From 8e94244f86e657e4113e35438e59cf5771882b25 Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Sun, 3 Mar 2024 12:51:03 +0100
Subject: libogg and libvorbis are no longer part of this source tree

---
 contrib/vorbis/lib/res0.c | 889 ----------------------------------------------
 1 file changed, 889 deletions(-)
 delete mode 100644 contrib/vorbis/lib/res0.c

(limited to 'contrib/vorbis/lib/res0.c')

diff --git a/contrib/vorbis/lib/res0.c b/contrib/vorbis/lib/res0.c
deleted file mode 100644
index 6d623d7..0000000
--- a/contrib/vorbis/lib/res0.c
+++ /dev/null
@@ -1,889 +0,0 @@
-/********************************************************************
- *                                                                  *
- * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
- *                                                                  *
- * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2010             *
- * by the Xiph.Org Foundation http://www.xiph.org/                  *
- *                                                                  *
- ********************************************************************
-
- function: residue backend 0, 1 and 2 implementation
-
- ********************************************************************/
-
-/* Slow, slow, slow, simpleminded and did I mention it was slow?  The
-   encode/decode loops are coded for clarity and performance is not
-   yet even a nagging little idea lurking in the shadows.  Oh and BTW,
-   it's slow. */
-
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <ogg/ogg.h>
-#include "vorbis/codec.h"
-#include "codec_internal.h"
-#include "registry.h"
-#include "codebook.h"
-#include "misc.h"
-#include "os.h"
-
-//#define TRAIN_RES 1
-//#define TRAIN_RESAUX 1
-
-#if defined(TRAIN_RES) || defined (TRAIN_RESAUX)
-#include <stdio.h>
-#endif
-
-typedef struct {
-  vorbis_info_residue0 *info;
-
-  int         parts;
-  int         stages;
-  codebook   *fullbooks;
-  codebook   *phrasebook;
-  codebook ***partbooks;
-
-  int         partvals;
-  int       **decodemap;
-
-  long      postbits;
-  long      phrasebits;
-  long      frames;
-
-#if defined(TRAIN_RES) || defined(TRAIN_RESAUX)
-  int        train_seq;
-  long      *training_data[8][64];
-  float      training_max[8][64];
-  float      training_min[8][64];
-  float     tmin;
-  float     tmax;
-  int       submap;
-#endif
-
-} vorbis_look_residue0;
-
-void res0_free_info(vorbis_info_residue *i){
-  vorbis_info_residue0 *info=(vorbis_info_residue0 *)i;
-  if(info){
-    memset(info,0,sizeof(*info));
-    _ogg_free(info);
-  }
-}
-
-void res0_free_look(vorbis_look_residue *i){
-  int j;
-  if(i){
-
-    vorbis_look_residue0 *look=(vorbis_look_residue0 *)i;
-
-#ifdef TRAIN_RES
-    {
-      int j,k,l;
-      for(j=0;j<look->parts;j++){
-        /*fprintf(stderr,"partition %d: ",j);*/
-        for(k=0;k<8;k++)
-          if(look->training_data[k][j]){
-            char buffer[80];
-            FILE *of;
-            codebook *statebook=look->partbooks[j][k];
-
-            /* long and short into the same bucket by current convention */
-            sprintf(buffer,"res_sub%d_part%d_pass%d.vqd",look->submap,j,k);
-            of=fopen(buffer,"a");
-
-            for(l=0;l<statebook->entries;l++)
-              fprintf(of,"%d:%ld\n",l,look->training_data[k][j][l]);
-
-            fclose(of);
-
-            /*fprintf(stderr,"%d(%.2f|%.2f) ",k,
-              look->training_min[k][j],look->training_max[k][j]);*/
-
-            _ogg_free(look->training_data[k][j]);
-            look->training_data[k][j]=NULL;
-          }
-        /*fprintf(stderr,"\n");*/
-      }
-    }
-    fprintf(stderr,"min/max residue: %g::%g\n",look->tmin,look->tmax);
-
-    /*fprintf(stderr,"residue bit usage %f:%f (%f total)\n",
-            (float)look->phrasebits/look->frames,
-            (float)look->postbits/look->frames,
-            (float)(look->postbits+look->phrasebits)/look->frames);*/
-#endif
-
-
-    /*vorbis_info_residue0 *info=look->info;
-
-    fprintf(stderr,
-            "%ld frames encoded in %ld phrasebits and %ld residue bits "
-            "(%g/frame) \n",look->frames,look->phrasebits,
-            look->resbitsflat,
-            (look->phrasebits+look->resbitsflat)/(float)look->frames);
-
-    for(j=0;j<look->parts;j++){
-      long acc=0;
-      fprintf(stderr,"\t[%d] == ",j);
-      for(k=0;k<look->stages;k++)
-        if((info->secondstages[j]>>k)&1){
-          fprintf(stderr,"%ld,",look->resbits[j][k]);
-          acc+=look->resbits[j][k];
-        }
-
-      fprintf(stderr,":: (%ld vals) %1.2fbits/sample\n",look->resvals[j],
-              acc?(float)acc/(look->resvals[j]*info->grouping):0);
-    }
-    fprintf(stderr,"\n");*/
-
-    for(j=0;j<look->parts;j++)
-      if(look->partbooks[j])_ogg_free(look->partbooks[j]);
-    _ogg_free(look->partbooks);
-    for(j=0;j<look->partvals;j++)
-      _ogg_free(look->decodemap[j]);
-    _ogg_free(look->decodemap);
-
-    memset(look,0,sizeof(*look));
-    _ogg_free(look);
-  }
-}
-
-static int icount(unsigned int v){
-  int ret=0;
-  while(v){
-    ret+=v&1;
-    v>>=1;
-  }
-  return(ret);
-}
-
-
-void res0_pack(vorbis_info_residue *vr,oggpack_buffer *opb){
-  vorbis_info_residue0 *info=(vorbis_info_residue0 *)vr;
-  int j,acc=0;
-  oggpack_write(opb,info->begin,24);
-  oggpack_write(opb,info->end,24);
-
-  oggpack_write(opb,info->grouping-1,24);  /* residue vectors to group and
-                                             code with a partitioned book */
-  oggpack_write(opb,info->partitions-1,6); /* possible partition choices */
-  oggpack_write(opb,info->groupbook,8);  /* group huffman book */
-
-  /* secondstages is a bitmask; as encoding progresses pass by pass, a
-     bitmask of one indicates this partition class has bits to write
-     this pass */
-  for(j=0;j<info->partitions;j++){
-    if(ov_ilog(info->secondstages[j])>3){
-      /* yes, this is a minor hack due to not thinking ahead */
-      oggpack_write(opb,info->secondstages[j],3);
-      oggpack_write(opb,1,1);
-      oggpack_write(opb,info->secondstages[j]>>3,5);
-    }else
-      oggpack_write(opb,info->secondstages[j],4); /* trailing zero */
-    acc+=icount(info->secondstages[j]);
-  }
-  for(j=0;j<acc;j++)
-    oggpack_write(opb,info->booklist[j],8);
-
-}
-
-/* vorbis_info is for range checking */
-vorbis_info_residue *res0_unpack(vorbis_info *vi,oggpack_buffer *opb){
-  int j,acc=0;
-  vorbis_info_residue0 *info=_ogg_calloc(1,sizeof(*info));
-  codec_setup_info     *ci=vi->codec_setup;
-
-  info->begin=oggpack_read(opb,24);
-  info->end=oggpack_read(opb,24);
-  info->grouping=oggpack_read(opb,24)+1;
-  info->partitions=oggpack_read(opb,6)+1;
-  info->groupbook=oggpack_read(opb,8);
-
-  /* check for premature EOP */
-  if(info->groupbook<0)goto errout;
-
-  for(j=0;j<info->partitions;j++){
-    int cascade=oggpack_read(opb,3);
-    int cflag=oggpack_read(opb,1);
-    if(cflag<0) goto errout;
-    if(cflag){
-      int c=oggpack_read(opb,5);
-      if(c<0) goto errout;
-      cascade|=(c<<3);
-    }
-    info->secondstages[j]=cascade;
-
-    acc+=icount(cascade);
-  }
-  for(j=0;j<acc;j++){
-    int book=oggpack_read(opb,8);
-    if(book<0) goto errout;
-    info->booklist[j]=book;
-  }
-
-  if(info->groupbook>=ci->books)goto errout;
-  for(j=0;j<acc;j++){
-    if(info->booklist[j]>=ci->books)goto errout;
-    if(ci->book_param[info->booklist[j]]->maptype==0)goto errout;
-  }
-
-  /* verify the phrasebook is not specifying an impossible or
-     inconsistent partitioning scheme. */
-  /* modify the phrasebook ranging check from r16327; an early beta
-     encoder had a bug where it used an oversized phrasebook by
-     accident.  These files should continue to be playable, but don't
-     allow an exploit */
-  {
-    int entries = ci->book_param[info->groupbook]->entries;
-    int dim = ci->book_param[info->groupbook]->dim;
-    int partvals = 1;
-    if (dim<1) goto errout;
-    while(dim>0){
-      partvals *= info->partitions;
-      if(partvals > entries) goto errout;
-      dim--;
-    }
-    info->partvals = partvals;
-  }
-
-  return(info);
- errout:
-  res0_free_info(info);
-  return(NULL);
-}
-
-vorbis_look_residue *res0_look(vorbis_dsp_state *vd,
-                               vorbis_info_residue *vr){
-  vorbis_info_residue0 *info=(vorbis_info_residue0 *)vr;
-  vorbis_look_residue0 *look=_ogg_calloc(1,sizeof(*look));
-  codec_setup_info     *ci=vd->vi->codec_setup;
-
-  int j,k,acc=0;
-  int dim;
-  int maxstage=0;
-  look->info=info;
-
-  look->parts=info->partitions;
-  look->fullbooks=ci->fullbooks;
-  look->phrasebook=ci->fullbooks+info->groupbook;
-  dim=look->phrasebook->dim;
-
-  look->partbooks=_ogg_calloc(look->parts,sizeof(*look->partbooks));
-
-  for(j=0;j<look->parts;j++){
-    int stages=ov_ilog(info->secondstages[j]);
-    if(stages){
-      if(stages>maxstage)maxstage=stages;
-      look->partbooks[j]=_ogg_calloc(stages,sizeof(*look->partbooks[j]));
-      for(k=0;k<stages;k++)
-        if(info->secondstages[j]&(1<<k)){
-          look->partbooks[j][k]=ci->fullbooks+info->booklist[acc++];
-#ifdef TRAIN_RES
-          look->training_data[k][j]=_ogg_calloc(look->partbooks[j][k]->entries,
-                                           sizeof(***look->training_data));
-#endif
-        }
-    }
-  }
-
-  look->partvals=1;
-  for(j=0;j<dim;j++)
-      look->partvals*=look->parts;
-
-  look->stages=maxstage;
-  look->decodemap=_ogg_malloc(look->partvals*sizeof(*look->decodemap));
-  for(j=0;j<look->partvals;j++){
-    long val=j;
-    long mult=look->partvals/look->parts;
-    look->decodemap[j]=_ogg_malloc(dim*sizeof(*look->decodemap[j]));
-    for(k=0;k<dim;k++){
-      long deco=val/mult;
-      val-=deco*mult;
-      mult/=look->parts;
-      look->decodemap[j][k]=deco;
-    }
-  }
-#if defined(TRAIN_RES) || defined (TRAIN_RESAUX)
-  {
-    static int train_seq=0;
-    look->train_seq=train_seq++;
-  }
-#endif
-  return(look);
-}
-
-/* break an abstraction and copy some code for performance purposes */
-static int local_book_besterror(codebook *book,int *a){
-  int dim=book->dim;
-  int i,j,o;
-  int minval=book->minval;
-  int del=book->delta;
-  int qv=book->quantvals;
-  int ze=(qv>>1);
-  int index=0;
-  /* assumes integer/centered encoder codebook maptype 1 no more than dim 8 */
-  int p[8]={0,0,0,0,0,0,0,0};
-
-  if(del!=1){
-    for(i=0,o=dim;i<dim;i++){
-      int v = (a[--o]-minval+(del>>1))/del;
-      int m = (v<ze ? ((ze-v)<<1)-1 : ((v-ze)<<1));
-      index = index*qv+ (m<0?0:(m>=qv?qv-1:m));
-      p[o]=v*del+minval;
-    }
-  }else{
-    for(i=0,o=dim;i<dim;i++){
-      int v = a[--o]-minval;
-      int m = (v<ze ? ((ze-v)<<1)-1 : ((v-ze)<<1));
-      index = index*qv+ (m<0?0:(m>=qv?qv-1:m));
-      p[o]=v*del+minval;
-    }
-  }
-
-  if(book->c->lengthlist[index]<=0){
-    const static_codebook *c=book->c;
-    int best=-1;
-    /* assumes integer/centered encoder codebook maptype 1 no more than dim 8 */
-    int e[8]={0,0,0,0,0,0,0,0};
-    int maxval = book->minval + book->delta*(book->quantvals-1);
-    for(i=0;i<book->entries;i++){
-      if(c->lengthlist[i]>0){
-        int this=0;
-        for(j=0;j<dim;j++){
-          int val=(e[j]-a[j]);
-          this+=val*val;
-        }
-        if(best==-1 || this<best){
-          memcpy(p,e,sizeof(p));
-          best=this;
-          index=i;
-        }
-      }
-      /* assumes the value patterning created by the tools in vq/ */
-      j=0;
-      while(e[j]>=maxval)
-        e[j++]=0;
-      if(e[j]>=0)
-        e[j]+=book->delta;
-      e[j]= -e[j];
-    }
-  }
-
-  if(index>-1){
-    for(i=0;i<dim;i++)
-      *a++ -= p[i];
-  }
-
-  return(index);
-}
-
-#ifdef TRAIN_RES
-static int _encodepart(oggpack_buffer *opb,int *vec, int n,
-                       codebook *book,long *acc){
-#else
-static int _encodepart(oggpack_buffer *opb,int *vec, int n,
-                       codebook *book){
-#endif
-  int i,bits=0;
-  int dim=book->dim;
-  int step=n/dim;
-
-  for(i=0;i<step;i++){
-    int entry=local_book_besterror(book,vec+i*dim);
-
-#ifdef TRAIN_RES
-    if(entry>=0)
-      acc[entry]++;
-#endif
-
-    bits+=vorbis_book_encode(book,entry,opb);
-
-  }
-
-  return(bits);
-}
-
-static long **_01class(vorbis_block *vb,vorbis_look_residue *vl,
-                       int **in,int ch){
-  long i,j,k;
-  vorbis_look_residue0 *look=(vorbis_look_residue0 *)vl;
-  vorbis_info_residue0 *info=look->info;
-
-  /* move all this setup out later */
-  int samples_per_partition=info->grouping;
-  int possible_partitions=info->partitions;
-  int n=info->end-info->begin;
-
-  int partvals=n/samples_per_partition;
-  long **partword=_vorbis_block_alloc(vb,ch*sizeof(*partword));
-  float scale=100./samples_per_partition;
-
-  /* we find the partition type for each partition of each
-     channel.  We'll go back and do the interleaved encoding in a
-     bit.  For now, clarity */
-
-  for(i=0;i<ch;i++){
-    partword[i]=_vorbis_block_alloc(vb,n/samples_per_partition*sizeof(*partword[i]));
-    memset(partword[i],0,n/samples_per_partition*sizeof(*partword[i]));
-  }
-
-  for(i=0;i<partvals;i++){
-    int offset=i*samples_per_partition+info->begin;
-    for(j=0;j<ch;j++){
-      int max=0;
-      int ent=0;
-      for(k=0;k<samples_per_partition;k++){
-        if(abs(in[j][offset+k])>max)max=abs(in[j][offset+k]);
-        ent+=abs(in[j][offset+k]);
-      }
-      ent*=scale;
-
-      for(k=0;k<possible_partitions-1;k++)
-        if(max<=info->classmetric1[k] &&
-           (info->classmetric2[k]<0 || ent<info->classmetric2[k]))
-          break;
-
-      partword[j][i]=k;
-    }
-  }
-
-#ifdef TRAIN_RESAUX
-  {
-    FILE *of;
-    char buffer[80];
-
-    for(i=0;i<ch;i++){
-      sprintf(buffer,"resaux_%d.vqd",look->train_seq);
-      of=fopen(buffer,"a");
-      for(j=0;j<partvals;j++)
-        fprintf(of,"%ld, ",partword[i][j]);
-      fprintf(of,"\n");
-      fclose(of);
-    }
-  }
-#endif
-  look->frames++;
-
-  return(partword);
-}
-
-/* designed for stereo or other modes where the partition size is an
-   integer multiple of the number of channels encoded in the current
-   submap */
-static long **_2class(vorbis_block *vb,vorbis_look_residue *vl,int **in,
-                      int ch){
-  long i,j,k,l;
-  vorbis_look_residue0 *look=(vorbis_look_residue0 *)vl;
-  vorbis_info_residue0 *info=look->info;
-
-  /* move all this setup out later */
-  int samples_per_partition=info->grouping;
-  int possible_partitions=info->partitions;
-  int n=info->end-info->begin;
-
-  int partvals=n/samples_per_partition;
-  long **partword=_vorbis_block_alloc(vb,sizeof(*partword));
-
-#if defined(TRAIN_RES) || defined (TRAIN_RESAUX)
-  FILE *of;
-  char buffer[80];
-#endif
-
-  partword[0]=_vorbis_block_alloc(vb,partvals*sizeof(*partword[0]));
-  memset(partword[0],0,partvals*sizeof(*partword[0]));
-
-  for(i=0,l=info->begin/ch;i<partvals;i++){
-    int magmax=0;
-    int angmax=0;
-    for(j=0;j<samples_per_partition;j+=ch){
-      if(abs(in[0][l])>magmax)magmax=abs(in[0][l]);
-      for(k=1;k<ch;k++)
-        if(abs(in[k][l])>angmax)angmax=abs(in[k][l]);
-      l++;
-    }
-
-    for(j=0;j<possible_partitions-1;j++)
-      if(magmax<=info->classmetric1[j] &&
-         angmax<=info->classmetric2[j])
-        break;
-
-    partword[0][i]=j;
-
-  }
-
-#ifdef TRAIN_RESAUX
-  sprintf(buffer,"resaux_%d.vqd",look->train_seq);
-  of=fopen(buffer,"a");
-  for(i=0;i<partvals;i++)
-    fprintf(of,"%ld, ",partword[0][i]);
-  fprintf(of,"\n");
-  fclose(of);
-#endif
-
-  look->frames++;
-
-  return(partword);
-}
-
-static int _01forward(oggpack_buffer *opb,
-                      vorbis_look_residue *vl,
-                      int **in,int ch,
-                      long **partword,
-#ifdef TRAIN_RES
-                      int (*encode)(oggpack_buffer *,int *,int,
-                                    codebook *,long *),
-                      int submap
-#else
-                      int (*encode)(oggpack_buffer *,int *,int,
-                                    codebook *)
-#endif
-){
-  long i,j,k,s;
-  vorbis_look_residue0 *look=(vorbis_look_residue0 *)vl;
-  vorbis_info_residue0 *info=look->info;
-
-#ifdef TRAIN_RES
-  look->submap=submap;
-#endif
-
-  /* move all this setup out later */
-  int samples_per_partition=info->grouping;
-  int possible_partitions=info->partitions;
-  int partitions_per_word=look->phrasebook->dim;
-  int n=info->end-info->begin;
-
-  int partvals=n/samples_per_partition;
-  long resbits[128];
-  long resvals[128];
-
-#ifdef TRAIN_RES
-  for(i=0;i<ch;i++)
-    for(j=info->begin;j<info->end;j++){
-      if(in[i][j]>look->tmax)look->tmax=in[i][j];
-      if(in[i][j]<look->tmin)look->tmin=in[i][j];
-    }
-#endif
-
-  memset(resbits,0,sizeof(resbits));
-  memset(resvals,0,sizeof(resvals));
-
-  /* we code the partition words for each channel, then the residual
-     words for a partition per channel until we've written all the
-     residual words for that partition word.  Then write the next
-     partition channel words... */
-
-  for(s=0;s<look->stages;s++){
-
-    for(i=0;i<partvals;){
-
-      /* first we encode a partition codeword for each channel */
-      if(s==0){
-        for(j=0;j<ch;j++){
-          long val=partword[j][i];
-          for(k=1;k<partitions_per_word;k++){
-            val*=possible_partitions;
-            if(i+k<partvals)
-              val+=partword[j][i+k];
-          }
-
-          /* training hack */
-          if(val<look->phrasebook->entries)
-            look->phrasebits+=vorbis_book_encode(look->phrasebook,val,opb);
-#if 0 /*def TRAIN_RES*/
-          else
-            fprintf(stderr,"!");
-#endif
-
-        }
-      }
-
-      /* now we encode interleaved residual values for the partitions */
-      for(k=0;k<partitions_per_word && i<partvals;k++,i++){
-        long offset=i*samples_per_partition+info->begin;
-
-        for(j=0;j<ch;j++){
-          if(s==0)resvals[partword[j][i]]+=samples_per_partition;
-          if(info->secondstages[partword[j][i]]&(1<<s)){
-            codebook *statebook=look->partbooks[partword[j][i]][s];
-            if(statebook){
-              int ret;
-#ifdef TRAIN_RES
-              long *accumulator=NULL;
-              accumulator=look->training_data[s][partword[j][i]];
-              {
-                int l;
-                int *samples=in[j]+offset;
-                for(l=0;l<samples_per_partition;l++){
-                  if(samples[l]<look->training_min[s][partword[j][i]])
-                    look->training_min[s][partword[j][i]]=samples[l];
-                  if(samples[l]>look->training_max[s][partword[j][i]])
-                    look->training_max[s][partword[j][i]]=samples[l];
-                }
-              }
-              ret=encode(opb,in[j]+offset,samples_per_partition,
-                         statebook,accumulator);
-#else
-              ret=encode(opb,in[j]+offset,samples_per_partition,
-                         statebook);
-#endif
-
-              look->postbits+=ret;
-              resbits[partword[j][i]]+=ret;
-            }
-          }
-        }
-      }
-    }
-  }
-
-  return(0);
-}
-
-/* a truncated packet here just means 'stop working'; it's not an error */
-static int _01inverse(vorbis_block *vb,vorbis_look_residue *vl,
-                      float **in,int ch,
-                      long (*decodepart)(codebook *, float *,
-                                         oggpack_buffer *,int)){
-
-  long i,j,k,l,s;
-  vorbis_look_residue0 *look=(vorbis_look_residue0 *)vl;
-  vorbis_info_residue0 *info=look->info;
-
-  /* move all this setup out later */
-  int samples_per_partition=info->grouping;
-  int partitions_per_word=look->phrasebook->dim;
-  int max=vb->pcmend>>1;
-  int end=(info->end<max?info->end:max);
-  int n=end-info->begin;
-
-  if(n>0){
-    int partvals=n/samples_per_partition;
-    int partwords=(partvals+partitions_per_word-1)/partitions_per_word;
-    int ***partword=alloca(ch*sizeof(*partword));
-
-    for(j=0;j<ch;j++)
-      partword[j]=_vorbis_block_alloc(vb,partwords*sizeof(*partword[j]));
-
-    for(s=0;s<look->stages;s++){
-
-      /* each loop decodes on partition codeword containing
-         partitions_per_word partitions */
-      for(i=0,l=0;i<partvals;l++){
-        if(s==0){
-          /* fetch the partition word for each channel */
-          for(j=0;j<ch;j++){
-            int temp=vorbis_book_decode(look->phrasebook,&vb->opb);
-
-            if(temp==-1 || temp>=info->partvals)goto eopbreak;
-            partword[j][l]=look->decodemap[temp];
-            if(partword[j][l]==NULL)goto errout;
-          }
-        }
-
-        /* now we decode residual values for the partitions */
-        for(k=0;k<partitions_per_word && i<partvals;k++,i++)
-          for(j=0;j<ch;j++){
-            long offset=info->begin+i*samples_per_partition;
-            if(info->secondstages[partword[j][l][k]]&(1<<s)){
-              codebook *stagebook=look->partbooks[partword[j][l][k]][s];
-              if(stagebook){
-                if(decodepart(stagebook,in[j]+offset,&vb->opb,
-                              samples_per_partition)==-1)goto eopbreak;
-              }
-            }
-          }
-      }
-    }
-  }
- errout:
- eopbreak:
-  return(0);
-}
-
-int res0_inverse(vorbis_block *vb,vorbis_look_residue *vl,
-                 float **in,int *nonzero,int ch){
-  int i,used=0;
-  for(i=0;i<ch;i++)
-    if(nonzero[i])
-      in[used++]=in[i];
-  if(used)
-    return(_01inverse(vb,vl,in,used,vorbis_book_decodevs_add));
-  else
-    return(0);
-}
-
-int res1_forward(oggpack_buffer *opb,vorbis_block *vb,vorbis_look_residue *vl,
-                 int **in,int *nonzero,int ch, long **partword, int submap){
-  int i,used=0;
-  (void)vb;
-  for(i=0;i<ch;i++)
-    if(nonzero[i])
-      in[used++]=in[i];
-
-  if(used){
-#ifdef TRAIN_RES
-    return _01forward(opb,vl,in,used,partword,_encodepart,submap);
-#else
-    (void)submap;
-    return _01forward(opb,vl,in,used,partword,_encodepart);
-#endif
-  }else{
-    return(0);
-  }
-}
-
-long **res1_class(vorbis_block *vb,vorbis_look_residue *vl,
-                  int **in,int *nonzero,int ch){
-  int i,used=0;
-  for(i=0;i<ch;i++)
-    if(nonzero[i])
-      in[used++]=in[i];
-  if(used)
-    return(_01class(vb,vl,in,used));
-  else
-    return(0);
-}
-
-int res1_inverse(vorbis_block *vb,vorbis_look_residue *vl,
-                 float **in,int *nonzero,int ch){
-  int i,used=0;
-  for(i=0;i<ch;i++)
-    if(nonzero[i])
-      in[used++]=in[i];
-  if(used)
-    return(_01inverse(vb,vl,in,used,vorbis_book_decodev_add));
-  else
-    return(0);
-}
-
-long **res2_class(vorbis_block *vb,vorbis_look_residue *vl,
-                  int **in,int *nonzero,int ch){
-  int i,used=0;
-  for(i=0;i<ch;i++)
-    if(nonzero[i])used++;
-  if(used)
-    return(_2class(vb,vl,in,ch));
-  else
-    return(0);
-}
-
-/* res2 is slightly more different; all the channels are interleaved
-   into a single vector and encoded. */
-
-int res2_forward(oggpack_buffer *opb,
-                 vorbis_block *vb,vorbis_look_residue *vl,
-                 int **in,int *nonzero,int ch, long **partword,int submap){
-  long i,j,k,n=vb->pcmend/2,used=0;
-
-  /* don't duplicate the code; use a working vector hack for now and
-     reshape ourselves into a single channel res1 */
-  /* ugly; reallocs for each coupling pass :-( */
-  int *work=_vorbis_block_alloc(vb,ch*n*sizeof(*work));
-  for(i=0;i<ch;i++){
-    int *pcm=in[i];
-    if(nonzero[i])used++;
-    for(j=0,k=i;j<n;j++,k+=ch)
-      work[k]=pcm[j];
-  }
-
-  if(used){
-#ifdef TRAIN_RES
-    return _01forward(opb,vl,&work,1,partword,_encodepart,submap);
-#else
-    (void)submap;
-    return _01forward(opb,vl,&work,1,partword,_encodepart);
-#endif
-  }else{
-    return(0);
-  }
-}
-
-/* duplicate code here as speed is somewhat more important */
-int res2_inverse(vorbis_block *vb,vorbis_look_residue *vl,
-                 float **in,int *nonzero,int ch){
-  long i,k,l,s;
-  vorbis_look_residue0 *look=(vorbis_look_residue0 *)vl;
-  vorbis_info_residue0 *info=look->info;
-
-  /* move all this setup out later */
-  int samples_per_partition=info->grouping;
-  int partitions_per_word=look->phrasebook->dim;
-  int max=(vb->pcmend*ch)>>1;
-  int end=(info->end<max?info->end:max);
-  int n=end-info->begin;
-
-  if(n>0){
-    int partvals=n/samples_per_partition;
-    int partwords=(partvals+partitions_per_word-1)/partitions_per_word;
-    int **partword=_vorbis_block_alloc(vb,partwords*sizeof(*partword));
-
-    for(i=0;i<ch;i++)if(nonzero[i])break;
-    if(i==ch)return(0); /* no nonzero vectors */
-
-    for(s=0;s<look->stages;s++){
-      for(i=0,l=0;i<partvals;l++){
-
-        if(s==0){
-          /* fetch the partition word */
-          int temp=vorbis_book_decode(look->phrasebook,&vb->opb);
-          if(temp==-1 || temp>=info->partvals)goto eopbreak;
-          partword[l]=look->decodemap[temp];
-          if(partword[l]==NULL)goto errout;
-        }
-
-        /* now we decode residual values for the partitions */
-        for(k=0;k<partitions_per_word && i<partvals;k++,i++)
-          if(info->secondstages[partword[l][k]]&(1<<s)){
-            codebook *stagebook=look->partbooks[partword[l][k]][s];
-
-            if(stagebook){
-              if(vorbis_book_decodevv_add(stagebook,in,
-                                          i*samples_per_partition+info->begin,ch,
-                                          &vb->opb,samples_per_partition)==-1)
-                goto eopbreak;
-            }
-          }
-      }
-    }
-  }
- errout:
- eopbreak:
-  return(0);
-}
-
-
-const vorbis_func_residue residue0_exportbundle={
-  NULL,
-  &res0_unpack,
-  &res0_look,
-  &res0_free_info,
-  &res0_free_look,
-  NULL,
-  NULL,
-  &res0_inverse
-};
-
-const vorbis_func_residue residue1_exportbundle={
-  &res0_pack,
-  &res0_unpack,
-  &res0_look,
-  &res0_free_info,
-  &res0_free_look,
-  &res1_class,
-  &res1_forward,
-  &res1_inverse
-};
-
-const vorbis_func_residue residue2_exportbundle={
-  &res0_pack,
-  &res0_unpack,
-  &res0_look,
-  &res0_free_info,
-  &res0_free_look,
-  &res2_class,
-  &res2_forward,
-  &res2_inverse
-};
-- 
cgit v1.1