in2 += (in1 = in[1*3]); \     in1 += (in0 = in[0*3]); \                             \     in5 += in3; in3 += in1; \                             \     in2 *= COS6_1; \     in3 *= COS6_1; \#define DCT12_PART2 \     in0 += in4 * COS6_2; \                          \     in4 = in0 + in2;     \     in0 -= in2;          \                          \     in1 += in5 * COS6_2; \                          \     in5 = (in1 + in3) * tfcos12[0]; \     in1 = (in1 - in3) * tfcos12[2]; \                         \     in3 = in4 + in5;    \     in4 -= in5;         \                         \     in2 = in0 + in1;    \     in0 -= in1;   {     real in0,in1,in2,in3,in4,in5;     real *out1 = rawout1;     ts[SBLIMIT*0] = out1[0]; ts[SBLIMIT*1] = out1[1]; ts[SBLIMIT*2] = out1[2];     ts[SBLIMIT*3] = out1[3]; ts[SBLIMIT*4] = out1[4]; ts[SBLIMIT*5] = out1[5];      DCT12_PART1     {       real tmp0,tmp1 = (in0 - in4);       {         real tmp2 = (in1 - in5) * tfcos12[1];         tmp0 = tmp1 + tmp2;         tmp1 -= tmp2;       }       ts[(17-1)*SBLIMIT] = out1[17-1] + tmp0 * wi[11-1];       ts[(12+1)*SBLIMIT] = out1[12+1] + tmp0 * wi[6+1];       ts[(6 +1)*SBLIMIT] = out1[6 +1] + tmp1 * wi[1];       ts[(11-1)*SBLIMIT] = out1[11-1] + tmp1 * wi[5-1];     }     DCT12_PART2     ts[(17-0)*SBLIMIT] = out1[17-0] + in2 * wi[11-0];     ts[(12+0)*SBLIMIT] = out1[12+0] + in2 * wi[6+0];     ts[(12+2)*SBLIMIT] = out1[12+2] + in3 * wi[6+2];     ts[(17-2)*SBLIMIT] = out1[17-2] + in3 * wi[11-2];     ts[(6+0)*SBLIMIT]  = out1[6+0] + in0 * wi[0];     ts[(11-0)*SBLIMIT] = out1[11-0] + in0 * wi[5-0];     ts[(6+2)*SBLIMIT]  = out1[6+2] + in4 * wi[2];     ts[(11-2)*SBLIMIT] = out1[11-2] + in4 * wi[5-2];  }  in++;  {     real in0,in1,in2,in3,in4,in5;     real *out2 = rawout2;      DCT12_PART1     {       real tmp0,tmp1 = (in0 - in4);       {         real tmp2 = (in1 - in5) * tfcos12[1];         tmp0 = tmp1 + tmp2;         tmp1 -= tmp2;       }       out2[5-1] = tmp0 * wi[11-1];       out2[0+1] = tmp0 * wi[6+1];       ts[(12+1)*SBLIMIT] += tmp1 * wi[1];       ts[(17-1)*SBLIMIT] += tmp1 * wi[5-1];     }     DCT12_PART2     out2[5-0] = in2 * wi[11-0];     out2[0+0] = in2 * wi[6+0];     out2[0+2] = in3 * wi[6+2];     out2[5-2] = in3 * wi[11-2];     ts[(12+0)*SBLIMIT] += in0 * wi[0];     ts[(17-0)*SBLIMIT] += in0 * wi[5-0];     ts[(12+2)*SBLIMIT] += in4 * wi[2];     ts[(17-2)*SBLIMIT] += in4 * wi[5-2];  }  in++;   {     real in0,in1,in2,in3,in4,in5;     real *out2 = rawout2;     out2[12]=out2[13]=out2[14]=out2[15]=out2[16]=out2[17]=0.0;     DCT12_PART1     {       real tmp0,tmp1 = (in0 - in4);       {         real tmp2 = (in1 - in5) * tfcos12[1];         tmp0 = tmp1 + tmp2;         tmp1 -= tmp2;       }       out2[11-1] = tmp0 * wi[11-1];       out2[6 +1] = tmp0 * wi[6+1];       out2[0+1] += tmp1 * wi[1];       out2[5-1] += tmp1 * wi[5-1];     }     DCT12_PART2     out2[11-0] = in2 * wi[11-0];     out2[6 +0] = in2 * wi[6+0];     out2[6 +2] = in3 * wi[6+2];     out2[11-2] = in3 * wi[11-2];     out2[0+0] += in0 * wi[0];     out2[5-0] += in0 * wi[5-0];     out2[0+2] += in4 * wi[2];     out2[5-2] += in4 * wi[5-2];  }}/* * III_hybrid */static void III_hybrid( PMPSTR mp, real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT],   int ch,struct gr_info_s *gr_infos){   real *tspnt = (real *) tsOut;   real (*block)[2][SBLIMIT*SSLIMIT] = mp->hybrid_block;   int *blc = mp->hybrid_blc;   real *rawout1,*rawout2;   int bt;   int sb = 0;   {     int b = blc[ch];     rawout1=block[b][ch];     b=-b+1;     rawout2=block[b][ch];     blc[ch] = b;   }     if(gr_infos->mixed_block_flag) {     sb = 2;     dct36(fsIn[0],rawout1,rawout2,win[0],tspnt);     dct36(fsIn[1],rawout1+18,rawout2+18,win1[0],tspnt+1);     rawout1 += 36; rawout2 += 36; tspnt += 2;   }    bt = gr_infos->block_type;   if(bt == 2) {     for (; sb<(int)gr_infos->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) {       dct12(fsIn[sb],rawout1,rawout2,win[2],tspnt);       dct12(fsIn[sb+1],rawout1+18,rawout2+18,win1[2],tspnt+1);     }   }   else {     for (; sb<(int)gr_infos->maxb; sb+=2,tspnt+=2,rawout1+=36,rawout2+=36) {       dct36(fsIn[sb],rawout1,rawout2,win[bt],tspnt);       dct36(fsIn[sb+1],rawout1+18,rawout2+18,win1[bt],tspnt+1);     }   }   for(;sb<SBLIMIT;sb++,tspnt++) {     int i;     for(i=0;i<SSLIMIT;i++) {       tspnt[i*SBLIMIT] = *rawout1++;       *rawout2++ = 0.0;     }   }}/* * main layer3 handler */struct III_sideinfo sideinfo;int do_layer3_sideinfo(PMPSTR mp){  struct frame *fr = &mp->fr;  int stereo = fr->stereo;  int single = fr->single;  int ms_stereo;  int sfreq = fr->sampling_frequency;  int granules;  int ch,gr,databits;  if(stereo == 1) { /* stream is mono */    single = 0;  }  if(fr->mode == MPG_MD_JOINT_STEREO) {    ms_stereo = fr->mode_ext & 0x2;  }  else    ms_stereo = 0;  if(fr->lsf) {    granules = 1;    III_get_side_info_2(mp,&sideinfo,stereo,ms_stereo,sfreq,single);  }  else {    granules = 2;    III_get_side_info_1(mp,&sideinfo,stereo,ms_stereo,sfreq,single);  }  databits=0;  for (gr=0 ; gr < granules ; ++gr) {    for (ch=0; ch < stereo ; ++ch) {      struct gr_info_s *gr_infos = &(sideinfo.ch[ch].gr[gr]);      databits += gr_infos->part2_3_length;    }  }  return databits-8*sideinfo.main_data_begin;}int  do_layer3( PMPSTR mp,unsigned char *pcm_sample,int *pcm_point,                int (*synth_1to1_mono_ptr)(PMPSTR,real *,unsigned char *,int *),                int (*synth_1to1_ptr)(PMPSTR,real *,int,unsigned char *, int *) ){  int gr, ch, ss,clip=0;  int scalefacs[2][39]; /* max 39 for short[13][3] mode, mixed: 38, long: 22 */  /*  struct III_sideinfo sideinfo; */  struct frame *fr=&(mp->fr);  int stereo = fr->stereo;  int single = fr->single;  int ms_stereo,i_stereo;  int sfreq = fr->sampling_frequency;  int stereo1,granules;  if(set_pointer(mp, (int)sideinfo.main_data_begin) == MP3_ERR)    return 0;  if(stereo == 1) { /* stream is mono */    stereo1 = 1;    single = 0;  }  else if(single >= 0) /* stream is stereo, but force to mono */    stereo1 = 1;  else    stereo1 = 2;  if(fr->mode == MPG_MD_JOINT_STEREO) {    ms_stereo = fr->mode_ext & 0x2;    i_stereo  = fr->mode_ext & 0x1;  }  else    ms_stereo = i_stereo = 0;  if(fr->lsf) {    granules = 1;  }  else {    granules = 2;  }  for (gr=0;gr<granules;gr++)   {    static real hybridIn[2][SBLIMIT][SSLIMIT];    static real hybridOut[2][SSLIMIT][SBLIMIT];    {      struct gr_info_s *gr_infos = &(sideinfo.ch[0].gr[gr]);      long part2bits;      if(fr->lsf)        part2bits = III_get_scale_factors_2(mp,scalefacs[0],gr_infos,0);      else {        part2bits = III_get_scale_factors_1(mp,scalefacs[0],gr_infos);      }#ifndef NOANALYSIS      if (mpg123_pinfo!=NULL) {	int i;	mpg123_pinfo->sfbits[gr][0] = part2bits;	for (i=0; i<39; i++) 	  mpg123_pinfo->sfb_s[gr][0][i]=scalefacs[0][i];      }#endif      if(III_dequantize_sample(mp, hybridIn[0], scalefacs[0],gr_infos,sfreq,part2bits))        return clip;    }    if(stereo == 2) {      struct gr_info_s *gr_infos = &(sideinfo.ch[1].gr[gr]);      long part2bits;      if(fr->lsf)         part2bits = III_get_scale_factors_2(mp,scalefacs[1],gr_infos,i_stereo);      else {        part2bits = III_get_scale_factors_1(mp,scalefacs[1],gr_infos);      }#ifndef NOANALYSIS      if (mpg123_pinfo!=NULL) {	int i;	mpg123_pinfo->sfbits[gr][1] = part2bits;	for (i=0; i<39; i++) 	  mpg123_pinfo->sfb_s[gr][1][i]=scalefacs[1][i];      }#endif      if(III_dequantize_sample(mp, hybridIn[1],scalefacs[1],gr_infos,sfreq,part2bits))          return clip;      if(ms_stereo) {        int i;        for(i=0;i<SBLIMIT*SSLIMIT;i++) {          real tmp0,tmp1;          tmp0 = ((real *) hybridIn[0])[i];          tmp1 = ((real *) hybridIn[1])[i];          ((real *) hybridIn[1])[i] = tmp0 - tmp1;            ((real *) hybridIn[0])[i] = tmp0 + tmp1;        }      }      if(i_stereo)        III_i_stereo(hybridIn,scalefacs[1],gr_infos,sfreq,ms_stereo,fr->lsf);      if(ms_stereo || i_stereo || (single == 3) ) {        if(gr_infos->maxb > sideinfo.ch[0].gr[gr].maxb)           sideinfo.ch[0].gr[gr].maxb = gr_infos->maxb;        else          gr_infos->maxb = sideinfo.ch[0].gr[gr].maxb;      }      switch(single) {        case 3:          {            int i;            real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1];            for(i=0;i<(int)(SSLIMIT*gr_infos->maxb);i++,in0++)              *in0 = (*in0 + *in1++); /* *0.5 done by pow-scale */           }          break;        case 1:          {            int i;            real *in0 = (real *) hybridIn[0],*in1 = (real *) hybridIn[1];            for(i=0;i<(int)(SSLIMIT*gr_infos->maxb);i++)              *in0++ = *in1++;          }          break;      }    }#ifndef NOANALYSIS    if (mpg123_pinfo!=NULL) {    int i,sb;    float ifqstep;    mpg123_pinfo->bitrate =       tabsel_123[fr->lsf][fr->lay-1][fr->bitrate_index];    mpg123_pinfo->sampfreq = freqs[sfreq];    mpg123_pinfo->emph = fr->emphasis;    mpg123_pinfo->crc = fr->error_protection;    mpg123_pinfo->padding = fr->padding;    mpg123_pinfo->stereo = fr->stereo;    mpg123_pinfo->js =   (fr->mode == MPG_MD_JOINT_STEREO);    mpg123_pinfo->ms_stereo = ms_stereo;    mpg123_pinfo->i_stereo = i_stereo;    mpg123_pinfo->maindata = sideinfo.main_data_begin;    for(ch=0;ch<stereo1;ch++) {      struct gr_info_s *gr_infos = &(sideinfo.ch[ch].gr[gr]);      mpg123_pinfo->big_values[gr][ch]=gr_infos->big_values;      mpg123_pinfo->scalefac_scale[gr][ch]=gr_infos->scalefac_scale;      mpg123_pinfo->mixed[gr][ch] = gr_infos->mixed_block_flag;      mpg123_pinfo->mpg123blocktype[gr][ch]=gr_infos->block_type;      mpg123_pinfo->mainbits[gr][ch] = gr_infos->part2_3_length;      mpg123_pinfo->preflag[gr][ch] = gr_infos->preflag;      if (gr==1) mpg123_pinfo->scfsi[ch] = gr_infos->scfsi;    }    for (ch=0;ch<stereo1;ch++) {      struct gr_info_s *gr_infos = &(sideinfo.ch[ch].gr[gr]);      ifqstep = ( mpg123_pinfo->scalefac_scale[gr][ch] == 0 ) ? .5 : 1.0;      if (2==gr_infos->block_type) {	for (i=0; i<3; i++) {	  for (sb=0; sb<12; sb++) {	    int j = 3*sb+i;	    /*           is_p = scalefac[sfb*3+lwin-gr_infos->mixed_block_flag]; 	    */	    /* scalefac was copied into mpg123_pinfo->sfb_s[] above */	    mpg123_pinfo->sfb_s[gr][ch][j] = -ifqstep*mpg123_pinfo->sfb_s[gr][ch][j-gr_infos->mixed_block_flag];	    mpg123_pinfo->sfb_s[gr][ch][j] -= 2*(mpg123_pinfo->sub_gain[gr][ch][i]);	  }	  mpg123_pinfo->sfb_s[gr][ch][3*sb+i] = - 2*(mpg123_pinfo->sub_gain[gr][ch][i]);	}      }else{	for (sb=0; sb<21; sb++) {	  /* scalefac was copied into mpg123_pinfo->sfb[] above */	  mpg123_pinfo->sfb[gr][ch][sb] = mpg123_pinfo->sfb_s[gr][ch][sb];	  if (gr_infos->preflag) mpg123_pinfo->sfb[gr][ch][sb] += pretab1[sb];	  mpg123_pinfo->sfb[gr][ch][sb] *= -ifqstep;	}	mpg123_pinfo->sfb[gr][ch][21]=0;      }    }        for(ch=0;ch<stereo1;ch++) {       int j=0;      for (sb=0;sb<SBLIMIT;sb++)	for(ss=0;ss<SSLIMIT;ss++,j++) 	  mpg123_pinfo->mpg123xr[gr][ch][j]=hybridIn[ch][sb][ss];    }  }#endif    for(ch=0;ch<stereo1;ch++) {      struct gr_info_s *gr_infos = &(sideinfo.ch[ch].gr[gr]);      III_antialias(hybridIn[ch],gr_infos);      III_hybrid(mp, hybridIn[ch], hybridOut[ch], ch,gr_infos);    }    for(ss=0;ss<SSLIMIT;ss++) {      if(single >= 0) {        clip += (*synth_1to1_mono_ptr)(mp, hybridOut[0][ss],pcm_sample,pcm_point);      }      else {        int p1 = *pcm_point;        clip += (*synth_1to1_ptr)(mp, hybridOut[0][ss],0,pcm_sample,&p1);        clip += (*synth_1to1_ptr)(mp, hybridOut[1][ss],1,pcm_sample,pcm_point);      }    }  }    return clip;}