diff options
Diffstat (limited to 'media/libtremor/lib/lsp_lookup.h')
| -rw-r--r-- | media/libtremor/lib/lsp_lookup.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/media/libtremor/lib/lsp_lookup.h b/media/libtremor/lib/lsp_lookup.h new file mode 100644 index 000000000..7162392b8 --- /dev/null +++ b/media/libtremor/lib/lsp_lookup.h @@ -0,0 +1,136 @@ +/******************************************************************** + * * + * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. * + * * + * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * + * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * + * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * + * * + * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 * + * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ * + * * + ******************************************************************** + + function: lookup data + + ********************************************************************/ + +#ifndef _V_LOOKUP_DATA_H_ +#define _V_LOOKUP_DATA_H_ + +#include <ogg/os_types.h> + +#define FROMdB_LOOKUP_SZ 35 +#define FROMdB2_LOOKUP_SZ 32 +#define FROMdB_SHIFT 5 +#define FROMdB2_SHIFT 3 +#define FROMdB2_MASK 31 + +static const ogg_int32_t FROMdB_LOOKUP[FROMdB_LOOKUP_SZ]={ + 0x003fffff, 0x0028619b, 0x00197a96, 0x0010137a, + 0x000a24b0, 0x00066666, 0x000409c3, 0x00028c42, + 0x00019b8c, 0x000103ab, 0x0000a3d7, 0x00006760, + 0x0000413a, 0x00002928, 0x000019f8, 0x00001062, + 0x00000a56, 0x00000686, 0x0000041e, 0x00000299, + 0x000001a3, 0x00000109, 0x000000a7, 0x00000069, + 0x00000042, 0x0000002a, 0x0000001a, 0x00000011, + 0x0000000b, 0x00000007, 0x00000004, 0x00000003, + 0x00000002, 0x00000001, 0x00000001}; + +static const ogg_int32_t FROMdB2_LOOKUP[FROMdB2_LOOKUP_SZ]={ + 0x000001fc, 0x000001f5, 0x000001ee, 0x000001e7, + 0x000001e0, 0x000001d9, 0x000001d2, 0x000001cc, + 0x000001c5, 0x000001bf, 0x000001b8, 0x000001b2, + 0x000001ac, 0x000001a6, 0x000001a0, 0x0000019a, + 0x00000194, 0x0000018e, 0x00000188, 0x00000183, + 0x0000017d, 0x00000178, 0x00000172, 0x0000016d, + 0x00000168, 0x00000163, 0x0000015e, 0x00000159, + 0x00000154, 0x0000014f, 0x0000014a, 0x00000145, +}; + +#define INVSQ_LOOKUP_I_SHIFT 10 +#define INVSQ_LOOKUP_I_MASK 1023 +static const long INVSQ_LOOKUP_I[64+1]={ + 92682, 91966, 91267, 90583, + 89915, 89261, 88621, 87995, + 87381, 86781, 86192, 85616, + 85051, 84497, 83953, 83420, + 82897, 82384, 81880, 81385, + 80899, 80422, 79953, 79492, + 79039, 78594, 78156, 77726, + 77302, 76885, 76475, 76072, + 75674, 75283, 74898, 74519, + 74146, 73778, 73415, 73058, + 72706, 72359, 72016, 71679, + 71347, 71019, 70695, 70376, + 70061, 69750, 69444, 69141, + 68842, 68548, 68256, 67969, + 67685, 67405, 67128, 66855, + 66585, 66318, 66054, 65794, + 65536, +}; + +static const long INVSQ_LOOKUP_IDel[64]={ + 716, 699, 684, 668, + 654, 640, 626, 614, + 600, 589, 576, 565, + 554, 544, 533, 523, + 513, 504, 495, 486, + 477, 469, 461, 453, + 445, 438, 430, 424, + 417, 410, 403, 398, + 391, 385, 379, 373, + 368, 363, 357, 352, + 347, 343, 337, 332, + 328, 324, 319, 315, + 311, 306, 303, 299, + 294, 292, 287, 284, + 280, 277, 273, 270, + 267, 264, 260, 258, +}; + +#define COS_LOOKUP_I_SHIFT 9 +#define COS_LOOKUP_I_MASK 511 +#define COS_LOOKUP_I_SZ 128 +static const ogg_int32_t COS_LOOKUP_I[COS_LOOKUP_I_SZ+1]={ + 16384, 16379, 16364, 16340, + 16305, 16261, 16207, 16143, + 16069, 15986, 15893, 15791, + 15679, 15557, 15426, 15286, + 15137, 14978, 14811, 14635, + 14449, 14256, 14053, 13842, + 13623, 13395, 13160, 12916, + 12665, 12406, 12140, 11866, + 11585, 11297, 11003, 10702, + 10394, 10080, 9760, 9434, + 9102, 8765, 8423, 8076, + 7723, 7366, 7005, 6639, + 6270, 5897, 5520, 5139, + 4756, 4370, 3981, 3590, + 3196, 2801, 2404, 2006, + 1606, 1205, 804, 402, + 0, -401, -803, -1204, + -1605, -2005, -2403, -2800, + -3195, -3589, -3980, -4369, + -4755, -5138, -5519, -5896, + -6269, -6638, -7004, -7365, + -7722, -8075, -8422, -8764, + -9101, -9433, -9759, -10079, + -10393, -10701, -11002, -11296, + -11584, -11865, -12139, -12405, + -12664, -12915, -13159, -13394, + -13622, -13841, -14052, -14255, + -14448, -14634, -14810, -14977, + -15136, -15285, -15425, -15556, + -15678, -15790, -15892, -15985, + -16068, -16142, -16206, -16260, + -16304, -16339, -16363, -16378, + -16383, +}; + +#endif + + + + + |