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media/libtremor/lib/lsp_lookup.h@b8a032363ba2 (annotated)

media/libtremor/lib/lsp_lookup.h

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/********************************************************************
michael@0	2	* *
michael@0	3	* THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
michael@0	4	* *
michael@0	5	* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
michael@0	6	* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
michael@0	7	* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
michael@0	8	* *
michael@0	9	* THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
michael@0	10	* BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
michael@0	11	* *
michael@0	12	********************************************************************
michael@0	13
michael@0	14	function: lookup data
michael@0	15
michael@0	16	********************************************************************/
michael@0	17
michael@0	18	#ifndef _V_LOOKUP_DATA_H_
michael@0	19	#define _V_LOOKUP_DATA_H_
michael@0	20
michael@0	21	#include <ogg/os_types.h>
michael@0	22
michael@0	23	#define FROMdB_LOOKUP_SZ 35
michael@0	24	#define FROMdB2_LOOKUP_SZ 32
michael@0	25	#define FROMdB_SHIFT 5
michael@0	26	#define FROMdB2_SHIFT 3
michael@0	27	#define FROMdB2_MASK 31
michael@0	28
michael@0	29	static const ogg_int32_t FROMdB_LOOKUP[FROMdB_LOOKUP_SZ]={
michael@0	30	0x003fffff, 0x0028619b, 0x00197a96, 0x0010137a,
michael@0	31	0x000a24b0, 0x00066666, 0x000409c3, 0x00028c42,
michael@0	32	0x00019b8c, 0x000103ab, 0x0000a3d7, 0x00006760,
michael@0	33	0x0000413a, 0x00002928, 0x000019f8, 0x00001062,
michael@0	34	0x00000a56, 0x00000686, 0x0000041e, 0x00000299,
michael@0	35	0x000001a3, 0x00000109, 0x000000a7, 0x00000069,
michael@0	36	0x00000042, 0x0000002a, 0x0000001a, 0x00000011,
michael@0	37	0x0000000b, 0x00000007, 0x00000004, 0x00000003,
michael@0	38	0x00000002, 0x00000001, 0x00000001};
michael@0	39
michael@0	40	static const ogg_int32_t FROMdB2_LOOKUP[FROMdB2_LOOKUP_SZ]={
michael@0	41	0x000001fc, 0x000001f5, 0x000001ee, 0x000001e7,
michael@0	42	0x000001e0, 0x000001d9, 0x000001d2, 0x000001cc,
michael@0	43	0x000001c5, 0x000001bf, 0x000001b8, 0x000001b2,
michael@0	44	0x000001ac, 0x000001a6, 0x000001a0, 0x0000019a,
michael@0	45	0x00000194, 0x0000018e, 0x00000188, 0x00000183,
michael@0	46	0x0000017d, 0x00000178, 0x00000172, 0x0000016d,
michael@0	47	0x00000168, 0x00000163, 0x0000015e, 0x00000159,
michael@0	48	0x00000154, 0x0000014f, 0x0000014a, 0x00000145,
michael@0	49	};
michael@0	50
michael@0	51	#define INVSQ_LOOKUP_I_SHIFT 10
michael@0	52	#define INVSQ_LOOKUP_I_MASK 1023
michael@0	53	static const long INVSQ_LOOKUP_I[64+1]={
michael@0	54	92682, 91966, 91267, 90583,
michael@0	55	89915, 89261, 88621, 87995,
michael@0	56	87381, 86781, 86192, 85616,
michael@0	57	85051, 84497, 83953, 83420,
michael@0	58	82897, 82384, 81880, 81385,
michael@0	59	80899, 80422, 79953, 79492,
michael@0	60	79039, 78594, 78156, 77726,
michael@0	61	77302, 76885, 76475, 76072,
michael@0	62	75674, 75283, 74898, 74519,
michael@0	63	74146, 73778, 73415, 73058,
michael@0	64	72706, 72359, 72016, 71679,
michael@0	65	71347, 71019, 70695, 70376,
michael@0	66	70061, 69750, 69444, 69141,
michael@0	67	68842, 68548, 68256, 67969,
michael@0	68	67685, 67405, 67128, 66855,
michael@0	69	66585, 66318, 66054, 65794,
michael@0	70	65536,
michael@0	71	};
michael@0	72
michael@0	73	static const long INVSQ_LOOKUP_IDel[64]={
michael@0	74	716, 699, 684, 668,
michael@0	75	654, 640, 626, 614,
michael@0	76	600, 589, 576, 565,
michael@0	77	554, 544, 533, 523,
michael@0	78	513, 504, 495, 486,
michael@0	79	477, 469, 461, 453,
michael@0	80	445, 438, 430, 424,
michael@0	81	417, 410, 403, 398,
michael@0	82	391, 385, 379, 373,
michael@0	83	368, 363, 357, 352,
michael@0	84	347, 343, 337, 332,
michael@0	85	328, 324, 319, 315,
michael@0	86	311, 306, 303, 299,
michael@0	87	294, 292, 287, 284,
michael@0	88	280, 277, 273, 270,
michael@0	89	267, 264, 260, 258,
michael@0	90	};
michael@0	91
michael@0	92	#define COS_LOOKUP_I_SHIFT 9
michael@0	93	#define COS_LOOKUP_I_MASK 511
michael@0	94	#define COS_LOOKUP_I_SZ 128
michael@0	95	static const ogg_int32_t COS_LOOKUP_I[COS_LOOKUP_I_SZ+1]={
michael@0	96	16384, 16379, 16364, 16340,
michael@0	97	16305, 16261, 16207, 16143,
michael@0	98	16069, 15986, 15893, 15791,
michael@0	99	15679, 15557, 15426, 15286,
michael@0	100	15137, 14978, 14811, 14635,
michael@0	101	14449, 14256, 14053, 13842,
michael@0	102	13623, 13395, 13160, 12916,
michael@0	103	12665, 12406, 12140, 11866,
michael@0	104	11585, 11297, 11003, 10702,
michael@0	105	10394, 10080, 9760, 9434,
michael@0	106	9102, 8765, 8423, 8076,
michael@0	107	7723, 7366, 7005, 6639,
michael@0	108	6270, 5897, 5520, 5139,
michael@0	109	4756, 4370, 3981, 3590,
michael@0	110	3196, 2801, 2404, 2006,
michael@0	111	1606, 1205, 804, 402,
michael@0	112	0, -401, -803, -1204,
michael@0	113	-1605, -2005, -2403, -2800,
michael@0	114	-3195, -3589, -3980, -4369,
michael@0	115	-4755, -5138, -5519, -5896,
michael@0	116	-6269, -6638, -7004, -7365,
michael@0	117	-7722, -8075, -8422, -8764,
michael@0	118	-9101, -9433, -9759, -10079,
michael@0	119	-10393, -10701, -11002, -11296,
michael@0	120	-11584, -11865, -12139, -12405,
michael@0	121	-12664, -12915, -13159, -13394,
michael@0	122	-13622, -13841, -14052, -14255,
michael@0	123	-14448, -14634, -14810, -14977,
michael@0	124	-15136, -15285, -15425, -15556,
michael@0	125	-15678, -15790, -15892, -15985,
michael@0	126	-16068, -16142, -16206, -16260,
michael@0	127	-16304, -16339, -16363, -16378,
michael@0	128	-16383,
michael@0	129	};
michael@0	130
michael@0	131	#endif
michael@0	132
michael@0	133
michael@0	134
michael@0	135
michael@0	136