Revision 2f349de2 libavcodec/dsputil.c
libavcodec/dsputil.c | ||
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53, 60, 61, 54, 47, 55, 62, 63 |
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}; |
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/* not permutated inverse zigzag_direct + 1 for MMX quantizer */ |
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UINT16 __align8 inv_zigzag_direct16[64]; |
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/* not permutated zigzag_direct for MMX quantizer */ |
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UINT8 zigzag_direct_noperm[64]; |
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UINT8 ff_alternate_horizontal_scan[64] = { |
53 | 59 |
0, 1, 2, 3, 8, 9, 16, 17, |
54 | 60 |
10, 11, 4, 5, 6, 7, 15, 14, |
... | ... | |
83 | 89 |
0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F, |
84 | 90 |
}; |
85 | 91 |
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/* a*inverse[b]>>32 == a/b for all 0<=a<=65536 && 2<=b<=255 */ |
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UINT32 inverse[256]={ |
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0, 4294967295U,2147483648U,1431655766, 1073741824, 858993460, 715827883, 613566757, |
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95 |
536870912, 477218589, 429496730, 390451573, 357913942, 330382100, 306783379, 286331154, |
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96 |
268435456, 252645136, 238609295, 226050911, 214748365, 204522253, 195225787, 186737709, |
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97 |
178956971, 171798692, 165191050, 159072863, 153391690, 148102321, 143165577, 138547333, |
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98 |
134217728, 130150525, 126322568, 122713352, 119304648, 116080198, 113025456, 110127367, |
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99 |
107374183, 104755300, 102261127, 99882961, 97612894, 95443718, 93368855, 91382283, |
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100 |
89478486, 87652394, 85899346, 84215046, 82595525, 81037119, 79536432, 78090315, |
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76695845, 75350304, 74051161, 72796056, 71582789, 70409300, 69273667, 68174085, |
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102 |
67108864, 66076420, 65075263, 64103990, 63161284, 62245903, 61356676, 60492498, |
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103 |
59652324, 58835169, 58040099, 57266231, 56512728, 55778797, 55063684, 54366675, |
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104 |
53687092, 53024288, 52377650, 51746594, 51130564, 50529028, 49941481, 49367441, |
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105 |
48806447, 48258060, 47721859, 47197443, 46684428, 46182445, 45691142, 45210183, |
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106 |
44739243, 44278014, 43826197, 43383509, 42949673, 42524429, 42107523, 41698712, |
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107 |
41297763, 40904451, 40518560, 40139882, 39768216, 39403370, 39045158, 38693400, |
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108 |
38347923, 38008561, 37675152, 37347542, 37025581, 36709123, 36398028, 36092163, |
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109 |
35791395, 35495598, 35204650, 34918434, 34636834, 34359739, 34087043, 33818641, |
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110 |
33554432, 33294321, 33038210, 32786010, 32537632, 32292988, 32051995, 31814573, |
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111 |
31580642, 31350127, 31122952, 30899046, 30678338, 30460761, 30246249, 30034737, |
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112 |
29826162, 29620465, 29417585, 29217465, 29020050, 28825284, 28633116, 28443493, |
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113 |
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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121 |
19884108, 19792477, 19701685, 19611723, 19522579, 19434242, 19346700, 19259944, |
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122 |
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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}; |
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/* used to skip zeros at the end */ |
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UINT8 zigzag_end[64]; |
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... | ... | |
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else |
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for(i=0; i<64; i++) permutation[i]=i; |
517 | 559 |
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for(i=0; i<64; i++) inv_zigzag_direct16[zigzag_direct[i]]= i+1; |
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for(i=0; i<64; i++) zigzag_direct_noperm[i]= zigzag_direct[i]; |
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518 | 563 |
if (use_permuted_idct) { |
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/* permute for IDCT */ |
520 | 565 |
for(i=0;i<64;i++) { |
Also available in: Unified diff