Initial decoder implementation.

With minor contributions from:
 - Jean-Baptiste Kempf <jb@videolan.org>
 - Marvin Scholz <epirat07@gmail.com>
 - Hugo Beauzée-Luyssen <hugo@videolan.org>

1 files changed, 164 insertions, 0 deletions

diff --git a/src/dequant_tables.c b/src/dequant_tables.c
new file mode 100644
index 0000000..a8fe4c5
--- /dev/null
+++ b/src/dequant_tables.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright © 2018, VideoLAN and dav1d authors
+ * Copyright © 2018, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "src/dequant_tables.h"
+
+const uint16_t dav1d_dq_tbl[][QINDEX_RANGE][2] = {
+    {
+        {    4,    4, }, {    8,    8, }, {    8,    9, }, {    9,   10, },
+        {   10,   11, }, {   11,   12, }, {   12,   13, }, {   12,   14, },
+        {   13,   15, }, {   14,   16, }, {   15,   17, }, {   16,   18, },
+        {   17,   19, }, {   18,   20, }, {   19,   21, }, {   19,   22, },
+        {   20,   23, }, {   21,   24, }, {   22,   25, }, {   23,   26, },
+        {   24,   27, }, {   25,   28, }, {   26,   29, }, {   26,   30, },
+        {   27,   31, }, {   28,   32, }, {   29,   33, }, {   30,   34, },
+        {   31,   35, }, {   32,   36, }, {   32,   37, }, {   33,   38, },
+        {   34,   39, }, {   35,   40, }, {   36,   41, }, {   37,   42, },
+        {   38,   43, }, {   38,   44, }, {   39,   45, }, {   40,   46, },
+        {   41,   47, }, {   42,   48, }, {   43,   49, }, {   43,   50, },
+        {   44,   51, }, {   45,   52, }, {   46,   53, }, {   47,   54, },
+        {   48,   55, }, {   48,   56, }, {   49,   57, }, {   50,   58, },
+        {   51,   59, }, {   52,   60, }, {   53,   61, }, {   53,   62, },
+        {   54,   63, }, {   55,   64, }, {   56,   65, }, {   57,   66, },
+        {   57,   67, }, {   58,   68, }, {   59,   69, }, {   60,   70, },
+        {   61,   71, }, {   62,   72, }, {   62,   73, }, {   63,   74, },
+        {   64,   75, }, {   65,   76, }, {   66,   77, }, {   66,   78, },
+        {   67,   79, }, {   68,   80, }, {   69,   81, }, {   70,   82, },
+        {   70,   83, }, {   71,   84, }, {   72,   85, }, {   73,   86, },
+        {   74,   87, }, {   74,   88, }, {   75,   89, }, {   76,   90, },
+        {   77,   91, }, {   78,   92, }, {   78,   93, }, {   79,   94, },
+        {   80,   95, }, {   81,   96, }, {   81,   97, }, {   82,   98, },
+        {   83,   99, }, {   84,  100, }, {   85,  101, }, {   85,  102, },
+        {   87,  104, }, {   88,  106, }, {   90,  108, }, {   92,  110, },
+        {   93,  112, }, {   95,  114, }, {   96,  116, }, {   98,  118, },
+        {   99,  120, }, {  101,  122, }, {  102,  124, }, {  104,  126, },
+        {  105,  128, }, {  107,  130, }, {  108,  132, }, {  110,  134, },
+        {  111,  136, }, {  113,  138, }, {  114,  140, }, {  116,  142, },
+        {  117,  144, }, {  118,  146, }, {  120,  148, }, {  121,  150, },
+        {  123,  152, }, {  125,  155, }, {  127,  158, }, {  129,  161, },
+        {  131,  164, }, {  134,  167, }, {  136,  170, }, {  138,  173, },
+        {  140,  176, }, {  142,  179, }, {  144,  182, }, {  146,  185, },
+        {  148,  188, }, {  150,  191, }, {  152,  194, }, {  154,  197, },
+        {  156,  200, }, {  158,  203, }, {  161,  207, }, {  164,  211, },
+        {  166,  215, }, {  169,  219, }, {  172,  223, }, {  174,  227, },
+        {  177,  231, }, {  180,  235, }, {  182,  239, }, {  185,  243, },
+        {  187,  247, }, {  190,  251, }, {  192,  255, }, {  195,  260, },
+        {  199,  265, }, {  202,  270, }, {  205,  275, }, {  208,  280, },
+        {  211,  285, }, {  214,  290, }, {  217,  295, }, {  220,  300, },
+        {  223,  305, }, {  226,  311, }, {  230,  317, }, {  233,  323, },
+        {  237,  329, }, {  240,  335, }, {  243,  341, }, {  247,  347, },
+        {  250,  353, }, {  253,  359, }, {  257,  366, }, {  261,  373, },
+        {  265,  380, }, {  269,  387, }, {  272,  394, }, {  276,  401, },
+        {  280,  408, }, {  284,  416, }, {  288,  424, }, {  292,  432, },
+        {  296,  440, }, {  300,  448, }, {  304,  456, }, {  309,  465, },
+        {  313,  474, }, {  317,  483, }, {  322,  492, }, {  326,  501, },
+        {  330,  510, }, {  335,  520, }, {  340,  530, }, {  344,  540, },
+        {  349,  550, }, {  354,  560, }, {  359,  571, }, {  364,  582, },
+        {  369,  593, }, {  374,  604, }, {  379,  615, }, {  384,  627, },
+        {  389,  639, }, {  395,  651, }, {  400,  663, }, {  406,  676, },
+        {  411,  689, }, {  417,  702, }, {  423,  715, }, {  429,  729, },
+        {  435,  743, }, {  441,  757, }, {  447,  771, }, {  454,  786, },
+        {  461,  801, }, {  467,  816, }, {  475,  832, }, {  482,  848, },
+        {  489,  864, }, {  497,  881, }, {  505,  898, }, {  513,  915, },
+        {  522,  933, }, {  530,  951, }, {  539,  969, }, {  549,  988, },
+        {  559, 1007, }, {  569, 1026, }, {  579, 1046, }, {  590, 1066, },
+        {  602, 1087, }, {  614, 1108, }, {  626, 1129, }, {  640, 1151, },
+        {  654, 1173, }, {  668, 1196, }, {  684, 1219, }, {  700, 1243, },
+        {  717, 1267, }, {  736, 1292, }, {  755, 1317, }, {  775, 1343, },
+        {  796, 1369, }, {  819, 1396, }, {  843, 1423, }, {  869, 1451, },
+        {  896, 1479, }, {  925, 1508, }, {  955, 1537, }, {  988, 1567, },
+        { 1022, 1597, }, { 1058, 1628, }, { 1098, 1660, }, { 1139, 1692, },
+        { 1184, 1725, }, { 1232, 1759, }, { 1282, 1793, }, { 1336, 1828, },
+    }, {
+        {    4,    4, }, {    9,    9, }, {   10,   11, }, {   13,   13, },
+        {   15,   16, }, {   17,   18, }, {   20,   21, }, {   22,   24, },
+        {   25,   27, }, {   28,   30, }, {   31,   33, }, {   34,   37, },
+        {   37,   40, }, {   40,   44, }, {   43,   48, }, {   47,   51, },
+        {   50,   55, }, {   53,   59, }, {   57,   63, }, {   60,   67, },
+        {   64,   71, }, {   68,   75, }, {   71,   79, }, {   75,   83, },
+        {   78,   88, }, {   82,   92, }, {   86,   96, }, {   90,  100, },
+        {   93,  105, }, {   97,  109, }, {  101,  114, }, {  105,  118, },
+        {  109,  122, }, {  113,  127, }, {  116,  131, }, {  120,  136, },
+        {  124,  140, }, {  128,  145, }, {  132,  149, }, {  136,  154, },
+        {  140,  158, }, {  143,  163, }, {  147,  168, }, {  151,  172, },
+        {  155,  177, }, {  159,  181, }, {  163,  186, }, {  166,  190, },
+        {  170,  195, }, {  174,  199, }, {  178,  204, }, {  182,  208, },
+        {  185,  213, }, {  189,  217, }, {  193,  222, }, {  197,  226, },
+        {  200,  231, }, {  204,  235, }, {  208,  240, }, {  212,  244, },
+        {  215,  249, }, {  219,  253, }, {  223,  258, }, {  226,  262, },
+        {  230,  267, }, {  233,  271, }, {  237,  275, }, {  241,  280, },
+        {  244,  284, }, {  248,  289, }, {  251,  293, }, {  255,  297, },
+        {  259,  302, }, {  262,  306, }, {  266,  311, }, {  269,  315, },
+        {  273,  319, }, {  276,  324, }, {  280,  328, }, {  283,  332, },
+        {  287,  337, }, {  290,  341, }, {  293,  345, }, {  297,  349, },
+        {  300,  354, }, {  304,  358, }, {  307,  362, }, {  310,  367, },
+        {  314,  371, }, {  317,  375, }, {  321,  379, }, {  324,  384, },
+        {  327,  388, }, {  331,  392, }, {  334,  396, }, {  337,  401, },
+        {  343,  409, }, {  350,  417, }, {  356,  425, }, {  362,  433, },
+        {  369,  441, }, {  375,  449, }, {  381,  458, }, {  387,  466, },
+        {  394,  474, }, {  400,  482, }, {  406,  490, }, {  412,  498, },
+        {  418,  506, }, {  424,  514, }, {  430,  523, }, {  436,  531, },
+        {  442,  539, }, {  448,  547, }, {  454,  555, }, {  460,  563, },
+        {  466,  571, }, {  472,  579, }, {  478,  588, }, {  484,  596, },
+        {  490,  604, }, {  499,  616, }, {  507,  628, }, {  516,  640, },
+        {  525,  652, }, {  533,  664, }, {  542,  676, }, {  550,  688, },
+        {  559,  700, }, {  567,  713, }, {  576,  725, }, {  584,  737, },
+        {  592,  749, }, {  601,  761, }, {  609,  773, }, {  617,  785, },
+        {  625,  797, }, {  634,  809, }, {  644,  825, }, {  655,  841, },
+        {  666,  857, }, {  676,  873, }, {  687,  889, }, {  698,  905, },
+        {  708,  922, }, {  718,  938, }, {  729,  954, }, {  739,  970, },
+        {  749,  986, }, {  759, 1002, }, {  770, 1018, }, {  782, 1038, },
+        {  795, 1058, }, {  807, 1078, }, {  819, 1098, }, {  831, 1118, },
+        {  844, 1138, }, {  856, 1158, }, {  868, 1178, }, {  880, 1198, },
+        {  891, 1218, }, {  906, 1242, }, {  920, 1266, }, {  933, 1290, },
+        {  947, 1314, }, {  961, 1338, }, {  975, 1362, }, {  988, 1386, },
+        { 1001, 1411, }, { 1015, 1435, }, { 1030, 1463, }, { 1045, 1491, },
+        { 1061, 1519, }, { 1076, 1547, }, { 1090, 1575, }, { 1105, 1603, },
+        { 1120, 1631, }, { 1137, 1663, }, { 1153, 1695, }, { 1170, 1727, },
+        { 1186, 1759, }, { 1202, 1791, }, { 1218, 1823, }, { 1236, 1859, },
+        { 1253, 1895, }, { 1271, 1931, }, { 1288, 1967, }, { 1306, 2003, },
+        { 1323, 2039, }, { 1342, 2079, }, { 1361, 2119, }, { 1379, 2159, },
+        { 1398, 2199, }, { 1416, 2239, }, { 1436, 2283, }, { 1456, 2327, },
+        { 1476, 2371, }, { 1496, 2415, }, { 1516, 2459, }, { 1537, 2507, },
+        { 1559, 2555, }, { 1580, 2603, }, { 1601, 2651, }, { 1624, 2703, },
+        { 1647, 2755, }, { 1670, 2807, }, { 1692, 2859, }, { 1717, 2915, },
+        { 1741, 2971, }, { 1766, 3027, }, { 1791, 3083, }, { 1817, 3143, },
+        { 1844, 3203, }, { 1871, 3263, }, { 1900, 3327, }, { 1929, 3391, },
+        { 1958, 3455, }, { 1990, 3523, }, { 2021, 3591, }, { 2054, 3659, },
+        { 2088, 3731, }, { 2123, 3803, }, { 2159, 3876, }, { 2197, 3952, },
+        { 2236, 4028, }, { 2276, 4104, }, { 2319, 4184, }, { 2363, 4264, },
+        { 2410, 4348, }, { 2458, 4432, }, { 2508, 4516, }, { 2561, 4604, },
+        { 2616, 4692, }, { 2675, 4784, }, { 2737, 4876, }, { 2802, 4972, },
+        { 2871, 5068, }, { 2944, 5168, }, { 3020, 5268, }, { 3102, 5372, },
+        { 3188, 5476, }, { 3280, 5584, }, { 3375, 5692, }, { 3478, 5804, },
+        { 3586, 5916, }, { 3702, 6032, }, { 3823, 6148, }, { 3953, 6268, },
+        { 4089, 6388, }, { 4236, 6512, }, { 4394, 6640, }, { 4559, 6768, },
+        { 4737, 6900, }, { 4929, 7036, }, { 5130, 7172, }, { 5347, 7312, },
+    }
+};