks Steve! I…

Adding new bits for g722, g711 and g726 from Steve Underwood.  Thanks Steve!  I libtooled them into libg7xx

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@2504 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/codec/g7xx/Makefile.am

+AM_CFLAGS	= -I./src/include -fPIC -O3 -Dsingle -funroll-loops -fomit-frame-pointer
+AUTOMAKE_OPTS	= gnu
+MAKE		= gmake
+NAME		= libg7xx
+lib_LTLIBRARIES		= libg7xx.la
+libg7xx_la_SOURCES	= g711.c g722_decode.c g722_encode.c g726.c
+
+libg7xx_la_CFLAGS	= $(AM_CFLAGS)
+libg7xx_la_LDFLAGS	= 
+
+library_includedir      = $(prefix)/include/g7xx
+library_include_HEADERS = g722.h g711.h g726.h
+
+

libs/codec/g7xx/compile

+#! /bin/sh
+# Wrapper for compilers which do not understand `-c -o'.
+
+scriptversion=2004-10-12.08
+
+# Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc.
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# 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, 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.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+case $1 in
+  '')
+     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand `-c -o'.
+Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file `INSTALL'.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit 0
+    ;;
+  -v | --v*)
+    echo "compile $scriptversion"
+    exit 0
+    ;;
+esac
+
+ofile=
+cfile=
+eat=
+
+for arg
+do
+  if test -n "$eat"; then
+    eat=
+  else
+    case $1 in
+      -o)
+	# configure might choose to run compile as `compile cc -o foo foo.c'.
+	# So we strip `-o arg' only if arg is an object.
+	eat=1
+	case $2 in
+	  *.o | *.obj)
+	    ofile=$2
+	    ;;
+	  *)
+	    set x "$@" -o "$2"
+	    shift
+	    ;;
+	esac
+	;;
+      *.c)
+	cfile=$1
+	set x "$@" "$1"
+	shift
+	;;
+      *)
+	set x "$@" "$1"
+	shift
+	;;
+    esac
+  fi
+  shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+  # If no `-o' option was seen then we might have been invoked from a
+  # pattern rule where we don't need one.  That is ok -- this is a
+  # normal compilation that the losing compiler can handle.  If no
+  # `.c' file was seen then we are probably linking.  That is also
+  # ok.
+  exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use `[/.-]' here to ensure that we don't use the same name
+# that we are using for the .o file.  Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d
+while true; do
+  if mkdir "$lockdir" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+  mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+  mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End:

libs/codec/g7xx/configure.in

+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.59)
+AC_INIT(libg7xx, 0.1, nobody@nobody.com)
+AM_INIT_AUTOMAKE(libg7xx,0.1)
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_LIBTOOL
+
+# Checks for libraries.
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS([inttypes.h memory.h stdlib.h string.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+
+# Checks for library functions.
+AC_FUNC_MALLOC
+AC_CHECK_FUNCS([memset])
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
+

libs/codec/g7xx/configure.scan

+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.59)
+AC_INIT(FULL-PACKAGE-NAME, VERSION, BUG-REPORT-ADDRESS)
+AC_CONFIG_SRCDIR([g722.h])
+AC_CONFIG_HEADER([config.h])
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_MAKE_SET
+
+# Checks for libraries.
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS([inttypes.h memory.h stdlib.h string.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+
+# Checks for library functions.
+AC_FUNC_MALLOC
+AC_CHECK_FUNCS([memset])
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT

libs/codec/g7xx/g711.c

+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * g711.c - A-law and u-law transcoding routines
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2006 Steve Underwood
+ *
+ *  Despite my general liking of the GPL, I place this code in the
+ *  public domain for the benefit of all mankind - even the slimy
+ *  ones who might try to proprietize my work and use it to my
+ *  detriment.
+ *
+ * $Id: g711.c,v 1.1 2006/06/07 15:46:39 steveu Exp $
+ */
+
+/*! \file */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <inttypes.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <tgmath.h>
+#include <assert.h>
+
+#include "g711.h"
+
+/* Copied from the CCITT G.711 specification */
+static const uint8_t ulaw_to_alaw_table[256] =
+{
+     42,  43,  40,  41,  46,  47,  44,  45,  34,  35,  32,  33,  38,  39,  36,  37,
+     58,  59,  56,  57,  62,  63,  60,  61,  50,  51,  48,  49,  54,  55,  52,  53,
+     10,  11,   8,   9,  14,  15,  12,  13,   2,   3,   0,   1,   6,   7,   4,  26,
+     27,  24,  25,  30,  31,  28,  29,  18,  19,  16,  17,  22,  23,  20,  21, 106,
+    104, 105, 110, 111, 108, 109,  98,  99,  96,  97, 102, 103, 100, 101, 122, 120,
+    126, 127, 124, 125, 114, 115, 112, 113, 118, 119, 116, 117,  75,  73,  79,  77,
+     66,  67,  64,  65,  70,  71,  68,  69,  90,  91,  88,  89,  94,  95,  92,  93,
+     82,  82,  83,  83,  80,  80,  81,  81,  86,  86,  87,  87,  84,  84,  85,  85,
+    170, 171, 168, 169, 174, 175, 172, 173, 162, 163, 160, 161, 166, 167, 164, 165,
+    186, 187, 184, 185, 190, 191, 188, 189, 178, 179, 176, 177, 182, 183, 180, 181,
+    138, 139, 136, 137, 142, 143, 140, 141, 130, 131, 128, 129, 134, 135, 132, 154,
+    155, 152, 153, 158, 159, 156, 157, 146, 147, 144, 145, 150, 151, 148, 149, 234,
+    232, 233, 238, 239, 236, 237, 226, 227, 224, 225, 230, 231, 228, 229, 250, 248,
+    254, 255, 252, 253, 242, 243, 240, 241, 246, 247, 244, 245, 203, 201, 207, 205,
+    194, 195, 192, 193, 198, 199, 196, 197, 218, 219, 216, 217, 222, 223, 220, 221,
+    210, 210, 211, 211, 208, 208, 209, 209, 214, 214, 215, 215, 212, 212, 213, 213
+};
+
+/* These transcoding tables are copied from the CCITT G.711 specification. To achieve
+   optimal results, do not change them. */
+
+static const uint8_t alaw_to_ulaw_table[256] =
+{
+     42,  43,  40,  41,  46,  47,  44,  45,  34,  35,  32,  33,  38,  39,  36,  37,
+     57,  58,  55,  56,  61,  62,  59,  60,  49,  50,  47,  48,  53,  54,  51,  52,
+     10,  11,   8,   9,  14,  15,  12,  13,   2,   3,   0,   1,   6,   7,   4,   5,
+     26,  27,  24,  25,  30,  31,  28,  29,  18,  19,  16,  17,  22,  23,  20,  21,
+     98,  99,  96,  97, 102, 103, 100, 101,  93,  93,  92,  92,  95,  95,  94,  94,
+    116, 118, 112, 114, 124, 126, 120, 122, 106, 107, 104, 105, 110, 111, 108, 109,
+     72,  73,  70,  71,  76,  77,  74,  75,  64,  65,  63,  63,  68,  69,  66,  67,
+     86,  87,  84,  85,  90,  91,  88,  89,  79,  79,  78,  78,  82,  83,  80,  81,
+    170, 171, 168, 169, 174, 175, 172, 173, 162, 163, 160, 161, 166, 167, 164, 165,
+    185, 186, 183, 184, 189, 190, 187, 188, 177, 178, 175, 176, 181, 182, 179, 180,
+    138, 139, 136, 137, 142, 143, 140, 141, 130, 131, 128, 129, 134, 135, 132, 133,
+    154, 155, 152, 153, 158, 159, 156, 157, 146, 147, 144, 145, 150, 151, 148, 149,
+    226, 227, 224, 225, 230, 231, 228, 229, 221, 221, 220, 220, 223, 223, 222, 222,
+    244, 246, 240, 242, 252, 254, 248, 250, 234, 235, 232, 233, 238, 239, 236, 237,
+    200, 201, 198, 199, 204, 205, 202, 203, 192, 193, 191, 191, 196, 197, 194, 195,
+    214, 215, 212, 213, 218, 219, 216, 217, 207, 207, 206, 206, 210, 211, 208, 209
+};
+
+uint8_t alaw_to_ulaw(uint8_t alaw)
+{
+    return alaw_to_ulaw_table[alaw];
+}
+/*- End of function --------------------------------------------------------*/
+
+uint8_t ulaw_to_alaw(uint8_t ulaw)
+{
+    return ulaw_to_alaw_table[ulaw];
+}
+/*- End of function --------------------------------------------------------*/
+/*- End of file ------------------------------------------------------------*/

libs/codec/g7xx/g722.h

+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * g722.h - The ITU G.722 codec.
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2005 Steve Underwood
+ *
+ *  Despite my general liking of the GPL, I place my own contributions 
+ *  to this code in the public domain for the benefit of all mankind -
+ *  even the slimy ones who might try to proprietize my work and use it
+ *  to my detriment.
+ *
+ * Based on a single channel G.722 codec which is:
+ *
+ *****    Copyright (c) CMU    1993      *****
+ * Computer Science, Speech Group
+ * Chengxiang Lu and Alex Hauptmann
+ *
+ * $Id: g722.h,v 1.10 2006/06/16 12:45:53 steveu Exp $
+ */
+
+
+/*! \file */
+
+#if !defined(_G722_H_)
+#define _G722_H_
+
+/*! \page g722_page G.722 encoding and decoding
+\section g722_page_sec_1 What does it do?
+The G.722 module is a bit exact implementation of the ITU G.722 specification for all three
+specified bit rates - 64000bps, 56000bps and 48000bps. It passes the ITU tests.
+
+To allow fast and flexible interworking with narrow band telephony, the encoder and decoder
+support an option for the linear audio to be an 8k samples/second stream. In this mode the
+codec is considerably faster, and still fully compatible with wideband terminals using G.722.
+
+\section g722_page_sec_2 How does it work?
+???.
+*/
+
+enum
+{
+    G722_SAMPLE_RATE_8000 = 0x0001,
+    G722_PACKED = 0x0002
+};
+
+typedef struct
+{
+    /*! TRUE if the operating in the special ITU test mode, with the band split filters
+             disabled. */
+    int itu_test_mode;
+    /*! TRUE if the G.722 data is packed */
+    int packed;
+    /*! TRUE if encode from 8k samples/second */
+    int eight_k;
+    /*! 6 for 48000kbps, 7 for 56000kbps, or 8 for 64000kbps. */
+    int bits_per_sample;
+
+    /*! Signal history for the QMF */
+    int x[24];
+
+    struct
+    {
+        int s;
+        int sp;
+        int sz;
+        int r[3];
+        int a[3];
+        int ap[3];
+        int p[3];
+        int d[7];
+        int b[7];
+        int bp[7];
+        int sg[7];
+        int nb;
+        int det;
+    } band[2];
+
+    unsigned int in_buffer;
+    int in_bits;
+    unsigned int out_buffer;
+    int out_bits;
+} g722_encode_state_t;
+
+typedef struct
+{
+    /*! TRUE if the operating in the special ITU test mode, with the band split filters
+             disabled. */
+    int itu_test_mode;
+    /*! TRUE if the G.722 data is packed */
+    int packed;
+    /*! TRUE if decode to 8k samples/second */
+    int eight_k;
+    /*! 6 for 48000kbps, 7 for 56000kbps, or 8 for 64000kbps. */
+    int bits_per_sample;
+
+    /*! Signal history for the QMF */
+    int x[24];
+
+    struct
+    {
+        int s;
+        int sp;
+        int sz;
+        int r[3];
+        int a[3];
+        int ap[3];
+        int p[3];
+        int d[7];
+        int b[7];
+        int bp[7];
+        int sg[7];
+        int nb;
+        int det;
+    } band[2];
+    
+    unsigned int in_buffer;
+    int in_bits;
+    unsigned int out_buffer;
+    int out_bits;
+} g722_decode_state_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+g722_encode_state_t *g722_encode_init(g722_encode_state_t *s, int rate, int options);
+int g722_encode_release(g722_encode_state_t *s);
+int g722_encode(g722_encode_state_t *s, uint8_t g722_data[], const int16_t amp[], int len);
+
+g722_decode_state_t *g722_decode_init(g722_decode_state_t *s, int rate, int options);
+int g722_decode_release(g722_decode_state_t *s);
+int g722_decode(g722_decode_state_t *s, int16_t amp[], const uint8_t g722_data[], int len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif