1. 根目录:
2. sound
3. oss
4. ulaw.h

static unsigned char ulaw_dsp[] = {
     3,    7,   11,   15,   19,   23,   27,   31,
    35,   39,   43,   47,   51,   55,   59,   63,
    66,   68,   70,   72,   74,   76,   78,   80,
    82,   84,   86,   88,   90,   92,   94,   96,
    98,   99,  100,  101,  102,  103,  104,  105,
   106,  107,  108,  109,  110,  111,  112,  113,
   113,  114,  114,  115,  115,  116,  116,  117,
   117,  118,  118,  119,  119,  120,  120,  121,
   121,  121,  122,  122,  122,  122,  123,  123,
   123,  123,  124,  124,  124,  124,  125,  125,
   125,  125,  125,  125,  126,  126,  126,  126,
   126,  126,  126,  126,  127,  127,  127,  127,
   127,  127,  127,  127,  127,  127,  127,  127,
   128,  128,  128,  128,  128,  128,  128,  128,
   128,  128,  128,  128,  128,  128,  128,  128,
   128,  128,  128,  128,  128,  128,  128,  128,
   253,  249,  245,  241,  237,  233,  229,  225,
   221,  217,  213,  209,  205,  201,  197,  193,
   190,  188,  186,  184,  182,  180,  178,  176,
   174,  172,  170,  168,  166,  164,  162,  160,
   158,  157,  156,  155,  154,  153,  152,  151,
   150,  149,  148,  147,  146,  145,  144,  143,
   143,  142,  142,  141,  141,  140,  140,  139,
   139,  138,  138,  137,  137,  136,  136,  135,
   135,  135,  134,  134,  134,  134,  133,  133,
   133,  133,  132,  132,  132,  132,  131,  131,
   131,  131,  131,  131,  130,  130,  130,  130,
   130,  130,  130,  130,  129,  129,  129,  129,
   129,  129,  129,  129,  129,  129,  129,  129,
   128,  128,  128,  128,  128,  128,  128,  128,
   128,  128,  128,  128,  128,  128,  128,  128,
   128,  128,  128,  128,  128,  128,  128,  128,
};

static unsigned char dsp_ulaw[] = {
     0,    0,    0,    0,    0,    1,    1,    1,
     1,    2,    2,    2,    2,    3,    3,    3,
     3,    4,    4,    4,    4,    5,    5,    5,
     5,    6,    6,    6,    6,    7,    7,    7,
     7,    8,    8,    8,    8,    9,    9,    9,
     9,   10,   10,   10,   10,   11,   11,   11,
    11,   12,   12,   12,   12,   13,   13,   13,
    13,   14,   14,   14,   14,   15,   15,   15,
    15,   16,   16,   17,   17,   18,   18,   19,
    19,   20,   20,   21,   21,   22,   22,   23,
    23,   24,   24,   25,   25,   26,   26,   27,
    27,   28,   28,   29,   29,   30,   30,   31,
    31,   32,   33,   34,   35,   36,   37,   38,
    39,   40,   41,   42,   43,   44,   45,   46,
    47,   49,   51,   53,   55,   57,   59,   61,
    63,   66,   70,   74,   78,   84,   92,  104,
   254,  231,  219,  211,  205,  201,  197,  193,
   190,  188,  186,  184,  182,  180,  178,  176,
   175,  174,  173,  172,  171,  170,  169,  168,
   167,  166,  165,  164,  163,  162,  161,  160,
   159,  159,  158,  158,  157,  157,  156,  156,
   155,  155,  154,  154,  153,  153,  152,  152,
   151,  151,  150,  150,  149,  149,  148,  148,
   147,  147,  146,  146,  145,  145,  144,  144,
   143,  143,  143,  143,  142,  142,  142,  142,
   141,  141,  141,  141,  140,  140,  140,  140,
   139,  139,  139,  139,  138,  138,  138,  138,
   137,  137,  137,  137,  136,  136,  136,  136,
   135,  135,  135,  135,  134,  134,  134,  134,
   133,  133,  133,  133,  132,  132,  132,  132,
   131,  131,  131,  131,  130,  130,  130,  130,
   129,  129,  129,  129,  128,  128,  128,  128,
};