tab_lbc.c

嵌入式linux系统的网络编程（C＋＋） 在ARM上实现视频会议 此程序获得全国研究生电子大赛一等奖 压缩包内为全部源码

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   } ;

/*
**  LspDcTable: LSP long term Dc component
**
*/

Word16   LspDcTable[LpcOrder] = {
   0x0c3b ,
   0x1271 ,
   0x1e0a ,
   0x2a36 ,
   0x3630 ,
   0x406f ,
   0x4d28 ,
   0x56f4 ,
   0x638c ,
   0x6c46 ,
   } ;

/*
**  BandInfoTable:
**
**  Purpose:
**      Used to index in arrays. Called by LSP sub vector 
**      quantization routines.
**
**  Table Structure:
**      The unquantized LSP vector, quantized LSP vector, and residual
**      LSP error vector are each divided into three subvectors.  
**              The table format is as follows:
**
**      1st pair corresponds to subvector 0
**      2nd pair corresponds to subvector 1
**      3rd pair corresponds to subvector 2
**
**      The 1st slot in each pair is used to index the location of 
**      the vector in a 10-element array.  For example, for subvector
**      1, dimensions [0,..,2] get automatically mapped to array
**      location [3,..,5], and for subvector 3, dimensions
**      [0,..,3] automatically get mapped to array location [6,..,9].
**
**      The 2nd slot in each pair corresponds to the dimension of
**      the subvector
*/

Word16   BandInfoTable[LspQntBands][2] = {
   { 0,3},
   { 3,3},
   { 6,4}
   } ;

/*
**  Band0Tb8:
**
**  Purpose:
**      Vector Quantize the first 3-vector of the 10 LSP parameters.
**
**  Table Structure:
**      8 bit, 256 entry table.
*/

Word16   Band0Tb8[LspCbSize*3] = {
      0,      0,      0,
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   -723,  -2011,  -2213,
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  -1051,  -1523,  -1766,
  -1083,  -1622,  -2300,
   -777,  -1377,  -2147,
   -935,  -1467,  -2763,
   -802,  -1327,  -3471,
   -935,  -1959,  -3999,
   -240,    -89,    222,
   -661,   -257,   -160,
   -994,   -466,   -419,
   -188,   -164,   -278,
   -342,   -512,   -415,
   -607,   -511,   -797,
     16,     19,   -716,
    374,    425,   -972,
   -346,    245,   -282,
   -265,    506,   -754,
   -620,   -147,   1955,
   -742,   -860,   2597,
   -150,   -352,   2704,
    305,    880,   1954,
    123,    731,   2766,
   -348,    765,   3327,
    618,    221,   3258,
   -178,    -47,   4219,
    393,   1304,   3842,
    698,   1702,   4801,
     63,   -584,   1229,
   -215,   -732,   1704,
    172,   -335,   1909,
     -2,    216,   1797,
    353,    127,   2205,
  -1208,    188,     11,
   -513,    -75,   -683,
   -973,    222,   -646,
   -616,   -843,   -388,
   -950,  -1113,   -359,
  -1431,   -623,   -705,
  -1398,  -1063,   -178,
    -45,   -461,     35,
     -9,   -657,   -216,
    127,  -1078,     95,
   -950,  -1156,    584,
  -1480,  -1494,    449,
   -120,   -705,    516,
   -368,   -961,    727,
   -378,   -526,    973,
   -793,   -614,    676,
   -801,   -755,   1287,
  -1476,   -340,   1636,
   -505,  -1254,   1543,
  -1243,  -1622,   1532,
   -776,  -1477,   -655,
  -1151,  -1296,   -823,
  -1153,  -1672,  -1124,
  -1291,  -2003,  -1702,
   -622,  -1283,     57,
   -471,  -1611,    509,
  -1060,  -1570,   -139,
   -873,  -2156,   -536,
  -1716,  -2021,   -364,
  -2150,  -3218,  -1291,
  -1248,  -1945,  -2904,
  -1215,  -2633,  -2855,
    167,   -244,     84,
    349,   -412,   -217,
    -40,   -352,    632,
    227,   -529,    405,
     68,   -383,   -443,
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    179,   -317,   -998,
    450,   -291,   -996,
    555,    195,   -525,
    784,    272,   -831,
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     82,   -536,  -1357,
    238,   -172,  -1354,
    422,   -268,  -1841,
    297,   -737,  -2079,
   -111,   -801,   -598,
      1,   -668,   -984,
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   -151,   -778,  -1834,
    -93,   -352,  -1746,
   -568,   -640,  -1821,
   -509,   -941,  -2183,
    464,   -815,  -1250,
     79,  -1133,  -1597,
   -184,  -1353,  -2123,
   -196,   -410,  -2427,
   -192,   -833,  -2810,
   -259,  -1382,  -3045,
   -217,      4,  -1166,
   -800,   -325,  -1219,
   -363,   -830,   -898,
   -661,  -1134,   -960,
   -386,   -980,  -1501,