From 789831ef9abb8cc5cb4668f344f97bd3ae62244d Mon Sep 17 00:00:00 2001
From: "Kevin P. Fleming" <kpfleming@digium.com>
Date: Wed, 26 Mar 2008 17:10:28 +0000
Subject: Merged revisions 110880 via svnmerge from
 https://origsvn.digium.com/svn/asterisk/branches/1.4

................
r110880 | kpfleming | 2008-03-26 09:42:35 -0700 (Wed, 26 Mar 2008) | 10 lines

Merged revisions 110869 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.2

........
r110869 | kpfleming | 2008-03-26 08:53:46 -0700 (Wed, 26 Mar 2008) | 2 lines

due to licensing restrictions, we cannot distribute the source code for iLBC encoding and decoding... so remove it, and add instructions on how the user can obtain it themselves

........

................


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@110881 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 codecs/ilbc/iLBC_encode.c | 514 ----------------------------------------------
 1 file changed, 514 deletions(-)
 delete mode 100644 codecs/ilbc/iLBC_encode.c

(limited to 'codecs/ilbc/iLBC_encode.c')

diff --git a/codecs/ilbc/iLBC_encode.c b/codecs/ilbc/iLBC_encode.c
deleted file mode 100644
index bd1496498..000000000
--- a/codecs/ilbc/iLBC_encode.c
+++ /dev/null
@@ -1,514 +0,0 @@
-
-/******************************************************************
-
-    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);
-}
-
-
-
-- 
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