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d15c21e5fa
Earlier versions of for instance of libavcodec expect this symbol to be present in libavutil. This commit can be reverted after the next major bump. New shared builds of avcodec will link to the internal copy of the table within that library, so those builds won't rely on this table being present in avutil any longer either. Signed-off-by: Martin Storsjö <martin@martin.st>
77 lines
5.2 KiB
C
77 lines
5.2 KiB
C
/*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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/* a*inverse[b]>>32 == a/b for all 0<=a<=16909558 && 2<=b<=256
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* for a>16909558, is an overestimate by less than 1 part in 1<<24 */
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const uint32_t ff_inverse[257]={
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0, 4294967295U,2147483648U,1431655766, 1073741824, 858993460, 715827883, 613566757,
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536870912, 477218589, 429496730, 390451573, 357913942, 330382100, 306783379, 286331154,
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268435456, 252645136, 238609295, 226050911, 214748365, 204522253, 195225787, 186737709,
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178956971, 171798692, 165191050, 159072863, 153391690, 148102321, 143165577, 138547333,
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134217728, 130150525, 126322568, 122713352, 119304648, 116080198, 113025456, 110127367,
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107374183, 104755300, 102261127, 99882961, 97612894, 95443718, 93368855, 91382283,
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89478486, 87652394, 85899346, 84215046, 82595525, 81037119, 79536432, 78090315,
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76695845, 75350304, 74051161, 72796056, 71582789, 70409300, 69273667, 68174085,
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67108864, 66076420, 65075263, 64103990, 63161284, 62245903, 61356676, 60492498,
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59652324, 58835169, 58040099, 57266231, 56512728, 55778797, 55063684, 54366675,
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53687092, 53024288, 52377650, 51746594, 51130564, 50529028, 49941481, 49367441,
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48806447, 48258060, 47721859, 47197443, 46684428, 46182445, 45691142, 45210183,
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44739243, 44278014, 43826197, 43383509, 42949673, 42524429, 42107523, 41698712,
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41297763, 40904451, 40518560, 40139882, 39768216, 39403370, 39045158, 38693400,
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38347923, 38008561, 37675152, 37347542, 37025581, 36709123, 36398028, 36092163,
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35791395, 35495598, 35204650, 34918434, 34636834, 34359739, 34087043, 33818641,
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33554432, 33294321, 33038210, 32786010, 32537632, 32292988, 32051995, 31814573,
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31580642, 31350127, 31122952, 30899046, 30678338, 30460761, 30246249, 30034737,
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29826162, 29620465, 29417585, 29217465, 29020050, 28825284, 28633116, 28443493,
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28256364, 28071682, 27889399, 27709467, 27531842, 27356480, 27183338, 27012373,
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26843546, 26676816, 26512144, 26349493, 26188825, 26030105, 25873297, 25718368,
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25565282, 25414008, 25264514, 25116768, 24970741, 24826401, 24683721, 24542671,
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24403224, 24265352, 24129030, 23994231, 23860930, 23729102, 23598722, 23469767,
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23342214, 23216040, 23091223, 22967740, 22845571, 22724695, 22605092, 22486740,
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22369622, 22253717, 22139007, 22025474, 21913099, 21801865, 21691755, 21582751,
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21474837, 21367997, 21262215, 21157475, 21053762, 20951060, 20849356, 20748635,
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20648882, 20550083, 20452226, 20355296, 20259280, 20164166, 20069941, 19976593,
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19884108, 19792477, 19701685, 19611723, 19522579, 19434242, 19346700, 19259944,
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19173962, 19088744, 19004281, 18920561, 18837576, 18755316, 18673771, 18592933,
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18512791, 18433337, 18354562, 18276457, 18199014, 18122225, 18046082, 17970575,
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17895698, 17821442, 17747799, 17674763, 17602325, 17530479, 17459217, 17388532,
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17318417, 17248865, 17179870, 17111424, 17043522, 16976156, 16909321, 16843010,
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16777216
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};
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const uint8_t ff_reverse[256] = {
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0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
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0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
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0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
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0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
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0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
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0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
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0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
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0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
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0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
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0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
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0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
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0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
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0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
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0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
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0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
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0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
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};
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