ilbc_encode.c

开源的openh323的v1.18.0版,有1.19.0版无法编译过的朋友可以用这版

   
       
       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 */
   
               memcpy(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 */
   
               memcpy(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);
   }