swap to new ilbc library

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12095 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/ilbc/src/iLBC_define.h

@@ -0,0 +1,107 @@
+/*
+ * iLBC - a library for the iLBC codec
+ *
+ * iLBC_define.h - The head guy amongst the headers
+ *
+ * Adapted by Steve Underwood <steveu@coppice.org> from the reference
+ * iLBC code supplied in RFC3951.
+ *
+ * Original code Copyright (C) The Internet Society (2004).
+ * All changes to produce this version Copyright (C) 2008 by Steve Underwood
+ * All Rights Reserved.
+ *
+ * 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.
+ *
+ * $Id: iLBC_define.h,v 1.2 2008/03/06 12:27:38 steveu Exp $
+ */
+
+/*! \file */
+
+#if !defined(_ILBC_DEFINE_H_)
+#define _ILBC_DEFINE_H_
+
+#include <string.h>
+
+#define FS                      8000.0f
+#define NSUB_20MS               4
+#define NSUB_30MS               6
+#define NASUB_20MS              2
+
+
+#define NASUB_30MS              4
+#define NASUB_MAX               4
+#define SUBL                    40
+#define STATE_LEN               80
+#define STATE_SHORT_LEN_30MS    58
+#define STATE_SHORT_LEN_20MS    57
+
+/* LPC settings */
+
+#define ILBC_LPC_FILTERORDER    10
+#define LPC_CHIRP_SYNTDENUM     0.9025f
+#define LPC_CHIRP_WEIGHTDENUM   0.4222f
+#define LPC_LOOKBACK            60
+#define LPC_N_20MS              1
+#define LPC_N_30MS              2
+#define LPC_N_MAX               2
+#define LPC_ASYMDIFF            20
+#define LPC_BW                  60.0f
+#define LPC_WN                  1.0001f
+#define LSF_NSPLIT              3
+#define LSF_NUMBER_OF_STEPS     4
+#define LPC_HALFORDER           (ILBC_LPC_FILTERORDER/2)
+
+/* cb settings */
+
+#define CB_NSTAGES              3
+#define CB_EXPAND               2
+#define CB_MEML                 147
+#define CB_FILTERLEN            2*4
+#define CB_HALFFILTERLEN        4
+#define CB_RESRANGE             34
+#define CB_MAXGAIN              1.3f
+
+/* enhancer */
+
+#define ENH_BLOCKL              80  /* block length */
+#define ENH_BLOCKL_HALF         (ENH_BLOCKL/2)
+#define ENH_HL                  3   /* 2*ENH_HL+1 is number blocks in said second sequence */
+#define ENH_SLOP                2   /* max difference estimated and correct pitch period */
+#define ENH_PLOCSL              20  /* pitch-estimates and pitch-locations buffer length */
+#define ENH_OVERHANG            2
+#define ENH_UPS0                4   /* upsampling rate */
+#define ENH_FL0                 3   /* 2*FLO+1 is the length of each filter */
+#define ENH_VECTL               (ENH_BLOCKL + 2*ENH_FL0)
+
+#define ENH_CORRDIM             (2*ENH_SLOP + 1)
+#define ENH_NBLOCKS             (ILBC_BLOCK_LEN_MAX/ENH_BLOCKL)
+#define ENH_NBLOCKS_EXTRA       5
+#define ENH_NBLOCKS_TOT         8   /* ENH_NBLOCKS + ENH_NBLOCKS_EXTRA */
+#define ENH_BUFL                (ENH_NBLOCKS_TOT*ENH_BLOCKL)
+#define ENH_ALPHA0              0.05f
+
+/* Down sampling */
+
+#define FILTERORDER_DS          7
+#define DELAY_DS                3
+#define FACTOR_DS               2
+
+/* bit stream defs */
+
+#define STATE_BITS              3
+#define BYTE_LEN                8
+
+/* help parameters */
+
+#define FLOAT_MAX               1.0e37f
+#define EPS                     2.220446049250313e-016f
+#define PI                      3.14159265358979323846f
+#define MIN_SAMPLE              -32768
+#define MAX_SAMPLE              32767
+#define TWO_PI                  6.283185307f
+#define PI2                     0.159154943f
+
+#endif
+/*- End of file ------------------------------------------------------------*/