/********************************************************************
* *
- * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
- * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. *
- * PLEASE READ THESE TERMS DISTRIBUTING. *
+ * 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 OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-2000 *
- * by Monty <monty@xiph.org> and The XIPHOPHORUS Company *
- * http://www.xiph.org/ *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2014 *
+ * by the Xiph.Org Foundation https://xiph.org/ *
* *
********************************************************************
function: hufftree builder
- last mod: $Id: huffbuild.c,v 1.2 2000/02/23 09:23:51 xiphmont Exp $
********************************************************************/
#include <string.h>
#include <math.h>
#include <stdio.h>
-#include "../vq/bookutil.h"
+#include "bookutil.h"
static int nsofar=0;
static int getval(FILE *in,int begin,int n,int group,int max){
- double v;
+ float v;
int i;
long val=0;
static void usage(){
fprintf(stderr,
- "usage:\n"
- "huffbuild <input>.vqd <begin,n,group>\n"
- " where begin,n,group is first scalar, \n"
- " number of scalars of each in line,\n"
- " number of scalars in a group\n"
- "eg: huffbuild reslongaux.vqd 0,1024,4\n"
- "produces reslongaux.vqh\n\n");
+ "usage:\n"
+ "huffbuild <input>.vqd <begin,n,group>|<lorange-hirange> [noguard]\n"
+ " where begin,n,group is first scalar, \n"
+ " number of scalars of each in line,\n"
+ " number of scalars in a group\n"
+ "eg: huffbuild reslongaux.vqd 0,1024,4\n"
+ "produces reslongaux.vqh\n\n");
exit(1);
}
int main(int argc, char *argv[]){
char *base;
char *infile;
- int i,j,k,begin,n,subn;
+ int i,j,k,begin,n,subn,guard=1;
FILE *file;
int maxval=0;
+ int loval=0;
if(argc<3)usage();
+ if(argc==4)guard=0;
infile=strdup(argv[1]);
base=strdup(infile);
{
char *pos=strchr(argv[2],',');
- begin=atoi(argv[2]);
- if(!pos)
- usage();
- else
- n=atoi(pos+1);
- pos=strchr(pos+1,',');
- if(!pos)
- usage();
- else
- subn=atoi(pos+1);
- if(n/subn*subn != n){
- fprintf(stderr,"n must be divisible by group\n");
- exit(1);
+ char *dpos=strchr(argv[2],'-');
+ if(dpos){
+ loval=atoi(argv[2]);
+ maxval=atoi(dpos+1);
+ subn=1;
+ begin=0;
+ }else{
+ begin=atoi(argv[2]);
+ if(!pos)
+ usage();
+ else
+ n=atoi(pos+1);
+ pos=strchr(pos+1,',');
+ if(!pos)
+ usage();
+ else
+ subn=atoi(pos+1);
+ if(n/subn*subn != n){
+ fprintf(stderr,"n must be divisible by group\n");
+ exit(1);
+ }
}
}
file=fopen(infile,"r");
if(!file){
fprintf(stderr,"Could not open file %s\n",infile);
- exit(1);
+ if(!maxval)
+ exit(1);
+ else
+ fprintf(stderr," making untrained books.\n");
+
}
- i=0;
- while(1){
- long v;
- if(get_next_ivalue(file,&v))break;
- if(v>maxval)maxval=v;
- if(!(i++&0xff))spinnit("loading... ",i);
+ if(!maxval){
+ i=0;
+ while(1){
+ long v;
+ if(get_next_ivalue(file,&v))break;
+ if(v>maxval)maxval=v;
+
+ if(!(i++&0xff))spinnit("loading... ",i);
+ }
+ rewind(file);
+ maxval++;
}
- rewind(file);
- maxval++;
{
long vals=pow(maxval,subn);
- long *hist=malloc(vals*sizeof(long));
- long *lengths=malloc(vals*sizeof(long));
-
- for(j=0;j<vals;j++)hist[j]=1;
-
- reset_next_value();
- i/=subn;
- while(!feof(file)){
- long val=getval(file,begin,n,subn,maxval);
- if(val==-1)break;
- hist[val]++;
- if(!(i--&0xff))spinnit("loading... ",i*subn);
+ long *hist=_ogg_calloc(vals,sizeof(long));
+ long *lengths=_ogg_calloc(vals,sizeof(long));
+
+ for(j=loval;j<vals;j++)hist[j]=guard;
+
+ if(file){
+ reset_next_value();
+ i/=subn;
+ while(!feof(file)){
+ long val=getval(file,begin,n,subn,maxval);
+ if(val==-1 || val>=vals)break;
+ hist[val]++;
+ if(!(i--&0xff))spinnit("loading... ",i*subn);
+ }
+ fclose(file);
}
- fclose(file);
-
+
/* we have the probabilities, build the tree */
fprintf(stderr,"Building tree for %ld entries\n",vals);
- build_tree_from_lengths(vals,hist,lengths);
-
+ build_tree_from_lengths0(vals,hist,lengths);
+
/* save the book */
{
char *buffer=alloca(strlen(base)+5);
strcat(buffer,".vqh");
file=fopen(buffer,"w");
if(!file){
- fprintf(stderr,"Could not open file %s\n",buffer);
- exit(1);
+ fprintf(stderr,"Could not open file %s\n",buffer);
+ exit(1);
}
}
-
- fprintf(file,
- "/********************************************************************\n"
- " * *\n"
- " * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. *\n"
- " * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *\n"
- " * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. *\n"
- " * PLEASE READ THESE TERMS DISTRIBUTING. *\n"
- " * *\n"
- " * THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-1999 *\n"
- " * by 1999 Monty <monty@xiph.org> and The XIPHOPHORUS Company *\n"
- " * http://www.xiph.org/ *\n"
- " * *\n"
- " ********************************************************************\n"
- "\n"
- " function: static codebook autogenerated by huff/huffbuld\n"
- "\n"
- " ********************************************************************/\n\n");
-
- fprintf(file,"#ifndef _V_%s_VQH_\n#define _V_%s_VQH_\n",base,base);
- fprintf(file,"#include \"vorbis/codebook.h\"\n\n");
-
+
/* first, the static vectors, then the book structure to tie it together. */
/* lengthlist */
- fprintf(file,"static long _huff_lengthlist_%s[] = {\n",base);
+ fprintf(file,"static const char _huff_lengthlist_%s[] = {\n",base);
for(j=0;j<vals;){
fprintf(file,"\t");
for(k=0;k<16 && j<vals;k++,j++)
- fprintf(file,"%2ld,",lengths[j]);
+ fprintf(file,"%2ld,",lengths[j]);
fprintf(file,"\n");
}
fprintf(file,"};\n\n");
-
+
/* the toplevel book */
- fprintf(file,"static static_codebook _huff_book_%s = {\n",base);
- fprintf(file,"\t%d, %ld, %d, %d, %d, %d,\n",
- subn,vals,0,0,0,0);
- fprintf(file,"\tNULL,\n");
- fprintf(file,"\t_huff_lengthlist_%s,\n",base);
+ fprintf(file,"static const static_codebook _huff_book_%s = {\n",base);
+ fprintf(file,"\t%d, %ld,\n",subn,vals);
+ fprintf(file,"\t(char *)_huff_lengthlist_%s,\n",base);
+ fprintf(file,"\t0, 0, 0, 0, 0,\n");
fprintf(file,"\tNULL,\n");
- fprintf(file,"};\n\n");
-
- fprintf(file,"\n#endif\n");
+
+ fprintf(file,"\t0\n};\n\n");
+
fclose(file);
fprintf(stderr,"Done. \n\n");
}
}
+
+
+
+
+
+
+
+
+
projects / platform / upstream / libvorbis.git / blobdiff