release/src/router/libvorbis/vq/bookutil.h

   1 /********************************************************************
   2  *                                                                  *
   3  * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
   4  * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
   5  * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
   6  * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
   7  *                                                                  *
   8  * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001             *
   9  * by the Xiph.Org Foundation http://www.xiph.org/                  *
  10  *                                                                  *
  11  ********************************************************************
  12
  13  function: utility functions for loading .vqh and .vqd files
  14  last mod: $Id: bookutil.h 13293 2007-07-24 00:09:47Z xiphmont $
  15
  16  ********************************************************************/
  17
  18 #ifndef _V_BOOKUTIL_H_
  19 #define _V_BOOKUTIL_H_
  20
  21 #include <stdio.h>
  22 #include <sys/time.h>
  23
  24 #include "localcodebook.h"
  25
  26 extern char     *get_line(FILE *in);
  27 extern char     *setup_line(FILE *in);
  28 extern int       get_line_value(FILE *in,float *value);
  29 extern int       get_next_value(FILE *in,float *value);
  30 extern int       get_next_ivalue(FILE *in,long *ivalue);
  31 extern void      reset_next_value(void);
  32 extern int       get_vector(codebook *b,FILE *in,int start,int num,float *a);
  33 extern char     *find_seek_to(FILE *in,char *s);
  34
  35 extern codebook *codebook_load(char *filename);
  36 extern void write_codebook(FILE *out,char *name,const static_codebook *c);
  37
  38 extern void spinnit(char *s,int n);
  39 extern void build_tree_from_lengths(int vals, long *hist, long *lengths);
  40 extern void build_tree_from_lengths0(int vals, long *hist, long *lengths);
  41
  42 #endif
  43