ref: e728637b8be3f5d0704a501aed5ac6e44897a584
parent: 7d9288f5f86e1b0a03ae5a555dc034e7055845ca
author: Angie Chiang <angiebird@google.com>
date: Wed Jun 19 10:51:26 EDT 2019
Integerize log2_approximation() Change-Id: If645bf6a90f4bfb5a51ca0a78b88d1eb5bedbec2
--- a/vp9/encoder/vp9_mcomp.c
+++ b/vp9/encoder/vp9_mcomp.c
@@ -1733,180 +1733,184 @@
#if CONFIG_NON_GREEDY_MV
#define LOG2_TABLE_SIZE 1024
-static const double log2_table[LOG2_TABLE_SIZE] = {- 0.000000, // This is a dummy value
- 0.000000, 1.000000, 1.584963, 2.000000, 2.321928, 2.584963, 2.807355,
- 3.000000, 3.169925, 3.321928, 3.459432, 3.584963, 3.700440, 3.807355,
- 3.906891, 4.000000, 4.087463, 4.169925, 4.247928, 4.321928, 4.392317,
- 4.459432, 4.523562, 4.584963, 4.643856, 4.700440, 4.754888, 4.807355,
- 4.857981, 4.906891, 4.954196, 5.000000, 5.044394, 5.087463, 5.129283,
- 5.169925, 5.209453, 5.247928, 5.285402, 5.321928, 5.357552, 5.392317,
- 5.426265, 5.459432, 5.491853, 5.523562, 5.554589, 5.584963, 5.614710,
- 5.643856, 5.672425, 5.700440, 5.727920, 5.754888, 5.781360, 5.807355,
- 5.832890, 5.857981, 5.882643, 5.906891, 5.930737, 5.954196, 5.977280,
- 6.000000, 6.022368, 6.044394, 6.066089, 6.087463, 6.108524, 6.129283,
- 6.149747, 6.169925, 6.189825, 6.209453, 6.228819, 6.247928, 6.266787,
- 6.285402, 6.303781, 6.321928, 6.339850, 6.357552, 6.375039, 6.392317,
- 6.409391, 6.426265, 6.442943, 6.459432, 6.475733, 6.491853, 6.507795,
- 6.523562, 6.539159, 6.554589, 6.569856, 6.584963, 6.599913, 6.614710,
- 6.629357, 6.643856, 6.658211, 6.672425, 6.686501, 6.700440, 6.714246,
- 6.727920, 6.741467, 6.754888, 6.768184, 6.781360, 6.794416, 6.807355,
- 6.820179, 6.832890, 6.845490, 6.857981, 6.870365, 6.882643, 6.894818,
- 6.906891, 6.918863, 6.930737, 6.942515, 6.954196, 6.965784, 6.977280,
- 6.988685, 7.000000, 7.011227, 7.022368, 7.033423, 7.044394, 7.055282,
- 7.066089, 7.076816, 7.087463, 7.098032, 7.108524, 7.118941, 7.129283,
- 7.139551, 7.149747, 7.159871, 7.169925, 7.179909, 7.189825, 7.199672,
- 7.209453, 7.219169, 7.228819, 7.238405, 7.247928, 7.257388, 7.266787,
- 7.276124, 7.285402, 7.294621, 7.303781, 7.312883, 7.321928, 7.330917,
- 7.339850, 7.348728, 7.357552, 7.366322, 7.375039, 7.383704, 7.392317,
- 7.400879, 7.409391, 7.417853, 7.426265, 7.434628, 7.442943, 7.451211,
- 7.459432, 7.467606, 7.475733, 7.483816, 7.491853, 7.499846, 7.507795,
- 7.515700, 7.523562, 7.531381, 7.539159, 7.546894, 7.554589, 7.562242,
- 7.569856, 7.577429, 7.584963, 7.592457, 7.599913, 7.607330, 7.614710,
- 7.622052, 7.629357, 7.636625, 7.643856, 7.651052, 7.658211, 7.665336,
- 7.672425, 7.679480, 7.686501, 7.693487, 7.700440, 7.707359, 7.714246,
- 7.721099, 7.727920, 7.734710, 7.741467, 7.748193, 7.754888, 7.761551,
- 7.768184, 7.774787, 7.781360, 7.787903, 7.794416, 7.800900, 7.807355,
- 7.813781, 7.820179, 7.826548, 7.832890, 7.839204, 7.845490, 7.851749,
- 7.857981, 7.864186, 7.870365, 7.876517, 7.882643, 7.888743, 7.894818,
- 7.900867, 7.906891, 7.912889, 7.918863, 7.924813, 7.930737, 7.936638,
- 7.942515, 7.948367, 7.954196, 7.960002, 7.965784, 7.971544, 7.977280,
- 7.982994, 7.988685, 7.994353, 8.000000, 8.005625, 8.011227, 8.016808,
- 8.022368, 8.027906, 8.033423, 8.038919, 8.044394, 8.049849, 8.055282,
- 8.060696, 8.066089, 8.071462, 8.076816, 8.082149, 8.087463, 8.092757,
- 8.098032, 8.103288, 8.108524, 8.113742, 8.118941, 8.124121, 8.129283,
- 8.134426, 8.139551, 8.144658, 8.149747, 8.154818, 8.159871, 8.164907,
- 8.169925, 8.174926, 8.179909, 8.184875, 8.189825, 8.194757, 8.199672,
- 8.204571, 8.209453, 8.214319, 8.219169, 8.224002, 8.228819, 8.233620,
- 8.238405, 8.243174, 8.247928, 8.252665, 8.257388, 8.262095, 8.266787,
- 8.271463, 8.276124, 8.280771, 8.285402, 8.290019, 8.294621, 8.299208,
- 8.303781, 8.308339, 8.312883, 8.317413, 8.321928, 8.326429, 8.330917,
- 8.335390, 8.339850, 8.344296, 8.348728, 8.353147, 8.357552, 8.361944,
- 8.366322, 8.370687, 8.375039, 8.379378, 8.383704, 8.388017, 8.392317,
- 8.396605, 8.400879, 8.405141, 8.409391, 8.413628, 8.417853, 8.422065,
- 8.426265, 8.430453, 8.434628, 8.438792, 8.442943, 8.447083, 8.451211,
- 8.455327, 8.459432, 8.463524, 8.467606, 8.471675, 8.475733, 8.479780,
- 8.483816, 8.487840, 8.491853, 8.495855, 8.499846, 8.503826, 8.507795,
- 8.511753, 8.515700, 8.519636, 8.523562, 8.527477, 8.531381, 8.535275,
- 8.539159, 8.543032, 8.546894, 8.550747, 8.554589, 8.558421, 8.562242,
- 8.566054, 8.569856, 8.573647, 8.577429, 8.581201, 8.584963, 8.588715,
- 8.592457, 8.596190, 8.599913, 8.603626, 8.607330, 8.611025, 8.614710,
- 8.618386, 8.622052, 8.625709, 8.629357, 8.632995, 8.636625, 8.640245,
- 8.643856, 8.647458, 8.651052, 8.654636, 8.658211, 8.661778, 8.665336,
- 8.668885, 8.672425, 8.675957, 8.679480, 8.682995, 8.686501, 8.689998,
- 8.693487, 8.696968, 8.700440, 8.703904, 8.707359, 8.710806, 8.714246,
- 8.717676, 8.721099, 8.724514, 8.727920, 8.731319, 8.734710, 8.738092,
- 8.741467, 8.744834, 8.748193, 8.751544, 8.754888, 8.758223, 8.761551,
- 8.764872, 8.768184, 8.771489, 8.774787, 8.778077, 8.781360, 8.784635,
- 8.787903, 8.791163, 8.794416, 8.797662, 8.800900, 8.804131, 8.807355,
- 8.810572, 8.813781, 8.816984, 8.820179, 8.823367, 8.826548, 8.829723,
- 8.832890, 8.836050, 8.839204, 8.842350, 8.845490, 8.848623, 8.851749,
- 8.854868, 8.857981, 8.861087, 8.864186, 8.867279, 8.870365, 8.873444,
- 8.876517, 8.879583, 8.882643, 8.885696, 8.888743, 8.891784, 8.894818,
- 8.897845, 8.900867, 8.903882, 8.906891, 8.909893, 8.912889, 8.915879,
- 8.918863, 8.921841, 8.924813, 8.927778, 8.930737, 8.933691, 8.936638,
- 8.939579, 8.942515, 8.945444, 8.948367, 8.951285, 8.954196, 8.957102,
- 8.960002, 8.962896, 8.965784, 8.968667, 8.971544, 8.974415, 8.977280,
- 8.980140, 8.982994, 8.985842, 8.988685, 8.991522, 8.994353, 8.997179,
- 9.000000, 9.002815, 9.005625, 9.008429, 9.011227, 9.014020, 9.016808,
- 9.019591, 9.022368, 9.025140, 9.027906, 9.030667, 9.033423, 9.036174,
- 9.038919, 9.041659, 9.044394, 9.047124, 9.049849, 9.052568, 9.055282,
- 9.057992, 9.060696, 9.063395, 9.066089, 9.068778, 9.071462, 9.074141,
- 9.076816, 9.079485, 9.082149, 9.084808, 9.087463, 9.090112, 9.092757,
- 9.095397, 9.098032, 9.100662, 9.103288, 9.105909, 9.108524, 9.111136,
- 9.113742, 9.116344, 9.118941, 9.121534, 9.124121, 9.126704, 9.129283,
- 9.131857, 9.134426, 9.136991, 9.139551, 9.142107, 9.144658, 9.147205,
- 9.149747, 9.152285, 9.154818, 9.157347, 9.159871, 9.162391, 9.164907,
- 9.167418, 9.169925, 9.172428, 9.174926, 9.177420, 9.179909, 9.182394,
- 9.184875, 9.187352, 9.189825, 9.192293, 9.194757, 9.197217, 9.199672,
- 9.202124, 9.204571, 9.207014, 9.209453, 9.211888, 9.214319, 9.216746,
- 9.219169, 9.221587, 9.224002, 9.226412, 9.228819, 9.231221, 9.233620,
- 9.236014, 9.238405, 9.240791, 9.243174, 9.245553, 9.247928, 9.250298,
- 9.252665, 9.255029, 9.257388, 9.259743, 9.262095, 9.264443, 9.266787,
- 9.269127, 9.271463, 9.273796, 9.276124, 9.278449, 9.280771, 9.283088,
- 9.285402, 9.287712, 9.290019, 9.292322, 9.294621, 9.296916, 9.299208,
- 9.301496, 9.303781, 9.306062, 9.308339, 9.310613, 9.312883, 9.315150,
- 9.317413, 9.319672, 9.321928, 9.324181, 9.326429, 9.328675, 9.330917,
- 9.333155, 9.335390, 9.337622, 9.339850, 9.342075, 9.344296, 9.346514,
- 9.348728, 9.350939, 9.353147, 9.355351, 9.357552, 9.359750, 9.361944,
- 9.364135, 9.366322, 9.368506, 9.370687, 9.372865, 9.375039, 9.377211,
- 9.379378, 9.381543, 9.383704, 9.385862, 9.388017, 9.390169, 9.392317,
- 9.394463, 9.396605, 9.398744, 9.400879, 9.403012, 9.405141, 9.407268,
- 9.409391, 9.411511, 9.413628, 9.415742, 9.417853, 9.419960, 9.422065,
- 9.424166, 9.426265, 9.428360, 9.430453, 9.432542, 9.434628, 9.436712,
- 9.438792, 9.440869, 9.442943, 9.445015, 9.447083, 9.449149, 9.451211,
- 9.453271, 9.455327, 9.457381, 9.459432, 9.461479, 9.463524, 9.465566,
- 9.467606, 9.469642, 9.471675, 9.473706, 9.475733, 9.477758, 9.479780,
- 9.481799, 9.483816, 9.485829, 9.487840, 9.489848, 9.491853, 9.493855,
- 9.495855, 9.497852, 9.499846, 9.501837, 9.503826, 9.505812, 9.507795,
- 9.509775, 9.511753, 9.513728, 9.515700, 9.517669, 9.519636, 9.521600,
- 9.523562, 9.525521, 9.527477, 9.529431, 9.531381, 9.533330, 9.535275,
- 9.537218, 9.539159, 9.541097, 9.543032, 9.544964, 9.546894, 9.548822,
- 9.550747, 9.552669, 9.554589, 9.556506, 9.558421, 9.560333, 9.562242,
- 9.564149, 9.566054, 9.567956, 9.569856, 9.571753, 9.573647, 9.575539,
- 9.577429, 9.579316, 9.581201, 9.583083, 9.584963, 9.586840, 9.588715,
- 9.590587, 9.592457, 9.594325, 9.596190, 9.598053, 9.599913, 9.601771,
- 9.603626, 9.605480, 9.607330, 9.609179, 9.611025, 9.612868, 9.614710,
- 9.616549, 9.618386, 9.620220, 9.622052, 9.623881, 9.625709, 9.627534,
- 9.629357, 9.631177, 9.632995, 9.634811, 9.636625, 9.638436, 9.640245,
- 9.642052, 9.643856, 9.645658, 9.647458, 9.649256, 9.651052, 9.652845,
- 9.654636, 9.656425, 9.658211, 9.659996, 9.661778, 9.663558, 9.665336,
- 9.667112, 9.668885, 9.670656, 9.672425, 9.674192, 9.675957, 9.677720,
- 9.679480, 9.681238, 9.682995, 9.684749, 9.686501, 9.688250, 9.689998,
- 9.691744, 9.693487, 9.695228, 9.696968, 9.698705, 9.700440, 9.702173,
- 9.703904, 9.705632, 9.707359, 9.709084, 9.710806, 9.712527, 9.714246,
- 9.715962, 9.717676, 9.719389, 9.721099, 9.722808, 9.724514, 9.726218,
- 9.727920, 9.729621, 9.731319, 9.733015, 9.734710, 9.736402, 9.738092,
- 9.739781, 9.741467, 9.743151, 9.744834, 9.746514, 9.748193, 9.749869,
- 9.751544, 9.753217, 9.754888, 9.756556, 9.758223, 9.759888, 9.761551,
- 9.763212, 9.764872, 9.766529, 9.768184, 9.769838, 9.771489, 9.773139,
- 9.774787, 9.776433, 9.778077, 9.779719, 9.781360, 9.782998, 9.784635,
- 9.786270, 9.787903, 9.789534, 9.791163, 9.792790, 9.794416, 9.796040,
- 9.797662, 9.799282, 9.800900, 9.802516, 9.804131, 9.805744, 9.807355,
- 9.808964, 9.810572, 9.812177, 9.813781, 9.815383, 9.816984, 9.818582,
- 9.820179, 9.821774, 9.823367, 9.824959, 9.826548, 9.828136, 9.829723,
- 9.831307, 9.832890, 9.834471, 9.836050, 9.837628, 9.839204, 9.840778,
- 9.842350, 9.843921, 9.845490, 9.847057, 9.848623, 9.850187, 9.851749,
- 9.853310, 9.854868, 9.856426, 9.857981, 9.859535, 9.861087, 9.862637,
- 9.864186, 9.865733, 9.867279, 9.868823, 9.870365, 9.871905, 9.873444,
- 9.874981, 9.876517, 9.878051, 9.879583, 9.881114, 9.882643, 9.884171,
- 9.885696, 9.887221, 9.888743, 9.890264, 9.891784, 9.893302, 9.894818,
- 9.896332, 9.897845, 9.899357, 9.900867, 9.902375, 9.903882, 9.905387,
- 9.906891, 9.908393, 9.909893, 9.911392, 9.912889, 9.914385, 9.915879,
- 9.917372, 9.918863, 9.920353, 9.921841, 9.923327, 9.924813, 9.926296,
- 9.927778, 9.929258, 9.930737, 9.932215, 9.933691, 9.935165, 9.936638,
- 9.938109, 9.939579, 9.941048, 9.942515, 9.943980, 9.945444, 9.946906,
- 9.948367, 9.949827, 9.951285, 9.952741, 9.954196, 9.955650, 9.957102,
- 9.958553, 9.960002, 9.961450, 9.962896, 9.964341, 9.965784, 9.967226,
- 9.968667, 9.970106, 9.971544, 9.972980, 9.974415, 9.975848, 9.977280,
- 9.978710, 9.980140, 9.981567, 9.982994, 9.984418, 9.985842, 9.987264,
- 9.988685, 9.990104, 9.991522, 9.992938, 9.994353, 9.995767, 9.997179,
- 9.998590,
+static const int log2_table[LOG2_TABLE_SIZE] = {+ 0, // This is a dummy value
+ 0, 1048576, 1661954, 2097152, 2434718, 2710530, 2943725,
+ 3145728, 3323907, 3483294, 3627477, 3759106, 3880192, 3992301,
+ 4096672, 4194304, 4286015, 4372483, 4454275, 4531870, 4605679,
+ 4676053, 4743299, 4807682, 4869436, 4928768, 4985861, 5040877,
+ 5093962, 5145248, 5194851, 5242880, 5289431, 5334591, 5378443,
+ 5421059, 5462508, 5502851, 5542146, 5580446, 5617800, 5654255,
+ 5689851, 5724629, 5758625, 5791875, 5824409, 5856258, 5887450,
+ 5918012, 5947969, 5977344, 6006160, 6034437, 6062195, 6089453,
+ 6116228, 6142538, 6168398, 6193824, 6218829, 6243427, 6267632,
+ 6291456, 6314910, 6338007, 6360756, 6383167, 6405252, 6427019,
+ 6448477, 6469635, 6490501, 6511084, 6531390, 6551427, 6571202,
+ 6590722, 6609993, 6629022, 6647815, 6666376, 6684713, 6702831,
+ 6720734, 6738427, 6755916, 6773205, 6790299, 6807201, 6823917,
+ 6840451, 6856805, 6872985, 6888993, 6904834, 6920510, 6936026,
+ 6951384, 6966588, 6981641, 6996545, 7011304, 7025920, 7040397,
+ 7054736, 7068940, 7083013, 7096956, 7110771, 7124461, 7138029,
+ 7151476, 7164804, 7178017, 7191114, 7204100, 7216974, 7229740,
+ 7242400, 7254954, 7267405, 7279754, 7292003, 7304154, 7316208,
+ 7328167, 7340032, 7351805, 7363486, 7375079, 7386583, 7398000,
+ 7409332, 7420579, 7431743, 7442826, 7453828, 7464751, 7475595,
+ 7486362, 7497053, 7507669, 7518211, 7528680, 7539077, 7549404,
+ 7559660, 7569847, 7579966, 7590017, 7600003, 7609923, 7619778,
+ 7629569, 7639298, 7648964, 7658569, 7668114, 7677598, 7687023,
+ 7696391, 7705700, 7714952, 7724149, 7733289, 7742375, 7751407,
+ 7760385, 7769310, 7778182, 7787003, 7795773, 7804492, 7813161,
+ 7821781, 7830352, 7838875, 7847350, 7855777, 7864158, 7872493,
+ 7880782, 7889027, 7897226, 7905381, 7913492, 7921561, 7929586,
+ 7937569, 7945510, 7953410, 7961268, 7969086, 7976864, 7984602,
+ 7992301, 7999960, 8007581, 8015164, 8022709, 8030217, 8037687,
+ 8045121, 8052519, 8059880, 8067206, 8074496, 8081752, 8088973,
+ 8096159, 8103312, 8110431, 8117516, 8124569, 8131589, 8138576,
+ 8145532, 8152455, 8159347, 8166208, 8173037, 8179836, 8186605,
+ 8193343, 8200052, 8206731, 8213380, 8220001, 8226593, 8233156,
+ 8239690, 8246197, 8252676, 8259127, 8265550, 8271947, 8278316,
+ 8284659, 8290976, 8297266, 8303530, 8309768, 8315981, 8322168,
+ 8328330, 8334467, 8340579, 8346667, 8352730, 8358769, 8364784,
+ 8370775, 8376743, 8382687, 8388608, 8394506, 8400381, 8406233,
+ 8412062, 8417870, 8423655, 8429418, 8435159, 8440878, 8446576,
+ 8452252, 8457908, 8463542, 8469155, 8474748, 8480319, 8485871,
+ 8491402, 8496913, 8502404, 8507875, 8513327, 8518759, 8524171,
+ 8529564, 8534938, 8540293, 8545629, 8550947, 8556245, 8561525,
+ 8566787, 8572031, 8577256, 8582464, 8587653, 8592825, 8597980,
+ 8603116, 8608236, 8613338, 8618423, 8623491, 8628542, 8633576,
+ 8638593, 8643594, 8648579, 8653547, 8658499, 8663434, 8668354,
+ 8673258, 8678145, 8683017, 8687874, 8692715, 8697540, 8702350,
+ 8707145, 8711925, 8716690, 8721439, 8726174, 8730894, 8735599,
+ 8740290, 8744967, 8749628, 8754276, 8758909, 8763528, 8768134,
+ 8772725, 8777302, 8781865, 8786415, 8790951, 8795474, 8799983,
+ 8804478, 8808961, 8813430, 8817886, 8822328, 8826758, 8831175,
+ 8835579, 8839970, 8844349, 8848715, 8853068, 8857409, 8861737,
+ 8866053, 8870357, 8874649, 8878928, 8883195, 8887451, 8891694,
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+ 10484282,
};
-static double log2_approximation(int v) {+#define LOG2_PRECISION 20
+static int64_t log2_approximation(int64_t v) {assert(v > 0);
if (v < LOG2_TABLE_SIZE) {return log2_table[v];
} else {// use linear approximation when v >= 2^10
- const double slope = 0.001409; // slope = 1 / (log(2) * 1024)
+ const int slope =
+ 1477; // slope = 1 / (log(2) * 1024) * (1 << LOG2_PRECISION)
assert(LOG2_TABLE_SIZE == 1 << 10);
- return slope * (v - LOG2_TABLE_SIZE) + 10;
+
+ return slope * (v - LOG2_TABLE_SIZE) + (10 << LOG2_PRECISION);
}
}
+
double vp9_nb_mvs_inconsistency(const MV *mv, const int_mv *nb_mvs,
int mv_num) {int i;
int update = 0;
- double best_cost = 0;
+ int64_t best_cost = 0;
vpx_clear_system_state();
for (i = 0; i < mv_num; ++i) { if (nb_mvs[i].as_int != INVALID_MV) {MV nb_mv = nb_mvs[i].as_mv;
- const int row_diff = abs(mv->row - nb_mv.row);
- const int col_diff = abs(mv->col - nb_mv.col);
- double cost =
+ const int64_t row_diff = abs(mv->row - nb_mv.row);
+ const int64_t col_diff = abs(mv->col - nb_mv.col);
+ const int64_t cost =
log2_approximation(1 + row_diff * row_diff + col_diff * col_diff);
if (update == 0) {best_cost = cost;
@@ -1916,7 +1920,7 @@
}
}
}
- return best_cost;
+ return best_cost * 1. / (1 << LOG2_PRECISION);
}
static double exhaustive_mesh_search_new(const MACROBLOCK *x, MV *best_mv,