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authorMaxim Sobolev <sobomax@FreeBSD.org>2009-01-12 20:48:54 +0000
committerMaxim Sobolev <sobomax@FreeBSD.org>2009-01-12 20:48:54 +0000
commit5fff4723c5b262671d09a847b916a19e9292e33a (patch)
tree11b3d5ad055d160a1f0c37e2b8779efb67c6e64f /net/asterisk12
parentbebc5ceb3cde3eb4182b95313df533c1886edd59 (diff)
downloadports-5fff4723c5b262671d09a847b916a19e9292e33a.tar.gz
ports-5fff4723c5b262671d09a847b916a19e9292e33a.zip
Notes
Diffstat (limited to 'net/asterisk12')
-rw-r--r--net/asterisk12/Makefile3
-rw-r--r--net/asterisk12/distinfo6
-rw-r--r--net/asterisk12/files/patch-codecs::Makefile19
-rw-r--r--net/asterisk12/files/patch-codecs_ilbc7194
-rw-r--r--net/asterisk12/files/patch-include_asterisk_astobj2.h14
-rw-r--r--net/asterisk12/pkg-plist1
6 files changed, 7227 insertions, 10 deletions
diff --git a/net/asterisk12/Makefile b/net/asterisk12/Makefile
index c2f4851f3c99..7e8601e7deef 100644
--- a/net/asterisk12/Makefile
+++ b/net/asterisk12/Makefile
@@ -6,9 +6,8 @@
#
PORTNAME= asterisk
-PORTVERSION= 1.2.27
+PORTVERSION= 1.2.30.2
PKGNAMESUFFIX= 12
-PORTREVISION= 2
CATEGORIES= net
MASTER_SITES= http://ftp.digium.com/pub/asterisk/ \
http://ftp.digium.com/pub/asterisk/old-releases/
diff --git a/net/asterisk12/distinfo b/net/asterisk12/distinfo
index 70758082ccd9..b5fbda7ba356 100644
--- a/net/asterisk12/distinfo
+++ b/net/asterisk12/distinfo
@@ -1,6 +1,6 @@
-MD5 (asterisk-1.2.27.tar.gz) = b4bbd660472e56e2f80e0c0391e64b10
-SHA256 (asterisk-1.2.27.tar.gz) = 2407996df3487060b9db1a4ca73f405b633a802ba9c1454f7f3ccaaa856971e6
-SIZE (asterisk-1.2.27.tar.gz) = 10645295
+MD5 (asterisk-1.2.30.2.tar.gz) = 42beb96eaec0e9f8f8e803dbc8c92b3b
+SHA256 (asterisk-1.2.30.2.tar.gz) = e796648e7d29dec74c0d6bd752e985b3ac1e44e77b2ea87818d6fe003975fd91
+SIZE (asterisk-1.2.30.2.tar.gz) = 10627557
MD5 (asterisk-1.2.26.1-codec-negotiation-20080118.diff.gz) = 2ae6d6cc44fdd89dab804bcf6ac79579
SHA256 (asterisk-1.2.26.1-codec-negotiation-20080118.diff.gz) = d489cf3921d0ff11571afd273b4cbd02b0e8ba5f225ac4c6fd6fc85a0de54f6b
SIZE (asterisk-1.2.26.1-codec-negotiation-20080118.diff.gz) = 33572
diff --git a/net/asterisk12/files/patch-codecs::Makefile b/net/asterisk12/files/patch-codecs::Makefile
index 646028d6b444..74435e63a935 100644
--- a/net/asterisk12/files/patch-codecs::Makefile
+++ b/net/asterisk12/files/patch-codecs::Makefile
@@ -12,7 +12,7 @@ $FreeBSD$
ifeq (${OSARCH},NetBSD)
SOLINK+=-L$(CROSS_COMPILE_TARGET)/usr/pkg/lib
endif
-@@ -43,8 +43,8 @@
+@@ -43,28 +43,28 @@
UI_SPEEX=$(wildcard $(CROSS_COMPILE_TARGET)/usr/include/speex.h)
UIS_SPEEX=$(wildcard $(CROSS_COMPILE_TARGET)/usr/include/speex/speex.h)
@@ -22,26 +22,35 @@ $FreeBSD$
+ULIS_SPEEX=$(wildcard $(CROSS_COMPILE_TARGET)$(LOCALBASE)/include/speex/speex.h)
ifneq (${UI_SPEEX},)
MODSPEEX=codec_speex.so
- LIBSPEEX+=-lspeex -lm
-@@ -56,14 +56,14 @@
+- LIBSPEEX+=-lspeex -lm
++ LIBSPEEX+=-lspeex -lspeexdsp -lm
+ endif
+ ifneq (${UIS_SPEEX},)
+ MODSPEEX=codec_speex.so
+ CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/include/speex
+- LIBSPEEX+=-lspeex -lm
++ LIBSPEEX+=-lspeex -lspeexdsp -lm
endif
ifneq (${ULI_SPEEX},)
MODSPEEX=codec_speex.so
- CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/local/include
- LIBSPEEX=-L$(CROSS_COMPILE_TARGET)/usr/local/lib
+- LIBSPEEX+=-lspeex -lm
+ CFLAGS+=-I$(CROSS_COMPILE_TARGET)$(LOCALBASE)/include
+ LIBSPEEX=-L$(CROSS_COMPILE_TARGET)$(LOCALBASE)/lib
- LIBSPEEX+=-lspeex -lm
++ LIBSPEEX+=-lspeex -lspeexdsp -lm
endif
ifneq (${ULIS_SPEEX},)
MODSPEEX=codec_speex.so
- CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/local/include/speex
- LIBSPEEX=-L$(CROSS_COMPILE_TARGET)/usr/local/lib
+- LIBSPEEX+=-lspeex -lm
+ CFLAGS+=-I$(CROSS_COMPILE_TARGET)$(LOCALBASE)/include/speex
+ LIBSPEEX=-L$(CROSS_COMPILE_TARGET)$(LOCALBASE)/lib
- LIBSPEEX+=-lspeex -lm
++ LIBSPEEX+=-lspeex -lspeexdsp -lm
endif
+ ifneq ($(wildcard ilbc/iLBC_decode.h),)
@@ -78,7 +78,7 @@
LIBLPC10=lpc10/liblpc10.a
diff --git a/net/asterisk12/files/patch-codecs_ilbc b/net/asterisk12/files/patch-codecs_ilbc
new file mode 100644
index 000000000000..167707cd510d
--- /dev/null
+++ b/net/asterisk12/files/patch-codecs_ilbc
@@ -0,0 +1,7194 @@
+diff -druN codecs/ilbc/FrameClassify.c codecs/ilbc/FrameClassify.c
+--- codecs/ilbc/FrameClassify.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/FrameClassify.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,110 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ FrameClassify.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include "iLBC_define.h"
++#include "FrameClassify.h"
++
++/*---------------------------------------------------------------*
++ * Classification of subframes to localize start state
++ *--------------------------------------------------------------*/
++
++int FrameClassify( /* index to the max-energy sub-frame */
++ iLBC_Enc_Inst_t *iLBCenc_inst,
++ /* (i/o) the encoder state structure */
++ float *residual /* (i) lpc residual signal */
++) {
++ float max_ssqEn, fssqEn[NSUB_MAX], bssqEn[NSUB_MAX], *pp;
++ int n, l, max_ssqEn_n;
++ const float ssqEn_win[NSUB_MAX-1]={(float)0.8,(float)0.9,
++ (float)1.0,(float)0.9,(float)0.8};
++ const float sampEn_win[5]={(float)1.0/(float)6.0,
++ (float)2.0/(float)6.0, (float)3.0/(float)6.0,
++ (float)4.0/(float)6.0, (float)5.0/(float)6.0};
++
++ /* init the front and back energies to zero */
++
++ memset(fssqEn, 0, NSUB_MAX*sizeof(float));
++ memset(bssqEn, 0, NSUB_MAX*sizeof(float));
++
++ /* Calculate front of first seqence */
++
++ n=0;
++ pp=residual;
++
++
++ for (l=0; l<5; l++) {
++ fssqEn[n] += sampEn_win[l] * (*pp) * (*pp);
++ pp++;
++ }
++ for (l=5; l<SUBL; l++) {
++ fssqEn[n] += (*pp) * (*pp);
++ pp++;
++ }
++
++ /* Calculate front and back of all middle sequences */
++
++ for (n=1; n<iLBCenc_inst->nsub-1; n++) {
++ pp=residual+n*SUBL;
++ for (l=0; l<5; l++) {
++ fssqEn[n] += sampEn_win[l] * (*pp) * (*pp);
++ bssqEn[n] += (*pp) * (*pp);
++ pp++;
++ }
++ for (l=5; l<SUBL-5; l++) {
++ fssqEn[n] += (*pp) * (*pp);
++ bssqEn[n] += (*pp) * (*pp);
++ pp++;
++ }
++ for (l=SUBL-5; l<SUBL; l++) {
++ fssqEn[n] += (*pp) * (*pp);
++ bssqEn[n] += sampEn_win[SUBL-l-1] * (*pp) * (*pp);
++ pp++;
++ }
++ }
++
++ /* Calculate back of last seqence */
++
++ n=iLBCenc_inst->nsub-1;
++ pp=residual+n*SUBL;
++ for (l=0; l<SUBL-5; l++) {
++ bssqEn[n] += (*pp) * (*pp);
++ pp++;
++ }
++ for (l=SUBL-5; l<SUBL; l++) {
++ bssqEn[n] += sampEn_win[SUBL-l-1] * (*pp) * (*pp);
++ pp++;
++ }
++
++ /* find the index to the weighted 80 sample with
++ most energy */
++
++ if (iLBCenc_inst->mode==20) l=1;
++ else l=0;
++
++ max_ssqEn=(fssqEn[0]+bssqEn[1])*ssqEn_win[l];
++ max_ssqEn_n=1;
++ for (n=2; n<iLBCenc_inst->nsub; n++) {
++
++ l++;
++
++
++ if ((fssqEn[n-1]+bssqEn[n])*ssqEn_win[l] > max_ssqEn) {
++ max_ssqEn=(fssqEn[n-1]+bssqEn[n]) *
++ ssqEn_win[l];
++ max_ssqEn_n=n;
++ }
++ }
++
++ return max_ssqEn_n;
++}
++
++
+diff -druN codecs/ilbc/FrameClassify.h codecs/ilbc/FrameClassify.h
+--- codecs/ilbc/FrameClassify.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/FrameClassify.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,26 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ FrameClassify.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++
++
++#ifndef __iLBC_FRAMECLASSIFY_H
++#define __iLBC_FRAMECLASSIFY_H
++
++int FrameClassify( /* index to the max-energy sub-frame */
++ iLBC_Enc_Inst_t *iLBCenc_inst,
++ /* (i/o) the encoder state structure */
++ float *residual /* (i) lpc residual signal */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/LPCdecode.c codecs/ilbc/LPCdecode.c
+--- codecs/ilbc/LPCdecode.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/LPCdecode.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,152 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ LPC_decode.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <string.h>
++
++#include "helpfun.h"
++#include "lsf.h"
++#include "iLBC_define.h"
++#include "LPCdecode.h"
++#include "constants.h"
++
++/*---------------------------------------------------------------*
++ * interpolation of lsf coefficients for the decoder
++ *--------------------------------------------------------------*/
++
++void LSFinterpolate2a_dec(
++ float *a, /* (o) lpc coefficients for a sub-frame */
++ float *lsf1, /* (i) first lsf coefficient vector */
++
++
++ float *lsf2, /* (i) second lsf coefficient vector */
++ float coef, /* (i) interpolation weight */
++ int length /* (i) length of lsf vectors */
++){
++ float lsftmp[LPC_FILTERORDER];
++
++ interpolate(lsftmp, lsf1, lsf2, coef, length);
++ lsf2a(a, lsftmp);
++}
++
++/*---------------------------------------------------------------*
++ * obtain dequantized lsf coefficients from quantization index
++ *--------------------------------------------------------------*/
++
++void SimplelsfDEQ(
++ float *lsfdeq, /* (o) dequantized lsf coefficients */
++ int *index, /* (i) quantization index */
++ int lpc_n /* (i) number of LPCs */
++){
++ int i, j, pos, cb_pos;
++
++ /* decode first LSF */
++
++ pos = 0;
++ cb_pos = 0;
++ for (i = 0; i < LSF_NSPLIT; i++) {
++ for (j = 0; j < dim_lsfCbTbl[i]; j++) {
++ lsfdeq[pos + j] = lsfCbTbl[cb_pos +
++ (long)(index[i])*dim_lsfCbTbl[i] + j];
++ }
++ pos += dim_lsfCbTbl[i];
++ cb_pos += size_lsfCbTbl[i]*dim_lsfCbTbl[i];
++ }
++
++ if (lpc_n>1) {
++
++ /* decode last LSF */
++
++ pos = 0;
++ cb_pos = 0;
++ for (i = 0; i < LSF_NSPLIT; i++) {
++ for (j = 0; j < dim_lsfCbTbl[i]; j++) {
++ lsfdeq[LPC_FILTERORDER + pos + j] =
++ lsfCbTbl[cb_pos +
++ (long)(index[LSF_NSPLIT + i])*
++ dim_lsfCbTbl[i] + j];
++ }
++ pos += dim_lsfCbTbl[i];
++ cb_pos += size_lsfCbTbl[i]*dim_lsfCbTbl[i];
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++
++
++ * obtain synthesis and weighting filters form lsf coefficients
++ *---------------------------------------------------------------*/
++
++void DecoderInterpolateLSF(
++ float *syntdenum, /* (o) synthesis filter coefficients */
++ float *weightdenum, /* (o) weighting denumerator
++ coefficients */
++ float *lsfdeq, /* (i) dequantized lsf coefficients */
++ int length, /* (i) length of lsf coefficient vector */
++ iLBC_Dec_Inst_t *iLBCdec_inst
++ /* (i) the decoder state structure */
++){
++ int i, pos, lp_length;
++ float lp[LPC_FILTERORDER + 1], *lsfdeq2;
++
++ lsfdeq2 = lsfdeq + length;
++ lp_length = length + 1;
++
++ if (iLBCdec_inst->mode==30) {
++ /* sub-frame 1: Interpolation between old and first */
++
++ LSFinterpolate2a_dec(lp, iLBCdec_inst->lsfdeqold, lsfdeq,
++ lsf_weightTbl_30ms[0], length);
++ memcpy(syntdenum,lp,lp_length*sizeof(float));
++ bwexpand(weightdenum, lp, LPC_CHIRP_WEIGHTDENUM,
++ lp_length);
++
++ /* sub-frames 2 to 6: interpolation between first
++ and last LSF */
++
++ pos = lp_length;
++ for (i = 1; i < 6; i++) {
++ LSFinterpolate2a_dec(lp, lsfdeq, lsfdeq2,
++ lsf_weightTbl_30ms[i], length);
++ memcpy(syntdenum + pos,lp,lp_length*sizeof(float));
++ bwexpand(weightdenum + pos, lp,
++ LPC_CHIRP_WEIGHTDENUM, lp_length);
++ pos += lp_length;
++ }
++ }
++ else {
++ pos = 0;
++ for (i = 0; i < iLBCdec_inst->nsub; i++) {
++ LSFinterpolate2a_dec(lp, iLBCdec_inst->lsfdeqold,
++ lsfdeq, lsf_weightTbl_20ms[i], length);
++ memcpy(syntdenum+pos,lp,lp_length*sizeof(float));
++ bwexpand(weightdenum+pos, lp, LPC_CHIRP_WEIGHTDENUM,
++ lp_length);
++ pos += lp_length;
++ }
++ }
++
++ /* update memory */
++
++
++
++ if (iLBCdec_inst->mode==30)
++ memcpy(iLBCdec_inst->lsfdeqold, lsfdeq2,
++ length*sizeof(float));
++ else
++ memcpy(iLBCdec_inst->lsfdeqold, lsfdeq,
++ length*sizeof(float));
++
++}
++
++
+diff -druN codecs/ilbc/LPCdecode.h codecs/ilbc/LPCdecode.h
+--- codecs/ilbc/LPCdecode.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/LPCdecode.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,44 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ LPC_decode.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_LPC_DECODE_H
++#define __iLBC_LPC_DECODE_H
++
++void LSFinterpolate2a_dec(
++
++
++ float *a, /* (o) lpc coefficients for a sub-frame */
++ float *lsf1, /* (i) first lsf coefficient vector */
++ float *lsf2, /* (i) second lsf coefficient vector */
++ float coef, /* (i) interpolation weight */
++ int length /* (i) length of lsf vectors */
++);
++
++void SimplelsfDEQ(
++ float *lsfdeq, /* (o) dequantized lsf coefficients */
++ int *index, /* (i) quantization index */
++ int lpc_n /* (i) number of LPCs */
++);
++
++void DecoderInterpolateLSF(
++ float *syntdenum, /* (o) synthesis filter coefficients */
++ float *weightdenum, /* (o) weighting denumerator
++ coefficients */
++ float *lsfdeq, /* (i) dequantized lsf coefficients */
++ int length, /* (i) length of lsf coefficient vector */
++ iLBC_Dec_Inst_t *iLBCdec_inst
++ /* (i) the decoder state structure */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/LPCencode.c codecs/ilbc/LPCencode.c
+--- codecs/ilbc/LPCencode.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/LPCencode.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,228 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ LPCencode.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <string.h>
++
++
++
++#include "iLBC_define.h"
++#include "LPCencode.h"
++#include "helpfun.h"
++#include "lsf.h"
++#include "constants.h"
++
++/*----------------------------------------------------------------*
++ * lpc analysis (subrutine to LPCencode)
++ *---------------------------------------------------------------*/
++
++static void SimpleAnalysis(
++ float *lsf, /* (o) lsf coefficients */
++ float *data, /* (i) new data vector */
++ iLBC_Enc_Inst_t *iLBCenc_inst
++ /* (i/o) the encoder state structure */
++){
++ int k, is;
++ float temp[BLOCKL_MAX], lp[LPC_FILTERORDER + 1];
++ float lp2[LPC_FILTERORDER + 1];
++ float r[LPC_FILTERORDER + 1];
++
++ is=LPC_LOOKBACK+BLOCKL_MAX-iLBCenc_inst->blockl;
++ memcpy(iLBCenc_inst->lpc_buffer+is,data,
++ iLBCenc_inst->blockl*sizeof(float));
++
++ /* No lookahead, last window is asymmetric */
++
++ for (k = 0; k < iLBCenc_inst->lpc_n; k++) {
++
++ is = LPC_LOOKBACK;
++
++ if (k < (iLBCenc_inst->lpc_n - 1)) {
++ window(temp, lpc_winTbl,
++ iLBCenc_inst->lpc_buffer, BLOCKL_MAX);
++ } else {
++ window(temp, lpc_asymwinTbl,
++ iLBCenc_inst->lpc_buffer + is, BLOCKL_MAX);
++ }
++
++ autocorr(r, temp, BLOCKL_MAX, LPC_FILTERORDER);
++ window(r, r, lpc_lagwinTbl, LPC_FILTERORDER + 1);
++
++ levdurb(lp, temp, r, LPC_FILTERORDER);
++ bwexpand(lp2, lp, LPC_CHIRP_SYNTDENUM, LPC_FILTERORDER+1);
++
++ a2lsf(lsf + k*LPC_FILTERORDER, lp2);
++ }
++ is=LPC_LOOKBACK+BLOCKL_MAX-iLBCenc_inst->blockl;
++ memmove(iLBCenc_inst->lpc_buffer,
++ iLBCenc_inst->lpc_buffer+LPC_LOOKBACK+BLOCKL_MAX-is,
++ is*sizeof(float));
++}
++
++/*----------------------------------------------------------------*
++
++
++ * lsf interpolator and conversion from lsf to a coefficients
++ * (subrutine to SimpleInterpolateLSF)
++ *---------------------------------------------------------------*/
++
++static void LSFinterpolate2a_enc(
++ float *a, /* (o) lpc coefficients */
++ float *lsf1,/* (i) first set of lsf coefficients */
++ float *lsf2,/* (i) second set of lsf coefficients */
++ float coef, /* (i) weighting coefficient to use between
++ lsf1 and lsf2 */
++ long length /* (i) length of coefficient vectors */
++){
++ float lsftmp[LPC_FILTERORDER];
++
++ interpolate(lsftmp, lsf1, lsf2, coef, length);
++ lsf2a(a, lsftmp);
++}
++
++/*----------------------------------------------------------------*
++ * lsf interpolator (subrutine to LPCencode)
++ *---------------------------------------------------------------*/
++
++static void SimpleInterpolateLSF(
++ float *syntdenum, /* (o) the synthesis filter denominator
++ resulting from the quantized
++ interpolated lsf */
++ float *weightdenum, /* (o) the weighting filter denominator
++ resulting from the unquantized
++ interpolated lsf */
++ float *lsf, /* (i) the unquantized lsf coefficients */
++ float *lsfdeq, /* (i) the dequantized lsf coefficients */
++ float *lsfold, /* (i) the unquantized lsf coefficients of
++ the previous signal frame */
++ float *lsfdeqold, /* (i) the dequantized lsf coefficients of
++ the previous signal frame */
++ int length, /* (i) should equate LPC_FILTERORDER */
++ iLBC_Enc_Inst_t *iLBCenc_inst
++ /* (i/o) the encoder state structure */
++){
++ int i, pos, lp_length;
++ float lp[LPC_FILTERORDER + 1], *lsf2, *lsfdeq2;
++
++ lsf2 = lsf + length;
++ lsfdeq2 = lsfdeq + length;
++ lp_length = length + 1;
++
++ if (iLBCenc_inst->mode==30) {
++ /* sub-frame 1: Interpolation between old and first
++ set of lsf coefficients */
++
++ LSFinterpolate2a_enc(lp, lsfdeqold, lsfdeq,
++ lsf_weightTbl_30ms[0], length);
++ memcpy(syntdenum,lp,lp_length*sizeof(float));
++ LSFinterpolate2a_enc(lp, lsfold, lsf,
++
++
++ lsf_weightTbl_30ms[0], length);
++ bwexpand(weightdenum, lp, LPC_CHIRP_WEIGHTDENUM, lp_length);
++
++ /* sub-frame 2 to 6: Interpolation between first
++ and second set of lsf coefficients */
++
++ pos = lp_length;
++ for (i = 1; i < iLBCenc_inst->nsub; i++) {
++ LSFinterpolate2a_enc(lp, lsfdeq, lsfdeq2,
++ lsf_weightTbl_30ms[i], length);
++ memcpy(syntdenum + pos,lp,lp_length*sizeof(float));
++
++ LSFinterpolate2a_enc(lp, lsf, lsf2,
++ lsf_weightTbl_30ms[i], length);
++ bwexpand(weightdenum + pos, lp,
++ LPC_CHIRP_WEIGHTDENUM, lp_length);
++ pos += lp_length;
++ }
++ }
++ else {
++ pos = 0;
++ for (i = 0; i < iLBCenc_inst->nsub; i++) {
++ LSFinterpolate2a_enc(lp, lsfdeqold, lsfdeq,
++ lsf_weightTbl_20ms[i], length);
++ memcpy(syntdenum+pos,lp,lp_length*sizeof(float));
++ LSFinterpolate2a_enc(lp, lsfold, lsf,
++ lsf_weightTbl_20ms[i], length);
++ bwexpand(weightdenum+pos, lp,
++ LPC_CHIRP_WEIGHTDENUM, lp_length);
++ pos += lp_length;
++ }
++ }
++
++ /* update memory */
++
++ if (iLBCenc_inst->mode==30) {
++ memcpy(lsfold, lsf2, length*sizeof(float));
++ memcpy(lsfdeqold, lsfdeq2, length*sizeof(float));
++ }
++ else {
++ memcpy(lsfold, lsf, length*sizeof(float));
++ memcpy(lsfdeqold, lsfdeq, length*sizeof(float));
++ }
++}
++
++/*----------------------------------------------------------------*
++ * lsf quantizer (subrutine to LPCencode)
++ *---------------------------------------------------------------*/
++
++static void SimplelsfQ(
++ float *lsfdeq, /* (o) dequantized lsf coefficients
++ (dimension FILTERORDER) */
++ int *index, /* (o) quantization index */
++ float *lsf, /* (i) the lsf coefficient vector to be
++
++
++ quantized (dimension FILTERORDER ) */
++ int lpc_n /* (i) number of lsf sets to quantize */
++){
++ /* Quantize first LSF with memoryless split VQ */
++ SplitVQ(lsfdeq, index, lsf, lsfCbTbl, LSF_NSPLIT,
++ dim_lsfCbTbl, size_lsfCbTbl);
++
++ if (lpc_n==2) {
++ /* Quantize second LSF with memoryless split VQ */
++ SplitVQ(lsfdeq + LPC_FILTERORDER, index + LSF_NSPLIT,
++ lsf + LPC_FILTERORDER, lsfCbTbl, LSF_NSPLIT,
++ dim_lsfCbTbl, size_lsfCbTbl);
++ }
++}
++
++/*----------------------------------------------------------------*
++ * lpc encoder
++ *---------------------------------------------------------------*/
++
++void LPCencode(
++ float *syntdenum, /* (i/o) synthesis filter coefficients
++ before/after encoding */
++ float *weightdenum, /* (i/o) weighting denumerator
++ coefficients before/after
++ encoding */
++ int *lsf_index, /* (o) lsf quantization index */
++ float *data, /* (i) lsf coefficients to quantize */
++ iLBC_Enc_Inst_t *iLBCenc_inst
++ /* (i/o) the encoder state structure */
++){
++ float lsf[LPC_FILTERORDER * LPC_N_MAX];
++ float lsfdeq[LPC_FILTERORDER * LPC_N_MAX];
++ int change=0;
++
++ SimpleAnalysis(lsf, data, iLBCenc_inst);
++ SimplelsfQ(lsfdeq, lsf_index, lsf, iLBCenc_inst->lpc_n);
++ change=LSF_check(lsfdeq, LPC_FILTERORDER, iLBCenc_inst->lpc_n);
++ SimpleInterpolateLSF(syntdenum, weightdenum,
++ lsf, lsfdeq, iLBCenc_inst->lsfold,
++ iLBCenc_inst->lsfdeqold, LPC_FILTERORDER, iLBCenc_inst);
++}
++
++
++
+diff -druN codecs/ilbc/LPCencode.h codecs/ilbc/LPCencode.h
+--- codecs/ilbc/LPCencode.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/LPCencode.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,29 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ LPCencode.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_LPCENCOD_H
++#define __iLBC_LPCENCOD_H
++
++void LPCencode(
++ float *syntdenum, /* (i/o) synthesis filter coefficients
++ before/after encoding */
++ float *weightdenum, /* (i/o) weighting denumerator coefficients
++ before/after encoding */
++ int *lsf_index, /* (o) lsf quantization index */
++ float *data, /* (i) lsf coefficients to quantize */
++ iLBC_Enc_Inst_t *iLBCenc_inst
++ /* (i/o) the encoder state structure */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/StateConstructW.c codecs/ilbc/StateConstructW.c
+--- codecs/ilbc/StateConstructW.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/StateConstructW.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,76 @@
++
++/******************************************************************
++
++
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ StateConstructW.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <string.h>
++
++#include "iLBC_define.h"
++#include "StateConstructW.h"
++#include "constants.h"
++#include "filter.h"
++
++/*----------------------------------------------------------------*
++ * decoding of the start state
++ *---------------------------------------------------------------*/
++
++void StateConstructW(
++ int idxForMax, /* (i) 6-bit index for the quantization of
++ max amplitude */
++ int *idxVec, /* (i) vector of quantization indexes */
++ float *syntDenum, /* (i) synthesis filter denumerator */
++ float *out, /* (o) the decoded state vector */
++ int len /* (i) length of a state vector */
++){
++ float maxVal, tmpbuf[LPC_FILTERORDER+2*STATE_LEN], *tmp,
++ numerator[LPC_FILTERORDER+1];
++ float foutbuf[LPC_FILTERORDER+2*STATE_LEN], *fout;
++ int k,tmpi;
++
++ /* decoding of the maximum value */
++
++ maxVal = state_frgqTbl[idxForMax];
++ maxVal = (float)pow(10,maxVal)/(float)4.5;
++
++ /* initialization of buffers and coefficients */
++
++ memset(tmpbuf, 0, LPC_FILTERORDER*sizeof(float));
++ memset(foutbuf, 0, LPC_FILTERORDER*sizeof(float));
++ for (k=0; k<LPC_FILTERORDER; k++) {
++ numerator[k]=syntDenum[LPC_FILTERORDER-k];
++ }
++ numerator[LPC_FILTERORDER]=syntDenum[0];
++ tmp = &tmpbuf[LPC_FILTERORDER];
++ fout = &foutbuf[LPC_FILTERORDER];
++
++ /* decoding of the sample values */
++
++ for (k=0; k<len; k++) {
++ tmpi = len-1-k;
++ /* maxVal = 1/scal */
++
++
++ tmp[k] = maxVal*state_sq3Tbl[idxVec[tmpi]];
++ }
++
++ /* circular convolution with all-pass filter */
++
++ memset(tmp+len, 0, len*sizeof(float));
++ ZeroPoleFilter(tmp, numerator, syntDenum, 2*len,
++ LPC_FILTERORDER, fout);
++ for (k=0;k<len;k++) {
++ out[k] = fout[len-1-k]+fout[2*len-1-k];
++ }
++}
++
++
+diff -druN codecs/ilbc/StateConstructW.h codecs/ilbc/StateConstructW.h
+--- codecs/ilbc/StateConstructW.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/StateConstructW.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,27 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ StateConstructW.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_STATECONSTRUCTW_H
++#define __iLBC_STATECONSTRUCTW_H
++
++void StateConstructW(
++ int idxForMax, /* (i) 6-bit index for the quantization of
++ max amplitude */
++ int *idxVec, /* (i) vector of quantization indexes */
++ float *syntDenum, /* (i) synthesis filter denumerator */
++ float *out, /* (o) the decoded state vector */
++ int len /* (i) length of a state vector */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/StateSearchW.c codecs/ilbc/StateSearchW.c
+--- codecs/ilbc/StateSearchW.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/StateSearchW.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,194 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ StateSearchW.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <string.h>
++
++#include "iLBC_define.h"
++#include "StateSearchW.h"
++#include "constants.h"
++#include "filter.h"
++#include "helpfun.h"
++
++/*----------------------------------------------------------------*
++ * predictive noise shaping encoding of scaled start state
++ * (subrutine for StateSearchW)
++ *---------------------------------------------------------------*/
++
++void AbsQuantW(
++ iLBC_Enc_Inst_t *iLBCenc_inst,
++ /* (i) Encoder instance */
++ float *in, /* (i) vector to encode */
++ float *syntDenum, /* (i) denominator of synthesis filter */
++ float *weightDenum, /* (i) denominator of weighting filter */
++ int *out, /* (o) vector of quantizer indexes */
++ int len, /* (i) length of vector to encode and
++ vector of quantizer indexes */
++ int state_first /* (i) position of start state in the
++ 80 vec */
++){
++ float *syntOut;
++ float syntOutBuf[LPC_FILTERORDER+STATE_SHORT_LEN_30MS];
++ float toQ, xq;
++ int n;
++ int index;
++
++ /* initialization of buffer for filtering */
++
++ memset(syntOutBuf, 0, LPC_FILTERORDER*sizeof(float));
++
++
++
++ /* initialization of pointer for filtering */
++
++ syntOut = &syntOutBuf[LPC_FILTERORDER];
++
++ /* synthesis and weighting filters on input */
++
++ if (state_first) {
++ AllPoleFilter (in, weightDenum, SUBL, LPC_FILTERORDER);
++ } else {
++ AllPoleFilter (in, weightDenum,
++ iLBCenc_inst->state_short_len-SUBL,
++ LPC_FILTERORDER);
++ }
++
++ /* encoding loop */
++
++ for (n=0; n<len; n++) {
++
++ /* time update of filter coefficients */
++
++ if ((state_first)&&(n==SUBL)){
++ syntDenum += (LPC_FILTERORDER+1);
++ weightDenum += (LPC_FILTERORDER+1);
++
++ /* synthesis and weighting filters on input */
++ AllPoleFilter (&in[n], weightDenum, len-n,
++ LPC_FILTERORDER);
++
++ } else if ((state_first==0)&&
++ (n==(iLBCenc_inst->state_short_len-SUBL))) {
++ syntDenum += (LPC_FILTERORDER+1);
++ weightDenum += (LPC_FILTERORDER+1);
++
++ /* synthesis and weighting filters on input */
++ AllPoleFilter (&in[n], weightDenum, len-n,
++ LPC_FILTERORDER);
++
++ }
++
++ /* prediction of synthesized and weighted input */
++
++ syntOut[n] = 0.0;
++ AllPoleFilter (&syntOut[n], weightDenum, 1,
++ LPC_FILTERORDER);
++
++ /* quantization */
++
++ toQ = in[n]-syntOut[n];
++ sort_sq(&xq, &index, toQ, state_sq3Tbl, 8);
++ out[n]=index;
++ syntOut[n] = state_sq3Tbl[out[n]];
++
++ /* update of the prediction filter */
++
++
++
++ AllPoleFilter(&syntOut[n], weightDenum, 1,
++ LPC_FILTERORDER);
++ }
++}
++
++/*----------------------------------------------------------------*
++ * encoding of start state
++ *---------------------------------------------------------------*/
++
++void StateSearchW(
++ iLBC_Enc_Inst_t *iLBCenc_inst,
++ /* (i) Encoder instance */
++ float *residual,/* (i) target residual vector */
++ float *syntDenum, /* (i) lpc synthesis filter */
++ float *weightDenum, /* (i) weighting filter denuminator */
++ int *idxForMax, /* (o) quantizer index for maximum
++ amplitude */
++ int *idxVec, /* (o) vector of quantization indexes */
++ int len, /* (i) length of all vectors */
++ int state_first /* (i) position of start state in the
++ 80 vec */
++){
++ float dtmp, maxVal;
++ float tmpbuf[LPC_FILTERORDER+2*STATE_SHORT_LEN_30MS];
++ float *tmp, numerator[1+LPC_FILTERORDER];
++ float foutbuf[LPC_FILTERORDER+2*STATE_SHORT_LEN_30MS], *fout;
++ int k;
++ float qmax, scal;
++
++ /* initialization of buffers and filter coefficients */
++
++ memset(tmpbuf, 0, LPC_FILTERORDER*sizeof(float));
++ memset(foutbuf, 0, LPC_FILTERORDER*sizeof(float));
++ for (k=0; k<LPC_FILTERORDER; k++) {
++ numerator[k]=syntDenum[LPC_FILTERORDER-k];
++ }
++ numerator[LPC_FILTERORDER]=syntDenum[0];
++ tmp = &tmpbuf[LPC_FILTERORDER];
++ fout = &foutbuf[LPC_FILTERORDER];
++
++ /* circular convolution with the all-pass filter */
++
++ memcpy(tmp, residual, len*sizeof(float));
++ memset(tmp+len, 0, len*sizeof(float));
++ ZeroPoleFilter(tmp, numerator, syntDenum, 2*len,
++ LPC_FILTERORDER, fout);
++ for (k=0; k<len; k++) {
++ fout[k] += fout[k+len];
++ }
++
++ /* identification of the maximum amplitude value */
++
++ maxVal = fout[0];
++
++
++ for (k=1; k<len; k++) {
++
++ if (fout[k]*fout[k] > maxVal*maxVal){
++ maxVal = fout[k];
++ }
++ }
++ maxVal=(float)fabs(maxVal);
++
++ /* encoding of the maximum amplitude value */
++
++ if (maxVal < 10.0) {
++ maxVal = 10.0;
++ }
++ maxVal = (float)log10(maxVal);
++ sort_sq(&dtmp, idxForMax, maxVal, state_frgqTbl, 64);
++
++ /* decoding of the maximum amplitude representation value,
++ and corresponding scaling of start state */
++
++ maxVal=state_frgqTbl[*idxForMax];
++ qmax = (float)pow(10,maxVal);
++ scal = (float)(4.5)/qmax;
++ for (k=0; k<len; k++){
++ fout[k] *= scal;
++ }
++
++ /* predictive noise shaping encoding of scaled start state */
++
++ AbsQuantW(iLBCenc_inst, fout,syntDenum,
++ weightDenum,idxVec, len, state_first);
++}
++
++
+diff -druN codecs/ilbc/StateSearchW.h codecs/ilbc/StateSearchW.h
+--- codecs/ilbc/StateSearchW.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/StateSearchW.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,48 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ StateSearchW.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_STATESEARCHW_H
++#define __iLBC_STATESEARCHW_H
++
++void AbsQuantW(
++ iLBC_Enc_Inst_t *iLBCenc_inst,
++ /* (i) Encoder instance */
++ float *in, /* (i) vector to encode */
++ float *syntDenum, /* (i) denominator of synthesis filter */
++ float *weightDenum, /* (i) denominator of weighting filter */
++ int *out, /* (o) vector of quantizer indexes */
++ int len, /* (i) length of vector to encode and
++ vector of quantizer indexes */
++ int state_first /* (i) position of start state in the
++ 80 vec */
++);
++
++void StateSearchW(
++ iLBC_Enc_Inst_t *iLBCenc_inst,
++ /* (i) Encoder instance */
++ float *residual,/* (i) target residual vector */
++ float *syntDenum, /* (i) lpc synthesis filter */
++ float *weightDenum, /* (i) weighting filter denuminator */
++ int *idxForMax, /* (o) quantizer index for maximum
++ amplitude */
++ int *idxVec, /* (o) vector of quantization indexes */
++ int len, /* (i) length of all vectors */
++ int state_first /* (i) position of start state in the
++
++
++ 80 vec */
++);
++
++
++#endif
++
++
+diff -druN codecs/ilbc/anaFilter.c codecs/ilbc/anaFilter.c
+--- codecs/ilbc/anaFilter.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/anaFilter.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,71 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ anaFilter.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <string.h>
++#include "anaFilter.h"
++#include "iLBC_define.h"
++
++/*----------------------------------------------------------------*
++ * LP analysis filter.
++
++
++ *---------------------------------------------------------------*/
++
++void anaFilter(
++ float *In, /* (i) Signal to be filtered */
++ float *a, /* (i) LP parameters */
++ int len,/* (i) Length of signal */
++ float *Out, /* (o) Filtered signal */
++ float *mem /* (i/o) Filter state */
++){
++ int i, j;
++ float *po, *pi, *pm, *pa;
++
++ po = Out;
++
++ /* Filter first part using memory from past */
++
++ for (i=0; i<LPC_FILTERORDER; i++) {
++ pi = &In[i];
++ pm = &mem[LPC_FILTERORDER-1];
++ pa = a;
++ *po=0.0;
++ for (j=0; j<=i; j++) {
++ *po+=(*pa++)*(*pi--);
++ }
++ for (j=i+1; j<LPC_FILTERORDER+1; j++) {
++
++ *po+=(*pa++)*(*pm--);
++ }
++ po++;
++ }
++
++ /* Filter last part where the state is entierly
++ in the input vector */
++
++ for (i=LPC_FILTERORDER; i<len; i++) {
++ pi = &In[i];
++ pa = a;
++ *po=0.0;
++ for (j=0; j<LPC_FILTERORDER+1; j++) {
++ *po+=(*pa++)*(*pi--);
++ }
++ po++;
++ }
++
++ /* Update state vector */
++
++ memcpy(mem, &In[len-LPC_FILTERORDER],
++ LPC_FILTERORDER*sizeof(float));
++}
++
++
+diff -druN codecs/ilbc/anaFilter.h codecs/ilbc/anaFilter.h
+--- codecs/ilbc/anaFilter.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/anaFilter.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,26 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ anaFilter.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_ANAFILTER_H
++#define __iLBC_ANAFILTER_H
++
++void anaFilter(
++ float *In, /* (i) Signal to be filtered */
++ float *a, /* (i) LP parameters */
++ int len,/* (i) Length of signal */
++ float *Out, /* (o) Filtered signal */
++ float *mem /* (i/o) Filter state */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/constants.c codecs/ilbc/constants.c
+--- codecs/ilbc/constants.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/constants.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,729 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ constants.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include "iLBC_define.h"
++
++/* ULP bit allocation */
++
++ /* 20 ms frame */
++
++const iLBC_ULP_Inst_t ULP_20msTbl = {
++ /* LSF */
++ { {6,0,0,0,0}, {7,0,0,0,0}, {7,0,0,0,0},
++ {0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}},
++ /* Start state location, gain and samples */
++ {2,0,0,0,0},
++ {1,0,0,0,0},
++ {6,0,0,0,0},
++ {0,1,2,0,0},
++ /* extra CB index and extra CB gain */
++ {{6,0,1,0,0}, {0,0,7,0,0}, {0,0,7,0,0}},
++ {{2,0,3,0,0}, {1,1,2,0,0}, {0,0,3,0,0}},
++ /* CB index and CB gain */
++ { {{7,0,1,0,0}, {0,0,7,0,0}, {0,0,7,0,0}},
++ {{0,0,8,0,0}, {0,0,8,0,0}, {0,0,8,0,0}},
++ {{0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}},
++ {{0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}}},
++ { {{1,2,2,0,0}, {1,1,2,0,0}, {0,0,3,0,0}},
++ {{1,1,3,0,0}, {0,2,2,0,0}, {0,0,3,0,0}},
++ {{0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}},
++ {{0,0,0,0,0}, {0,0,0,0,0}, {0,0,0,0,0}}}
++};
++
++ /* 30 ms frame */
++
++const iLBC_ULP_Inst_t ULP_30msTbl = {
++ /* LSF */
++ { {6,0,0,0,0}, {7,0,0,0,0}, {7,0,0,0,0},
++
++
++ {6,0,0,0,0}, {7,0,0,0,0}, {7,0,0,0,0}},
++ /* Start state location, gain and samples */
++ {3,0,0,0,0},
++ {1,0,0,0,0},
++ {6,0,0,0,0},
++ {0,1,2,0,0},
++ /* extra CB index and extra CB gain */
++ {{4,2,1,0,0}, {0,0,7,0,0}, {0,0,7,0,0}},
++ {{1,1,3,0,0}, {1,1,2,0,0}, {0,0,3,0,0}},
++ /* CB index and CB gain */
++ { {{6,1,1,0,0}, {0,0,7,0,0}, {0,0,7,0,0}},
++ {{0,7,1,0,0}, {0,0,8,0,0}, {0,0,8,0,0}},
++ {{0,7,1,0,0}, {0,0,8,0,0}, {0,0,8,0,0}},
++ {{0,7,1,0,0}, {0,0,8,0,0}, {0,0,8,0,0}}},
++ { {{1,2,2,0,0}, {1,2,1,0,0}, {0,0,3,0,0}},
++ {{0,2,3,0,0}, {0,2,2,0,0}, {0,0,3,0,0}},
++ {{0,1,4,0,0}, {0,1,3,0,0}, {0,0,3,0,0}},
++ {{0,1,4,0,0}, {0,1,3,0,0}, {0,0,3,0,0}}}
++};
++
++/* HP Filters */
++
++float hpi_zero_coefsTbl[3] = {
++ (float)0.92727436, (float)-1.8544941, (float)0.92727436
++};
++float hpi_pole_coefsTbl[3] = {
++ (float)1.0, (float)-1.9059465, (float)0.9114024
++};
++float hpo_zero_coefsTbl[3] = {
++ (float)0.93980581, (float)-1.8795834, (float)0.93980581
++};
++float hpo_pole_coefsTbl[3] = {
++ (float)1.0, (float)-1.9330735, (float)0.93589199
++};
++
++/* LP Filter */
++
++float lpFilt_coefsTbl[FILTERORDER_DS]={
++ (float)-0.066650, (float)0.125000, (float)0.316650,
++ (float)0.414063, (float)0.316650,
++ (float)0.125000, (float)-0.066650
++};
++
++/* State quantization tables */
++
++float state_sq3Tbl[8] = {
++ (float)-3.719849, (float)-2.177490, (float)-1.130005,
++ (float)-0.309692, (float)0.444214, (float)1.329712,
++ (float)2.436279, (float)3.983887
++};
++
++float state_frgqTbl[64] = {
++ (float)1.000085, (float)1.071695, (float)1.140395,
++ (float)1.206868, (float)1.277188, (float)1.351503,
++
++
++ (float)1.429380, (float)1.500727, (float)1.569049,
++ (float)1.639599, (float)1.707071, (float)1.781531,
++ (float)1.840799, (float)1.901550, (float)1.956695,
++ (float)2.006750, (float)2.055474, (float)2.102787,
++ (float)2.142819, (float)2.183592, (float)2.217962,
++ (float)2.257177, (float)2.295739, (float)2.332967,
++ (float)2.369248, (float)2.402792, (float)2.435080,
++ (float)2.468598, (float)2.503394, (float)2.539284,
++ (float)2.572944, (float)2.605036, (float)2.636331,
++ (float)2.668939, (float)2.698780, (float)2.729101,
++ (float)2.759786, (float)2.789834, (float)2.818679,
++ (float)2.848074, (float)2.877470, (float)2.906899,
++ (float)2.936655, (float)2.967804, (float)3.000115,
++ (float)3.033367, (float)3.066355, (float)3.104231,
++ (float)3.141499, (float)3.183012, (float)3.222952,
++ (float)3.265433, (float)3.308441, (float)3.350823,
++ (float)3.395275, (float)3.442793, (float)3.490801,
++ (float)3.542514, (float)3.604064, (float)3.666050,
++ (float)3.740994, (float)3.830749, (float)3.938770,
++ (float)4.101764
++};
++
++/* CB tables */
++
++int search_rangeTbl[5][CB_NSTAGES]={{58,58,58}, {108,44,44},
++ {108,108,108}, {108,108,108}, {108,108,108}};
++int stMemLTbl=85;
++int memLfTbl[NASUB_MAX]={147,147,147,147};
++
++/* expansion filter(s) */
++
++float cbfiltersTbl[CB_FILTERLEN]={
++ (float)-0.034180, (float)0.108887, (float)-0.184326,
++ (float)0.806152, (float)0.713379, (float)-0.144043,
++ (float)0.083740, (float)-0.033691
++};
++
++/* Gain Quantization */
++
++float gain_sq3Tbl[8]={
++ (float)-1.000000, (float)-0.659973, (float)-0.330017,
++ (float)0.000000, (float)0.250000, (float)0.500000,
++ (float)0.750000, (float)1.00000};
++
++float gain_sq4Tbl[16]={
++ (float)-1.049988, (float)-0.900024, (float)-0.750000,
++ (float)-0.599976, (float)-0.450012, (float)-0.299988,
++ (float)-0.150024, (float)0.000000, (float)0.150024,
++ (float)0.299988, (float)0.450012, (float)0.599976,
++ (float)0.750000, (float)0.900024, (float)1.049988,
++ (float)1.200012};
++
++float gain_sq5Tbl[32]={
++ (float)0.037476, (float)0.075012, (float)0.112488,
++
++
++ (float)0.150024, (float)0.187500, (float)0.224976,
++ (float)0.262512, (float)0.299988, (float)0.337524,
++ (float)0.375000, (float)0.412476, (float)0.450012,
++ (float)0.487488, (float)0.525024, (float)0.562500,
++ (float)0.599976, (float)0.637512, (float)0.674988,
++ (float)0.712524, (float)0.750000, (float)0.787476,
++ (float)0.825012, (float)0.862488, (float)0.900024,
++ (float)0.937500, (float)0.974976, (float)1.012512,
++ (float)1.049988, (float)1.087524, (float)1.125000,
++ (float)1.162476, (float)1.200012};
++
++/* Enhancer - Upsamling a factor 4 (ENH_UPS0 = 4) */
++float polyphaserTbl[ENH_UPS0*(2*ENH_FL0+1)]={
++ (float)0.000000, (float)0.000000, (float)0.000000,
++(float)1.000000,
++ (float)0.000000, (float)0.000000, (float)0.000000,
++ (float)0.015625, (float)-0.076904, (float)0.288330,
++(float)0.862061,
++ (float)-0.106445, (float)0.018799, (float)-0.015625,
++ (float)0.023682, (float)-0.124268, (float)0.601563,
++(float)0.601563,
++ (float)-0.124268, (float)0.023682, (float)-0.023682,
++ (float)0.018799, (float)-0.106445, (float)0.862061,
++(float)0.288330,
++ (float)-0.076904, (float)0.015625, (float)-0.018799};
++
++float enh_plocsTbl[ENH_NBLOCKS_TOT] = {(float)40.0, (float)120.0,
++ (float)200.0, (float)280.0, (float)360.0,
++ (float)440.0, (float)520.0, (float)600.0};
++
++/* LPC analysis and quantization */
++
++int dim_lsfCbTbl[LSF_NSPLIT] = {3, 3, 4};
++int size_lsfCbTbl[LSF_NSPLIT] = {64,128,128};
++
++
++float lsfmeanTbl[LPC_FILTERORDER] = {
++ (float)0.281738, (float)0.445801, (float)0.663330,
++ (float)0.962524, (float)1.251831, (float)1.533081,
++ (float)1.850586, (float)2.137817, (float)2.481445,
++ (float)2.777344};
++
++float lsf_weightTbl_30ms[6] = {(float)(1.0/2.0), (float)1.0,
++(float)(2.0/3.0),
++ (float)(1.0/3.0), (float)0.0, (float)0.0};
++
++float lsf_weightTbl_20ms[4] = {(float)(3.0/4.0), (float)(2.0/4.0),
++ (float)(1.0/4.0), (float)(0.0)};
++
++/* Hanning LPC window */
++float lpc_winTbl[BLOCKL_MAX]={
++ (float)0.000183, (float)0.000671, (float)0.001526,
++ (float)0.002716, (float)0.004242, (float)0.006104,
++ (float)0.008301, (float)0.010834, (float)0.013702,
++
++
++ (float)0.016907, (float)0.020416, (float)0.024261,
++ (float)0.028442, (float)0.032928, (float)0.037750,
++ (float)0.042877, (float)0.048309, (float)0.054047,
++ (float)0.060089, (float)0.066437, (float)0.073090,
++ (float)0.080017, (float)0.087219, (float)0.094727,
++ (float)0.102509, (float)0.110535, (float)0.118835,
++ (float)0.127411, (float)0.136230, (float)0.145294,
++ (float)0.154602, (float)0.164154, (float)0.173920,
++ (float)0.183899, (float)0.194122, (float)0.204529,
++ (float)0.215149, (float)0.225952, (float)0.236938,
++ (float)0.248108, (float)0.259460, (float)0.270966,
++ (float)0.282654, (float)0.294464, (float)0.306396,
++ (float)0.318481, (float)0.330688, (float)0.343018,
++ (float)0.355438, (float)0.367981, (float)0.380585,
++ (float)0.393280, (float)0.406067, (float)0.418884,
++ (float)0.431763, (float)0.444702, (float)0.457672,
++ (float)0.470673, (float)0.483704, (float)0.496735,
++ (float)0.509766, (float)0.522797, (float)0.535828,
++ (float)0.548798, (float)0.561768, (float)0.574677,
++ (float)0.587524, (float)0.600342, (float)0.613068,
++ (float)0.625732, (float)0.638306, (float)0.650787,
++ (float)0.663147, (float)0.675415, (float)0.687561,
++ (float)0.699585, (float)0.711487, (float)0.723206,
++ (float)0.734802, (float)0.746216, (float)0.757477,
++ (float)0.768585, (float)0.779480, (float)0.790192,
++ (float)0.800720, (float)0.811005, (float)0.821106,
++ (float)0.830994, (float)0.840668, (float)0.850067,
++ (float)0.859253, (float)0.868225, (float)0.876892,
++ (float)0.885345, (float)0.893524, (float)0.901428,
++ (float)0.909058, (float)0.916412, (float)0.923492,
++ (float)0.930267, (float)0.936768, (float)0.942963,
++ (float)0.948853, (float)0.954437, (float)0.959717,
++ (float)0.964691, (float)0.969360, (float)0.973694,
++ (float)0.977692, (float)0.981384, (float)0.984741,
++ (float)0.987762, (float)0.990479, (float)0.992828,
++ (float)0.994873, (float)0.996552, (float)0.997925,
++ (float)0.998932, (float)0.999603, (float)0.999969,
++ (float)0.999969, (float)0.999603, (float)0.998932,
++ (float)0.997925, (float)0.996552, (float)0.994873,
++ (float)0.992828, (float)0.990479, (float)0.987762,
++ (float)0.984741, (float)0.981384, (float)0.977692,
++ (float)0.973694, (float)0.969360, (float)0.964691,
++ (float)0.959717, (float)0.954437, (float)0.948853,
++ (float)0.942963, (float)0.936768, (float)0.930267,
++ (float)0.923492, (float)0.916412, (float)0.909058,
++ (float)0.901428, (float)0.893524, (float)0.885345,
++ (float)0.876892, (float)0.868225, (float)0.859253,
++ (float)0.850067, (float)0.840668, (float)0.830994,
++ (float)0.821106, (float)0.811005, (float)0.800720,
++ (float)0.790192, (float)0.779480, (float)0.768585,
++ (float)0.757477, (float)0.746216, (float)0.734802,
++ (float)0.723206, (float)0.711487, (float)0.699585,
++ (float)0.687561, (float)0.675415, (float)0.663147,
++ (float)0.650787, (float)0.638306, (float)0.625732,
++
++
++ (float)0.613068, (float)0.600342, (float)0.587524,
++ (float)0.574677, (float)0.561768, (float)0.548798,
++ (float)0.535828, (float)0.522797, (float)0.509766,
++ (float)0.496735, (float)0.483704, (float)0.470673,
++ (float)0.457672, (float)0.444702, (float)0.431763,
++ (float)0.418884, (float)0.406067, (float)0.393280,
++ (float)0.380585, (float)0.367981, (float)0.355438,
++ (float)0.343018, (float)0.330688, (float)0.318481,
++ (float)0.306396, (float)0.294464, (float)0.282654,
++ (float)0.270966, (float)0.259460, (float)0.248108,
++ (float)0.236938, (float)0.225952, (float)0.215149,
++ (float)0.204529, (float)0.194122, (float)0.183899,
++ (float)0.173920, (float)0.164154, (float)0.154602,
++ (float)0.145294, (float)0.136230, (float)0.127411,
++ (float)0.118835, (float)0.110535, (float)0.102509,
++ (float)0.094727, (float)0.087219, (float)0.080017,
++ (float)0.073090, (float)0.066437, (float)0.060089,
++ (float)0.054047, (float)0.048309, (float)0.042877,
++ (float)0.037750, (float)0.032928, (float)0.028442,
++ (float)0.024261, (float)0.020416, (float)0.016907,
++ (float)0.013702, (float)0.010834, (float)0.008301,
++ (float)0.006104, (float)0.004242, (float)0.002716,
++ (float)0.001526, (float)0.000671, (float)0.000183
++};
++
++/* Asymmetric LPC window */
++float lpc_asymwinTbl[BLOCKL_MAX]={
++ (float)0.000061, (float)0.000214, (float)0.000458,
++ (float)0.000824, (float)0.001282, (float)0.001831,
++ (float)0.002472, (float)0.003235, (float)0.004120,
++ (float)0.005066, (float)0.006134, (float)0.007294,
++ (float)0.008545, (float)0.009918, (float)0.011383,
++ (float)0.012939, (float)0.014587, (float)0.016357,
++ (float)0.018219, (float)0.020172, (float)0.022217,
++ (float)0.024353, (float)0.026611, (float)0.028961,
++ (float)0.031372, (float)0.033905, (float)0.036530,
++ (float)0.039276, (float)0.042084, (float)0.044983,
++ (float)0.047974, (float)0.051086, (float)0.054260,
++ (float)0.057526, (float)0.060883, (float)0.064331,
++ (float)0.067871, (float)0.071503, (float)0.075226,
++ (float)0.079010, (float)0.082916, (float)0.086884,
++ (float)0.090942, (float)0.095062, (float)0.099304,
++ (float)0.103607, (float)0.107971, (float)0.112427,
++ (float)0.116974, (float)0.121582, (float)0.126282,
++ (float)0.131073, (float)0.135895, (float)0.140839,
++ (float)0.145813, (float)0.150879, (float)0.156006,
++ (float)0.161224, (float)0.166504, (float)0.171844,
++ (float)0.177246, (float)0.182709, (float)0.188263,
++ (float)0.193848, (float)0.199524, (float)0.205231,
++ (float)0.211029, (float)0.216858, (float)0.222778,
++ (float)0.228729, (float)0.234741, (float)0.240814,
++ (float)0.246918, (float)0.253082, (float)0.259308,
++ (float)0.265564, (float)0.271881, (float)0.278259,
++ (float)0.284668, (float)0.291107, (float)0.297607,
++
++
++ (float)0.304138, (float)0.310730, (float)0.317322,
++ (float)0.323975, (float)0.330658, (float)0.337372,
++ (float)0.344147, (float)0.350922, (float)0.357727,
++ (float)0.364594, (float)0.371460, (float)0.378357,
++ (float)0.385284, (float)0.392212, (float)0.399170,
++ (float)0.406158, (float)0.413177, (float)0.420197,
++ (float)0.427246, (float)0.434296, (float)0.441376,
++ (float)0.448456, (float)0.455536, (float)0.462646,
++ (float)0.469757, (float)0.476868, (float)0.483978,
++ (float)0.491089, (float)0.498230, (float)0.505341,
++ (float)0.512451, (float)0.519592, (float)0.526703,
++ (float)0.533813, (float)0.540924, (float)0.548004,
++ (float)0.555084, (float)0.562164, (float)0.569244,
++ (float)0.576294, (float)0.583313, (float)0.590332,
++ (float)0.597321, (float)0.604309, (float)0.611267,
++ (float)0.618195, (float)0.625092, (float)0.631989,
++ (float)0.638855, (float)0.645660, (float)0.652466,
++ (float)0.659241, (float)0.665985, (float)0.672668,
++ (float)0.679352, (float)0.685974, (float)0.692566,
++ (float)0.699127, (float)0.705658, (float)0.712128,
++ (float)0.718536, (float)0.724945, (float)0.731262,
++ (float)0.737549, (float)0.743805, (float)0.750000,
++ (float)0.756134, (float)0.762238, (float)0.768280,
++ (float)0.774261, (float)0.780182, (float)0.786072,
++ (float)0.791870, (float)0.797638, (float)0.803314,
++ (float)0.808960, (float)0.814514, (float)0.820038,
++ (float)0.825470, (float)0.830841, (float)0.836151,
++ (float)0.841400, (float)0.846558, (float)0.851654,
++ (float)0.856689, (float)0.861633, (float)0.866516,
++ (float)0.871338, (float)0.876068, (float)0.880737,
++ (float)0.885315, (float)0.889801, (float)0.894226,
++ (float)0.898560, (float)0.902832, (float)0.907013,
++ (float)0.911102, (float)0.915100, (float)0.919037,
++ (float)0.922882, (float)0.926636, (float)0.930328,
++ (float)0.933899, (float)0.937408, (float)0.940796,
++ (float)0.944122, (float)0.947357, (float)0.950470,
++ (float)0.953522, (float)0.956482, (float)0.959351,
++ (float)0.962097, (float)0.964783, (float)0.967377,
++ (float)0.969849, (float)0.972229, (float)0.974518,
++ (float)0.976715, (float)0.978821, (float)0.980835,
++ (float)0.982727, (float)0.984528, (float)0.986237,
++ (float)0.987854, (float)0.989380, (float)0.990784,
++ (float)0.992096, (float)0.993317, (float)0.994415,
++ (float)0.995422, (float)0.996338, (float)0.997162,
++ (float)0.997864, (float)0.998474, (float)0.998962,
++ (float)0.999390, (float)0.999695, (float)0.999878,
++ (float)0.999969, (float)0.999969, (float)0.996918,
++ (float)0.987701, (float)0.972382, (float)0.951050,
++ (float)0.923889, (float)0.891022, (float)0.852631,
++ (float)0.809021, (float)0.760406, (float)0.707092,
++ (float)0.649445, (float)0.587799, (float)0.522491,
++ (float)0.453979, (float)0.382690, (float)0.309021,
++ (float)0.233459, (float)0.156433, (float)0.078461
++};
++
++
++
++/* Lag window for LPC */
++float lpc_lagwinTbl[LPC_FILTERORDER + 1]={
++ (float)1.000100, (float)0.998890, (float)0.995569,
++ (float)0.990057, (float)0.982392,
++ (float)0.972623, (float)0.960816, (float)0.947047,
++ (float)0.931405, (float)0.913989, (float)0.894909};
++
++/* LSF quantization*/
++float lsfCbTbl[64 * 3 + 128 * 3 + 128 * 4] = {
++(float)0.155396, (float)0.273193, (float)0.451172,
++(float)0.390503, (float)0.648071, (float)1.002075,
++(float)0.440186, (float)0.692261, (float)0.955688,
++(float)0.343628, (float)0.642334, (float)1.071533,
++(float)0.318359, (float)0.491577, (float)0.670532,
++(float)0.193115, (float)0.375488, (float)0.725708,
++(float)0.364136, (float)0.510376, (float)0.658691,
++(float)0.297485, (float)0.527588, (float)0.842529,
++(float)0.227173, (float)0.365967, (float)0.563110,
++(float)0.244995, (float)0.396729, (float)0.636475,
++(float)0.169434, (float)0.300171, (float)0.520264,
++(float)0.312866, (float)0.464478, (float)0.643188,
++(float)0.248535, (float)0.429932, (float)0.626099,
++(float)0.236206, (float)0.491333, (float)0.817139,
++(float)0.334961, (float)0.625122, (float)0.895752,
++(float)0.343018, (float)0.518555, (float)0.698608,
++(float)0.372803, (float)0.659790, (float)0.945435,
++(float)0.176880, (float)0.316528, (float)0.581421,
++(float)0.416382, (float)0.625977, (float)0.805176,
++(float)0.303223, (float)0.568726, (float)0.915039,
++(float)0.203613, (float)0.351440, (float)0.588135,
++(float)0.221191, (float)0.375000, (float)0.614746,
++(float)0.199951, (float)0.323364, (float)0.476074,
++(float)0.300781, (float)0.433350, (float)0.566895,
++(float)0.226196, (float)0.354004, (float)0.507568,
++(float)0.300049, (float)0.508179, (float)0.711670,
++(float)0.312012, (float)0.492676, (float)0.763428,
++(float)0.329956, (float)0.541016, (float)0.795776,
++(float)0.373779, (float)0.604614, (float)0.928833,
++(float)0.210571, (float)0.452026, (float)0.755249,
++(float)0.271118, (float)0.473267, (float)0.662476,
++(float)0.285522, (float)0.436890, (float)0.634399,
++(float)0.246704, (float)0.565552, (float)0.859009,
++(float)0.270508, (float)0.406250, (float)0.553589,
++(float)0.361450, (float)0.578491, (float)0.813843,
++(float)0.342651, (float)0.482788, (float)0.622437,
++(float)0.340332, (float)0.549438, (float)0.743164,
++(float)0.200439, (float)0.336304, (float)0.540894,
++(float)0.407837, (float)0.644775, (float)0.895142,
++(float)0.294678, (float)0.454834, (float)0.699097,
++(float)0.193115, (float)0.344482, (float)0.643188,
++(float)0.275757, (float)0.420776, (float)0.598755,
++(float)0.380493, (float)0.608643, (float)0.861084,
++(float)0.222778, (float)0.426147, (float)0.676514,
++
++
++(float)0.407471, (float)0.700195, (float)1.053101,
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++(float)2.120117, (float)2.443359, (float)2.733887, (float)2.941406,
++(float)1.506348, (float)1.766968, (float)2.400513, (float)2.851807,
++(float)1.664551, (float)1.981079, (float)2.375732, (float)2.774414,
++(float)1.720703, (float)1.978882, (float)2.391479, (float)2.640991,
++(float)1.483398, (float)1.814819, (float)2.434448, (float)2.722290,
++(float)1.769043, (float)2.136597, (float)2.563721, (float)2.774414,
++(float)1.810791, (float)2.049316, (float)2.373901, (float)2.613647,
++(float)1.788330, (float)2.005981, (float)2.359131, (float)2.723145,
++(float)1.785156, (float)1.993164, (float)2.399780, (float)2.832520,
++(float)1.695313, (float)2.022949, (float)2.522583, (float)2.745117,
++(float)1.584106, (float)1.965576, (float)2.299927, (float)2.715576,
++(float)1.894897, (float)2.249878, (float)2.655884, (float)2.897705,
++(float)1.720581, (float)1.995728, (float)2.299438, (float)2.557007,
++(float)1.619385, (float)2.173950, (float)2.574219, (float)2.787964,
++(float)1.883179, (float)2.220459, (float)2.474365, (float)2.825073,
++(float)1.447632, (float)2.045044, (float)2.555542, (float)2.744873,
++(float)1.502686, (float)2.156616, (float)2.653320, (float)2.846558,
++(float)1.711548, (float)1.944092, (float)2.282959, (float)2.685791,
++(float)1.499756, (float)1.867554, (float)2.341064, (float)2.578857,
++(float)1.916870, (float)2.135132, (float)2.568237, (float)2.826050,
++(float)1.498047, (float)1.711182, (float)2.223267, (float)2.755127,
++
++
++(float)1.808716, (float)1.997559, (float)2.256470, (float)2.758545,
++(float)2.088501, (float)2.402710, (float)2.667358, (float)2.890259,
++(float)1.545044, (float)1.819214, (float)2.324097, (float)2.692993,
++(float)1.796021, (float)2.012573, (float)2.505737, (float)2.784912,
++(float)1.786499, (float)2.041748, (float)2.290405, (float)2.650757,
++(float)1.938232, (float)2.264404, (float)2.529053, (float)2.796143
++};
++
++
+diff -druN codecs/ilbc/constants.h codecs/ilbc/constants.h
+--- codecs/ilbc/constants.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/constants.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,74 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ constants.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++
++
++******************************************************************/
++
++#ifndef __iLBC_CONSTANTS_H
++#define __iLBC_CONSTANTS_H
++
++#include "iLBC_define.h"
++
++
++/* ULP bit allocation */
++
++extern const iLBC_ULP_Inst_t ULP_20msTbl;
++extern const iLBC_ULP_Inst_t ULP_30msTbl;
++
++/* high pass filters */
++
++extern float hpi_zero_coefsTbl[];
++extern float hpi_pole_coefsTbl[];
++extern float hpo_zero_coefsTbl[];
++extern float hpo_pole_coefsTbl[];
++
++/* low pass filters */
++extern float lpFilt_coefsTbl[];
++
++/* LPC analysis and quantization */
++
++extern float lpc_winTbl[];
++extern float lpc_asymwinTbl[];
++extern float lpc_lagwinTbl[];
++extern float lsfCbTbl[];
++extern float lsfmeanTbl[];
++extern int dim_lsfCbTbl[];
++extern int size_lsfCbTbl[];
++extern float lsf_weightTbl_30ms[];
++extern float lsf_weightTbl_20ms[];
++
++/* state quantization tables */
++
++extern float state_sq3Tbl[];
++extern float state_frgqTbl[];
++
++/* gain quantization tables */
++
++extern float gain_sq3Tbl[];
++extern float gain_sq4Tbl[];
++extern float gain_sq5Tbl[];
++
++/* adaptive codebook definitions */
++
++extern int search_rangeTbl[5][CB_NSTAGES];
++extern int memLfTbl[];
++extern int stMemLTbl;
++extern float cbfiltersTbl[CB_FILTERLEN];
++
++
++
++/* enhancer definitions */
++
++extern float polyphaserTbl[];
++extern float enh_plocsTbl[];
++
++#endif
++
+diff -druN codecs/ilbc/createCB.c codecs/ilbc/createCB.c
+--- codecs/ilbc/createCB.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/createCB.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,216 @@
++
++
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ createCB.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include "iLBC_define.h"
++#include "createCB.h"
++#include "constants.h"
++#include <string.h>
++#include <math.h>
++
++/*----------------------------------------------------------------*
++ * Construct an additional codebook vector by filtering the
++ * initial codebook buffer. This vector is then used to expand
++ * the codebook with an additional section.
++ *---------------------------------------------------------------*/
++
++void filteredCBvecs(
++ float *cbvectors, /* (o) Codebook vectors for the
++ higher section */
++ float *mem, /* (i) Buffer to create codebook
++ vector from */
++ int lMem /* (i) Length of buffer */
++){
++ int j, k;
++ float *pp, *pp1;
++ float tempbuff2[CB_MEML+CB_FILTERLEN];
++ float *pos;
++
++ memset(tempbuff2, 0, (CB_HALFFILTERLEN-1)*sizeof(float));
++ memcpy(&tempbuff2[CB_HALFFILTERLEN-1], mem, lMem*sizeof(float));
++ memset(&tempbuff2[lMem+CB_HALFFILTERLEN-1], 0,
++ (CB_HALFFILTERLEN+1)*sizeof(float));
++
++ /* Create codebook vector for higher section by filtering */
++
++ /* do filtering */
++ pos=cbvectors;
++ memset(pos, 0, lMem*sizeof(float));
++ for (k=0; k<lMem; k++) {
++ pp=&tempbuff2[k];
++ pp1=&cbfiltersTbl[CB_FILTERLEN-1];
++ for (j=0;j<CB_FILTERLEN;j++) {
++ (*pos)+=(*pp++)*(*pp1--);
++ }
++ pos++;
++ }
++}
++
++
++
++/*----------------------------------------------------------------*
++ * Search the augmented part of the codebook to find the best
++ * measure.
++ *----------------------------------------------------------------*/
++
++void searchAugmentedCB(
++ int low, /* (i) Start index for the search */
++ int high, /* (i) End index for the search */
++ int stage, /* (i) Current stage */
++ int startIndex, /* (i) Codebook index for the first
++ aug vector */
++ float *target, /* (i) Target vector for encoding */
++ float *buffer, /* (i) Pointer to the end of the buffer for
++ augmented codebook construction */
++ float *max_measure, /* (i/o) Currently maximum measure */
++ int *best_index,/* (o) Currently the best index */
++ float *gain, /* (o) Currently the best gain */
++ float *energy, /* (o) Energy of augmented codebook
++ vectors */
++ float *invenergy/* (o) Inv energy of augmented codebook
++ vectors */
++) {
++ int icount, ilow, j, tmpIndex;
++ float *pp, *ppo, *ppi, *ppe, crossDot, alfa;
++ float weighted, measure, nrjRecursive;
++ float ftmp;
++
++ /* Compute the energy for the first (low-5)
++ noninterpolated samples */
++ nrjRecursive = (float) 0.0;
++ pp = buffer - low + 1;
++ for (j=0; j<(low-5); j++) {
++ nrjRecursive += ( (*pp)*(*pp) );
++ pp++;
++ }
++ ppe = buffer - low;
++
++
++ for (icount=low; icount<=high; icount++) {
++
++ /* Index of the codebook vector used for retrieving
++ energy values */
++ tmpIndex = startIndex+icount-20;
++
++ ilow = icount-4;
++
++ /* Update the energy recursively to save complexity */
++ nrjRecursive = nrjRecursive + (*ppe)*(*ppe);
++ ppe--;
++ energy[tmpIndex] = nrjRecursive;
++
++ /* Compute cross dot product for the first (low-5)
++ samples */
++ crossDot = (float) 0.0;
++
++
++ pp = buffer-icount;
++ for (j=0; j<ilow; j++) {
++ crossDot += target[j]*(*pp++);
++ }
++
++ /* interpolation */
++ alfa = (float) 0.2;
++ ppo = buffer-4;
++ ppi = buffer-icount-4;
++ for (j=ilow; j<icount; j++) {
++ weighted = ((float)1.0-alfa)*(*ppo)+alfa*(*ppi);
++ ppo++;
++ ppi++;
++ energy[tmpIndex] += weighted*weighted;
++ crossDot += target[j]*weighted;
++ alfa += (float)0.2;
++ }
++
++ /* Compute energy and cross dot product for the
++ remaining samples */
++ pp = buffer - icount;
++ for (j=icount; j<SUBL; j++) {
++ energy[tmpIndex] += (*pp)*(*pp);
++ crossDot += target[j]*(*pp++);
++ }
++
++ if (energy[tmpIndex]>0.0) {
++ invenergy[tmpIndex]=(float)1.0/(energy[tmpIndex]+EPS);
++ } else {
++ invenergy[tmpIndex] = (float) 0.0;
++ }
++
++ if (stage==0) {
++ measure = (float)-10000000.0;
++
++ if (crossDot > 0.0) {
++ measure = crossDot*crossDot*invenergy[tmpIndex];
++ }
++ }
++ else {
++ measure = crossDot*crossDot*invenergy[tmpIndex];
++ }
++
++ /* check if measure is better */
++ ftmp = crossDot*invenergy[tmpIndex];
++
++ if ((measure>*max_measure) && (fabs(ftmp)<CB_MAXGAIN)) {
++ *best_index = tmpIndex;
++ *max_measure = measure;
++ *gain = ftmp;
++ }
++ }
++}
++
++
++
++
++/*----------------------------------------------------------------*
++ * Recreate a specific codebook vector from the augmented part.
++ *
++ *----------------------------------------------------------------*/
++
++void createAugmentedVec(
++ int index, /* (i) Index for the augmented vector
++ to be created */
++ float *buffer, /* (i) Pointer to the end of the buffer for
++ augmented codebook construction */
++ float *cbVec/* (o) The construced codebook vector */
++) {
++ int ilow, j;
++ float *pp, *ppo, *ppi, alfa, alfa1, weighted;
++
++ ilow = index-5;
++
++ /* copy the first noninterpolated part */
++
++ pp = buffer-index;
++ memcpy(cbVec,pp,sizeof(float)*index);
++
++ /* interpolation */
++
++ alfa1 = (float)0.2;
++ alfa = 0.0;
++ ppo = buffer-5;
++ ppi = buffer-index-5;
++ for (j=ilow; j<index; j++) {
++ weighted = ((float)1.0-alfa)*(*ppo)+alfa*(*ppi);
++ ppo++;
++ ppi++;
++ cbVec[j] = weighted;
++ alfa += alfa1;
++ }
++
++ /* copy the second noninterpolated part */
++
++ pp = buffer - index;
++ memcpy(cbVec+index,pp,sizeof(float)*(SUBL-index));
++}
++
++
+diff -druN codecs/ilbc/createCB.h codecs/ilbc/createCB.h
+--- codecs/ilbc/createCB.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/createCB.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,56 @@
++
++/******************************************************************
++
++
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ createCB.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_CREATECB_H
++#define __iLBC_CREATECB_H
++
++void filteredCBvecs(
++ float *cbvectors, /* (o) Codebook vector for the
++ higher section */
++ float *mem, /* (i) Buffer to create codebook
++ vectors from */
++ int lMem /* (i) Length of buffer */
++);
++
++void searchAugmentedCB(
++ int low, /* (i) Start index for the search */
++ int high, /* (i) End index for the search */
++ int stage, /* (i) Current stage */
++ int startIndex, /* (i) CB index for the first
++ augmented vector */
++ float *target, /* (i) Target vector for encoding */
++ float *buffer, /* (i) Pointer to the end of the
++ buffer for augmented codebook
++ construction */
++ float *max_measure, /* (i/o) Currently maximum measure */
++ int *best_index,/* (o) Currently the best index */
++ float *gain, /* (o) Currently the best gain */
++ float *energy, /* (o) Energy of augmented
++ codebook vectors */
++ float *invenergy/* (o) Inv energy of aug codebook
++ vectors */
++);
++
++void createAugmentedVec(
++ int index, /* (i) Index for the aug vector
++ to be created */
++ float *buffer, /* (i) Pointer to the end of the
++ buffer for augmented codebook
++ construction */
++ float *cbVec /* (o) The construced codebook vector */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/doCPLC.c codecs/ilbc/doCPLC.c
+--- codecs/ilbc/doCPLC.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/doCPLC.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,259 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ doCPLC.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <string.h>
++#include <stdio.h>
++
++#include "iLBC_define.h"
++#include "doCPLC.h"
++
++/*----------------------------------------------------------------*
++ * Compute cross correlation and pitch gain for pitch prediction
++ * of last subframe at given lag.
++ *---------------------------------------------------------------*/
++
++static void compCorr(
++ float *cc, /* (o) cross correlation coefficient */
++ float *gc, /* (o) gain */
++ float *pm,
++ float *buffer, /* (i) signal buffer */
++ int lag, /* (i) pitch lag */
++ int bLen, /* (i) length of buffer */
++ int sRange /* (i) correlation search length */
++){
++
++
++ int i;
++ float ftmp1, ftmp2, ftmp3;
++
++ /* Guard against getting outside buffer */
++ if ((bLen-sRange-lag)<0) {
++ sRange=bLen-lag;
++ }
++
++ ftmp1 = 0.0;
++ ftmp2 = 0.0;
++ ftmp3 = 0.0;
++ for (i=0; i<sRange; i++) {
++ ftmp1 += buffer[bLen-sRange+i] *
++ buffer[bLen-sRange+i-lag];
++ ftmp2 += buffer[bLen-sRange+i-lag] *
++ buffer[bLen-sRange+i-lag];
++ ftmp3 += buffer[bLen-sRange+i] *
++ buffer[bLen-sRange+i];
++ }
++
++ if (ftmp2 > 0.0) {
++ *cc = ftmp1*ftmp1/ftmp2;
++ *gc = (float)fabs(ftmp1/ftmp2);
++ *pm=(float)fabs(ftmp1)/
++ ((float)sqrt(ftmp2)*(float)sqrt(ftmp3));
++ }
++ else {
++ *cc = 0.0;
++ *gc = 0.0;
++ *pm=0.0;
++ }
++}
++
++/*----------------------------------------------------------------*
++ * Packet loss concealment routine. Conceals a residual signal
++ * and LP parameters. If no packet loss, update state.
++ *---------------------------------------------------------------*/
++
++void doThePLC(
++ float *PLCresidual, /* (o) concealed residual */
++ float *PLClpc, /* (o) concealed LP parameters */
++ int PLI, /* (i) packet loss indicator
++ 0 - no PL, 1 = PL */
++ float *decresidual, /* (i) decoded residual */
++ float *lpc, /* (i) decoded LPC (only used for no PL) */
++ int inlag, /* (i) pitch lag */
++ iLBC_Dec_Inst_t *iLBCdec_inst
++ /* (i/o) decoder instance */
++){
++ int lag=20, randlag;
++ float gain, maxcc;
++ float use_gain;
++ float gain_comp, maxcc_comp, per, max_per;
++ int i, pick, use_lag;
++
++
++ float ftmp, randvec[BLOCKL_MAX], pitchfact, energy;
++
++ /* Packet Loss */
++
++ if (PLI == 1) {
++
++ iLBCdec_inst->consPLICount += 1;
++
++ /* if previous frame not lost,
++ determine pitch pred. gain */
++
++ if (iLBCdec_inst->prevPLI != 1) {
++
++ /* Search around the previous lag to find the
++ best pitch period */
++
++ lag=inlag-3;
++ compCorr(&maxcc, &gain, &max_per,
++ iLBCdec_inst->prevResidual,
++ lag, iLBCdec_inst->blockl, 60);
++ for (i=inlag-2;i<=inlag+3;i++) {
++ compCorr(&maxcc_comp, &gain_comp, &per,
++ iLBCdec_inst->prevResidual,
++ i, iLBCdec_inst->blockl, 60);
++
++ if (maxcc_comp>maxcc) {
++ maxcc=maxcc_comp;
++ gain=gain_comp;
++ lag=i;
++ max_per=per;
++ }
++ }
++
++ }
++
++ /* previous frame lost, use recorded lag and periodicity */
++
++ else {
++ lag=iLBCdec_inst->prevLag;
++ max_per=iLBCdec_inst->per;
++ }
++
++ /* downscaling */
++
++ use_gain=1.0;
++ if (iLBCdec_inst->consPLICount*iLBCdec_inst->blockl>320)
++ use_gain=(float)0.9;
++ else if (iLBCdec_inst->consPLICount*
++ iLBCdec_inst->blockl>2*320)
++ use_gain=(float)0.7;
++ else if (iLBCdec_inst->consPLICount*
++ iLBCdec_inst->blockl>3*320)
++ use_gain=(float)0.5;
++ else if (iLBCdec_inst->consPLICount*
++
++
++ iLBCdec_inst->blockl>4*320)
++ use_gain=(float)0.0;
++
++ /* mix noise and pitch repeatition */
++ ftmp=(float)sqrt(max_per);
++ if (ftmp>(float)0.7)
++ pitchfact=(float)1.0;
++ else if (ftmp>(float)0.4)
++ pitchfact=(ftmp-(float)0.4)/((float)0.7-(float)0.4);
++ else
++ pitchfact=0.0;
++
++
++ /* avoid repetition of same pitch cycle */
++ use_lag=lag;
++ if (lag<80) {
++ use_lag=2*lag;
++ }
++
++ /* compute concealed residual */
++
++ energy = 0.0;
++ for (i=0; i<iLBCdec_inst->blockl; i++) {
++
++ /* noise component */
++
++ iLBCdec_inst->seed=(iLBCdec_inst->seed*69069L+1) &
++ (0x80000000L-1);
++ randlag = 50 + ((signed long) iLBCdec_inst->seed)%70;
++ pick = i - randlag;
++
++ if (pick < 0) {
++ randvec[i] =
++ iLBCdec_inst->prevResidual[
++ iLBCdec_inst->blockl+pick];
++ } else {
++ randvec[i] = randvec[pick];
++ }
++
++ /* pitch repeatition component */
++ pick = i - use_lag;
++
++ if (pick < 0) {
++ PLCresidual[i] =
++ iLBCdec_inst->prevResidual[
++ iLBCdec_inst->blockl+pick];
++ } else {
++ PLCresidual[i] = PLCresidual[pick];
++ }
++
++ /* mix random and periodicity component */
++
++ if (i<80)
++ PLCresidual[i] = use_gain*(pitchfact *
++
++
++ PLCresidual[i] +
++ ((float)1.0 - pitchfact) * randvec[i]);
++ else if (i<160)
++ PLCresidual[i] = (float)0.95*use_gain*(pitchfact *
++ PLCresidual[i] +
++ ((float)1.0 - pitchfact) * randvec[i]);
++ else
++ PLCresidual[i] = (float)0.9*use_gain*(pitchfact *
++ PLCresidual[i] +
++ ((float)1.0 - pitchfact) * randvec[i]);
++
++ energy += PLCresidual[i] * PLCresidual[i];
++ }
++
++ /* less than 30 dB, use only noise */
++
++ if (sqrt(energy/(float)iLBCdec_inst->blockl) < 30.0) {
++ gain=0.0;
++ for (i=0; i<iLBCdec_inst->blockl; i++) {
++ PLCresidual[i] = randvec[i];
++ }
++ }
++
++ /* use old LPC */
++
++ memcpy(PLClpc,iLBCdec_inst->prevLpc,
++ (LPC_FILTERORDER+1)*sizeof(float));
++
++ }
++
++ /* no packet loss, copy input */
++
++ else {
++ memcpy(PLCresidual, decresidual,
++ iLBCdec_inst->blockl*sizeof(float));
++ memcpy(PLClpc, lpc, (LPC_FILTERORDER+1)*sizeof(float));
++ iLBCdec_inst->consPLICount = 0;
++ }
++
++ /* update state */
++
++ if (PLI) {
++ iLBCdec_inst->prevLag = lag;
++ iLBCdec_inst->per=max_per;
++ }
++
++ iLBCdec_inst->prevPLI = PLI;
++ memcpy(iLBCdec_inst->prevLpc, PLClpc,
++ (LPC_FILTERORDER+1)*sizeof(float));
++ memcpy(iLBCdec_inst->prevResidual, PLCresidual,
++ iLBCdec_inst->blockl*sizeof(float));
++}
++
++
++
++
+diff -druN codecs/ilbc/doCPLC.h codecs/ilbc/doCPLC.h
+--- codecs/ilbc/doCPLC.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/doCPLC.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,32 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ doCPLC.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++
++
++******************************************************************/
++
++#ifndef __iLBC_DOLPC_H
++#define __iLBC_DOLPC_H
++
++void doThePLC(
++ float *PLCresidual, /* (o) concealed residual */
++ float *PLClpc, /* (o) concealed LP parameters */
++ int PLI, /* (i) packet loss indicator
++ 0 - no PL, 1 = PL */
++ float *decresidual, /* (i) decoded residual */
++ float *lpc, /* (i) decoded LPC (only used for no PL) */
++ int inlag, /* (i) pitch lag */
++ iLBC_Dec_Inst_t *iLBCdec_inst
++ /* (i/o) decoder instance */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/enhancer.c codecs/ilbc/enhancer.c
+--- codecs/ilbc/enhancer.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/enhancer.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,665 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ enhancer.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <string.h>
++#include "iLBC_define.h"
++#include "enhancer.h"
++#include "constants.h"
++#include "filter.h"
++
++/*----------------------------------------------------------------*
++
++
++ * Find index in array such that the array element with said
++ * index is the element of said array closest to "value"
++ * according to the squared-error criterion
++ *---------------------------------------------------------------*/
++
++static void NearestNeighbor(
++ int *index, /* (o) index of array element closest
++ to value */
++ float *array, /* (i) data array */
++ float value,/* (i) value */
++ int arlength/* (i) dimension of data array */
++){
++ int i;
++ float bestcrit,crit;
++
++ crit=array[0]-value;
++ bestcrit=crit*crit;
++ *index=0;
++ for (i=1; i<arlength; i++) {
++ crit=array[i]-value;
++ crit=crit*crit;
++
++ if (crit<bestcrit) {
++ bestcrit=crit;
++ *index=i;
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++ * compute cross correlation between sequences
++ *---------------------------------------------------------------*/
++
++static void mycorr1(
++ float* corr, /* (o) correlation of seq1 and seq2 */
++ float* seq1, /* (i) first sequence */
++ int dim1, /* (i) dimension first seq1 */
++ const float *seq2, /* (i) second sequence */
++ int dim2 /* (i) dimension seq2 */
++){
++ int i,j;
++
++ for (i=0; i<=dim1-dim2; i++) {
++ corr[i]=0.0;
++ for (j=0; j<dim2; j++) {
++ corr[i] += seq1[i+j] * seq2[j];
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++ * upsample finite array assuming zeros outside bounds
++ *---------------------------------------------------------------*/
++
++
++
++static void enh_upsample(
++ float* useq1, /* (o) upsampled output sequence */
++ float* seq1,/* (i) unupsampled sequence */
++ int dim1, /* (i) dimension seq1 */
++ int hfl /* (i) polyphase filter length=2*hfl+1 */
++){
++ float *pu,*ps;
++ int i,j,k,q,filterlength,hfl2;
++ const float *polyp[ENH_UPS0]; /* pointers to
++ polyphase columns */
++ const float *pp;
++
++ /* define pointers for filter */
++
++ filterlength=2*hfl+1;
++
++ if ( filterlength > dim1 ) {
++ hfl2=(int) (dim1/2);
++ for (j=0; j<ENH_UPS0; j++) {
++ polyp[j]=polyphaserTbl+j*filterlength+hfl-hfl2;
++ }
++ hfl=hfl2;
++ filterlength=2*hfl+1;
++ }
++ else {
++ for (j=0; j<ENH_UPS0; j++) {
++ polyp[j]=polyphaserTbl+j*filterlength;
++ }
++ }
++
++ /* filtering: filter overhangs left side of sequence */
++
++ pu=useq1;
++ for (i=hfl; i<filterlength; i++) {
++ for (j=0; j<ENH_UPS0; j++) {
++ *pu=0.0;
++ pp = polyp[j];
++ ps = seq1+i;
++ for (k=0; k<=i; k++) {
++ *pu += *ps-- * *pp++;
++ }
++ pu++;
++ }
++ }
++
++ /* filtering: simple convolution=inner products */
++
++ for (i=filterlength; i<dim1; i++) {
++ for (j=0;j<ENH_UPS0; j++){
++ *pu=0.0;
++ pp = polyp[j];
++ ps = seq1+i;
++ for (k=0; k<filterlength; k++) {
++ *pu += *ps-- * *pp++;
++
++
++ }
++ pu++;
++ }
++ }
++
++ /* filtering: filter overhangs right side of sequence */
++
++ for (q=1; q<=hfl; q++) {
++ for (j=0; j<ENH_UPS0; j++) {
++ *pu=0.0;
++ pp = polyp[j]+q;
++ ps = seq1+dim1-1;
++ for (k=0; k<filterlength-q; k++) {
++ *pu += *ps-- * *pp++;
++ }
++ pu++;
++ }
++ }
++}
++
++
++/*----------------------------------------------------------------*
++ * find segment starting near idata+estSegPos that has highest
++ * correlation with idata+centerStartPos through
++ * idata+centerStartPos+ENH_BLOCKL-1 segment is found at a
++ * resolution of ENH_UPSO times the original of the original
++ * sampling rate
++ *---------------------------------------------------------------*/
++
++static void refiner(
++ float *seg, /* (o) segment array */
++ float *updStartPos, /* (o) updated start point */
++ float* idata, /* (i) original data buffer */
++ int idatal, /* (i) dimension of idata */
++ int centerStartPos, /* (i) beginning center segment */
++ float estSegPos,/* (i) estimated beginning other segment */
++ float period /* (i) estimated pitch period */
++){
++ int estSegPosRounded,searchSegStartPos,searchSegEndPos,corrdim;
++ int tloc,tloc2,i,st,en,fraction;
++ float vect[ENH_VECTL],corrVec[ENH_CORRDIM],maxv;
++ float corrVecUps[ENH_CORRDIM*ENH_UPS0];
++
++ /* defining array bounds */
++
++ estSegPosRounded=(int)(estSegPos - 0.5);
++
++ searchSegStartPos=estSegPosRounded-ENH_SLOP;
++
++ if (searchSegStartPos<0) {
++ searchSegStartPos=0;
++ }
++ searchSegEndPos=estSegPosRounded+ENH_SLOP;
++
++
++
++ if (searchSegEndPos+ENH_BLOCKL >= idatal) {
++ searchSegEndPos=idatal-ENH_BLOCKL-1;
++ }
++ corrdim=searchSegEndPos-searchSegStartPos+1;
++
++ /* compute upsampled correlation (corr33) and find
++ location of max */
++
++ mycorr1(corrVec,idata+searchSegStartPos,
++ corrdim+ENH_BLOCKL-1,idata+centerStartPos,ENH_BLOCKL);
++ enh_upsample(corrVecUps,corrVec,corrdim,ENH_FL0);
++ tloc=0; maxv=corrVecUps[0];
++ for (i=1; i<ENH_UPS0*corrdim; i++) {
++
++ if (corrVecUps[i]>maxv) {
++ tloc=i;
++ maxv=corrVecUps[i];
++ }
++ }
++
++ /* make vector can be upsampled without ever running outside
++ bounds */
++
++ *updStartPos= (float)searchSegStartPos +
++ (float)tloc/(float)ENH_UPS0+(float)1.0;
++ tloc2=(int)(tloc/ENH_UPS0);
++
++ if (tloc>tloc2*ENH_UPS0) {
++ tloc2++;
++ }
++ st=searchSegStartPos+tloc2-ENH_FL0;
++
++ if (st<0) {
++ memset(vect,0,-st*sizeof(float));
++ memcpy(&vect[-st],idata, (ENH_VECTL+st)*sizeof(float));
++ }
++ else {
++ en=st+ENH_VECTL;
++
++ if (en>idatal) {
++ memcpy(vect, &idata[st],
++ (ENH_VECTL-(en-idatal))*sizeof(float));
++ memset(&vect[ENH_VECTL-(en-idatal)], 0,
++ (en-idatal)*sizeof(float));
++ }
++ else {
++ memcpy(vect, &idata[st], ENH_VECTL*sizeof(float));
++ }
++ }
++ fraction=tloc2*ENH_UPS0-tloc;
++
++ /* compute the segment (this is actually a convolution) */
++
++ mycorr1(seg,vect,ENH_VECTL,polyphaserTbl+(2*ENH_FL0+1)*fraction,
++
++
++ 2*ENH_FL0+1);
++}
++
++/*----------------------------------------------------------------*
++ * find the smoothed output data
++ *---------------------------------------------------------------*/
++
++static void smath(
++ float *odata, /* (o) smoothed output */
++ float *sseq,/* (i) said second sequence of waveforms */
++ int hl, /* (i) 2*hl+1 is sseq dimension */
++ float alpha0/* (i) max smoothing energy fraction */
++){
++ int i,k;
++ float w00,w10,w11,A,B,C,*psseq,err,errs;
++ float surround[BLOCKL_MAX]; /* shape contributed by other than
++ current */
++ float wt[2*ENH_HL+1]; /* waveform weighting to get
++ surround shape */
++ float denom;
++
++ /* create shape of contribution from all waveforms except the
++ current one */
++
++ for (i=1; i<=2*hl+1; i++) {
++ wt[i-1] = (float)0.5*(1 - (float)cos(2*PI*i/(2*hl+2)));
++ }
++ wt[hl]=0.0; /* for clarity, not used */
++ for (i=0; i<ENH_BLOCKL; i++) {
++ surround[i]=sseq[i]*wt[0];
++ }
++ for (k=1; k<hl; k++) {
++ psseq=sseq+k*ENH_BLOCKL;
++ for(i=0;i<ENH_BLOCKL; i++) {
++ surround[i]+=psseq[i]*wt[k];
++ }
++ }
++ for (k=hl+1; k<=2*hl; k++) {
++ psseq=sseq+k*ENH_BLOCKL;
++ for(i=0;i<ENH_BLOCKL; i++) {
++ surround[i]+=psseq[i]*wt[k];
++ }
++ }
++
++ /* compute some inner products */
++
++ w00 = w10 = w11 = 0.0;
++ psseq=sseq+hl*ENH_BLOCKL; /* current block */
++ for (i=0; i<ENH_BLOCKL;i++) {
++ w00+=psseq[i]*psseq[i];
++ w11+=surround[i]*surround[i];
++ w10+=surround[i]*psseq[i];
++ }
++
++
++
++ if (fabs(w11) < 1.0) {
++ w11=1.0;
++ }
++ C = (float)sqrt( w00/w11);
++
++ /* first try enhancement without power-constraint */
++
++ errs=0.0;
++ psseq=sseq+hl*ENH_BLOCKL;
++ for (i=0; i<ENH_BLOCKL; i++) {
++ odata[i]=C*surround[i];
++ err=psseq[i]-odata[i];
++ errs+=err*err;
++ }
++
++ /* if constraint violated by first try, add constraint */
++
++ if (errs > alpha0 * w00) {
++ if ( w00 < 1) {
++ w00=1;
++ }
++ denom = (w11*w00-w10*w10)/(w00*w00);
++
++ if (denom > 0.0001) { /* eliminates numerical problems
++ for if smooth */
++ A = (float)sqrt( (alpha0- alpha0*alpha0/4)/denom);
++ B = -alpha0/2 - A * w10/w00;
++ B = B+1;
++ }
++ else { /* essentially no difference between cycles;
++ smoothing not needed */
++ A= 0.0;
++ B= 1.0;
++ }
++
++ /* create smoothed sequence */
++
++ psseq=sseq+hl*ENH_BLOCKL;
++ for (i=0; i<ENH_BLOCKL; i++) {
++ odata[i]=A*surround[i]+B*psseq[i];
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++ * get the pitch-synchronous sample sequence
++ *---------------------------------------------------------------*/
++
++static void getsseq(
++ float *sseq, /* (o) the pitch-synchronous sequence */
++ float *idata, /* (i) original data */
++ int idatal, /* (i) dimension of data */
++ int centerStartPos, /* (i) where current block starts */
++ float *period, /* (i) rough-pitch-period array */
++
++
++ float *plocs, /* (i) where periods of period array
++ are taken */
++ int periodl, /* (i) dimension period array */
++ int hl /* (i) 2*hl+1 is the number of sequences */
++){
++ int i,centerEndPos,q;
++ float blockStartPos[2*ENH_HL+1];
++ int lagBlock[2*ENH_HL+1];
++ float plocs2[ENH_PLOCSL];
++ float *psseq;
++
++ centerEndPos=centerStartPos+ENH_BLOCKL-1;
++
++ /* present */
++
++ NearestNeighbor(lagBlock+hl,plocs,
++ (float)0.5*(centerStartPos+centerEndPos),periodl);
++
++ blockStartPos[hl]=(float)centerStartPos;
++ psseq=sseq+ENH_BLOCKL*hl;
++ memcpy(psseq, idata+centerStartPos, ENH_BLOCKL*sizeof(float));
++
++ /* past */
++
++ for (q=hl-1; q>=0; q--) {
++ blockStartPos[q]=blockStartPos[q+1]-period[lagBlock[q+1]];
++ NearestNeighbor(lagBlock+q,plocs,
++ blockStartPos[q]+
++ ENH_BLOCKL_HALF-period[lagBlock[q+1]], periodl);
++
++
++ if (blockStartPos[q]-ENH_OVERHANG>=0) {
++ refiner(sseq+q*ENH_BLOCKL, blockStartPos+q, idata,
++ idatal, centerStartPos, blockStartPos[q],
++ period[lagBlock[q+1]]);
++ } else {
++ psseq=sseq+q*ENH_BLOCKL;
++ memset(psseq, 0, ENH_BLOCKL*sizeof(float));
++ }
++ }
++
++ /* future */
++
++ for (i=0; i<periodl; i++) {
++ plocs2[i]=plocs[i]-period[i];
++ }
++ for (q=hl+1; q<=2*hl; q++) {
++ NearestNeighbor(lagBlock+q,plocs2,
++ blockStartPos[q-1]+ENH_BLOCKL_HALF,periodl);
++
++ blockStartPos[q]=blockStartPos[q-1]+period[lagBlock[q]];
++ if (blockStartPos[q]+ENH_BLOCKL+ENH_OVERHANG<idatal) {
++ refiner(sseq+ENH_BLOCKL*q, blockStartPos+q, idata,
++ idatal, centerStartPos, blockStartPos[q],
++
++
++ period[lagBlock[q]]);
++ }
++ else {
++ psseq=sseq+q*ENH_BLOCKL;
++ memset(psseq, 0, ENH_BLOCKL*sizeof(float));
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++ * perform enhancement on idata+centerStartPos through
++ * idata+centerStartPos+ENH_BLOCKL-1
++ *---------------------------------------------------------------*/
++
++static void enhancer(
++ float *odata, /* (o) smoothed block, dimension blockl */
++ float *idata, /* (i) data buffer used for enhancing */
++ int idatal, /* (i) dimension idata */
++ int centerStartPos, /* (i) first sample current block
++ within idata */
++ float alpha0, /* (i) max correction-energy-fraction
++ (in [0,1]) */
++ float *period, /* (i) pitch period array */
++ float *plocs, /* (i) locations where period array
++ values valid */
++ int periodl /* (i) dimension of period and plocs */
++){
++ float sseq[(2*ENH_HL+1)*ENH_BLOCKL];
++
++ /* get said second sequence of segments */
++
++ getsseq(sseq,idata,idatal,centerStartPos,period,
++ plocs,periodl,ENH_HL);
++
++ /* compute the smoothed output from said second sequence */
++
++ smath(odata,sseq,ENH_HL,alpha0);
++
++}
++
++/*----------------------------------------------------------------*
++ * cross correlation
++ *---------------------------------------------------------------*/
++
++float xCorrCoef(
++ float *target, /* (i) first array */
++ float *regressor, /* (i) second array */
++ int subl /* (i) dimension arrays */
++){
++ int i;
++ float ftmp1, ftmp2;
++
++ ftmp1 = 0.0;
++ ftmp2 = 0.0;
++
++
++ for (i=0; i<subl; i++) {
++ ftmp1 += target[i]*regressor[i];
++ ftmp2 += regressor[i]*regressor[i];
++ }
++
++ if (ftmp1 > 0.0) {
++ return (float)(ftmp1*ftmp1/ftmp2);
++ }
++ else {
++ return (float)0.0;
++ }
++}
++
++/*----------------------------------------------------------------*
++ * interface for enhancer
++ *---------------------------------------------------------------*/
++
++int enhancerInterface(
++ float *out, /* (o) enhanced signal */
++ float *in, /* (i) unenhanced signal */
++ iLBC_Dec_Inst_t *iLBCdec_inst /* (i) buffers etc */
++){
++ float *enh_buf, *enh_period;
++ int iblock, isample;
++ int lag=0, ilag, i, ioffset;
++ float cc, maxcc;
++ float ftmp1, ftmp2;
++ float *inPtr, *enh_bufPtr1, *enh_bufPtr2;
++ float plc_pred[ENH_BLOCKL];
++
++ float lpState[6], downsampled[(ENH_NBLOCKS*ENH_BLOCKL+120)/2];
++ int inLen=ENH_NBLOCKS*ENH_BLOCKL+120;
++ int start, plc_blockl, inlag;
++
++ enh_buf=iLBCdec_inst->enh_buf;
++ enh_period=iLBCdec_inst->enh_period;
++
++ memmove(enh_buf, &enh_buf[iLBCdec_inst->blockl],
++ (ENH_BUFL-iLBCdec_inst->blockl)*sizeof(float));
++
++ memcpy(&enh_buf[ENH_BUFL-iLBCdec_inst->blockl], in,
++ iLBCdec_inst->blockl*sizeof(float));
++
++ if (iLBCdec_inst->mode==30)
++ plc_blockl=ENH_BLOCKL;
++ else
++ plc_blockl=40;
++
++ /* when 20 ms frame, move processing one block */
++ ioffset=0;
++ if (iLBCdec_inst->mode==20) ioffset=1;
++
++ i=3-ioffset;
++ memmove(enh_period, &enh_period[i],
++
++
++ (ENH_NBLOCKS_TOT-i)*sizeof(float));
++
++ /* Set state information to the 6 samples right before
++ the samples to be downsampled. */
++
++ memcpy(lpState,
++ enh_buf+(ENH_NBLOCKS_EXTRA+ioffset)*ENH_BLOCKL-126,
++ 6*sizeof(float));
++
++ /* Down sample a factor 2 to save computations */
++
++ DownSample(enh_buf+(ENH_NBLOCKS_EXTRA+ioffset)*ENH_BLOCKL-120,
++ lpFilt_coefsTbl, inLen-ioffset*ENH_BLOCKL,
++ lpState, downsampled);
++
++ /* Estimate the pitch in the down sampled domain. */
++ for (iblock = 0; iblock<ENH_NBLOCKS-ioffset; iblock++) {
++
++ lag = 10;
++ maxcc = xCorrCoef(downsampled+60+iblock*
++ ENH_BLOCKL_HALF, downsampled+60+iblock*
++ ENH_BLOCKL_HALF-lag, ENH_BLOCKL_HALF);
++ for (ilag=11; ilag<60; ilag++) {
++ cc = xCorrCoef(downsampled+60+iblock*
++ ENH_BLOCKL_HALF, downsampled+60+iblock*
++ ENH_BLOCKL_HALF-ilag, ENH_BLOCKL_HALF);
++
++ if (cc > maxcc) {
++ maxcc = cc;
++ lag = ilag;
++ }
++ }
++
++ /* Store the estimated lag in the non-downsampled domain */
++ enh_period[iblock+ENH_NBLOCKS_EXTRA+ioffset] = (float)lag*2;
++
++
++ }
++
++
++ /* PLC was performed on the previous packet */
++ if (iLBCdec_inst->prev_enh_pl==1) {
++
++ inlag=(int)enh_period[ENH_NBLOCKS_EXTRA+ioffset];
++
++ lag = inlag-1;
++ maxcc = xCorrCoef(in, in+lag, plc_blockl);
++ for (ilag=inlag; ilag<=inlag+1; ilag++) {
++ cc = xCorrCoef(in, in+ilag, plc_blockl);
++
++ if (cc > maxcc) {
++ maxcc = cc;
++ lag = ilag;
++ }
++ }
++
++
++
++ enh_period[ENH_NBLOCKS_EXTRA+ioffset-1]=(float)lag;
++
++ /* compute new concealed residual for the old lookahead,
++ mix the forward PLC with a backward PLC from
++ the new frame */
++
++ inPtr=&in[lag-1];
++
++ enh_bufPtr1=&plc_pred[plc_blockl-1];
++
++ if (lag>plc_blockl) {
++ start=plc_blockl;
++ } else {
++ start=lag;
++ }
++
++ for (isample = start; isample>0; isample--) {
++ *enh_bufPtr1-- = *inPtr--;
++ }
++
++ enh_bufPtr2=&enh_buf[ENH_BUFL-1-iLBCdec_inst->blockl];
++ for (isample = (plc_blockl-1-lag); isample>=0; isample--)
++{
++ *enh_bufPtr1-- = *enh_bufPtr2--;
++ }
++
++ /* limit energy change */
++ ftmp2=0.0;
++ ftmp1=0.0;
++ for (i=0;i<plc_blockl;i++) {
++ ftmp2+=enh_buf[ENH_BUFL-1-iLBCdec_inst->blockl-i]*
++ enh_buf[ENH_BUFL-1-iLBCdec_inst->blockl-i];
++ ftmp1+=plc_pred[i]*plc_pred[i];
++ }
++ ftmp1=(float)sqrt(ftmp1/(float)plc_blockl);
++ ftmp2=(float)sqrt(ftmp2/(float)plc_blockl);
++ if (ftmp1>(float)2.0*ftmp2 && ftmp1>0.0) {
++ for (i=0;i<plc_blockl-10;i++) {
++ plc_pred[i]*=(float)2.0*ftmp2/ftmp1;
++ }
++ for (i=plc_blockl-10;i<plc_blockl;i++) {
++ plc_pred[i]*=(float)(i-plc_blockl+10)*
++ ((float)1.0-(float)2.0*ftmp2/ftmp1)/(float)(10)+
++ (float)2.0*ftmp2/ftmp1;
++ }
++ }
++
++ enh_bufPtr1=&enh_buf[ENH_BUFL-1-iLBCdec_inst->blockl];
++ for (i=0; i<plc_blockl; i++) {
++ ftmp1 = (float) (i+1) / (float) (plc_blockl+1);
++ *enh_bufPtr1 *= ftmp1;
++ *enh_bufPtr1 += ((float)1.0-ftmp1)*
++ plc_pred[plc_blockl-1-i];
++ enh_bufPtr1--;
++ }
++
++
++ }
++
++ if (iLBCdec_inst->mode==20) {
++ /* Enhancer with 40 samples delay */
++ for (iblock = 0; iblock<2; iblock++) {
++ enhancer(out+iblock*ENH_BLOCKL, enh_buf,
++ ENH_BUFL, (5+iblock)*ENH_BLOCKL+40,
++ ENH_ALPHA0, enh_period, enh_plocsTbl,
++ ENH_NBLOCKS_TOT);
++ }
++ } else if (iLBCdec_inst->mode==30) {
++ /* Enhancer with 80 samples delay */
++ for (iblock = 0; iblock<3; iblock++) {
++ enhancer(out+iblock*ENH_BLOCKL, enh_buf,
++ ENH_BUFL, (4+iblock)*ENH_BLOCKL,
++ ENH_ALPHA0, enh_period, enh_plocsTbl,
++ ENH_NBLOCKS_TOT);
++ }
++ }
++
++ return (lag*2);
++}
++
++
+diff -druN codecs/ilbc/enhancer.h codecs/ilbc/enhancer.h
+--- codecs/ilbc/enhancer.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/enhancer.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,33 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ enhancer.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __ENHANCER_H
++#define __ENHANCER_H
++
++#include "iLBC_define.h"
++
++float xCorrCoef(
++ float *target, /* (i) first array */
++ float *regressor, /* (i) second array */
++ int subl /* (i) dimension arrays */
++);
++
++int enhancerInterface(
++ float *out, /* (o) the enhanced recidual signal */
++ float *in, /* (i) the recidual signal to enhance */
++ iLBC_Dec_Inst_t *iLBCdec_inst
++ /* (i/o) the decoder state structure */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/filter.c codecs/ilbc/filter.c
+--- codecs/ilbc/filter.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/filter.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,168 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ filter.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++
++
++#include "iLBC_define.h"
++#include "filter.h"
++
++/*----------------------------------------------------------------*
++ * all-pole filter
++ *---------------------------------------------------------------*/
++
++void AllPoleFilter(
++ float *InOut, /* (i/o) on entrance InOut[-orderCoef] to
++ InOut[-1] contain the state of the
++ filter (delayed samples). InOut[0] to
++ InOut[lengthInOut-1] contain the filter
++ input, on en exit InOut[-orderCoef] to
++ InOut[-1] is unchanged and InOut[0] to
++ InOut[lengthInOut-1] contain filtered
++ samples */
++ float *Coef,/* (i) filter coefficients, Coef[0] is assumed
++ to be 1.0 */
++ int lengthInOut,/* (i) number of input/output samples */
++ int orderCoef /* (i) number of filter coefficients */
++){
++ int n,k;
++
++ for(n=0;n<lengthInOut;n++){
++ for(k=1;k<=orderCoef;k++){
++ *InOut -= Coef[k]*InOut[-k];
++ }
++ InOut++;
++ }
++}
++
++/*----------------------------------------------------------------*
++ * all-zero filter
++ *---------------------------------------------------------------*/
++
++void AllZeroFilter(
++ float *In, /* (i) In[0] to In[lengthInOut-1] contain
++ filter input samples */
++ float *Coef,/* (i) filter coefficients (Coef[0] is assumed
++ to be 1.0) */
++ int lengthInOut,/* (i) number of input/output samples */
++ int orderCoef, /* (i) number of filter coefficients */
++ float *Out /* (i/o) on entrance Out[-orderCoef] to Out[-1]
++ contain the filter state, on exit Out[0]
++ to Out[lengthInOut-1] contain filtered
++ samples */
++){
++ int n,k;
++
++ for(n=0;n<lengthInOut;n++){
++ *Out = Coef[0]*In[0];
++ for(k=1;k<=orderCoef;k++){
++ *Out += Coef[k]*In[-k];
++ }
++
++
++ Out++;
++ In++;
++ }
++}
++
++/*----------------------------------------------------------------*
++ * pole-zero filter
++ *---------------------------------------------------------------*/
++
++void ZeroPoleFilter(
++ float *In, /* (i) In[0] to In[lengthInOut-1] contain
++ filter input samples In[-orderCoef] to
++ In[-1] contain state of all-zero
++ section */
++ float *ZeroCoef,/* (i) filter coefficients for all-zero
++ section (ZeroCoef[0] is assumed to
++ be 1.0) */
++ float *PoleCoef,/* (i) filter coefficients for all-pole section
++ (ZeroCoef[0] is assumed to be 1.0) */
++ int lengthInOut,/* (i) number of input/output samples */
++ int orderCoef, /* (i) number of filter coefficients */
++ float *Out /* (i/o) on entrance Out[-orderCoef] to Out[-1]
++ contain state of all-pole section. On
++ exit Out[0] to Out[lengthInOut-1]
++ contain filtered samples */
++){
++ AllZeroFilter(In,ZeroCoef,lengthInOut,orderCoef,Out);
++ AllPoleFilter(Out,PoleCoef,lengthInOut,orderCoef);
++}
++
++/*----------------------------------------------------------------*
++ * downsample (LP filter and decimation)
++ *---------------------------------------------------------------*/
++
++void DownSample (
++ float *In, /* (i) input samples */
++ float *Coef, /* (i) filter coefficients */
++ int lengthIn, /* (i) number of input samples */
++ float *state, /* (i) filter state */
++ float *Out /* (o) downsampled output */
++){
++ float o;
++ float *Out_ptr = Out;
++ float *Coef_ptr, *In_ptr;
++ float *state_ptr;
++ int i, j, stop;
++
++ /* LP filter and decimate at the same time */
++
++ for (i = DELAY_DS; i < lengthIn; i+=FACTOR_DS)
++ {
++ Coef_ptr = &Coef[0];
++ In_ptr = &In[i];
++ state_ptr = &state[FILTERORDER_DS-2];
++
++
++
++ o = (float)0.0;
++
++ stop = (i < FILTERORDER_DS) ? i + 1 : FILTERORDER_DS;
++
++ for (j = 0; j < stop; j++)
++ {
++ o += *Coef_ptr++ * (*In_ptr--);
++ }
++ for (j = i + 1; j < FILTERORDER_DS; j++)
++ {
++ o += *Coef_ptr++ * (*state_ptr--);
++ }
++
++ *Out_ptr++ = o;
++ }
++
++ /* Get the last part (use zeros as input for the future) */
++
++ for (i=(lengthIn+FACTOR_DS); i<(lengthIn+DELAY_DS);
++ i+=FACTOR_DS) {
++
++ o=(float)0.0;
++
++ if (i<lengthIn) {
++ Coef_ptr = &Coef[0];
++ In_ptr = &In[i];
++ for (j=0; j<FILTERORDER_DS; j++) {
++ o += *Coef_ptr++ * (*Out_ptr--);
++ }
++ } else {
++ Coef_ptr = &Coef[i-lengthIn];
++ In_ptr = &In[lengthIn-1];
++ for (j=0; j<FILTERORDER_DS-(i-lengthIn); j++) {
++ o += *Coef_ptr++ * (*In_ptr--);
++ }
++ }
++ *Out_ptr++ = o;
++ }
++}
++
++
+diff -druN codecs/ilbc/filter.h codecs/ilbc/filter.h
+--- codecs/ilbc/filter.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/filter.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,73 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ filter.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_FILTER_H
++#define __iLBC_FILTER_H
++
++void AllPoleFilter(
++ float *InOut, /* (i/o) on entrance InOut[-orderCoef] to
++ InOut[-1] contain the state of the
++ filter (delayed samples). InOut[0] to
++ InOut[lengthInOut-1] contain the filter
++ input, on en exit InOut[-orderCoef] to
++ InOut[-1] is unchanged and InOut[0] to
++ InOut[lengthInOut-1] contain filtered
++ samples */
++ float *Coef,/* (i) filter coefficients, Coef[0] is assumed
++ to be 1.0 */
++ int lengthInOut,/* (i) number of input/output samples */
++ int orderCoef /* (i) number of filter coefficients */
++);
++
++
++
++void AllZeroFilter(
++ float *In, /* (i) In[0] to In[lengthInOut-1] contain
++ filter input samples */
++ float *Coef,/* (i) filter coefficients (Coef[0] is assumed
++ to be 1.0) */
++ int lengthInOut,/* (i) number of input/output samples */
++ int orderCoef, /* (i) number of filter coefficients */
++ float *Out /* (i/o) on entrance Out[-orderCoef] to Out[-1]
++ contain the filter state, on exit Out[0]
++ to Out[lengthInOut-1] contain filtered
++ samples */
++);
++
++void ZeroPoleFilter(
++ float *In, /* (i) In[0] to In[lengthInOut-1] contain filter
++ input samples In[-orderCoef] to In[-1]
++ contain state of all-zero section */
++ float *ZeroCoef,/* (i) filter coefficients for all-zero
++ section (ZeroCoef[0] is assumed to
++ be 1.0) */
++ float *PoleCoef,/* (i) filter coefficients for all-pole section
++ (ZeroCoef[0] is assumed to be 1.0) */
++ int lengthInOut,/* (i) number of input/output samples */
++ int orderCoef, /* (i) number of filter coefficients */
++ float *Out /* (i/o) on entrance Out[-orderCoef] to Out[-1]
++ contain state of all-pole section. On
++ exit Out[0] to Out[lengthInOut-1]
++ contain filtered samples */
++);
++
++void DownSample (
++ float *In, /* (i) input samples */
++ float *Coef, /* (i) filter coefficients */
++ int lengthIn, /* (i) number of input samples */
++ float *state, /* (i) filter state */
++ float *Out /* (o) downsampled output */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/gainquant.c codecs/ilbc/gainquant.c
+--- codecs/ilbc/gainquant.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/gainquant.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,107 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ gainquant.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++
++
++******************************************************************/
++
++#include <string.h>
++#include <math.h>
++#include "constants.h"
++#include "gainquant.h"
++#include "filter.h"
++
++/*----------------------------------------------------------------*
++ * quantizer for the gain in the gain-shape coding of residual
++ *---------------------------------------------------------------*/
++
++float gainquant(/* (o) quantized gain value */
++ float in, /* (i) gain value */
++ float maxIn,/* (i) maximum of gain value */
++ int cblen, /* (i) number of quantization indices */
++ int *index /* (o) quantization index */
++){
++ int i, tindex;
++ float minmeasure,measure, *cb, scale;
++
++ /* ensure a lower bound on the scaling factor */
++
++ scale=maxIn;
++
++ if (scale<0.1) {
++ scale=(float)0.1;
++ }
++
++ /* select the quantization table */
++
++ if (cblen == 8) {
++ cb = gain_sq3Tbl;
++ } else if (cblen == 16) {
++ cb = gain_sq4Tbl;
++ } else {
++ cb = gain_sq5Tbl;
++ }
++
++ /* select the best index in the quantization table */
++
++ minmeasure=10000000.0;
++ tindex=0;
++ for (i=0; i<cblen; i++) {
++ measure=(in-scale*cb[i])*(in-scale*cb[i]);
++
++ if (measure<minmeasure) {
++ tindex=i;
++ minmeasure=measure;
++ }
++ }
++ *index=tindex;
++
++ /* return the quantized value */
++
++
++
++ return scale*cb[tindex];
++}
++
++/*----------------------------------------------------------------*
++ * decoder for quantized gains in the gain-shape coding of
++ * residual
++ *---------------------------------------------------------------*/
++
++float gaindequant( /* (o) quantized gain value */
++ int index, /* (i) quantization index */
++ float maxIn,/* (i) maximum of unquantized gain */
++ int cblen /* (i) number of quantization indices */
++){
++ float scale;
++
++ /* obtain correct scale factor */
++
++ scale=(float)fabs(maxIn);
++
++ if (scale<0.1) {
++ scale=(float)0.1;
++ }
++
++ /* select the quantization table and return the decoded value */
++
++ if (cblen==8) {
++ return scale*gain_sq3Tbl[index];
++ } else if (cblen==16) {
++ return scale*gain_sq4Tbl[index];
++ }
++ else if (cblen==32) {
++ return scale*gain_sq5Tbl[index];
++ }
++
++ return 0.0;
++}
++
++
+diff -druN codecs/ilbc/gainquant.h codecs/ilbc/gainquant.h
+--- codecs/ilbc/gainquant.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/gainquant.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,31 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ gainquant.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_GAINQUANT_H
++#define __iLBC_GAINQUANT_H
++
++float gainquant(/* (o) quantized gain value */
++ float in, /* (i) gain value */
++ float maxIn,/* (i) maximum of gain value */
++ int cblen, /* (i) number of quantization indices */
++ int *index /* (o) quantization index */
++);
++
++float gaindequant( /* (o) quantized gain value */
++ int index, /* (i) quantization index */
++ float maxIn,/* (i) maximum of unquantized gain */
++ int cblen /* (i) number of quantization indices */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/getCBvec.c codecs/ilbc/getCBvec.c
+--- codecs/ilbc/getCBvec.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/getCBvec.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,181 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ getCBvec.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include "iLBC_define.h"
++#include "getCBvec.h"
++#include "constants.h"
++#include <string.h>
++
++/*----------------------------------------------------------------*
++ * Construct codebook vector for given index.
++ *---------------------------------------------------------------*/
++
++void getCBvec(
++ float *cbvec, /* (o) Constructed codebook vector */
++ float *mem, /* (i) Codebook buffer */
++ int index, /* (i) Codebook index */
++ int lMem, /* (i) Length of codebook buffer */
++ int cbveclen/* (i) Codebook vector length */
++){
++ int j, k, n, memInd, sFilt;
++ float tmpbuf[CB_MEML];
++ int base_size;
++ int ilow, ihigh;
++ float alfa, alfa1;
++
++ /* Determine size of codebook sections */
++
++ base_size=lMem-cbveclen+1;
++
++ if (cbveclen==SUBL) {
++ base_size+=cbveclen/2;
++ }
++
++ /* No filter -> First codebook section */
++
++
++
++ if (index<lMem-cbveclen+1) {
++
++ /* first non-interpolated vectors */
++
++ k=index+cbveclen;
++ /* get vector */
++ memcpy(cbvec, mem+lMem-k, cbveclen*sizeof(float));
++
++ } else if (index < base_size) {
++
++ k=2*(index-(lMem-cbveclen+1))+cbveclen;
++
++ ihigh=k/2;
++ ilow=ihigh-5;
++
++ /* Copy first noninterpolated part */
++
++ memcpy(cbvec, mem+lMem-k/2, ilow*sizeof(float));
++
++ /* interpolation */
++
++ alfa1=(float)0.2;
++ alfa=0.0;
++ for (j=ilow; j<ihigh; j++) {
++ cbvec[j]=((float)1.0-alfa)*mem[lMem-k/2+j]+
++ alfa*mem[lMem-k+j];
++ alfa+=alfa1;
++ }
++
++ /* Copy second noninterpolated part */
++
++ memcpy(cbvec+ihigh, mem+lMem-k+ihigh,
++ (cbveclen-ihigh)*sizeof(float));
++
++ }
++
++ /* Higher codebbok section based on filtering */
++
++ else {
++
++ /* first non-interpolated vectors */
++
++ if (index-base_size<lMem-cbveclen+1) {
++ float tempbuff2[CB_MEML+CB_FILTERLEN+1];
++ float *pos;
++ float *pp, *pp1;
++
++ memset(tempbuff2, 0,
++ CB_HALFFILTERLEN*sizeof(float));
++ memcpy(&tempbuff2[CB_HALFFILTERLEN], mem,
++ lMem*sizeof(float));
++ memset(&tempbuff2[lMem+CB_HALFFILTERLEN], 0,
++ (CB_HALFFILTERLEN+1)*sizeof(float));
++
++
++
++ k=index-base_size+cbveclen;
++ sFilt=lMem-k;
++ memInd=sFilt+1-CB_HALFFILTERLEN;
++
++ /* do filtering */
++ pos=cbvec;
++ memset(pos, 0, cbveclen*sizeof(float));
++ for (n=0; n<cbveclen; n++) {
++ pp=&tempbuff2[memInd+n+CB_HALFFILTERLEN];
++ pp1=&cbfiltersTbl[CB_FILTERLEN-1];
++ for (j=0; j<CB_FILTERLEN; j++) {
++ (*pos)+=(*pp++)*(*pp1--);
++ }
++ pos++;
++ }
++ }
++
++ /* interpolated vectors */
++
++ else {
++ float tempbuff2[CB_MEML+CB_FILTERLEN+1];
++
++ float *pos;
++ float *pp, *pp1;
++ int i;
++
++ memset(tempbuff2, 0,
++ CB_HALFFILTERLEN*sizeof(float));
++ memcpy(&tempbuff2[CB_HALFFILTERLEN], mem,
++ lMem*sizeof(float));
++ memset(&tempbuff2[lMem+CB_HALFFILTERLEN], 0,
++ (CB_HALFFILTERLEN+1)*sizeof(float));
++
++ k=2*(index-base_size-
++ (lMem-cbveclen+1))+cbveclen;
++ sFilt=lMem-k;
++ memInd=sFilt+1-CB_HALFFILTERLEN;
++
++ /* do filtering */
++ pos=&tmpbuf[sFilt];
++ memset(pos, 0, k*sizeof(float));
++ for (i=0; i<k; i++) {
++ pp=&tempbuff2[memInd+i+CB_HALFFILTERLEN];
++ pp1=&cbfiltersTbl[CB_FILTERLEN-1];
++ for (j=0; j<CB_FILTERLEN; j++) {
++ (*pos)+=(*pp++)*(*pp1--);
++ }
++ pos++;
++ }
++
++ ihigh=k/2;
++ ilow=ihigh-5;
++
++
++
++ /* Copy first noninterpolated part */
++
++ memcpy(cbvec, tmpbuf+lMem-k/2,
++ ilow*sizeof(float));
++
++ /* interpolation */
++
++ alfa1=(float)0.2;
++ alfa=0.0;
++ for (j=ilow; j<ihigh; j++) {
++ cbvec[j]=((float)1.0-alfa)*
++ tmpbuf[lMem-k/2+j]+alfa*tmpbuf[lMem-k+j];
++ alfa+=alfa1;
++ }
++
++ /* Copy second noninterpolated part */
++
++ memcpy(cbvec+ihigh, tmpbuf+lMem-k+ihigh,
++ (cbveclen-ihigh)*sizeof(float));
++ }
++ }
++}
++
++
+diff -druN codecs/ilbc/getCBvec.h codecs/ilbc/getCBvec.h
+--- codecs/ilbc/getCBvec.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/getCBvec.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,28 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ getCBvec.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_GETCBVEC_H
++#define __iLBC_GETCBVEC_H
++
++
++
++void getCBvec(
++ float *cbvec, /* (o) Constructed codebook vector */
++ float *mem, /* (i) Codebook buffer */
++ int index, /* (i) Codebook index */
++ int lMem, /* (i) Length of codebook buffer */
++ int cbveclen/* (i) Codebook vector length */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/helpfun.c codecs/ilbc/helpfun.c
+--- codecs/ilbc/helpfun.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/helpfun.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,308 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ helpfun.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++
++#include "iLBC_define.h"
++#include "helpfun.h"
++#include "constants.h"
++
++/*----------------------------------------------------------------*
++ * calculation of auto correlation
++ *---------------------------------------------------------------*/
++
++void autocorr(
++ float *r, /* (o) autocorrelation vector */
++ const float *x, /* (i) data vector */
++ int N, /* (i) length of data vector */
++ int order /* largest lag for calculated
++ autocorrelations */
++){
++ int lag, n;
++ float sum;
++
++ for (lag = 0; lag <= order; lag++) {
++ sum = 0;
++ for (n = 0; n < N - lag; n++) {
++ sum += x[n] * x[n+lag];
++ }
++ r[lag] = sum;
++ }
++}
++
++
++
++/*----------------------------------------------------------------*
++ * window multiplication
++ *---------------------------------------------------------------*/
++
++void window(
++ float *z, /* (o) the windowed data */
++ const float *x, /* (i) the original data vector */
++ const float *y, /* (i) the window */
++ int N /* (i) length of all vectors */
++){
++ int i;
++
++ for (i = 0; i < N; i++) {
++ z[i] = x[i] * y[i];
++ }
++}
++
++/*----------------------------------------------------------------*
++ * levinson-durbin solution for lpc coefficients
++ *---------------------------------------------------------------*/
++
++void levdurb(
++ float *a, /* (o) lpc coefficient vector starting
++ with 1.0 */
++ float *k, /* (o) reflection coefficients */
++ float *r, /* (i) autocorrelation vector */
++ int order /* (i) order of lpc filter */
++){
++ float sum, alpha;
++ int m, m_h, i;
++
++ a[0] = 1.0;
++
++ if (r[0] < EPS) { /* if r[0] <= 0, set LPC coeff. to zero */
++ for (i = 0; i < order; i++) {
++ k[i] = 0;
++ a[i+1] = 0;
++ }
++ } else {
++ a[1] = k[0] = -r[1]/r[0];
++ alpha = r[0] + r[1] * k[0];
++ for (m = 1; m < order; m++){
++ sum = r[m + 1];
++ for (i = 0; i < m; i++){
++ sum += a[i+1] * r[m - i];
++ }
++ k[m] = -sum / alpha;
++ alpha += k[m] * sum;
++ m_h = (m + 1) >> 1;
++ for (i = 0; i < m_h; i++){
++ sum = a[i+1] + k[m] * a[m - i];
++ a[m - i] += k[m] * a[i+1];
++ a[i+1] = sum;
++
++
++ }
++ a[m+1] = k[m];
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++ * interpolation between vectors
++ *---------------------------------------------------------------*/
++
++void interpolate(
++ float *out, /* (o) the interpolated vector */
++ float *in1, /* (i) the first vector for the
++ interpolation */
++ float *in2, /* (i) the second vector for the
++ interpolation */
++ float coef, /* (i) interpolation weights */
++ int length /* (i) length of all vectors */
++){
++ int i;
++ float invcoef;
++
++ invcoef = (float)1.0 - coef;
++ for (i = 0; i < length; i++) {
++ out[i] = coef * in1[i] + invcoef * in2[i];
++ }
++}
++
++/*----------------------------------------------------------------*
++ * lpc bandwidth expansion
++ *---------------------------------------------------------------*/
++
++void bwexpand(
++ float *out, /* (o) the bandwidth expanded lpc
++ coefficients */
++ float *in, /* (i) the lpc coefficients before bandwidth
++ expansion */
++ float coef, /* (i) the bandwidth expansion factor */
++ int length /* (i) the length of lpc coefficient vectors */
++){
++ int i;
++ float chirp;
++
++ chirp = coef;
++
++ out[0] = in[0];
++ for (i = 1; i < length; i++) {
++ out[i] = chirp * in[i];
++ chirp *= coef;
++ }
++}
++
++/*----------------------------------------------------------------*
++ * vector quantization
++
++
++ *---------------------------------------------------------------*/
++
++void vq(
++ float *Xq, /* (o) the quantized vector */
++ int *index, /* (o) the quantization index */
++ const float *CB,/* (i) the vector quantization codebook */
++ float *X, /* (i) the vector to quantize */
++ int n_cb, /* (i) the number of vectors in the codebook */
++ int dim /* (i) the dimension of all vectors */
++){
++ int i, j;
++ int pos, minindex;
++ float dist, tmp, mindist;
++
++ pos = 0;
++ mindist = FLOAT_MAX;
++ minindex = 0;
++ for (j = 0; j < n_cb; j++) {
++ dist = X[0] - CB[pos];
++ dist *= dist;
++ for (i = 1; i < dim; i++) {
++ tmp = X[i] - CB[pos + i];
++ dist += tmp*tmp;
++ }
++
++ if (dist < mindist) {
++ mindist = dist;
++ minindex = j;
++ }
++ pos += dim;
++ }
++ for (i = 0; i < dim; i++) {
++ Xq[i] = CB[minindex*dim + i];
++ }
++ *index = minindex;
++}
++
++/*----------------------------------------------------------------*
++ * split vector quantization
++ *---------------------------------------------------------------*/
++
++void SplitVQ(
++ float *qX, /* (o) the quantized vector */
++ int *index, /* (o) a vector of indexes for all vector
++ codebooks in the split */
++ float *X, /* (i) the vector to quantize */
++ const float *CB,/* (i) the quantizer codebook */
++ int nsplit, /* the number of vector splits */
++ const int *dim, /* the dimension of X and qX */
++ const int *cbsize /* the number of vectors in the codebook */
++){
++ int cb_pos, X_pos, i;
++
++ cb_pos = 0;
++
++
++ X_pos= 0;
++ for (i = 0; i < nsplit; i++) {
++ vq(qX + X_pos, index + i, CB + cb_pos, X + X_pos,
++ cbsize[i], dim[i]);
++ X_pos += dim[i];
++ cb_pos += dim[i] * cbsize[i];
++ }
++}
++
++/*----------------------------------------------------------------*
++ * scalar quantization
++ *---------------------------------------------------------------*/
++
++void sort_sq(
++ float *xq, /* (o) the quantized value */
++ int *index, /* (o) the quantization index */
++ float x, /* (i) the value to quantize */
++ const float *cb,/* (i) the quantization codebook */
++ int cb_size /* (i) the size of the quantization codebook */
++){
++ int i;
++
++ if (x <= cb[0]) {
++ *index = 0;
++ *xq = cb[0];
++ } else {
++ i = 0;
++ while ((x > cb[i]) && i < cb_size - 1) {
++ i++;
++ }
++
++ if (x > ((cb[i] + cb[i - 1])/2)) {
++ *index = i;
++ *xq = cb[i];
++ } else {
++ *index = i - 1;
++ *xq = cb[i - 1];
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++ * check for stability of lsf coefficients
++ *---------------------------------------------------------------*/
++
++int LSF_check( /* (o) 1 for stable lsf vectors and 0 for
++ nonstable ones */
++ float *lsf, /* (i) a table of lsf vectors */
++ int dim, /* (i) the dimension of each lsf vector */
++ int NoAn /* (i) the number of lsf vectors in the
++ table */
++){
++ int k,n,m, Nit=2, change=0,pos;
++ float tmp;
++
++
++ static float eps=(float)0.039; /* 50 Hz */
++ static float eps2=(float)0.0195;
++ static float maxlsf=(float)3.14; /* 4000 Hz */
++ static float minlsf=(float)0.01; /* 0 Hz */
++
++ /* LSF separation check*/
++
++ for (n=0; n<Nit; n++) { /* Run through a couple of times */
++ for (m=0; m<NoAn; m++) { /* Number of analyses per frame */
++ for (k=0; k<(dim-1); k++) {
++ pos=m*dim+k;
++
++ if ((lsf[pos+1]-lsf[pos])<eps) {
++
++ if (lsf[pos+1]<lsf[pos]) {
++ tmp=lsf[pos+1];
++ lsf[pos+1]= lsf[pos]+eps2;
++ lsf[pos]= lsf[pos+1]-eps2;
++ } else {
++ lsf[pos]-=eps2;
++ lsf[pos+1]+=eps2;
++ }
++ change=1;
++ }
++
++ if (lsf[pos]<minlsf) {
++ lsf[pos]=minlsf;
++ change=1;
++ }
++
++ if (lsf[pos]>maxlsf) {
++ lsf[pos]=maxlsf;
++ change=1;
++ }
++ }
++ }
++ }
++
++ return change;
++}
++
++
+diff -druN codecs/ilbc/helpfun.h codecs/ilbc/helpfun.h
+--- codecs/ilbc/helpfun.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/helpfun.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,101 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ helpfun.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_HELPFUN_H
++#define __iLBC_HELPFUN_H
++
++void autocorr(
++ float *r, /* (o) autocorrelation vector */
++ const float *x, /* (i) data vector */
++ int N, /* (i) length of data vector */
++ int order /* largest lag for calculated
++ autocorrelations */
++);
++
++void window(
++ float *z, /* (o) the windowed data */
++ const float *x, /* (i) the original data vector */
++ const float *y, /* (i) the window */
++ int N /* (i) length of all vectors */
++);
++
++
++
++void levdurb(
++ float *a, /* (o) lpc coefficient vector starting
++ with 1.0 */
++ float *k, /* (o) reflection coefficients */
++ float *r, /* (i) autocorrelation vector */
++ int order /* (i) order of lpc filter */
++);
++
++void interpolate(
++ float *out, /* (o) the interpolated vector */
++ float *in1, /* (i) the first vector for the
++ interpolation */
++ float *in2, /* (i) the second vector for the
++ interpolation */
++ float coef, /* (i) interpolation weights */
++ int length /* (i) length of all vectors */
++);
++
++void bwexpand(
++ float *out, /* (o) the bandwidth expanded lpc
++ coefficients */
++ float *in, /* (i) the lpc coefficients before bandwidth
++ expansion */
++ float coef, /* (i) the bandwidth expansion factor */
++ int length /* (i) the length of lpc coefficient vectors */
++);
++
++void vq(
++ float *Xq, /* (o) the quantized vector */
++ int *index, /* (o) the quantization index */
++ const float *CB,/* (i) the vector quantization codebook */
++ float *X, /* (i) the vector to quantize */
++ int n_cb, /* (i) the number of vectors in the codebook */
++ int dim /* (i) the dimension of all vectors */
++);
++
++void SplitVQ(
++ float *qX, /* (o) the quantized vector */
++ int *index, /* (o) a vector of indexes for all vector
++ codebooks in the split */
++ float *X, /* (i) the vector to quantize */
++ const float *CB,/* (i) the quantizer codebook */
++ int nsplit, /* the number of vector splits */
++ const int *dim, /* the dimension of X and qX */
++ const int *cbsize /* the number of vectors in the codebook */
++);
++
++
++void sort_sq(
++ float *xq, /* (o) the quantized value */
++ int *index, /* (o) the quantization index */
++ float x, /* (i) the value to quantize */
++ const float *cb,/* (i) the quantization codebook */
++
++
++ int cb_size /* (i) the size of the quantization codebook */
++);
++
++int LSF_check( /* (o) 1 for stable lsf vectors and 0 for
++ nonstable ones */
++ float *lsf, /* (i) a table of lsf vectors */
++ int dim, /* (i) the dimension of each lsf vector */
++ int NoAn /* (i) the number of lsf vectors in the
++ table */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/hpInput.c codecs/ilbc/hpInput.c
+--- codecs/ilbc/hpInput.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/hpInput.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,60 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ hpInput.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include "constants.h"
++#include "hpInput.h"
++
++/*----------------------------------------------------------------*
++ * Input high-pass filter
++ *---------------------------------------------------------------*/
++
++void hpInput(
++ float *In, /* (i) vector to filter */
++ int len, /* (i) length of vector to filter */
++ float *Out, /* (o) the resulting filtered vector */
++ float *mem /* (i/o) the filter state */
++){
++ int i;
++ float *pi, *po;
++
++ /* all-zero section*/
++
++ pi = &In[0];
++ po = &Out[0];
++ for (i=0; i<len; i++) {
++ *po = hpi_zero_coefsTbl[0] * (*pi);
++ *po += hpi_zero_coefsTbl[1] * mem[0];
++ *po += hpi_zero_coefsTbl[2] * mem[1];
++
++ mem[1] = mem[0];
++ mem[0] = *pi;
++ po++;
++
++
++ pi++;
++
++ }
++
++ /* all-pole section*/
++
++ po = &Out[0];
++ for (i=0; i<len; i++) {
++ *po -= hpi_pole_coefsTbl[1] * mem[2];
++ *po -= hpi_pole_coefsTbl[2] * mem[3];
++
++ mem[3] = mem[2];
++ mem[2] = *po;
++ po++;
++ }
++}
++
++
+diff -druN codecs/ilbc/hpInput.h codecs/ilbc/hpInput.h
+--- codecs/ilbc/hpInput.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/hpInput.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,27 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ hpInput.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++
++
++#ifndef __iLBC_HPINPUT_H
++#define __iLBC_HPINPUT_H
++
++void hpInput(
++ float *In, /* (i) vector to filter */
++ int len, /* (i) length of vector to filter */
++ float *Out, /* (o) the resulting filtered vector */
++ float *mem /* (i/o) the filter state */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/hpOutput.c codecs/ilbc/hpOutput.c
+--- codecs/ilbc/hpOutput.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/hpOutput.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,59 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ hpOutput.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++
++
++******************************************************************/
++
++#include "constants.h"
++#include "hpOutput.h"
++/*----------------------------------------------------------------*
++ * Output high-pass filter
++ *---------------------------------------------------------------*/
++
++void hpOutput(
++ float *In, /* (i) vector to filter */
++ int len,/* (i) length of vector to filter */
++ float *Out, /* (o) the resulting filtered vector */
++ float *mem /* (i/o) the filter state */
++){
++ int i;
++ float *pi, *po;
++
++ /* all-zero section*/
++
++ pi = &In[0];
++ po = &Out[0];
++ for (i=0; i<len; i++) {
++ *po = hpo_zero_coefsTbl[0] * (*pi);
++ *po += hpo_zero_coefsTbl[1] * mem[0];
++ *po += hpo_zero_coefsTbl[2] * mem[1];
++
++ mem[1] = mem[0];
++ mem[0] = *pi;
++ po++;
++ pi++;
++
++ }
++
++ /* all-pole section*/
++
++ po = &Out[0];
++ for (i=0; i<len; i++) {
++ *po -= hpo_pole_coefsTbl[1] * mem[2];
++ *po -= hpo_pole_coefsTbl[2] * mem[3];
++
++ mem[3] = mem[2];
++ mem[2] = *po;
++ po++;
++ }
++}
++
++
+diff -druN codecs/ilbc/hpOutput.h codecs/ilbc/hpOutput.h
+--- codecs/ilbc/hpOutput.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/hpOutput.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,25 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ hpOutput.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_HPOUTPUT_H
++#define __iLBC_HPOUTPUT_H
++
++void hpOutput(
++ float *In, /* (i) vector to filter */
++ int len,/* (i) length of vector to filter */
++ float *Out, /* (o) the resulting filtered vector */
++ float *mem /* (i/o) the filter state */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/iCBConstruct.c codecs/ilbc/iCBConstruct.c
+--- codecs/ilbc/iCBConstruct.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iCBConstruct.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,108 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ iCBConstruct.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++
++#include "iLBC_define.h"
++#include "iCBConstruct.h"
++#include "gainquant.h"
++#include "getCBvec.h"
++
++/*----------------------------------------------------------------*
++ * Convert the codebook indexes to make the search easier
++ *---------------------------------------------------------------*/
++
++
++
++void index_conv_enc(
++ int *index /* (i/o) Codebook indexes */
++){
++ int k;
++
++ for (k=1; k<CB_NSTAGES; k++) {
++
++ if ((index[k]>=108)&&(index[k]<172)) {
++ index[k]-=64;
++ } else if (index[k]>=236) {
++ index[k]-=128;
++ } else {
++ /* ERROR */
++ }
++ }
++}
++
++void index_conv_dec(
++ int *index /* (i/o) Codebook indexes */
++){
++ int k;
++
++ for (k=1; k<CB_NSTAGES; k++) {
++
++ if ((index[k]>=44)&&(index[k]<108)) {
++ index[k]+=64;
++ } else if ((index[k]>=108)&&(index[k]<128)) {
++ index[k]+=128;
++ } else {
++ /* ERROR */
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++ * Construct decoded vector from codebook and gains.
++ *---------------------------------------------------------------*/
++
++void iCBConstruct(
++ float *decvector, /* (o) Decoded vector */
++ int *index, /* (i) Codebook indices */
++ int *gain_index,/* (i) Gain quantization indices */
++ float *mem, /* (i) Buffer for codevector construction */
++ int lMem, /* (i) Length of buffer */
++ int veclen, /* (i) Length of vector */
++ int nStages /* (i) Number of codebook stages */
++){
++ int j,k;
++ float gain[CB_NSTAGES];
++ float cbvec[SUBL];
++
++ /* gain de-quantization */
++
++ gain[0] = gaindequant(gain_index[0], 1.0, 32);
++
++
++ if (nStages > 1) {
++ gain[1] = gaindequant(gain_index[1],
++ (float)fabs(gain[0]), 16);
++ }
++ if (nStages > 2) {
++ gain[2] = gaindequant(gain_index[2],
++ (float)fabs(gain[1]), 8);
++ }
++
++ /* codebook vector construction and construction of
++ total vector */
++
++ getCBvec(cbvec, mem, index[0], lMem, veclen);
++ for (j=0;j<veclen;j++){
++ decvector[j] = gain[0]*cbvec[j];
++ }
++ if (nStages > 1) {
++ for (k=1; k<nStages; k++) {
++ getCBvec(cbvec, mem, index[k], lMem, veclen);
++ for (j=0;j<veclen;j++) {
++ decvector[j] += gain[k]*cbvec[j];
++ }
++ }
++ }
++}
++
++
+diff -druN codecs/ilbc/iCBConstruct.h codecs/ilbc/iCBConstruct.h
+--- codecs/ilbc/iCBConstruct.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iCBConstruct.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,38 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++
++
++ iCBConstruct.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_ICBCONSTRUCT_H
++#define __iLBC_ICBCONSTRUCT_H
++
++void index_conv_enc(
++ int *index /* (i/o) Codebook indexes */
++);
++
++void index_conv_dec(
++ int *index /* (i/o) Codebook indexes */
++);
++
++void iCBConstruct(
++ float *decvector, /* (o) Decoded vector */
++ int *index, /* (i) Codebook indices */
++ int *gain_index,/* (i) Gain quantization indices */
++ float *mem, /* (i) Buffer for codevector construction */
++ int lMem, /* (i) Length of buffer */
++ int veclen, /* (i) Length of vector */
++ int nStages /* (i) Number of codebook stages */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/iCBSearch.c codecs/ilbc/iCBSearch.c
+--- codecs/ilbc/iCBSearch.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iCBSearch.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,480 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ iCBSearch.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <string.h>
++
++#include "iLBC_define.h"
++#include "iCBSearch.h"
++#include "gainquant.h"
++#include "createCB.h"
++#include "filter.h"
++#include "constants.h"
++
++/*----------------------------------------------------------------*
++ * Search routine for codebook encoding and gain quantization.
++ *---------------------------------------------------------------*/
++
++void iCBSearch(
++ iLBC_Enc_Inst_t *iLBCenc_inst,
++ /* (i) the encoder state structure */
++ int *index, /* (o) Codebook indices */
++ int *gain_index,/* (o) Gain quantization indices */
++ float *intarget,/* (i) Target vector for encoding */
++ float *mem, /* (i) Buffer for codebook construction */
++ int lMem, /* (i) Length of buffer */
++ int lTarget, /* (i) Length of vector */
++ int nStages, /* (i) Number of codebook stages */
++ float *weightDenum, /* (i) weighting filter coefficients */
++ float *weightState, /* (i) weighting filter state */
++ int block /* (i) the sub-block number */
++){
++ int i, j, icount, stage, best_index, range, counter;
++ float max_measure, gain, measure, crossDot, ftmp;
++ float gains[CB_NSTAGES];
++ float target[SUBL];
++ int base_index, sInd, eInd, base_size;
++ int sIndAug=0, eIndAug=0;
++ float buf[CB_MEML+SUBL+2*LPC_FILTERORDER];
++
++
++ float invenergy[CB_EXPAND*128], energy[CB_EXPAND*128];
++ float *pp, *ppi=0, *ppo=0, *ppe=0;
++ float cbvectors[CB_MEML];
++ float tene, cene, cvec[SUBL];
++ float aug_vec[SUBL];
++
++ memset(cvec,0,SUBL*sizeof(float));
++
++ /* Determine size of codebook sections */
++
++ base_size=lMem-lTarget+1;
++
++ if (lTarget==SUBL) {
++ base_size=lMem-lTarget+1+lTarget/2;
++ }
++
++ /* setup buffer for weighting */
++
++ memcpy(buf,weightState,sizeof(float)*LPC_FILTERORDER);
++ memcpy(buf+LPC_FILTERORDER,mem,lMem*sizeof(float));
++ memcpy(buf+LPC_FILTERORDER+lMem,intarget,lTarget*sizeof(float));
++
++ /* weighting */
++
++ AllPoleFilter(buf+LPC_FILTERORDER, weightDenum,
++ lMem+lTarget, LPC_FILTERORDER);
++
++ /* Construct the codebook and target needed */
++
++ memcpy(target, buf+LPC_FILTERORDER+lMem, lTarget*sizeof(float));
++
++ tene=0.0;
++ for (i=0; i<lTarget; i++) {
++ tene+=target[i]*target[i];
++ }
++
++ /* Prepare search over one more codebook section. This section
++ is created by filtering the original buffer with a filter. */
++
++ filteredCBvecs(cbvectors, buf+LPC_FILTERORDER, lMem);
++
++ /* The Main Loop over stages */
++
++ for (stage=0; stage<nStages; stage++) {
++
++ range = search_rangeTbl[block][stage];
++
++ /* initialize search measure */
++
++ max_measure = (float)-10000000.0;
++ gain = (float)0.0;
++ best_index = 0;
++
++ /* Compute cross dot product between the target
++
++
++ and the CB memory */
++
++ crossDot=0.0;
++ pp=buf+LPC_FILTERORDER+lMem-lTarget;
++ for (j=0; j<lTarget; j++) {
++ crossDot += target[j]*(*pp++);
++ }
++
++ if (stage==0) {
++
++ /* Calculate energy in the first block of
++ 'lTarget' sampels. */
++ ppe = energy;
++ ppi = buf+LPC_FILTERORDER+lMem-lTarget-1;
++ ppo = buf+LPC_FILTERORDER+lMem-1;
++
++ *ppe=0.0;
++ pp=buf+LPC_FILTERORDER+lMem-lTarget;
++ for (j=0; j<lTarget; j++) {
++ *ppe+=(*pp)*(*pp);
++ pp++;
++ }
++
++ if (*ppe>0.0) {
++ invenergy[0] = (float) 1.0 / (*ppe + EPS);
++ } else {
++ invenergy[0] = (float) 0.0;
++ }
++ ppe++;
++
++ measure=(float)-10000000.0;
++
++ if (crossDot > 0.0) {
++ measure = crossDot*crossDot*invenergy[0];
++ }
++ }
++ else {
++ measure = crossDot*crossDot*invenergy[0];
++ }
++
++ /* check if measure is better */
++ ftmp = crossDot*invenergy[0];
++
++ if ((measure>max_measure) && (fabs(ftmp)<CB_MAXGAIN)) {
++ best_index = 0;
++ max_measure = measure;
++ gain = ftmp;
++ }
++
++ /* loop over the main first codebook section,
++ full search */
++
++ for (icount=1; icount<range; icount++) {
++
++ /* calculate measure */
++
++
++
++ crossDot=0.0;
++ pp = buf+LPC_FILTERORDER+lMem-lTarget-icount;
++
++ for (j=0; j<lTarget; j++) {
++ crossDot += target[j]*(*pp++);
++ }
++
++ if (stage==0) {
++ *ppe++ = energy[icount-1] + (*ppi)*(*ppi) -
++ (*ppo)*(*ppo);
++ ppo--;
++ ppi--;
++
++ if (energy[icount]>0.0) {
++ invenergy[icount] =
++ (float)1.0/(energy[icount]+EPS);
++ } else {
++ invenergy[icount] = (float) 0.0;
++ }
++
++ measure=(float)-10000000.0;
++
++ if (crossDot > 0.0) {
++ measure = crossDot*crossDot*invenergy[icount];
++ }
++ }
++ else {
++ measure = crossDot*crossDot*invenergy[icount];
++ }
++
++ /* check if measure is better */
++ ftmp = crossDot*invenergy[icount];
++
++ if ((measure>max_measure) && (fabs(ftmp)<CB_MAXGAIN)) {
++ best_index = icount;
++ max_measure = measure;
++ gain = ftmp;
++ }
++ }
++
++ /* Loop over augmented part in the first codebook
++ * section, full search.
++ * The vectors are interpolated.
++ */
++
++ if (lTarget==SUBL) {
++
++ /* Search for best possible cb vector and
++ compute the CB-vectors' energy. */
++ searchAugmentedCB(20, 39, stage, base_size-lTarget/2,
++ target, buf+LPC_FILTERORDER+lMem,
++ &max_measure, &best_index, &gain, energy,
++ invenergy);
++
++
++ }
++
++ /* set search range for following codebook sections */
++
++ base_index=best_index;
++
++ /* unrestricted search */
++
++ if (CB_RESRANGE == -1) {
++ sInd=0;
++ eInd=range-1;
++ sIndAug=20;
++ eIndAug=39;
++ }
++
++ /* restriced search around best index from first
++ codebook section */
++
++ else {
++ /* Initialize search indices */
++ sIndAug=0;
++ eIndAug=0;
++ sInd=base_index-CB_RESRANGE/2;
++ eInd=sInd+CB_RESRANGE;
++
++ if (lTarget==SUBL) {
++
++ if (sInd<0) {
++
++ sIndAug = 40 + sInd;
++ eIndAug = 39;
++ sInd=0;
++
++ } else if ( base_index < (base_size-20) ) {
++
++ if (eInd > range) {
++ sInd -= (eInd-range);
++ eInd = range;
++ }
++ } else { /* base_index >= (base_size-20) */
++
++ if (sInd < (base_size-20)) {
++ sIndAug = 20;
++ sInd = 0;
++ eInd = 0;
++ eIndAug = 19 + CB_RESRANGE;
++
++ if(eIndAug > 39) {
++ eInd = eIndAug-39;
++ eIndAug = 39;
++ }
++ } else {
++ sIndAug = 20 + sInd - (base_size-20);
++ eIndAug = 39;
++
++
++ sInd = 0;
++ eInd = CB_RESRANGE - (eIndAug-sIndAug+1);
++ }
++ }
++
++ } else { /* lTarget = 22 or 23 */
++
++ if (sInd < 0) {
++ eInd -= sInd;
++ sInd = 0;
++ }
++
++ if(eInd > range) {
++ sInd -= (eInd - range);
++ eInd = range;
++ }
++ }
++ }
++
++ /* search of higher codebook section */
++
++ /* index search range */
++ counter = sInd;
++ sInd += base_size;
++ eInd += base_size;
++
++
++ if (stage==0) {
++ ppe = energy+base_size;
++ *ppe=0.0;
++
++ pp=cbvectors+lMem-lTarget;
++ for (j=0; j<lTarget; j++) {
++ *ppe+=(*pp)*(*pp);
++ pp++;
++ }
++
++ ppi = cbvectors + lMem - 1 - lTarget;
++ ppo = cbvectors + lMem - 1;
++
++ for (j=0; j<(range-1); j++) {
++ *(ppe+1) = *ppe + (*ppi)*(*ppi) - (*ppo)*(*ppo);
++ ppo--;
++ ppi--;
++ ppe++;
++ }
++ }
++
++ /* loop over search range */
++
++ for (icount=sInd; icount<eInd; icount++) {
++
++ /* calculate measure */
++
++ crossDot=0.0;
++
++
++ pp=cbvectors + lMem - (counter++) - lTarget;
++
++ for (j=0;j<lTarget;j++) {
++ crossDot += target[j]*(*pp++);
++ }
++
++ if (energy[icount]>0.0) {
++ invenergy[icount] =(float)1.0/(energy[icount]+EPS);
++ } else {
++ invenergy[icount] =(float)0.0;
++ }
++
++ if (stage==0) {
++
++ measure=(float)-10000000.0;
++
++ if (crossDot > 0.0) {
++ measure = crossDot*crossDot*
++ invenergy[icount];
++ }
++ }
++ else {
++ measure = crossDot*crossDot*invenergy[icount];
++ }
++
++ /* check if measure is better */
++ ftmp = crossDot*invenergy[icount];
++
++ if ((measure>max_measure) && (fabs(ftmp)<CB_MAXGAIN)) {
++ best_index = icount;
++ max_measure = measure;
++ gain = ftmp;
++ }
++ }
++
++ /* Search the augmented CB inside the limited range. */
++
++ if ((lTarget==SUBL)&&(sIndAug!=0)) {
++ searchAugmentedCB(sIndAug, eIndAug, stage,
++ 2*base_size-20, target, cbvectors+lMem,
++ &max_measure, &best_index, &gain, energy,
++ invenergy);
++ }
++
++ /* record best index */
++
++ index[stage] = best_index;
++
++ /* gain quantization */
++
++ if (stage==0){
++
++ if (gain<0.0){
++ gain = 0.0;
++
++
++ }
++
++ if (gain>CB_MAXGAIN) {
++ gain = (float)CB_MAXGAIN;
++ }
++ gain = gainquant(gain, 1.0, 32, &gain_index[stage]);
++ }
++ else {
++ if (stage==1) {
++ gain = gainquant(gain, (float)fabs(gains[stage-1]),
++ 16, &gain_index[stage]);
++ } else {
++ gain = gainquant(gain, (float)fabs(gains[stage-1]),
++ 8, &gain_index[stage]);
++ }
++ }
++
++ /* Extract the best (according to measure)
++ codebook vector */
++
++ if (lTarget==(STATE_LEN-iLBCenc_inst->state_short_len)) {
++
++ if (index[stage]<base_size) {
++ pp=buf+LPC_FILTERORDER+lMem-lTarget-index[stage];
++ } else {
++ pp=cbvectors+lMem-lTarget-
++ index[stage]+base_size;
++ }
++ } else {
++
++ if (index[stage]<base_size) {
++ if (index[stage]<(base_size-20)) {
++ pp=buf+LPC_FILTERORDER+lMem-
++ lTarget-index[stage];
++ } else {
++ createAugmentedVec(index[stage]-base_size+40,
++ buf+LPC_FILTERORDER+lMem,aug_vec);
++ pp=aug_vec;
++ }
++ } else {
++ int filterno, position;
++
++ filterno=index[stage]/base_size;
++ position=index[stage]-filterno*base_size;
++
++
++ if (position<(base_size-20)) {
++ pp=cbvectors+filterno*lMem-lTarget-
++ index[stage]+filterno*base_size;
++ } else {
++ createAugmentedVec(
++ index[stage]-(filterno+1)*base_size+40,
++ cbvectors+filterno*lMem,aug_vec);
++ pp=aug_vec;
++
++
++ }
++ }
++ }
++
++ /* Subtract the best codebook vector, according
++ to measure, from the target vector */
++
++ for (j=0;j<lTarget;j++) {
++ cvec[j] += gain*(*pp);
++ target[j] -= gain*(*pp++);
++ }
++
++ /* record quantized gain */
++
++ gains[stage]=gain;
++
++ }/* end of Main Loop. for (stage=0;... */
++
++ /* Gain adjustment for energy matching */
++ cene=0.0;
++ for (i=0; i<lTarget; i++) {
++ cene+=cvec[i]*cvec[i];
++ }
++ j=gain_index[0];
++
++ for (i=gain_index[0]; i<32; i++) {
++ ftmp=cene*gain_sq5Tbl[i]*gain_sq5Tbl[i];
++
++ if ((ftmp<(tene*gains[0]*gains[0])) &&
++ (gain_sq5Tbl[j]<(2.0*gains[0]))) {
++ j=i;
++ }
++ }
++ gain_index[0]=j;
++}
++
++
+diff -druN codecs/ilbc/iCBSearch.h codecs/ilbc/iCBSearch.h
+--- codecs/ilbc/iCBSearch.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iCBSearch.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,35 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ iCBSearch.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_ICBSEARCH_H
++#define __iLBC_ICBSEARCH_H
++
++void iCBSearch(
++ iLBC_Enc_Inst_t *iLBCenc_inst,
++ /* (i) the encoder state structure */
++ int *index, /* (o) Codebook indices */
++ int *gain_index,/* (o) Gain quantization indices */
++ float *intarget,/* (i) Target vector for encoding */
++ float *mem, /* (i) Buffer for codebook construction */
++ int lMem, /* (i) Length of buffer */
++ int lTarget, /* (i) Length of vector */
++ int nStages, /* (i) Number of codebook stages */
++ float *weightDenum, /* (i) weighting filter coefficients */
++
++
++ float *weightState, /* (i) weighting filter state */
++ int block /* (i) the sub-block number */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/iLBC_decode.c codecs/ilbc/iLBC_decode.c
+--- codecs/ilbc/iLBC_decode.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iLBC_decode.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,619 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ iLBC_decode.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <stdlib.h>
++
++#include "iLBC_define.h"
++#include "iLBC_decode.h"
++#include "StateConstructW.h"
++#include "LPCdecode.h"
++#include "iCBConstruct.h"
++#include "doCPLC.h"
++#include "helpfun.h"
++#include "constants.h"
++#include "packing.h"
++#include "string.h"
++#include "enhancer.h"
++#include "hpOutput.h"
++#include "syntFilter.h"
++
++/*----------------------------------------------------------------*
++ * Initiation of decoder instance.
++ *---------------------------------------------------------------*/
++
++short initDecode( /* (o) Number of decoded
++ samples */
++ iLBC_Dec_Inst_t *iLBCdec_inst, /* (i/o) Decoder instance */
++ int mode, /* (i) frame size mode */
++ int use_enhancer /* (i) 1 to use enhancer
++ 0 to run without
++ enhancer */
++){
++ int i;
++
++ iLBCdec_inst->mode = mode;
++
++ if (mode==30) {
++ iLBCdec_inst->blockl = BLOCKL_30MS;
++ iLBCdec_inst->nsub = NSUB_30MS;
++ iLBCdec_inst->nasub = NASUB_30MS;
++ iLBCdec_inst->lpc_n = LPC_N_30MS;
++
++
++ iLBCdec_inst->no_of_bytes = NO_OF_BYTES_30MS;
++ iLBCdec_inst->no_of_words = NO_OF_WORDS_30MS;
++ iLBCdec_inst->state_short_len=STATE_SHORT_LEN_30MS;
++ /* ULP init */
++ iLBCdec_inst->ULP_inst=&ULP_30msTbl;
++ }
++ else if (mode==20) {
++ iLBCdec_inst->blockl = BLOCKL_20MS;
++ iLBCdec_inst->nsub = NSUB_20MS;
++ iLBCdec_inst->nasub = NASUB_20MS;
++ iLBCdec_inst->lpc_n = LPC_N_20MS;
++ iLBCdec_inst->no_of_bytes = NO_OF_BYTES_20MS;
++ iLBCdec_inst->no_of_words = NO_OF_WORDS_20MS;
++ iLBCdec_inst->state_short_len=STATE_SHORT_LEN_20MS;
++ /* ULP init */
++ iLBCdec_inst->ULP_inst=&ULP_20msTbl;
++ }
++ else {
++ exit(2);
++ }
++
++ memset(iLBCdec_inst->syntMem, 0,
++ LPC_FILTERORDER*sizeof(float));
++ memcpy((*iLBCdec_inst).lsfdeqold, lsfmeanTbl,
++ LPC_FILTERORDER*sizeof(float));
++
++ memset(iLBCdec_inst->old_syntdenum, 0,
++ ((LPC_FILTERORDER + 1)*NSUB_MAX)*sizeof(float));
++ for (i=0; i<NSUB_MAX; i++)
++ iLBCdec_inst->old_syntdenum[i*(LPC_FILTERORDER+1)]=1.0;
++
++ iLBCdec_inst->last_lag = 20;
++
++ iLBCdec_inst->prevLag = 120;
++ iLBCdec_inst->per = 0.0;
++ iLBCdec_inst->consPLICount = 0;
++ iLBCdec_inst->prevPLI = 0;
++ iLBCdec_inst->prevLpc[0] = 1.0;
++ memset(iLBCdec_inst->prevLpc+1,0,
++ LPC_FILTERORDER*sizeof(float));
++ memset(iLBCdec_inst->prevResidual, 0, BLOCKL_MAX*sizeof(float));
++ iLBCdec_inst->seed=777;
++
++ memset(iLBCdec_inst->hpomem, 0, 4*sizeof(float));
++
++ iLBCdec_inst->use_enhancer = use_enhancer;
++ memset(iLBCdec_inst->enh_buf, 0, ENH_BUFL*sizeof(float));
++ for (i=0;i<ENH_NBLOCKS_TOT;i++)
++ iLBCdec_inst->enh_period[i]=(float)40.0;
++
++ iLBCdec_inst->prev_enh_pl = 0;
++
++ return (iLBCdec_inst->blockl);
++}
++
++
++
++/*----------------------------------------------------------------*
++ * frame residual decoder function (subrutine to iLBC_decode)
++ *---------------------------------------------------------------*/
++
++static void Decode(
++ iLBC_Dec_Inst_t *iLBCdec_inst, /* (i/o) the decoder state
++ structure */
++ float *decresidual, /* (o) decoded residual frame */
++ int start, /* (i) location of start
++ state */
++ int idxForMax, /* (i) codebook index for the
++ maximum value */
++ int *idxVec, /* (i) codebook indexes for the
++ samples in the start
++ state */
++ float *syntdenum, /* (i) the decoded synthesis
++ filter coefficients */
++ int *cb_index, /* (i) the indexes for the
++ adaptive codebook */
++ int *gain_index, /* (i) the indexes for the
++ corresponding gains */
++ int *extra_cb_index, /* (i) the indexes for the
++ adaptive codebook part
++ of start state */
++ int *extra_gain_index, /* (i) the indexes for the
++ corresponding gains */
++ int state_first /* (i) 1 if non adaptive part
++ of start state comes
++ first 0 if that part
++ comes last */
++){
++ float reverseDecresidual[BLOCKL_MAX], mem[CB_MEML];
++ int k, meml_gotten, Nfor, Nback, i;
++ int diff, start_pos;
++ int subcount, subframe;
++
++ diff = STATE_LEN - iLBCdec_inst->state_short_len;
++
++ if (state_first == 1) {
++ start_pos = (start-1)*SUBL;
++ } else {
++ start_pos = (start-1)*SUBL + diff;
++ }
++
++ /* decode scalar part of start state */
++
++ StateConstructW(idxForMax, idxVec,
++ &syntdenum[(start-1)*(LPC_FILTERORDER+1)],
++ &decresidual[start_pos], iLBCdec_inst->state_short_len);
++
++
++ if (state_first) { /* put adaptive part in the end */
++
++
++
++ /* setup memory */
++
++ memset(mem, 0,
++ (CB_MEML-iLBCdec_inst->state_short_len)*sizeof(float));
++ memcpy(mem+CB_MEML-iLBCdec_inst->state_short_len,
++ decresidual+start_pos,
++ iLBCdec_inst->state_short_len*sizeof(float));
++
++ /* construct decoded vector */
++
++ iCBConstruct(
++ &decresidual[start_pos+iLBCdec_inst->state_short_len],
++ extra_cb_index, extra_gain_index, mem+CB_MEML-stMemLTbl,
++ stMemLTbl, diff, CB_NSTAGES);
++
++ }
++ else {/* put adaptive part in the beginning */
++
++ /* create reversed vectors for prediction */
++
++ for (k=0; k<diff; k++) {
++ reverseDecresidual[k] =
++ decresidual[(start+1)*SUBL-1-
++ (k+iLBCdec_inst->state_short_len)];
++ }
++
++ /* setup memory */
++
++ meml_gotten = iLBCdec_inst->state_short_len;
++ for (k=0; k<meml_gotten; k++){
++ mem[CB_MEML-1-k] = decresidual[start_pos + k];
++ }
++ memset(mem, 0, (CB_MEML-k)*sizeof(float));
++
++ /* construct decoded vector */
++
++ iCBConstruct(reverseDecresidual, extra_cb_index,
++ extra_gain_index, mem+CB_MEML-stMemLTbl, stMemLTbl,
++ diff, CB_NSTAGES);
++
++ /* get decoded residual from reversed vector */
++
++ for (k=0; k<diff; k++) {
++ decresidual[start_pos-1-k] = reverseDecresidual[k];
++ }
++ }
++
++ /* counter for predicted sub-frames */
++
++ subcount=0;
++
++ /* forward prediction of sub-frames */
++
++ Nfor = iLBCdec_inst->nsub-start-1;
++
++
++
++ if ( Nfor > 0 ){
++
++ /* setup memory */
++
++ memset(mem, 0, (CB_MEML-STATE_LEN)*sizeof(float));
++ memcpy(mem+CB_MEML-STATE_LEN, decresidual+(start-1)*SUBL,
++ STATE_LEN*sizeof(float));
++
++ /* loop over sub-frames to encode */
++
++ for (subframe=0; subframe<Nfor; subframe++) {
++
++ /* construct decoded vector */
++
++ iCBConstruct(&decresidual[(start+1+subframe)*SUBL],
++ cb_index+subcount*CB_NSTAGES,
++ gain_index+subcount*CB_NSTAGES,
++ mem+CB_MEML-memLfTbl[subcount],
++ memLfTbl[subcount], SUBL, CB_NSTAGES);
++
++ /* update memory */
++
++ memmove(mem, mem+SUBL, (CB_MEML-SUBL)*sizeof(float));
++ memcpy(mem+CB_MEML-SUBL,
++ &decresidual[(start+1+subframe)*SUBL],
++ SUBL*sizeof(float));
++
++ subcount++;
++
++ }
++
++ }
++
++ /* backward prediction of sub-frames */
++
++ Nback = start-1;
++
++ if ( Nback > 0 ) {
++
++ /* setup memory */
++
++ meml_gotten = SUBL*(iLBCdec_inst->nsub+1-start);
++
++ if ( meml_gotten > CB_MEML ) {
++ meml_gotten=CB_MEML;
++ }
++ for (k=0; k<meml_gotten; k++) {
++ mem[CB_MEML-1-k] = decresidual[(start-1)*SUBL + k];
++ }
++ memset(mem, 0, (CB_MEML-k)*sizeof(float));
++
++ /* loop over subframes to decode */
++
++
++
++ for (subframe=0; subframe<Nback; subframe++) {
++
++ /* construct decoded vector */
++
++ iCBConstruct(&reverseDecresidual[subframe*SUBL],
++ cb_index+subcount*CB_NSTAGES,
++ gain_index+subcount*CB_NSTAGES,
++ mem+CB_MEML-memLfTbl[subcount], memLfTbl[subcount],
++ SUBL, CB_NSTAGES);
++
++ /* update memory */
++
++ memmove(mem, mem+SUBL, (CB_MEML-SUBL)*sizeof(float));
++ memcpy(mem+CB_MEML-SUBL,
++ &reverseDecresidual[subframe*SUBL],
++ SUBL*sizeof(float));
++
++ subcount++;
++ }
++
++ /* get decoded residual from reversed vector */
++
++ for (i=0; i<SUBL*Nback; i++)
++ decresidual[SUBL*Nback - i - 1] =
++ reverseDecresidual[i];
++ }
++}
++
++/*----------------------------------------------------------------*
++ * main decoder function
++ *---------------------------------------------------------------*/
++
++void iLBC_decode(
++ float *decblock, /* (o) decoded signal block */
++ unsigned char *bytes, /* (i) encoded signal bits */
++ iLBC_Dec_Inst_t *iLBCdec_inst, /* (i/o) the decoder state
++ structure */
++ int mode /* (i) 0: bad packet, PLC,
++ 1: normal */
++){
++ float data[BLOCKL_MAX];
++ float lsfdeq[LPC_FILTERORDER*LPC_N_MAX];
++ float PLCresidual[BLOCKL_MAX], PLClpc[LPC_FILTERORDER + 1];
++ float zeros[BLOCKL_MAX], one[LPC_FILTERORDER + 1];
++ int k, i, start, idxForMax, pos, lastpart, ulp;
++ int lag, ilag;
++ float cc, maxcc;
++ int idxVec[STATE_LEN];
++ int check;
++ int gain_index[NASUB_MAX*CB_NSTAGES],
++ extra_gain_index[CB_NSTAGES];
++ int cb_index[CB_NSTAGES*NASUB_MAX], extra_cb_index[CB_NSTAGES];
++ int lsf_i[LSF_NSPLIT*LPC_N_MAX];
++ int state_first;
++
++
++ int last_bit;
++ unsigned char *pbytes;
++ float weightdenum[(LPC_FILTERORDER + 1)*NSUB_MAX];
++ int order_plus_one;
++ float syntdenum[NSUB_MAX*(LPC_FILTERORDER+1)];
++ float decresidual[BLOCKL_MAX];
++
++ if (mode>0) { /* the data are good */
++
++ /* decode data */
++
++ pbytes=bytes;
++ pos=0;
++
++ /* Set everything to zero before decoding */
++
++ for (k=0; k<LSF_NSPLIT*LPC_N_MAX; k++) {
++ lsf_i[k]=0;
++ }
++ start=0;
++ state_first=0;
++ idxForMax=0;
++ for (k=0; k<iLBCdec_inst->state_short_len; k++) {
++ idxVec[k]=0;
++ }
++ for (k=0; k<CB_NSTAGES; k++) {
++ extra_cb_index[k]=0;
++ }
++ for (k=0; k<CB_NSTAGES; k++) {
++ extra_gain_index[k]=0;
++ }
++ for (i=0; i<iLBCdec_inst->nasub; i++) {
++ for (k=0; k<CB_NSTAGES; k++) {
++ cb_index[i*CB_NSTAGES+k]=0;
++ }
++ }
++ for (i=0; i<iLBCdec_inst->nasub; i++) {
++ for (k=0; k<CB_NSTAGES; k++) {
++ gain_index[i*CB_NSTAGES+k]=0;
++ }
++ }
++
++ /* loop over ULP classes */
++
++ for (ulp=0; ulp<3; ulp++) {
++
++ /* LSF */
++ for (k=0; k<LSF_NSPLIT*iLBCdec_inst->lpc_n; k++){
++ unpack( &pbytes, &lastpart,
++ iLBCdec_inst->ULP_inst->lsf_bits[k][ulp], &pos);
++ packcombine(&lsf_i[k], lastpart,
++ iLBCdec_inst->ULP_inst->lsf_bits[k][ulp]);
++ }
++
++
++
++ /* Start block info */
++
++ unpack( &pbytes, &lastpart,
++ iLBCdec_inst->ULP_inst->start_bits[ulp], &pos);
++ packcombine(&start, lastpart,
++ iLBCdec_inst->ULP_inst->start_bits[ulp]);
++
++ unpack( &pbytes, &lastpart,
++ iLBCdec_inst->ULP_inst->startfirst_bits[ulp], &pos);
++ packcombine(&state_first, lastpart,
++ iLBCdec_inst->ULP_inst->startfirst_bits[ulp]);
++
++ unpack( &pbytes, &lastpart,
++ iLBCdec_inst->ULP_inst->scale_bits[ulp], &pos);
++ packcombine(&idxForMax, lastpart,
++ iLBCdec_inst->ULP_inst->scale_bits[ulp]);
++
++ for (k=0; k<iLBCdec_inst->state_short_len; k++) {
++ unpack( &pbytes, &lastpart,
++ iLBCdec_inst->ULP_inst->state_bits[ulp], &pos);
++ packcombine(idxVec+k, lastpart,
++ iLBCdec_inst->ULP_inst->state_bits[ulp]);
++ }
++
++ /* 23/22 (20ms/30ms) sample block */
++
++ for (k=0; k<CB_NSTAGES; k++) {
++ unpack( &pbytes, &lastpart,
++ iLBCdec_inst->ULP_inst->extra_cb_index[k][ulp],
++ &pos);
++ packcombine(extra_cb_index+k, lastpart,
++ iLBCdec_inst->ULP_inst->extra_cb_index[k][ulp]);
++ }
++ for (k=0; k<CB_NSTAGES; k++) {
++ unpack( &pbytes, &lastpart,
++ iLBCdec_inst->ULP_inst->extra_cb_gain[k][ulp],
++ &pos);
++ packcombine(extra_gain_index+k, lastpart,
++ iLBCdec_inst->ULP_inst->extra_cb_gain[k][ulp]);
++ }
++
++ /* The two/four (20ms/30ms) 40 sample sub-blocks */
++
++ for (i=0; i<iLBCdec_inst->nasub; i++) {
++ for (k=0; k<CB_NSTAGES; k++) {
++ unpack( &pbytes, &lastpart,
++ iLBCdec_inst->ULP_inst->cb_index[i][k][ulp],
++ &pos);
++ packcombine(cb_index+i*CB_NSTAGES+k, lastpart,
++ iLBCdec_inst->ULP_inst->cb_index[i][k][ulp]);
++ }
++ }
++
++ for (i=0; i<iLBCdec_inst->nasub; i++) {
++
++
++ for (k=0; k<CB_NSTAGES; k++) {
++ unpack( &pbytes, &lastpart,
++
++ iLBCdec_inst->ULP_inst->cb_gain[i][k][ulp],
++ &pos);
++ packcombine(gain_index+i*CB_NSTAGES+k, lastpart,
++ iLBCdec_inst->ULP_inst->cb_gain[i][k][ulp]);
++ }
++ }
++ }
++ /* Extract last bit. If it is 1 this indicates an
++ empty/lost frame */
++ unpack( &pbytes, &last_bit, 1, &pos);
++
++ /* Check for bit errors or empty/lost frames */
++ if (start<1)
++ mode = 0;
++ if (iLBCdec_inst->mode==20 && start>3)
++ mode = 0;
++ if (iLBCdec_inst->mode==30 && start>5)
++ mode = 0;
++ if (last_bit==1)
++ mode = 0;
++
++ if (mode==1) { /* No bit errors was detected,
++ continue decoding */
++
++ /* adjust index */
++ index_conv_dec(cb_index);
++
++ /* decode the lsf */
++
++ SimplelsfDEQ(lsfdeq, lsf_i, iLBCdec_inst->lpc_n);
++ check=LSF_check(lsfdeq, LPC_FILTERORDER,
++ iLBCdec_inst->lpc_n);
++ DecoderInterpolateLSF(syntdenum, weightdenum,
++ lsfdeq, LPC_FILTERORDER, iLBCdec_inst);
++
++ Decode(iLBCdec_inst, decresidual, start, idxForMax,
++ idxVec, syntdenum, cb_index, gain_index,
++ extra_cb_index, extra_gain_index,
++ state_first);
++
++ /* preparing the plc for a future loss! */
++
++ doThePLC(PLCresidual, PLClpc, 0, decresidual,
++ syntdenum +
++ (LPC_FILTERORDER + 1)*(iLBCdec_inst->nsub - 1),
++ (*iLBCdec_inst).last_lag, iLBCdec_inst);
++
++
++ memcpy(decresidual, PLCresidual,
++ iLBCdec_inst->blockl*sizeof(float));
++ }
++
++
++
++ }
++
++ if (mode == 0) {
++ /* the data is bad (either a PLC call
++ * was made or a severe bit error was detected)
++ */
++
++ /* packet loss conceal */
++
++ memset(zeros, 0, BLOCKL_MAX*sizeof(float));
++
++ one[0] = 1;
++ memset(one+1, 0, LPC_FILTERORDER*sizeof(float));
++
++ start=0;
++
++ doThePLC(PLCresidual, PLClpc, 1, zeros, one,
++ (*iLBCdec_inst).last_lag, iLBCdec_inst);
++ memcpy(decresidual, PLCresidual,
++ iLBCdec_inst->blockl*sizeof(float));
++
++ order_plus_one = LPC_FILTERORDER + 1;
++ for (i = 0; i < iLBCdec_inst->nsub; i++) {
++ memcpy(syntdenum+(i*order_plus_one), PLClpc,
++ order_plus_one*sizeof(float));
++ }
++ }
++
++ if (iLBCdec_inst->use_enhancer == 1) {
++
++ /* post filtering */
++
++ iLBCdec_inst->last_lag =
++ enhancerInterface(data, decresidual, iLBCdec_inst);
++
++ /* synthesis filtering */
++
++ if (iLBCdec_inst->mode==20) {
++ /* Enhancer has 40 samples delay */
++ i=0;
++ syntFilter(data + i*SUBL,
++ iLBCdec_inst->old_syntdenum +
++ (i+iLBCdec_inst->nsub-1)*(LPC_FILTERORDER+1),
++ SUBL, iLBCdec_inst->syntMem);
++ for (i=1; i < iLBCdec_inst->nsub; i++) {
++ syntFilter(data + i*SUBL,
++ syntdenum + (i-1)*(LPC_FILTERORDER+1),
++ SUBL, iLBCdec_inst->syntMem);
++ }
++ } else if (iLBCdec_inst->mode==30) {
++ /* Enhancer has 80 samples delay */
++ for (i=0; i < 2; i++) {
++ syntFilter(data + i*SUBL,
++
++
++ iLBCdec_inst->old_syntdenum +
++ (i+iLBCdec_inst->nsub-2)*(LPC_FILTERORDER+1),
++ SUBL, iLBCdec_inst->syntMem);
++ }
++ for (i=2; i < iLBCdec_inst->nsub; i++) {
++ syntFilter(data + i*SUBL,
++ syntdenum + (i-2)*(LPC_FILTERORDER+1), SUBL,
++ iLBCdec_inst->syntMem);
++ }
++ }
++
++ } else {
++
++ /* Find last lag */
++ lag = 20;
++ maxcc = xCorrCoef(&decresidual[BLOCKL_MAX-ENH_BLOCKL],
++ &decresidual[BLOCKL_MAX-ENH_BLOCKL-lag], ENH_BLOCKL);
++
++ for (ilag=21; ilag<120; ilag++) {
++ cc = xCorrCoef(&decresidual[BLOCKL_MAX-ENH_BLOCKL],
++ &decresidual[BLOCKL_MAX-ENH_BLOCKL-ilag],
++ ENH_BLOCKL);
++
++ if (cc > maxcc) {
++ maxcc = cc;
++ lag = ilag;
++ }
++ }
++ iLBCdec_inst->last_lag = lag;
++
++ /* copy data and run synthesis filter */
++
++ memcpy(data, decresidual,
++ iLBCdec_inst->blockl*sizeof(float));
++ for (i=0; i < iLBCdec_inst->nsub; i++) {
++ syntFilter(data + i*SUBL,
++ syntdenum + i*(LPC_FILTERORDER+1), SUBL,
++ iLBCdec_inst->syntMem);
++ }
++ }
++
++ /* high pass filtering on output if desired, otherwise
++ copy to out */
++
++ hpOutput(data, iLBCdec_inst->blockl,
++ decblock,iLBCdec_inst->hpomem);
++
++ /* memcpy(decblock,data,iLBCdec_inst->blockl*sizeof(float));*/
++
++ memcpy(iLBCdec_inst->old_syntdenum, syntdenum,
++
++ iLBCdec_inst->nsub*(LPC_FILTERORDER+1)*sizeof(float));
++
++ iLBCdec_inst->prev_enh_pl=0;
++
++
++
++ if (mode==0) { /* PLC was used */
++ iLBCdec_inst->prev_enh_pl=1;
++ }
++}
++
++
+diff -druN codecs/ilbc/iLBC_decode.h codecs/ilbc/iLBC_decode.h
+--- codecs/ilbc/iLBC_decode.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iLBC_decode.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,40 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ iLBC_decode.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_ILBCDECODE_H
++#define __iLBC_ILBCDECODE_H
++
++#include "iLBC_define.h"
++
++short initDecode( /* (o) Number of decoded
++ samples */
++ iLBC_Dec_Inst_t *iLBCdec_inst, /* (i/o) Decoder instance */
++ int mode, /* (i) frame size mode */
++ int use_enhancer /* (i) 1 to use enhancer
++ 0 to run without
++ enhancer */
++);
++
++void iLBC_decode(
++ float *decblock, /* (o) decoded signal block */
++ unsigned char *bytes, /* (i) encoded signal bits */
++ iLBC_Dec_Inst_t *iLBCdec_inst, /* (i/o) the decoder state
++ structure */
++ int mode /* (i) 0: bad packet, PLC,
++ 1: normal */
++);
++
++
++
++#endif
++
++
+diff -druN codecs/ilbc/iLBC_define.h codecs/ilbc/iLBC_define.h
+--- codecs/ilbc/iLBC_define.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iLBC_define.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,201 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ iLBC_define.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++#include <string.h>
++
++#ifndef __iLBC_ILBCDEFINE_H
++#define __iLBC_ILBCDEFINE_H
++
++/* general codec settings */
++
++#define FS (float)8000.0
++#define BLOCKL_20MS 160
++#define BLOCKL_30MS 240
++#define BLOCKL_MAX 240
++#define NSUB_20MS 4
++#define NSUB_30MS 6
++#define NSUB_MAX 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 LPC_FILTERORDER 10
++#define LPC_CHIRP_SYNTDENUM (float)0.9025
++#define LPC_CHIRP_WEIGHTDENUM (float)0.4222
++#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 (float)60.0
++#define LPC_WN (float)1.0001
++#define LSF_NSPLIT 3
++
++#define LSF_NUMBER_OF_STEPS 4
++#define LPC_HALFORDER (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 (float)1.3
++
++/* 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 (BLOCKL_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 (float)0.05
++
++/* Down sampling */
++
++#define FILTERORDER_DS 7
++#define DELAY_DS 3
++#define FACTOR_DS 2
++
++/* bit stream defs */
++
++#define NO_OF_BYTES_20MS 38
++#define NO_OF_BYTES_30MS 50
++#define NO_OF_WORDS_20MS 19
++#define NO_OF_WORDS_30MS 25
++#define STATE_BITS 3
++#define BYTE_LEN 8
++#define ULP_CLASSES 3
++
++/* help parameters */
++
++
++#define FLOAT_MAX (float)1.0e37
++#define EPS (float)2.220446049250313e-016
++#define PI (float)3.14159265358979323846
++#define MIN_SAMPLE -32768
++#define MAX_SAMPLE 32767
++#define TWO_PI (float)6.283185307
++#define PI2 (float)0.159154943
++
++/* type definition encoder instance */
++typedef struct iLBC_ULP_Inst_t_ {
++ int lsf_bits[6][ULP_CLASSES+2];
++ int start_bits[ULP_CLASSES+2];
++ int startfirst_bits[ULP_CLASSES+2];
++ int scale_bits[ULP_CLASSES+2];
++ int state_bits[ULP_CLASSES+2];
++ int extra_cb_index[CB_NSTAGES][ULP_CLASSES+2];
++ int extra_cb_gain[CB_NSTAGES][ULP_CLASSES+2];
++ int cb_index[NSUB_MAX][CB_NSTAGES][ULP_CLASSES+2];
++ int cb_gain[NSUB_MAX][CB_NSTAGES][ULP_CLASSES+2];
++} iLBC_ULP_Inst_t;
++
++/* type definition encoder instance */
++typedef struct iLBC_Enc_Inst_t_ {
++
++ /* flag for frame size mode */
++ int mode;
++
++ /* basic parameters for different frame sizes */
++ int blockl;
++ int nsub;
++ int nasub;
++ int no_of_bytes, no_of_words;
++ int lpc_n;
++ int state_short_len;
++ const iLBC_ULP_Inst_t *ULP_inst;
++
++ /* analysis filter state */
++ float anaMem[LPC_FILTERORDER];
++
++ /* old lsf parameters for interpolation */
++ float lsfold[LPC_FILTERORDER];
++ float lsfdeqold[LPC_FILTERORDER];
++
++ /* signal buffer for LP analysis */
++ float lpc_buffer[LPC_LOOKBACK + BLOCKL_MAX];
++
++ /* state of input HP filter */
++ float hpimem[4];
++
++} iLBC_Enc_Inst_t;
++
++/* type definition decoder instance */
++typedef struct iLBC_Dec_Inst_t_ {
++
++
++ /* flag for frame size mode */
++ int mode;
++
++ /* basic parameters for different frame sizes */
++ int blockl;
++ int nsub;
++ int nasub;
++ int no_of_bytes, no_of_words;
++ int lpc_n;
++ int state_short_len;
++ const iLBC_ULP_Inst_t *ULP_inst;
++
++ /* synthesis filter state */
++ float syntMem[LPC_FILTERORDER];
++
++ /* old LSF for interpolation */
++ float lsfdeqold[LPC_FILTERORDER];
++
++ /* pitch lag estimated in enhancer and used in PLC */
++ int last_lag;
++
++ /* PLC state information */
++ int prevLag, consPLICount, prevPLI, prev_enh_pl;
++ float prevLpc[LPC_FILTERORDER+1];
++ float prevResidual[NSUB_MAX*SUBL];
++ float per;
++ unsigned long seed;
++
++ /* previous synthesis filter parameters */
++ float old_syntdenum[(LPC_FILTERORDER + 1)*NSUB_MAX];
++
++ /* state of output HP filter */
++ float hpomem[4];
++
++ /* enhancer state information */
++ int use_enhancer;
++ float enh_buf[ENH_BUFL];
++ float enh_period[ENH_NBLOCKS_TOT];
++
++} iLBC_Dec_Inst_t;
++
++#endif
++
++
+diff -druN codecs/ilbc/iLBC_encode.c codecs/ilbc/iLBC_encode.c
+--- codecs/ilbc/iLBC_encode.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iLBC_encode.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,514 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ iLBC_encode.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <stdlib.h>
++#include <string.h>
++
++#include "iLBC_define.h"
++#include "iLBC_encode.h"
++#include "LPCencode.h"
++#include "FrameClassify.h"
++#include "StateSearchW.h"
++#include "StateConstructW.h"
++#include "helpfun.h"
++#include "constants.h"
++#include "packing.h"
++#include "iCBSearch.h"
++#include "iCBConstruct.h"
++#include "hpInput.h"
++#include "anaFilter.h"
++#include "syntFilter.h"
++
++/*----------------------------------------------------------------*
++ * Initiation of encoder instance.
++ *---------------------------------------------------------------*/
++
++short initEncode( /* (o) Number of bytes
++ encoded */
++ iLBC_Enc_Inst_t *iLBCenc_inst, /* (i/o) Encoder instance */
++ int mode /* (i) frame size mode */
++){
++ iLBCenc_inst->mode = mode;
++ if (mode==30) {
++ iLBCenc_inst->blockl = BLOCKL_30MS;
++ iLBCenc_inst->nsub = NSUB_30MS;
++
++
++ iLBCenc_inst->nasub = NASUB_30MS;
++ iLBCenc_inst->lpc_n = LPC_N_30MS;
++ iLBCenc_inst->no_of_bytes = NO_OF_BYTES_30MS;
++ iLBCenc_inst->no_of_words = NO_OF_WORDS_30MS;
++ iLBCenc_inst->state_short_len=STATE_SHORT_LEN_30MS;
++ /* ULP init */
++ iLBCenc_inst->ULP_inst=&ULP_30msTbl;
++ }
++ else if (mode==20) {
++ iLBCenc_inst->blockl = BLOCKL_20MS;
++ iLBCenc_inst->nsub = NSUB_20MS;
++ iLBCenc_inst->nasub = NASUB_20MS;
++ iLBCenc_inst->lpc_n = LPC_N_20MS;
++ iLBCenc_inst->no_of_bytes = NO_OF_BYTES_20MS;
++ iLBCenc_inst->no_of_words = NO_OF_WORDS_20MS;
++ iLBCenc_inst->state_short_len=STATE_SHORT_LEN_20MS;
++ /* ULP init */
++ iLBCenc_inst->ULP_inst=&ULP_20msTbl;
++ }
++ else {
++ exit(2);
++ }
++
++ memset((*iLBCenc_inst).anaMem, 0,
++ LPC_FILTERORDER*sizeof(float));
++ memcpy((*iLBCenc_inst).lsfold, lsfmeanTbl,
++ LPC_FILTERORDER*sizeof(float));
++ memcpy((*iLBCenc_inst).lsfdeqold, lsfmeanTbl,
++ LPC_FILTERORDER*sizeof(float));
++ memset((*iLBCenc_inst).lpc_buffer, 0,
++ (LPC_LOOKBACK+BLOCKL_MAX)*sizeof(float));
++ memset((*iLBCenc_inst).hpimem, 0, 4*sizeof(float));
++
++ return (iLBCenc_inst->no_of_bytes);
++}
++
++/*----------------------------------------------------------------*
++ * main encoder function
++ *---------------------------------------------------------------*/
++
++void iLBC_encode(
++ unsigned char *bytes, /* (o) encoded data bits iLBC */
++ float *block, /* (o) speech vector to
++ encode */
++ iLBC_Enc_Inst_t *iLBCenc_inst /* (i/o) the general encoder
++ state */
++){
++
++ float data[BLOCKL_MAX];
++ float residual[BLOCKL_MAX], reverseResidual[BLOCKL_MAX];
++
++ int start, idxForMax, idxVec[STATE_LEN];
++ float reverseDecresidual[BLOCKL_MAX], mem[CB_MEML];
++ int n, k, meml_gotten, Nfor, Nback, i, pos;
++
++
++ int gain_index[CB_NSTAGES*NASUB_MAX],
++ extra_gain_index[CB_NSTAGES];
++ int cb_index[CB_NSTAGES*NASUB_MAX],extra_cb_index[CB_NSTAGES];
++ int lsf_i[LSF_NSPLIT*LPC_N_MAX];
++ unsigned char *pbytes;
++ int diff, start_pos, state_first;
++ float en1, en2;
++ int index, ulp, firstpart;
++ int subcount, subframe;
++ float weightState[LPC_FILTERORDER];
++ float syntdenum[NSUB_MAX*(LPC_FILTERORDER+1)];
++ float weightdenum[NSUB_MAX*(LPC_FILTERORDER+1)];
++ float decresidual[BLOCKL_MAX];
++
++ /* high pass filtering of input signal if such is not done
++ prior to calling this function */
++
++ hpInput(block, iLBCenc_inst->blockl,
++ data, (*iLBCenc_inst).hpimem);
++
++ /* otherwise simply copy */
++
++ /*memcpy(data,block,iLBCenc_inst->blockl*sizeof(float));*/
++
++ /* LPC of hp filtered input data */
++
++ LPCencode(syntdenum, weightdenum, lsf_i, data, iLBCenc_inst);
++
++
++ /* inverse filter to get residual */
++
++ for (n=0; n<iLBCenc_inst->nsub; n++) {
++ anaFilter(&data[n*SUBL], &syntdenum[n*(LPC_FILTERORDER+1)],
++ SUBL, &residual[n*SUBL], iLBCenc_inst->anaMem);
++ }
++
++ /* find state location */
++
++ start = FrameClassify(iLBCenc_inst, residual);
++
++ /* check if state should be in first or last part of the
++ two subframes */
++
++ diff = STATE_LEN - iLBCenc_inst->state_short_len;
++ en1 = 0;
++ index = (start-1)*SUBL;
++ for (i = 0; i < iLBCenc_inst->state_short_len; i++) {
++ en1 += residual[index+i]*residual[index+i];
++ }
++ en2 = 0;
++ index = (start-1)*SUBL+diff;
++ for (i = 0; i < iLBCenc_inst->state_short_len; i++) {
++ en2 += residual[index+i]*residual[index+i];
++ }
++
++
++
++
++ if (en1 > en2) {
++ state_first = 1;
++ start_pos = (start-1)*SUBL;
++ } else {
++ state_first = 0;
++ start_pos = (start-1)*SUBL + diff;
++ }
++
++ /* scalar quantization of state */
++
++ StateSearchW(iLBCenc_inst, &residual[start_pos],
++ &syntdenum[(start-1)*(LPC_FILTERORDER+1)],
++ &weightdenum[(start-1)*(LPC_FILTERORDER+1)], &idxForMax,
++ idxVec, iLBCenc_inst->state_short_len, state_first);
++
++ StateConstructW(idxForMax, idxVec,
++ &syntdenum[(start-1)*(LPC_FILTERORDER+1)],
++ &decresidual[start_pos], iLBCenc_inst->state_short_len);
++
++ /* predictive quantization in state */
++
++ if (state_first) { /* put adaptive part in the end */
++
++ /* setup memory */
++
++ memset(mem, 0,
++ (CB_MEML-iLBCenc_inst->state_short_len)*sizeof(float));
++ memcpy(mem+CB_MEML-iLBCenc_inst->state_short_len,
++ decresidual+start_pos,
++ iLBCenc_inst->state_short_len*sizeof(float));
++ memset(weightState, 0, LPC_FILTERORDER*sizeof(float));
++
++ /* encode sub-frames */
++
++ iCBSearch(iLBCenc_inst, extra_cb_index, extra_gain_index,
++ &residual[start_pos+iLBCenc_inst->state_short_len],
++ mem+CB_MEML-stMemLTbl,
++ stMemLTbl, diff, CB_NSTAGES,
++ &weightdenum[start*(LPC_FILTERORDER+1)],
++ weightState, 0);
++
++ /* construct decoded vector */
++
++ iCBConstruct(
++ &decresidual[start_pos+iLBCenc_inst->state_short_len],
++ extra_cb_index, extra_gain_index,
++ mem+CB_MEML-stMemLTbl,
++ stMemLTbl, diff, CB_NSTAGES);
++
++ }
++ else { /* put adaptive part in the beginning */
++
++
++
++ /* create reversed vectors for prediction */
++
++ for (k=0; k<diff; k++) {
++ reverseResidual[k] = residual[(start+1)*SUBL-1
++ -(k+iLBCenc_inst->state_short_len)];
++ }
++
++ /* setup memory */
++
++ meml_gotten = iLBCenc_inst->state_short_len;
++ for (k=0; k<meml_gotten; k++) {
++ mem[CB_MEML-1-k] = decresidual[start_pos + k];
++ }
++ memset(mem, 0, (CB_MEML-k)*sizeof(float));
++ memset(weightState, 0, LPC_FILTERORDER*sizeof(float));
++
++ /* encode sub-frames */
++
++ iCBSearch(iLBCenc_inst, extra_cb_index, extra_gain_index,
++ reverseResidual, mem+CB_MEML-stMemLTbl, stMemLTbl,
++ diff, CB_NSTAGES,
++ &weightdenum[(start-1)*(LPC_FILTERORDER+1)],
++ weightState, 0);
++
++ /* construct decoded vector */
++
++ iCBConstruct(reverseDecresidual, extra_cb_index,
++ extra_gain_index, mem+CB_MEML-stMemLTbl, stMemLTbl,
++ diff, CB_NSTAGES);
++
++ /* get decoded residual from reversed vector */
++
++ for (k=0; k<diff; k++) {
++ decresidual[start_pos-1-k] = reverseDecresidual[k];
++ }
++ }
++
++ /* counter for predicted sub-frames */
++
++ subcount=0;
++
++ /* forward prediction of sub-frames */
++
++ Nfor = iLBCenc_inst->nsub-start-1;
++
++
++ if ( Nfor > 0 ) {
++
++ /* setup memory */
++
++ memset(mem, 0, (CB_MEML-STATE_LEN)*sizeof(float));
++ memcpy(mem+CB_MEML-STATE_LEN, decresidual+(start-1)*SUBL,
++ STATE_LEN*sizeof(float));
++ memset(weightState, 0, LPC_FILTERORDER*sizeof(float));
++
++
++
++ /* loop over sub-frames to encode */
++
++ for (subframe=0; subframe<Nfor; subframe++) {
++
++ /* encode sub-frame */
++
++ iCBSearch(iLBCenc_inst, cb_index+subcount*CB_NSTAGES,
++ gain_index+subcount*CB_NSTAGES,
++ &residual[(start+1+subframe)*SUBL],
++ mem+CB_MEML-memLfTbl[subcount],
++ memLfTbl[subcount], SUBL, CB_NSTAGES,
++ &weightdenum[(start+1+subframe)*
++ (LPC_FILTERORDER+1)],
++ weightState, subcount+1);
++
++ /* construct decoded vector */
++
++ iCBConstruct(&decresidual[(start+1+subframe)*SUBL],
++ cb_index+subcount*CB_NSTAGES,
++ gain_index+subcount*CB_NSTAGES,
++ mem+CB_MEML-memLfTbl[subcount],
++ memLfTbl[subcount], SUBL, CB_NSTAGES);
++
++ /* update memory */
++
++ memmove(mem, mem+SUBL, (CB_MEML-SUBL)*sizeof(float));
++ memcpy(mem+CB_MEML-SUBL,
++ &decresidual[(start+1+subframe)*SUBL],
++ SUBL*sizeof(float));
++ memset(weightState, 0, LPC_FILTERORDER*sizeof(float));
++
++ subcount++;
++ }
++ }
++
++
++ /* backward prediction of sub-frames */
++
++ Nback = start-1;
++
++
++ if ( Nback > 0 ) {
++
++ /* create reverse order vectors */
++
++ for (n=0; n<Nback; n++) {
++ for (k=0; k<SUBL; k++) {
++ reverseResidual[n*SUBL+k] =
++ residual[(start-1)*SUBL-1-n*SUBL-k];
++ reverseDecresidual[n*SUBL+k] =
++ decresidual[(start-1)*SUBL-1-n*SUBL-k];
++ }
++ }
++
++
++
++ /* setup memory */
++
++ meml_gotten = SUBL*(iLBCenc_inst->nsub+1-start);
++
++
++ if ( meml_gotten > CB_MEML ) {
++ meml_gotten=CB_MEML;
++ }
++ for (k=0; k<meml_gotten; k++) {
++ mem[CB_MEML-1-k] = decresidual[(start-1)*SUBL + k];
++ }
++ memset(mem, 0, (CB_MEML-k)*sizeof(float));
++ memset(weightState, 0, LPC_FILTERORDER*sizeof(float));
++
++ /* loop over sub-frames to encode */
++
++ for (subframe=0; subframe<Nback; subframe++) {
++
++ /* encode sub-frame */
++
++ iCBSearch(iLBCenc_inst, cb_index+subcount*CB_NSTAGES,
++ gain_index+subcount*CB_NSTAGES,
++ &reverseResidual[subframe*SUBL],
++ mem+CB_MEML-memLfTbl[subcount],
++ memLfTbl[subcount], SUBL, CB_NSTAGES,
++ &weightdenum[(start-2-subframe)*
++ (LPC_FILTERORDER+1)],
++ weightState, subcount+1);
++
++ /* construct decoded vector */
++
++ iCBConstruct(&reverseDecresidual[subframe*SUBL],
++ cb_index+subcount*CB_NSTAGES,
++ gain_index+subcount*CB_NSTAGES,
++ mem+CB_MEML-memLfTbl[subcount],
++ memLfTbl[subcount], SUBL, CB_NSTAGES);
++
++ /* update memory */
++
++ memmove(mem, mem+SUBL, (CB_MEML-SUBL)*sizeof(float));
++ memcpy(mem+CB_MEML-SUBL,
++ &reverseDecresidual[subframe*SUBL],
++ SUBL*sizeof(float));
++ memset(weightState, 0, LPC_FILTERORDER*sizeof(float));
++
++ subcount++;
++
++ }
++
++ /* get decoded residual from reversed vector */
++
++ for (i=0; i<SUBL*Nback; i++) {
++ decresidual[SUBL*Nback - i - 1] =
++
++
++ reverseDecresidual[i];
++ }
++ }
++ /* end encoding part */
++
++ /* adjust index */
++ index_conv_enc(cb_index);
++
++ /* pack bytes */
++
++ pbytes=bytes;
++ pos=0;
++
++ /* loop over the 3 ULP classes */
++
++ for (ulp=0; ulp<3; ulp++) {
++
++ /* LSF */
++ for (k=0; k<LSF_NSPLIT*iLBCenc_inst->lpc_n; k++) {
++ packsplit(&lsf_i[k], &firstpart, &lsf_i[k],
++ iLBCenc_inst->ULP_inst->lsf_bits[k][ulp],
++ iLBCenc_inst->ULP_inst->lsf_bits[k][ulp]+
++ iLBCenc_inst->ULP_inst->lsf_bits[k][ulp+1]+
++ iLBCenc_inst->ULP_inst->lsf_bits[k][ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->lsf_bits[k][ulp], &pos);
++ }
++
++ /* Start block info */
++
++ packsplit(&start, &firstpart, &start,
++ iLBCenc_inst->ULP_inst->start_bits[ulp],
++ iLBCenc_inst->ULP_inst->start_bits[ulp]+
++ iLBCenc_inst->ULP_inst->start_bits[ulp+1]+
++ iLBCenc_inst->ULP_inst->start_bits[ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->start_bits[ulp], &pos);
++
++ packsplit(&state_first, &firstpart, &state_first,
++ iLBCenc_inst->ULP_inst->startfirst_bits[ulp],
++ iLBCenc_inst->ULP_inst->startfirst_bits[ulp]+
++ iLBCenc_inst->ULP_inst->startfirst_bits[ulp+1]+
++ iLBCenc_inst->ULP_inst->startfirst_bits[ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->startfirst_bits[ulp], &pos);
++
++ packsplit(&idxForMax, &firstpart, &idxForMax,
++ iLBCenc_inst->ULP_inst->scale_bits[ulp],
++ iLBCenc_inst->ULP_inst->scale_bits[ulp]+
++ iLBCenc_inst->ULP_inst->scale_bits[ulp+1]+
++ iLBCenc_inst->ULP_inst->scale_bits[ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->scale_bits[ulp], &pos);
++
++
++
++ for (k=0; k<iLBCenc_inst->state_short_len; k++) {
++ packsplit(idxVec+k, &firstpart, idxVec+k,
++ iLBCenc_inst->ULP_inst->state_bits[ulp],
++ iLBCenc_inst->ULP_inst->state_bits[ulp]+
++ iLBCenc_inst->ULP_inst->state_bits[ulp+1]+
++ iLBCenc_inst->ULP_inst->state_bits[ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->state_bits[ulp], &pos);
++ }
++
++ /* 23/22 (20ms/30ms) sample block */
++
++ for (k=0;k<CB_NSTAGES;k++) {
++ packsplit(extra_cb_index+k, &firstpart,
++ extra_cb_index+k,
++ iLBCenc_inst->ULP_inst->extra_cb_index[k][ulp],
++ iLBCenc_inst->ULP_inst->extra_cb_index[k][ulp]+
++ iLBCenc_inst->ULP_inst->extra_cb_index[k][ulp+1]+
++ iLBCenc_inst->ULP_inst->extra_cb_index[k][ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->extra_cb_index[k][ulp],
++ &pos);
++ }
++
++ for (k=0;k<CB_NSTAGES;k++) {
++ packsplit(extra_gain_index+k, &firstpart,
++ extra_gain_index+k,
++ iLBCenc_inst->ULP_inst->extra_cb_gain[k][ulp],
++ iLBCenc_inst->ULP_inst->extra_cb_gain[k][ulp]+
++ iLBCenc_inst->ULP_inst->extra_cb_gain[k][ulp+1]+
++ iLBCenc_inst->ULP_inst->extra_cb_gain[k][ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->extra_cb_gain[k][ulp],
++ &pos);
++ }
++
++ /* The two/four (20ms/30ms) 40 sample sub-blocks */
++
++ for (i=0; i<iLBCenc_inst->nasub; i++) {
++ for (k=0; k<CB_NSTAGES; k++) {
++ packsplit(cb_index+i*CB_NSTAGES+k, &firstpart,
++ cb_index+i*CB_NSTAGES+k,
++ iLBCenc_inst->ULP_inst->cb_index[i][k][ulp],
++ iLBCenc_inst->ULP_inst->cb_index[i][k][ulp]+
++ iLBCenc_inst->ULP_inst->cb_index[i][k][ulp+1]+
++ iLBCenc_inst->ULP_inst->cb_index[i][k][ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->cb_index[i][k][ulp],
++ &pos);
++ }
++ }
++
++ for (i=0; i<iLBCenc_inst->nasub; i++) {
++ for (k=0; k<CB_NSTAGES; k++) {
++
++
++ packsplit(gain_index+i*CB_NSTAGES+k, &firstpart,
++ gain_index+i*CB_NSTAGES+k,
++ iLBCenc_inst->ULP_inst->cb_gain[i][k][ulp],
++ iLBCenc_inst->ULP_inst->cb_gain[i][k][ulp]+
++ iLBCenc_inst->ULP_inst->cb_gain[i][k][ulp+1]+
++ iLBCenc_inst->ULP_inst->cb_gain[i][k][ulp+2]);
++ dopack( &pbytes, firstpart,
++ iLBCenc_inst->ULP_inst->cb_gain[i][k][ulp],
++ &pos);
++ }
++ }
++ }
++
++ /* set the last bit to zero (otherwise the decoder
++ will treat it as a lost frame) */
++ dopack( &pbytes, 0, 1, &pos);
++}
++
++
++
+diff -druN codecs/ilbc/iLBC_encode.h codecs/ilbc/iLBC_encode.h
+--- codecs/ilbc/iLBC_encode.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/iLBC_encode.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,37 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ iLBC_encode.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_ILBCENCODE_H
++#define __iLBC_ILBCENCODE_H
++
++#include "iLBC_define.h"
++
++short initEncode( /* (o) Number of bytes
++ encoded */
++ iLBC_Enc_Inst_t *iLBCenc_inst, /* (i/o) Encoder instance */
++ int mode /* (i) frame size mode */
++);
++
++void iLBC_encode(
++
++
++ unsigned char *bytes, /* (o) encoded data bits iLBC */
++ float *block, /* (o) speech vector to
++ encode */
++ iLBC_Enc_Inst_t *iLBCenc_inst /* (i/o) the general encoder
++ state */
++);
++
++#endif
++
++
++
+diff -druN codecs/ilbc/lsf.c codecs/ilbc/lsf.c
+--- codecs/ilbc/lsf.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/lsf.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,264 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ lsf.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <string.h>
++#include <math.h>
++
++#include "iLBC_define.h"
++#include "lsf.h"
++
++/*----------------------------------------------------------------*
++ * conversion from lpc coefficients to lsf coefficients
++ *---------------------------------------------------------------*/
++
++void a2lsf(
++ float *freq,/* (o) lsf coefficients */
++ float *a /* (i) lpc coefficients */
++){
++ float steps[LSF_NUMBER_OF_STEPS] =
++ {(float)0.00635, (float)0.003175, (float)0.0015875,
++ (float)0.00079375};
++ float step;
++ int step_idx;
++ int lsp_index;
++ float p[LPC_HALFORDER];
++ float q[LPC_HALFORDER];
++ float p_pre[LPC_HALFORDER];
++
++
++ float q_pre[LPC_HALFORDER];
++ float old_p, old_q, *old;
++ float *pq_coef;
++ float omega, old_omega;
++ int i;
++ float hlp, hlp1, hlp2, hlp3, hlp4, hlp5;
++
++ for (i=0; i<LPC_HALFORDER; i++) {
++ p[i] = (float)-1.0 * (a[i + 1] + a[LPC_FILTERORDER - i]);
++ q[i] = a[LPC_FILTERORDER - i] - a[i + 1];
++ }
++
++ p_pre[0] = (float)-1.0 - p[0];
++ p_pre[1] = - p_pre[0] - p[1];
++ p_pre[2] = - p_pre[1] - p[2];
++ p_pre[3] = - p_pre[2] - p[3];
++ p_pre[4] = - p_pre[3] - p[4];
++ p_pre[4] = p_pre[4] / 2;
++
++ q_pre[0] = (float)1.0 - q[0];
++ q_pre[1] = q_pre[0] - q[1];
++ q_pre[2] = q_pre[1] - q[2];
++ q_pre[3] = q_pre[2] - q[3];
++ q_pre[4] = q_pre[3] - q[4];
++ q_pre[4] = q_pre[4] / 2;
++
++ omega = 0.0;
++ old_omega = 0.0;
++
++ old_p = FLOAT_MAX;
++ old_q = FLOAT_MAX;
++
++ /* Here we loop through lsp_index to find all the
++ LPC_FILTERORDER roots for omega. */
++
++ for (lsp_index = 0; lsp_index<LPC_FILTERORDER; lsp_index++) {
++
++ /* Depending on lsp_index being even or odd, we
++ alternatively solve the roots for the two LSP equations. */
++
++
++ if ((lsp_index & 0x1) == 0) {
++ pq_coef = p_pre;
++ old = &old_p;
++ } else {
++ pq_coef = q_pre;
++ old = &old_q;
++ }
++
++ /* Start with low resolution grid */
++
++ for (step_idx = 0, step = steps[step_idx];
++ step_idx < LSF_NUMBER_OF_STEPS;){
++
++
++
++ /* cos(10piw) + pq(0)cos(8piw) + pq(1)cos(6piw) +
++ pq(2)cos(4piw) + pq(3)cod(2piw) + pq(4) */
++
++ hlp = (float)cos(omega * TWO_PI);
++ hlp1 = (float)2.0 * hlp + pq_coef[0];
++ hlp2 = (float)2.0 * hlp * hlp1 - (float)1.0 +
++ pq_coef[1];
++ hlp3 = (float)2.0 * hlp * hlp2 - hlp1 + pq_coef[2];
++ hlp4 = (float)2.0 * hlp * hlp3 - hlp2 + pq_coef[3];
++ hlp5 = hlp * hlp4 - hlp3 + pq_coef[4];
++
++
++ if (((hlp5 * (*old)) <= 0.0) || (omega >= 0.5)){
++
++ if (step_idx == (LSF_NUMBER_OF_STEPS - 1)){
++
++ if (fabs(hlp5) >= fabs(*old)) {
++ freq[lsp_index] = omega - step;
++ } else {
++ freq[lsp_index] = omega;
++ }
++
++
++ if ((*old) >= 0.0){
++ *old = (float)-1.0 * FLOAT_MAX;
++ } else {
++ *old = FLOAT_MAX;
++ }
++
++ omega = old_omega;
++ step_idx = 0;
++
++ step_idx = LSF_NUMBER_OF_STEPS;
++ } else {
++
++ if (step_idx == 0) {
++ old_omega = omega;
++ }
++
++ step_idx++;
++ omega -= steps[step_idx];
++
++ /* Go back one grid step */
++
++ step = steps[step_idx];
++ }
++ } else {
++
++ /* increment omega until they are of different sign,
++ and we know there is at least one root between omega
++ and old_omega */
++ *old = hlp5;
++ omega += step;
++ }
++
++
++ }
++ }
++
++ for (i = 0; i<LPC_FILTERORDER; i++) {
++ freq[i] = freq[i] * TWO_PI;
++ }
++}
++
++/*----------------------------------------------------------------*
++ * conversion from lsf coefficients to lpc coefficients
++ *---------------------------------------------------------------*/
++
++void lsf2a(
++ float *a_coef, /* (o) lpc coefficients */
++ float *freq /* (i) lsf coefficients */
++){
++ int i, j;
++ float hlp;
++ float p[LPC_HALFORDER], q[LPC_HALFORDER];
++ float a[LPC_HALFORDER + 1], a1[LPC_HALFORDER],
++ a2[LPC_HALFORDER];
++ float b[LPC_HALFORDER + 1], b1[LPC_HALFORDER],
++ b2[LPC_HALFORDER];
++
++ for (i=0; i<LPC_FILTERORDER; i++) {
++ freq[i] = freq[i] * PI2;
++ }
++
++ /* Check input for ill-conditioned cases. This part is not
++ found in the TIA standard. It involves the following 2 IF
++ blocks. If "freq" is judged ill-conditioned, then we first
++ modify freq[0] and freq[LPC_HALFORDER-1] (normally
++ LPC_HALFORDER = 10 for LPC applications), then we adjust
++ the other "freq" values slightly */
++
++
++ if ((freq[0] <= 0.0) || (freq[LPC_FILTERORDER - 1] >= 0.5)){
++
++
++ if (freq[0] <= 0.0) {
++ freq[0] = (float)0.022;
++ }
++
++
++ if (freq[LPC_FILTERORDER - 1] >= 0.5) {
++ freq[LPC_FILTERORDER - 1] = (float)0.499;
++ }
++
++ hlp = (freq[LPC_FILTERORDER - 1] - freq[0]) /
++ (float) (LPC_FILTERORDER - 1);
++
++ for (i=1; i<LPC_FILTERORDER; i++) {
++ freq[i] = freq[i - 1] + hlp;
++ }
++
++
++ }
++
++ memset(a1, 0, LPC_HALFORDER*sizeof(float));
++ memset(a2, 0, LPC_HALFORDER*sizeof(float));
++ memset(b1, 0, LPC_HALFORDER*sizeof(float));
++ memset(b2, 0, LPC_HALFORDER*sizeof(float));
++ memset(a, 0, (LPC_HALFORDER+1)*sizeof(float));
++ memset(b, 0, (LPC_HALFORDER+1)*sizeof(float));
++
++ /* p[i] and q[i] compute cos(2*pi*omega_{2j}) and
++ cos(2*pi*omega_{2j-1} in eqs. 4.2.2.2-1 and 4.2.2.2-2.
++ Note that for this code p[i] specifies the coefficients
++ used in .Q_A(z) while q[i] specifies the coefficients used
++ in .P_A(z) */
++
++ for (i=0; i<LPC_HALFORDER; i++) {
++ p[i] = (float)cos(TWO_PI * freq[2 * i]);
++ q[i] = (float)cos(TWO_PI * freq[2 * i + 1]);
++ }
++
++ a[0] = 0.25;
++ b[0] = 0.25;
++
++ for (i= 0; i<LPC_HALFORDER; i++) {
++ a[i + 1] = a[i] - 2 * p[i] * a1[i] + a2[i];
++ b[i + 1] = b[i] - 2 * q[i] * b1[i] + b2[i];
++ a2[i] = a1[i];
++ a1[i] = a[i];
++ b2[i] = b1[i];
++ b1[i] = b[i];
++ }
++
++ for (j=0; j<LPC_FILTERORDER; j++) {
++
++ if (j == 0) {
++ a[0] = 0.25;
++ b[0] = -0.25;
++ } else {
++ a[0] = b[0] = 0.0;
++ }
++
++ for (i=0; i<LPC_HALFORDER; i++) {
++ a[i + 1] = a[i] - 2 * p[i] * a1[i] + a2[i];
++ b[i + 1] = b[i] - 2 * q[i] * b1[i] + b2[i];
++ a2[i] = a1[i];
++ a1[i] = a[i];
++ b2[i] = b1[i];
++ b1[i] = b[i];
++ }
++
++ a_coef[j + 1] = 2 * (a[LPC_HALFORDER] + b[LPC_HALFORDER]);
++ }
++
++ a_coef[0] = 1.0;
++
++
++}
++
++
+diff -druN codecs/ilbc/lsf.h codecs/ilbc/lsf.h
+--- codecs/ilbc/lsf.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/lsf.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,30 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ lsf.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++
++
++******************************************************************/
++
++#ifndef __iLBC_LSF_H
++#define __iLBC_LSF_H
++
++void a2lsf(
++ float *freq,/* (o) lsf coefficients */
++ float *a /* (i) lpc coefficients */
++);
++
++void lsf2a(
++ float *a_coef, /* (o) lpc coefficients */
++ float *freq /* (i) lsf coefficients */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/packing.c codecs/ilbc/packing.c
+--- codecs/ilbc/packing.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/packing.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,175 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ packing.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include <math.h>
++#include <stdlib.h>
++
++#include "iLBC_define.h"
++#include "constants.h"
++#include "helpfun.h"
++#include "packing.h"
++#include "string.h"
++
++/*----------------------------------------------------------------*
++ * splitting an integer into first most significant bits and
++ * remaining least significant bits
++ *---------------------------------------------------------------*/
++
++void packsplit(
++ int *index, /* (i) the value to split */
++ int *firstpart, /* (o) the value specified by most
++ significant bits */
++ int *rest, /* (o) the value specified by least
++ significant bits */
++ int bitno_firstpart, /* (i) number of bits in most
++ significant part */
++ int bitno_total /* (i) number of bits in full range
++ of value */
++){
++ int bitno_rest = bitno_total-bitno_firstpart;
++
++
++
++ *firstpart = *index>>(bitno_rest);
++ *rest = *index-(*firstpart<<(bitno_rest));
++}
++
++/*----------------------------------------------------------------*
++ * combining a value corresponding to msb's with a value
++ * corresponding to lsb's
++ *---------------------------------------------------------------*/
++
++void packcombine(
++ int *index, /* (i/o) the msb value in the
++ combined value out */
++ int rest, /* (i) the lsb value */
++ int bitno_rest /* (i) the number of bits in the
++ lsb part */
++){
++ *index = *index<<bitno_rest;
++ *index += rest;
++}
++
++/*----------------------------------------------------------------*
++ * packing of bits into bitstream, i.e., vector of bytes
++ *---------------------------------------------------------------*/
++
++void dopack(
++ unsigned char **bitstream, /* (i/o) on entrance pointer to
++ place in bitstream to pack
++ new data, on exit pointer
++ to place in bitstream to
++ pack future data */
++ int index, /* (i) the value to pack */
++ int bitno, /* (i) the number of bits that the
++ value will fit within */
++ int *pos /* (i/o) write position in the
++ current byte */
++){
++ int posLeft;
++
++ /* Clear the bits before starting in a new byte */
++
++ if ((*pos)==0) {
++ **bitstream=0;
++ }
++
++ while (bitno>0) {
++
++ /* Jump to the next byte if end of this byte is reached*/
++
++ if (*pos==8) {
++ *pos=0;
++ (*bitstream)++;
++ **bitstream=0;
++ }
++
++
++
++ posLeft=8-(*pos);
++
++ /* Insert index into the bitstream */
++
++ if (bitno <= posLeft) {
++ **bitstream |= (unsigned char)(index<<(posLeft-bitno));
++ *pos+=bitno;
++ bitno=0;
++ } else {
++ **bitstream |= (unsigned char)(index>>(bitno-posLeft));
++
++ *pos=8;
++ index-=((index>>(bitno-posLeft))<<(bitno-posLeft));
++
++ bitno-=posLeft;
++ }
++ }
++}
++
++/*----------------------------------------------------------------*
++ * unpacking of bits from bitstream, i.e., vector of bytes
++ *---------------------------------------------------------------*/
++
++void unpack(
++ unsigned char **bitstream, /* (i/o) on entrance pointer to
++ place in bitstream to
++ unpack new data from, on
++ exit pointer to place in
++ bitstream to unpack future
++ data from */
++ int *index, /* (o) resulting value */
++ int bitno, /* (i) number of bits used to
++ represent the value */
++ int *pos /* (i/o) read position in the
++ current byte */
++){
++ int BitsLeft;
++
++ *index=0;
++
++ while (bitno>0) {
++
++ /* move forward in bitstream when the end of the
++ byte is reached */
++
++ if (*pos==8) {
++ *pos=0;
++ (*bitstream)++;
++ }
++
++ BitsLeft=8-(*pos);
++
++ /* Extract bits to index */
++
++
++
++ if (BitsLeft>=bitno) {
++ *index+=((((**bitstream)<<(*pos)) & 0xFF)>>(8-bitno));
++
++ *pos+=bitno;
++ bitno=0;
++ } else {
++
++ if ((8-bitno)>0) {
++ *index+=((((**bitstream)<<(*pos)) & 0xFF)>>
++ (8-bitno));
++ *pos=8;
++ } else {
++ *index+=(((int)(((**bitstream)<<(*pos)) & 0xFF))<<
++ (bitno-8));
++ *pos=8;
++ }
++ bitno-=BitsLeft;
++ }
++ }
++}
++
++
+diff -druN codecs/ilbc/packing.h codecs/ilbc/packing.h
+--- codecs/ilbc/packing.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/packing.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,67 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ packing.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __PACKING_H
++#define __PACKING_H
++
++void packsplit(
++ int *index, /* (i) the value to split */
++ int *firstpart, /* (o) the value specified by most
++ significant bits */
++ int *rest, /* (o) the value specified by least
++ significant bits */
++ int bitno_firstpart, /* (i) number of bits in most
++ significant part */
++ int bitno_total /* (i) number of bits in full range
++ of value */
++);
++
++void packcombine(
++ int *index, /* (i/o) the msb value in the
++ combined value out */
++ int rest, /* (i) the lsb value */
++ int bitno_rest /* (i) the number of bits in the
++ lsb part */
++);
++
++void dopack(
++ unsigned char **bitstream, /* (i/o) on entrance pointer to
++ place in bitstream to pack
++ new data, on exit pointer
++ to place in bitstream to
++ pack future data */
++ int index, /* (i) the value to pack */
++ int bitno, /* (i) the number of bits that the
++ value will fit within */
++ int *pos /* (i/o) write position in the
++ current byte */
++);
++
++void unpack(
++ unsigned char **bitstream, /* (i/o) on entrance pointer to
++
++
++ place in bitstream to
++ unpack new data from, on
++ exit pointer to place in
++ bitstream to unpack future
++ data from */
++ int *index, /* (o) resulting value */
++ int bitno, /* (i) number of bits used to
++ represent the value */
++ int *pos /* (i/o) read position in the
++ current byte */
++);
++
++#endif
++
++
+diff -druN codecs/ilbc/syntFilter.c codecs/ilbc/syntFilter.c
+--- codecs/ilbc/syntFilter.c 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/syntFilter.c 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,108 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ syntFilter.c
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#include "iLBC_define.h"
++#include "syntFilter.h"
++
++/*----------------------------------------------------------------*
++ * LP synthesis filter.
++ *---------------------------------------------------------------*/
++
++void syntFilter(
++ float *Out, /* (i/o) Signal to be filtered */
++ float *a, /* (i) LP parameters */
++ int len, /* (i) Length of signal */
++ float *mem /* (i/o) Filter state */
++){
++ int i, j;
++ float *po, *pi, *pa, *pm;
++
++ po=Out;
++
++ /* Filter first part using memory from past */
++
++ for (i=0; i<LPC_FILTERORDER; i++) {
++ pi=&Out[i-1];
++ pa=&a[1];
++ pm=&mem[LPC_FILTERORDER-1];
++ for (j=1; j<=i; j++) {
++ *po-=(*pa++)*(*pi--);
++ }
++ for (j=i+1; j<LPC_FILTERORDER+1; j++) {
++ *po-=(*pa++)*(*pm--);
++ }
++ po++;
++ }
++
++ /* Filter last part where the state is entierly in
++ the output vector */
++
++ for (i=LPC_FILTERORDER; i<len; i++) {
++
++
++ pi=&Out[i-1];
++ pa=&a[1];
++ for (j=1; j<LPC_FILTERORDER+1; j++) {
++ *po-=(*pa++)*(*pi--);
++ }
++ po++;
++ }
++
++ /* Update state vector */
++
++ memcpy(mem, &Out[len-LPC_FILTERORDER],
++ LPC_FILTERORDER*sizeof(float));
++}
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
++
+diff -druN codecs/ilbc/syntFilter.h codecs/ilbc/syntFilter.h
+--- codecs/ilbc/syntFilter.h 1969-12-31 16:00:00.000000000 -0800
++++ codecs/ilbc/syntFilter.h 2005-11-29 10:24:39.000000000 -0800
+@@ -0,0 +1,27 @@
++
++/******************************************************************
++
++ iLBC Speech Coder ANSI-C Source Code
++
++ syntFilter.h
++
++ Copyright (C) The Internet Society (2004).
++ All Rights Reserved.
++
++******************************************************************/
++
++#ifndef __iLBC_SYNTFILTER_H
++#define __iLBC_SYNTFILTER_H
++
++void syntFilter(
++ float *Out, /* (i/o) Signal to be filtered */
++ float *a, /* (i) LP parameters */
++ int len, /* (i) Length of signal */
++ float *mem /* (i/o) Filter state */
++
++
++);
++
++#endif
++
++
diff --git a/net/asterisk12/files/patch-include_asterisk_astobj2.h b/net/asterisk12/files/patch-include_asterisk_astobj2.h
new file mode 100644
index 000000000000..a2a65e028e1d
--- /dev/null
+++ b/net/asterisk12/files/patch-include_asterisk_astobj2.h
@@ -0,0 +1,14 @@
+
+$FreeBSD$
+
+--- include/asterisk/astobj2.h
++++ include/asterisk/astobj2.h
+@@ -17,6 +17,8 @@
+ #ifndef _ASTERISK_ASTOBJ2_H
+ #define _ASTERISK_ASTOBJ2_H
+
++#define uint unsigned int
++
+ #include "asterisk/compat.h"
+
+ /*! \file
diff --git a/net/asterisk12/pkg-plist b/net/asterisk12/pkg-plist
index f305d9c9786b..5712461fdaaf 100644
--- a/net/asterisk12/pkg-plist
+++ b/net/asterisk12/pkg-plist
@@ -158,6 +158,7 @@ include/asterisk/ast_expr.h
include/asterisk/astdb.h
include/asterisk/astmm.h
include/asterisk/astobj.h
+include/asterisk/astobj2.h
include/asterisk/astosp.h
include/asterisk/build.h
include/asterisk/callerid.h
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 04:34:12 +0000