* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
* *
* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 *
- * by the XIPHOPHORUS Company http://www.xiph.org/ *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
* *
********************************************************************
function: utility for finding the distribution in a data set
- last mod: $Id: distribution.c,v 1.9 2001/12/20 01:00:39 segher Exp $
********************************************************************/
switch(c->maptype){
case 1:
{
- /* lattice codebook. dump it. */
- int j,k;
- long maxcount=0;
- long **sort=calloc(bins,sizeof(long *));
- long base=c->lengthlist[0];
- countarray=calloc(bins,sizeof(long));
-
- for(i=0;i<bins;i++)sort[i]=c->quantlist+i;
- qsort(sort,bins,sizeof(long *),ascend);
-
- for(i=0;i<b->entries;i++)
- if(c->lengthlist[i]>base)base=c->lengthlist[i];
-
- /* dump a full, correlated count */
- for(j=0;j<b->entries;j++){
- if(c->lengthlist[j]){
- int indexdiv=1;
- printf("%4d: ",j);
- for(k=0;k<b->dim;k++){
- int index= (j/indexdiv)%bins;
- printf("%+3.1f,", c->quantlist[index]*_float32_unpack(c->q_delta)+
- _float32_unpack(c->q_min));
- indexdiv*=bins;
- }
- printf("\t|");
- for(k=0;k<base-c->lengthlist[j];k++)printf("*");
- printf("\n");
- }
- }
-
- /* do a rough count */
- for(j=0;j<b->entries;j++){
- int indexdiv=1;
- for(k=0;k<b->dim;k++){
- if(c->lengthlist[j]){
- int index= (j/indexdiv)%bins;
- countarray[index]+=(1<<(base-c->lengthlist[j]));
- indexdiv*=bins;
- }
- }
- }
-
- /* dump the count */
-
- {
- long maxcount=0,i,j;
- for(i=0;i<bins;i++)
- if(countarray[i]>maxcount)maxcount=countarray[i];
+ /* lattice codebook. dump it. */
+ int j,k;
+ long maxcount=0;
+ long **sort=calloc(bins,sizeof(long *));
+ long base=c->lengthlist[0];
+ countarray=calloc(bins,sizeof(long));
+
+ for(i=0;i<bins;i++)sort[i]=c->quantlist+i;
+ qsort(sort,bins,sizeof(long *),ascend);
+
+ for(i=0;i<b->entries;i++)
+ if(c->lengthlist[i]>base)base=c->lengthlist[i];
+
+ /* dump a full, correlated count */
+ for(j=0;j<b->entries;j++){
+ if(c->lengthlist[j]){
+ int indexdiv=1;
+ printf("%4d: ",j);
+ for(k=0;k<b->dim;k++){
+ int index= (j/indexdiv)%bins;
+ printf("%+3.1f,", c->quantlist[index]*_float32_unpack(c->q_delta)+
+ _float32_unpack(c->q_min));
+ indexdiv*=bins;
+ }
+ printf("\t|");
+ for(k=0;k<base-c->lengthlist[j];k++)printf("*");
+ printf("\n");
+ }
+ }
+
+ /* do a rough count */
+ for(j=0;j<b->entries;j++){
+ int indexdiv=1;
+ for(k=0;k<b->dim;k++){
+ if(c->lengthlist[j]){
+ int index= (j/indexdiv)%bins;
+ countarray[index]+=(1<<(base-c->lengthlist[j]));
+ indexdiv*=bins;
+ }
+ }
+ }
+
+ /* dump the count */
+
+ {
+ long maxcount=0,i,j;
+ for(i=0;i<bins;i++)
+ if(countarray[i]>maxcount)maxcount=countarray[i];
- for(i=0;i<bins;i++){
- int ptr=sort[i]-c->quantlist;
- int stars=rint(50./maxcount*countarray[ptr]);
- printf("%+08f (%8ld) |",c->quantlist[ptr]*delta+min,countarray[ptr]);
- for(j=0;j<stars;j++)printf("*");
- printf("\n");
- }
- }
+ for(i=0;i<bins;i++){
+ int ptr=sort[i]-c->quantlist;
+ int stars=rint(50./maxcount*countarray[ptr]);
+ printf("%+08f (%8ld) |",c->quantlist[ptr]*delta+min,countarray[ptr]);
+ for(j=0;j<stars;j++)printf("*");
+ printf("\n");
+ }
+ }
}
break;
case 2:
{
- /* trained, full mapping codebook. */
- printf("Can't do probability dump of a trained [type 2] codebook (yet)\n");
+ /* trained, full mapping codebook. */
+ printf("Can't do probability dump of a trained [type 2] codebook (yet)\n");
}
break;
}
if(!(lines&0xff))spinnit(buf,lines);
while(!flag && sscanf(line,"%f",&code)==1){
- line=strchr(line,',');
- min=max=code;
- flag=1;
+ line=strchr(line,',');
+ min=max=code;
+ flag=1;
}
while(line && sscanf(line,"%f",&code)==1){
- line=strchr(line,',');
- if(line)line++;
- if(code<min)min=code;
- if(code>max)max=code;
+ line=strchr(line,',');
+ if(line)line++;
+ if(code<min)min=code;
+ if(code>max)max=code;
}
line=setup_line(in);
if(bins<1){
if((int)(max-min)==min-max){
- bins=max-min;
+ bins=max-min;
}else{
- bins=25;
+ bins=25;
}
}
rewind(in);
line=setup_line(in);
while(line){
- float code;
- lines--;
- if(!(lines&0xff))spinnit("counting distribution. lines so far...",lines);
-
- while(line && sscanf(line,"%f",&code)==1){
- line=strchr(line,',');
- if(line)line++;
-
- code-=min;
- code/=(max-min);
- code*=bins;
- countarray[(int)rint(code)]++;
- total++;
- }
-
- line=setup_line(in);
+ float code;
+ lines--;
+ if(!(lines&0xff))spinnit("counting distribution. lines so far...",lines);
+
+ while(line && sscanf(line,"%f",&code)==1){
+ line=strchr(line,',');
+ if(line)line++;
+
+ code-=min;
+ code/=(max-min);
+ code*=bins;
+ countarray[(int)rint(code)]++;
+ total++;
+ }
+
+ line=setup_line(in);
}
/* make a pretty graph */
{
- long maxcount=0,i,j;
- for(i=0;i<bins+1;i++)
- if(countarray[i]>maxcount)maxcount=countarray[i];
-
- printf("\r \r");
- printf("Total scalars: %ld\n",total);
- for(i=0;i<bins+1;i++){
- int stars=rint(50./maxcount*countarray[i]);
- printf("%08f (%8ld) |",(max-min)/bins*i+min,countarray[i]);
- for(j=0;j<stars;j++)printf("*");
- printf("\n");
- }
+ long maxcount=0,i,j;
+ for(i=0;i<bins+1;i++)
+ if(countarray[i]>maxcount)maxcount=countarray[i];
+
+ printf("\r \r");
+ printf("Total scalars: %ld\n",total);
+ for(i=0;i<bins+1;i++){
+ int stars=rint(50./maxcount*countarray[i]);
+ printf("%08f (%8ld) |",(max-min)/bins*i+min,countarray[i]);
+ for(j=0;j<stars;j++)printf("*");
+ printf("\n");
+ }
}
}
projects / platform / upstream / libvorbis.git / blobdiff