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monitord / lame-3.97 / libmp3lame / .svn / text-base / tables.h.svn-base
@root root on 23 Jan 2012 2 KB Migration from SVN revision 455
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  1. /*
  2.  *	MPEG layer 3 tables include file
  3.  *
  4.  *	Copyright (c) 1999 Albert L Faber
  5.  *
  6.  * This library is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Library General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2 of the License, or (at your option) any later version.
  10.  *
  11.  * This library is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
  14.  * Library General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Library General Public
  17.  * License along with this library; if not, write to the
  18.  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19.  * Boston, MA 02111-1307, USA.
  20.  */
  21.  
  22. #ifndef LAME_TABLES_H
  23. #define LAME_TABLES_H
  24.  
  25. #include "machine.h"
  26.  
  27. typedef struct {
  28.     unsigned char  no;
  29.     unsigned char  width;
  30.     unsigned char  minval_2;
  31.     float          quiet_thr;
  32.     float          norm;
  33.     float          bark;
  34. } type1_t;
  35.  
  36. typedef struct {
  37.     unsigned char  no;
  38.     unsigned char  width;
  39.     float          quiet_thr;
  40.     float          norm;
  41.     float          SNR;
  42.     float          bark;
  43. } type2_t;
  44.  
  45. typedef struct {
  46.     unsigned int  no     :  5;
  47.     unsigned int  cbw    :  3;
  48.     unsigned int  bu     :  6;
  49.     unsigned int  bo     :  6;
  50.     unsigned int  w1_576 : 10;
  51.     unsigned int  w2_576 : 10;
  52. } type34_t;
  53.  
  54. typedef struct {
  55.     size_t                 len1;
  56.     const type1_t*  const  tab1;
  57.     size_t                 len2;
  58.     const type2_t*  const  tab2;
  59.     size_t                 len3;
  60.     const type34_t* const  tab3;
  61.     size_t                 len4;
  62.     const type34_t* const  tab4;
  63. } type5_t;
  64.  
  65. extern const type5_t  table5 [6];
  66.  
  67.  
  68.  
  69. #define HTN	34
  70.  
  71. struct huffcodetab {
  72.     const int    xlen; 	        /* max. x-index+			*/ 
  73.     const int    linmax;	/* max number to be stored in linbits	*/
  74.     const short*   table;	        /* pointer to array[xlen][ylen]		*/
  75.     const char*  hlen;	        /* pointer to array[xlen][ylen]		*/
  76. };
  77.  
  78. extern const struct huffcodetab ht [HTN];
  79.     /* global memory block			*/
  80.     /* array of all huffcodtable headers	*/
  81.     /* 0..31 Huffman code table 0..31		*/
  82.     /* 32,33 count1-tables			*/
  83.  
  84. extern const char t32l [];
  85. extern const char t33l [];
  86.  
  87. extern const unsigned int   largetbl    [16*16];
  88. extern const unsigned int   table23       [3*3];
  89. extern const unsigned int   table56       [4*4];
  90.  
  91. extern const int scfsi_band[5];
  92.  
  93. #endif /* LAME_TABLES_H */
  94.