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Diffstat (limited to 'net/asterisk10/files/ilbc_enable.diff')
| -rw-r--r-- | net/asterisk10/files/ilbc_enable.diff | 7599 |
1 files changed, 0 insertions, 7599 deletions
diff --git a/net/asterisk10/files/ilbc_enable.diff b/net/asterisk10/files/ilbc_enable.diff deleted file mode 100644 index a2a3c4f73d70..000000000000 --- a/net/asterisk10/files/ilbc_enable.diff +++ /dev/null @@ -1,7599 +0,0 @@ - -$FreeBSD$ - ---- menuselect-tree -+++ menuselect-tree -@@ -269,7 +269,6 @@ - <depend>gsm</depend> - </member> - <member name="codec_ilbc" displayname="iLBC Coder/Decoder" remove_on_change="codecs/codec_ilbc.o codecs/codec_ilbc.so"> -- <defaultenabled>no</defaultenabled> - </member> - <member name="codec_lpc10" displayname="LPC10 2.4kbps Coder/Decoder" remove_on_change="codecs/codec_lpc10.o codecs/codec_lpc10.so"> - </member> -diff -druN codecs/ilbc.orig/FrameClassify.c codecs/ilbc/FrameClassify.c ---- codecs/ilbc.orig/FrameClassify.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/FrameClassify.c 2006-02-14 11:14:15.000000000 -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.orig/FrameClassify.h codecs/ilbc/FrameClassify.h ---- codecs/ilbc.orig/FrameClassify.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/FrameClassify.h 2006-02-14 11:14:15.000000000 -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.orig/LPCdecode.c codecs/ilbc/LPCdecode.c ---- codecs/ilbc.orig/LPCdecode.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/LPCdecode.c 2006-02-14 11:14:15.000000000 -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.orig/LPCdecode.h codecs/ilbc/LPCdecode.h ---- codecs/ilbc.orig/LPCdecode.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/LPCdecode.h 2006-02-14 11:14:15.000000000 -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.orig/LPCencode.c codecs/ilbc/LPCencode.c ---- codecs/ilbc.orig/LPCencode.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/LPCencode.c 2006-02-14 11:14:15.000000000 -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.orig/LPCencode.h codecs/ilbc/LPCencode.h ---- codecs/ilbc.orig/LPCencode.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/LPCencode.h 2006-02-14 11:14:15.000000000 -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.orig/Makefile codecs/ilbc/Makefile ---- codecs/ilbc.orig/Makefile 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/Makefile 2007-10-29 15:12:16.000000000 -0700 -@@ -0,0 +1,20 @@ -+LIB=libilbc.a -+CFLAGS+=-fPIC -+ -+OBJS=anaFilter.o iCBSearch.o packing.o \ -+ constants.o gainquant.o iLBC_decode.o StateConstructW.o \ -+ createCB.o getCBvec.o iLBC_encode.o StateSearchW.o doCPLC.o \ -+ helpfun.o syntFilter.o enhancer.o hpInput.o LPCdecode.o \ -+ filter.o hpOutput.o LPCencode.o FrameClassify.o iCBConstruct.o lsf.o -+ -+include $(ASTTOPDIR)/Makefile.rules -+ -+all: $(LIB) -+ -+$(LIB): $(OBJS) -+ $(ECHO_PREFIX) echo " [AR] $^ -> $@" -+ $(CMD_PREFIX) $(AR) cr $@ $^ -+ $(CMD_PREFIX) $(RANLIB) $@ -+ -+clean: -+ rm -f $(LIB) *.o .*.d *.s *.i -diff -druN codecs/ilbc.orig/StateConstructW.c codecs/ilbc/StateConstructW.c ---- codecs/ilbc.orig/StateConstructW.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/StateConstructW.c 2006-02-14 11:14:15.000000000 -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.orig/StateConstructW.h codecs/ilbc/StateConstructW.h ---- codecs/ilbc.orig/StateConstructW.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/StateConstructW.h 2006-02-14 11:14:15.000000000 -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.orig/StateSearchW.c codecs/ilbc/StateSearchW.c ---- codecs/ilbc.orig/StateSearchW.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/StateSearchW.c 2006-02-14 11:14:15.000000000 -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.orig/StateSearchW.h codecs/ilbc/StateSearchW.h ---- codecs/ilbc.orig/StateSearchW.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/StateSearchW.h 2006-02-14 11:14:15.000000000 -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.orig/anaFilter.c codecs/ilbc/anaFilter.c ---- codecs/ilbc.orig/anaFilter.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/anaFilter.c 2006-02-14 11:14:15.000000000 -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.orig/anaFilter.h codecs/ilbc/anaFilter.h ---- codecs/ilbc.orig/anaFilter.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/anaFilter.h 2006-02-14 11:14:15.000000000 -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.orig/constants.c codecs/ilbc/constants.c ---- codecs/ilbc.orig/constants.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/constants.c 2006-02-14 11:14:15.000000000 -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, 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-+(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.orig/constants.h codecs/ilbc/constants.h ---- codecs/ilbc.orig/constants.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/constants.h 2006-02-14 11:14:15.000000000 -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.orig/createCB.c codecs/ilbc/createCB.c ---- codecs/ilbc.orig/createCB.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/createCB.c 2006-02-14 11:14:15.000000000 -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.orig/createCB.h codecs/ilbc/createCB.h ---- codecs/ilbc.orig/createCB.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/createCB.h 2006-02-14 11:14:15.000000000 -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.orig/doCPLC.c codecs/ilbc/doCPLC.c ---- codecs/ilbc.orig/doCPLC.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/doCPLC.c 2006-02-14 11:14:15.000000000 -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.orig/doCPLC.h codecs/ilbc/doCPLC.h ---- codecs/ilbc.orig/doCPLC.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/doCPLC.h 2006-02-14 11:14:15.000000000 -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.orig/enhancer.c codecs/ilbc/enhancer.c ---- codecs/ilbc.orig/enhancer.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/enhancer.c 2006-02-14 11:14:15.000000000 -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.orig/enhancer.h codecs/ilbc/enhancer.h ---- codecs/ilbc.orig/enhancer.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/enhancer.h 2006-02-14 11:14:15.000000000 -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.orig/filter.c codecs/ilbc/filter.c ---- codecs/ilbc.orig/filter.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/filter.c 2006-02-14 11:14:15.000000000 -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.orig/filter.h codecs/ilbc/filter.h ---- codecs/ilbc.orig/filter.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/filter.h 2006-02-14 11:14:15.000000000 -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.orig/gainquant.c codecs/ilbc/gainquant.c ---- codecs/ilbc.orig/gainquant.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/gainquant.c 2006-02-14 11:14:15.000000000 -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.orig/gainquant.h codecs/ilbc/gainquant.h ---- codecs/ilbc.orig/gainquant.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/gainquant.h 2006-02-14 11:14:15.000000000 -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.orig/getCBvec.c codecs/ilbc/getCBvec.c ---- codecs/ilbc.orig/getCBvec.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/getCBvec.c 2006-02-14 11:14:15.000000000 -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.orig/getCBvec.h codecs/ilbc/getCBvec.h ---- codecs/ilbc.orig/getCBvec.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/getCBvec.h 2006-02-14 11:14:15.000000000 -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.orig/helpfun.c codecs/ilbc/helpfun.c ---- codecs/ilbc.orig/helpfun.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/helpfun.c 2006-02-14 11:14:15.000000000 -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.orig/helpfun.h codecs/ilbc/helpfun.h ---- codecs/ilbc.orig/helpfun.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/helpfun.h 2006-02-14 11:14:15.000000000 -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.orig/hpInput.c codecs/ilbc/hpInput.c ---- codecs/ilbc.orig/hpInput.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/hpInput.c 2006-02-14 11:14:15.000000000 -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.orig/hpInput.h codecs/ilbc/hpInput.h ---- codecs/ilbc.orig/hpInput.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/hpInput.h 2006-02-14 11:14:15.000000000 -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.orig/hpOutput.c codecs/ilbc/hpOutput.c ---- codecs/ilbc.orig/hpOutput.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/hpOutput.c 2006-02-14 11:14:15.000000000 -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.orig/hpOutput.h codecs/ilbc/hpOutput.h ---- codecs/ilbc.orig/hpOutput.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/hpOutput.h 2006-02-14 11:14:15.000000000 -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.orig/iCBConstruct.c codecs/ilbc/iCBConstruct.c ---- codecs/ilbc.orig/iCBConstruct.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iCBConstruct.c 2006-02-14 11:14:15.000000000 -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.orig/iCBConstruct.h codecs/ilbc/iCBConstruct.h ---- codecs/ilbc.orig/iCBConstruct.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iCBConstruct.h 2006-02-14 11:14:15.000000000 -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.orig/iCBSearch.c codecs/ilbc/iCBSearch.c ---- codecs/ilbc.orig/iCBSearch.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iCBSearch.c 2006-02-14 11:14:15.000000000 -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.orig/iCBSearch.h codecs/ilbc/iCBSearch.h ---- codecs/ilbc.orig/iCBSearch.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iCBSearch.h 2006-02-14 11:14:15.000000000 -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.orig/iLBC_decode.c codecs/ilbc/iLBC_decode.c ---- codecs/ilbc.orig/iLBC_decode.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iLBC_decode.c 2006-02-14 11:14:15.000000000 -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.orig/iLBC_decode.h codecs/ilbc/iLBC_decode.h ---- codecs/ilbc.orig/iLBC_decode.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iLBC_decode.h 2006-02-14 11:14:15.000000000 -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.orig/iLBC_define.h codecs/ilbc/iLBC_define.h ---- codecs/ilbc.orig/iLBC_define.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iLBC_define.h 2006-02-14 11:14:15.000000000 -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.orig/iLBC_encode.c codecs/ilbc/iLBC_encode.c ---- codecs/ilbc.orig/iLBC_encode.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iLBC_encode.c 2006-02-14 11:14:15.000000000 -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.orig/iLBC_encode.h codecs/ilbc/iLBC_encode.h ---- codecs/ilbc.orig/iLBC_encode.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/iLBC_encode.h 2006-02-14 11:14:15.000000000 -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 -+ -+ -+ -Files codecs/ilbc.orig/libilbc.a and codecs/ilbc/libilbc.a differ -diff -druN codecs/ilbc.orig/libilbc.vcproj codecs/ilbc/libilbc.vcproj ---- codecs/ilbc.orig/libilbc.vcproj 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/libilbc.vcproj 2006-03-20 13:25:50.000000000 -0800 -@@ -0,0 +1,353 @@ -+<?xml version="1.0" encoding="Windows-1252"?> -+<VisualStudioProject -+ ProjectType="Visual C++" -+ Version="8.00" -+ Name="libilbc" -+ ProjectGUID="{989BB874-7AF1-44CB-8E5C-CC8113D267E8}" -+ RootNamespace="libilbc" -+ Keyword="Win32Proj" -+ > -+ <Platforms> -+ <Platform -+ Name="Win32" -+ /> -+ </Platforms> -+ <ToolFiles> -+ </ToolFiles> -+ <Configurations> -+ <Configuration -+ Name="Debug|Win32" -+ OutputDirectory="$(SolutionDir)$(ConfigurationName)" -+ IntermediateDirectory="$(ConfigurationName)" -+ ConfigurationType="4" -+ CharacterSet="1" -+ > -+ <Tool -+ Name="VCPreBuildEventTool" -+ /> -+ <Tool -+ Name="VCCustomBuildTool" -+ /> -+ <Tool -+ Name="VCXMLDataGeneratorTool" -+ /> -+ <Tool -+ Name="VCWebServiceProxyGeneratorTool" -+ /> -+ <Tool -+ Name="VCMIDLTool" -+ /> -+ <Tool -+ Name="VCCLCompilerTool" -+ Optimization="0" -+ PreprocessorDefinitions="WIN32;_DEBUG;_LIB" -+ MinimalRebuild="true" -+ BasicRuntimeChecks="3" -+ RuntimeLibrary="3" -+ UsePrecompiledHeader="0" -+ WarningLevel="3" -+ Detect64BitPortabilityProblems="true" -+ DebugInformationFormat="4" -+ /> -+ <Tool -+ Name="VCManagedResourceCompilerTool" -+ /> -+ <Tool -+ Name="VCResourceCompilerTool" -+ /> -+ <Tool -+ Name="VCPreLinkEventTool" -+ /> -+ <Tool -+ Name="VCLibrarianTool" -+ /> -+ <Tool -+ Name="VCALinkTool" -+ /> -+ <Tool -+ Name="VCXDCMakeTool" -+ /> -+ <Tool -+ Name="VCBscMakeTool" -+ /> -+ <Tool -+ Name="VCFxCopTool" -+ /> -+ <Tool -+ Name="VCPostBuildEventTool" -+ /> -+ </Configuration> -+ <Configuration -+ Name="Release|Win32" -+ OutputDirectory="$(SolutionDir)$(ConfigurationName)" -+ IntermediateDirectory="$(ConfigurationName)" -+ ConfigurationType="4" -+ CharacterSet="1" -+ WholeProgramOptimization="1" -+ > -+ <Tool -+ Name="VCPreBuildEventTool" -+ /> -+ <Tool -+ Name="VCCustomBuildTool" -+ /> -+ <Tool -+ Name="VCXMLDataGeneratorTool" -+ /> -+ <Tool -+ Name="VCWebServiceProxyGeneratorTool" -+ /> -+ <Tool -+ Name="VCMIDLTool" -+ /> -+ <Tool -+ Name="VCCLCompilerTool" -+ PreprocessorDefinitions="WIN32;NDEBUG;_LIB" -+ RuntimeLibrary="2" -+ UsePrecompiledHeader="0" -+ WarningLevel="3" -+ Detect64BitPortabilityProblems="true" -+ DebugInformationFormat="3" -+ /> -+ <Tool -+ Name="VCManagedResourceCompilerTool" -+ /> -+ <Tool -+ Name="VCResourceCompilerTool" -+ /> -+ <Tool -+ Name="VCPreLinkEventTool" -+ /> -+ <Tool -+ Name="VCLibrarianTool" -+ /> -+ <Tool -+ Name="VCALinkTool" -+ /> -+ <Tool -+ Name="VCXDCMakeTool" -+ /> -+ <Tool -+ Name="VCBscMakeTool" -+ /> -+ <Tool -+ Name="VCFxCopTool" -+ /> -+ <Tool -+ Name="VCPostBuildEventTool" -+ /> -+ </Configuration> -+ </Configurations> -+ <References> -+ </References> -+ <Files> -+ <Filter -+ Name="Source Files" -+ Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx" -+ UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}" -+ > -+ <File -+ RelativePath=".\anaFilter.c" -+ > -+ </File> -+ <File -+ RelativePath=".\constants.c" -+ > -+ </File> -+ <File -+ RelativePath=".\createCB.c" -+ > -+ </File> -+ <File -+ RelativePath=".\doCPLC.c" -+ > -+ </File> -+ <File -+ RelativePath=".\enhancer.c" -+ > -+ </File> -+ <File -+ RelativePath=".\filter.c" -+ > -+ </File> -+ <File -+ RelativePath=".\FrameClassify.c" -+ > -+ </File> -+ <File -+ RelativePath=".\gainquant.c" -+ > -+ </File> -+ <File -+ RelativePath=".\getCBvec.c" -+ > -+ </File> -+ <File -+ RelativePath=".\helpfun.c" -+ > -+ </File> -+ <File -+ RelativePath=".\hpInput.c" -+ > -+ </File> -+ <File -+ RelativePath=".\hpOutput.c" -+ > -+ </File> -+ <File -+ RelativePath=".\iCBConstruct.c" -+ > -+ </File> -+ <File -+ RelativePath=".\iCBSearch.c" -+ > -+ </File> -+ <File -+ RelativePath=".\iLBC_decode.c" -+ > -+ </File> -+ <File -+ RelativePath=".\iLBC_encode.c" -+ > -+ </File> -+ <File -+ RelativePath=".\LPCdecode.c" -+ > -+ </File> -+ <File -+ RelativePath=".\LPCencode.c" -+ > -+ </File> -+ <File -+ RelativePath=".\lsf.c" -+ > -+ </File> -+ <File -+ RelativePath=".\packing.c" -+ > -+ </File> -+ <File -+ RelativePath=".\StateConstructW.c" -+ > -+ </File> -+ <File -+ RelativePath=".\StateSearchW.c" -+ > -+ </File> -+ <File -+ RelativePath=".\syntFilter.c" -+ > -+ </File> -+ </Filter> -+ <Filter -+ Name="Header Files" -+ Filter="h;hpp;hxx;hm;inl;inc;xsd" -+ UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}" -+ > -+ <File -+ RelativePath=".\anaFilter.h" -+ > -+ </File> -+ <File -+ RelativePath=".\constants.h" -+ > -+ </File> -+ <File -+ RelativePath=".\createCB.h" -+ > -+ </File> -+ <File -+ RelativePath=".\doCPLC.h" -+ > -+ </File> -+ <File -+ RelativePath=".\enhancer.h" -+ > -+ </File> -+ <File -+ RelativePath=".\filter.h" -+ > -+ </File> -+ <File -+ RelativePath=".\FrameClassify.h" -+ > -+ </File> -+ <File -+ RelativePath=".\gainquant.h" -+ > -+ </File> -+ <File -+ RelativePath=".\getCBvec.h" -+ > -+ </File> -+ <File -+ RelativePath=".\helpfun.h" -+ > -+ </File> -+ <File -+ RelativePath=".\hpInput.h" -+ > -+ </File> -+ <File -+ RelativePath=".\hpOutput.h" -+ > -+ </File> -+ <File -+ RelativePath=".\iCBConstruct.h" -+ > -+ </File> -+ <File -+ RelativePath=".\iCBSearch.h" -+ > -+ </File> -+ <File -+ RelativePath=".\iLBC_decode.h" -+ > -+ </File> -+ <File -+ RelativePath=".\iLBC_define.h" -+ > -+ </File> -+ <File -+ RelativePath=".\iLBC_encode.h" -+ > -+ </File> -+ <File -+ RelativePath=".\LPCdecode.h" -+ > -+ </File> -+ <File -+ RelativePath=".\LPCencode.h" -+ > -+ </File> -+ <File -+ RelativePath=".\lsf.h" -+ > -+ </File> -+ <File -+ RelativePath=".\packing.h" -+ > -+ </File> -+ <File -+ RelativePath=".\StateConstructW.h" -+ > -+ </File> -+ <File -+ RelativePath=".\StateSearchW.h" -+ > -+ </File> -+ <File -+ RelativePath=".\syntFilter.h" -+ > -+ </File> -+ </Filter> -+ <Filter -+ Name="Resource Files" -+ Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav" -+ UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}" -+ > -+ </Filter> -+ </Files> -+ <Globals> -+ </Globals> -+</VisualStudioProject> -diff -druN codecs/ilbc.orig/lsf.c codecs/ilbc/lsf.c ---- codecs/ilbc.orig/lsf.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/lsf.c 2006-02-14 11:14:15.000000000 -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.orig/lsf.h codecs/ilbc/lsf.h ---- codecs/ilbc.orig/lsf.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/lsf.h 2006-02-14 11:14:15.000000000 -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.orig/packing.c codecs/ilbc/packing.c ---- codecs/ilbc.orig/packing.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/packing.c 2006-02-14 11:14:15.000000000 -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.orig/packing.h codecs/ilbc/packing.h ---- codecs/ilbc.orig/packing.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/packing.h 2006-02-14 11:14:15.000000000 -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.orig/syntFilter.c codecs/ilbc/syntFilter.c ---- codecs/ilbc.orig/syntFilter.c 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/syntFilter.c 2006-02-14 11:14:15.000000000 -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.orig/syntFilter.h codecs/ilbc/syntFilter.h ---- codecs/ilbc.orig/syntFilter.h 1969-12-31 16:00:00.000000000 -0800 -+++ codecs/ilbc/syntFilter.h 2006-02-14 11:14:15.000000000 -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 -+ -+ ---- codecs/.moduleinfo 2008/08/20 23:00:58 1.1 -+++ codecs/.moduleinfo 2008/08/20 23:01:12 -@@ -11,7 +11,6 @@ - <depend>gsm</depend> - </member> - <member name="codec_ilbc" displayname="iLBC Coder/Decoder" remove_on_change="codecs/codec_ilbc.o codecs/codec_ilbc.so"> -- <defaultenabled>no</defaultenabled> - </member> - <member name="codec_lpc10" displayname="LPC10 2.4kbps Coder/Decoder" remove_on_change="codecs/codec_lpc10.o codecs/codec_lpc10.so"> - </member> |