misc/libtremor/tremor/codebook.h
author sheepluva
Fri, 26 Oct 2012 17:05:12 +0200
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permissions -rw-r--r--
rollback of r08642c7da4a3b5e05be51a8b45995e799bbc4bbf ("add DLC button to net game room")
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/********************************************************************
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 *                                                                  *
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 * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE.   *
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 *                                                                  *
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 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
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 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
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 *                                                                  *
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 * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002    *
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 * BY THE Xiph.Org FOUNDATION http://www.xiph.org/                  *
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 *                                                                  *
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 ********************************************************************
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 function: basic shared codebook operations
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 ********************************************************************/
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#ifndef _V_CODEBOOK_H_
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#define _V_CODEBOOK_H_
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#include "ogg.h"
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typedef struct codebook{
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  long  dim;             /* codebook dimensions (elements per vector) */
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  long  entries;         /* codebook entries */
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  long  used_entries;    /* populated codebook entries */
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  int   dec_maxlength;
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  void *dec_table;
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  int   dec_nodeb;      
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  int   dec_leafw;      
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  int   dec_type;        /* 0 = entry number
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			    1 = packed vector of values
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			    2 = packed vector of column offsets, maptype 1 
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			    3 = scalar offset into value array,  maptype 2  */
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  ogg_int32_t q_min;  
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  int         q_minp;  
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  ogg_int32_t q_del;
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  int         q_delp;
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  int         q_seq;
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  int         q_bits;
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  int         q_pack;
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  void       *q_val;   
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} codebook;
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extern void vorbis_book_clear(codebook *b);
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extern int  vorbis_book_unpack(oggpack_buffer *b,codebook *c);
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extern long vorbis_book_decode(codebook *book, oggpack_buffer *b);
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extern long vorbis_book_decodevs_add(codebook *book, ogg_int32_t *a, 
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				     oggpack_buffer *b,int n,int point);
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extern long vorbis_book_decodev_set(codebook *book, ogg_int32_t *a, 
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				    oggpack_buffer *b,int n,int point);
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extern long vorbis_book_decodev_add(codebook *book, ogg_int32_t *a, 
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				    oggpack_buffer *b,int n,int point);
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extern long vorbis_book_decodevv_add(codebook *book, ogg_int32_t **a,
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				     long off,int ch, 
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				    oggpack_buffer *b,int n,int point);
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extern int _ilog(unsigned int v);
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#endif