Refine/clean up scan orders

Inter scan orders for 4x4, 8x8, 16x16 are modified to use
row/col scans for DCT_ADST combinations.
New 4:1 transforms 4x16/16x4 use row col scans
for DCT_ADST combinations.
The h2, v2, qtr scans are removed for 32x32, since they are
not used.

Change-Id: I4dab6b111858e14b3c5b92b5c46124c69e06808d
diff --git a/av1/common/scan.c b/av1/common/scan.c
index f5b07e3..3b30a83 100644
--- a/av1/common/scan.c
+++ b/av1/common/scan.c
@@ -903,255 +903,6 @@
   1020, 989,  958,  927, 1021, 990,  959,  1022, 991,  1023,
 };
 
-// Scan over two rectangular vertical partitions one after the other
-DECLARE_ALIGNED(16, static const int16_t, v2_scan_32x32[1024]) = {
-  0,    1,    32,   33,   2,    64,   34,   65,   66,   3,    96,   35,   97,
-  67,   98,   4,    128,  36,   129,  99,   68,   130,  5,    100,  131,  160,
-  37,   161,  69,   162,  132,  101,  163,  6,    192,  38,   193,  70,   194,
-  133,  164,  102,  195,  7,    224,  39,   165,  225,  134,  196,  71,   226,
-  103,  227,  166,  197,  8,    256,  40,   135,  228,  257,  72,   258,  198,
-  104,  259,  167,  229,  136,  260,  9,    288,  41,   289,  73,   199,  230,
-  290,  168,  261,  105,  291,  137,  292,  231,  10,   200,  262,  320,  42,
-  321,  74,   322,  169,  293,  106,  323,  232,  263,  138,  324,  201,  294,
-  11,   352,  43,   353,  75,   170,  325,  354,  264,  107,  233,  295,  355,
-  202,  326,  139,  356,  12,   384,  44,   265,  296,  385,  171,  357,  76,
-  386,  234,  327,  108,  387,  203,  358,  140,  388,  297,  266,  328,  13,
-  172,  389,  416,  45,   235,  359,  417,  77,   418,  109,  419,  204,  390,
-  298,  329,  141,  267,  360,  420,  236,  391,  173,  421,  14,   448,  46,
-  449,  78,   330,  450,  299,  361,  110,  205,  422,  451,  268,  392,  142,
-  452,  237,  423,  174,  331,  362,  453,  15,   300,  393,  480,  47,   481,
-  79,   482,  206,  454,  269,  424,  111,  483,  143,  484,  363,  332,  394,
-  238,  455,  175,  301,  425,  485,  512,  513,  270,  456,  514,  207,  486,
-  364,  395,  515,  333,  426,  516,  239,  487,  302,  457,  517,  396,  271,
-  488,  544,  365,  427,  545,  518,  546,  334,  458,  547,  519,  548,  303,
-  489,  397,  428,  549,  366,  459,  520,  576,  335,  490,  550,  577,  578,
-  579,  521,  429,  551,  398,  460,  580,  367,  491,  581,  552,  522,  582,
-  608,  609,  430,  461,  610,  399,  492,  553,  611,  583,  523,  612,  613,
-  584,  554,  462,  431,  493,  614,  524,  640,  641,  642,  585,  643,  555,
-  615,  644,  463,  494,  586,  525,  616,  645,  556,  646,  672,  617,  673,
-  587,  674,  647,  495,  675,  526,  676,  557,  618,  648,  677,  588,  678,
-  527,  649,  619,  704,  558,  705,  706,  679,  589,  707,  650,  708,  620,
-  680,  709,  559,  590,  710,  651,  681,  736,  621,  737,  711,  738,  739,
-  682,  652,  740,  712,  591,  741,  622,  683,  713,  742,  653,  768,  769,
-  743,  770,  714,  684,  771,  623,  772,  744,  654,  773,  715,  685,  745,
-  774,  655,  775,  800,  801,  716,  746,  802,  803,  686,  776,  804,  747,
-  805,  717,  777,  806,  687,  748,  807,  778,  832,  833,  718,  834,  835,
-  808,  836,  779,  749,  837,  809,  719,  838,  780,  750,  810,  839,  864,
-  865,  866,  867,  840,  781,  868,  811,  751,  869,  841,  870,  812,  782,
-  842,  871,  896,  897,  898,  872,  899,  813,  843,  900,  783,  901,  873,
-  844,  902,  814,  874,  903,  928,  929,  845,  930,  904,  815,  875,  931,
-  932,  905,  933,  846,  876,  934,  906,  935,  877,  960,  847,  961,  962,
-  907,  936,  963,  964,  937,  878,  965,  908,  966,  938,  967,  909,  879,
-  992,  939,  993,  968,  994,  995,  996,  910,  969,  940,  997,  998,  970,
-  911,  941,  999,  971,  1000, 942,  1001, 972,  1002, 943,  973,  1003, 974,
-  1004, 975,  1005, 1006, 1007, 16,   48,   80,   112,  144,  176,  17,   49,
-  208,  81,   113,  145,  240,  177,  272,  18,   50,   209,  82,   114,  304,
-  241,  146,  178,  273,  336,  210,  19,   51,   83,   115,  305,  242,  147,
-  368,  179,  274,  337,  211,  20,   400,  52,   84,   306,  116,  243,  369,
-  148,  338,  180,  275,  432,  401,  212,  21,   53,   307,  85,   370,  244,
-  117,  464,  149,  433,  339,  276,  181,  402,  213,  308,  496,  371,  22,
-  54,   465,  86,   245,  118,  434,  150,  340,  277,  403,  182,  528,  497,
-  214,  466,  372,  309,  23,   55,   435,  87,   246,  119,  341,  404,  151,
-  529,  560,  278,  498,  183,  467,  373,  215,  310,  436,  24,   56,   247,
-  561,  88,   530,  592,  342,  120,  405,  499,  152,  279,  468,  184,  374,
-  311,  437,  216,  562,  593,  531,  624,  25,   248,  500,  57,   406,  89,
-  343,  121,  469,  280,  153,  594,  185,  375,  563,  625,  438,  532,  656,
-  312,  217,  501,  407,  249,  26,   344,  58,   90,   470,  122,  595,  626,
-  281,  564,  657,  154,  376,  533,  688,  439,  186,  313,  502,  218,  408,
-  627,  596,  658,  250,  345,  471,  27,   59,   565,  689,  91,   123,  282,
-  534,  720,  155,  440,  377,  187,  503,  314,  628,  659,  219,  597,  690,
-  409,  472,  566,  721,  346,  251,  28,   60,   535,  752,  92,   124,  283,
-  441,  378,  156,  660,  504,  629,  691,  598,  722,  188,  315,  567,  753,
-  220,  410,  473,  347,  536,  784,  252,  29,   661,  692,  61,   93,   442,
-  630,  723,  284,  125,  379,  505,  599,  754,  157,  316,  568,  785,  189,
-  474,  411,  221,  537,  816,  693,  348,  662,  724,  253,  631,  755,  443,
-  30,   600,  786,  62,   506,  94,   285,  380,  126,  569,  817,  158,  317,
-  190,  475,  694,  725,  412,  663,  756,  538,  848,  222,  632,  787,  349,
-  254,  601,  818,  444,  507,  31,   63,   381,  286,  95,   570,  849,  726,
-  127,  695,  757,  664,  788,  159,  476,  318,  413,  539,  880,  191,  633,
-  819,  223,  350,  602,  850,  508,  255,  445,  727,  758,  696,  789,  571,
-  881,  382,  287,  665,  820,  477,  634,  851,  540,  912,  319,  414,  603,
-  882,  759,  728,  790,  351,  509,  697,  821,  446,  572,  913,  666,  852,
-  383,  635,  883,  478,  541,  944,  415,  760,  791,  604,  914,  729,  822,
-  698,  853,  510,  667,  884,  447,  573,  945,  636,  915,  792,  761,  823,
-  542,  976,  479,  730,  854,  605,  946,  699,  885,  668,  916,  511,  574,
-  977,  793,  824,  637,  947,  762,  855,  731,  886,  543,  1008, 606,  978,
-  700,  917,  669,  948,  575,  825,  1009, 794,  856,  763,  887,  638,  979,
-  732,  918,  701,  949,  607,  1010, 670,  980,  826,  857,  795,  888,  764,
-  919,  639,  1011, 733,  950,  702,  981,  858,  827,  889,  796,  920,  671,
-  1012, 765,  951,  734,  982,  703,  1013, 859,  890,  828,  921,  797,  952,
-  766,  983,  735,  1014, 891,  860,  922,  829,  953,  798,  984,  767,  1015,
-  892,  923,  861,  954,  830,  985,  799,  1016, 924,  893,  955,  862,  986,
-  831,  1017, 925,  956,  894,  987,  863,  1018, 957,  926,  988,  895,  1019,
-  958,  989,  927,  1020, 990,  959,  1021, 991,  1022, 1023,
-};
-
-// Scan over two rectangular horizontal partitions one after the other
-DECLARE_ALIGNED(16, static const int16_t, h2_scan_32x32[1024]) = {
-  0,    1,    32,   33,   2,    64,   34,   65,   66,   3,    96,   35,   97,
-  67,   98,   4,    128,  36,   129,  99,   68,   130,  5,    100,  131,  160,
-  37,   161,  69,   162,  132,  101,  163,  6,    192,  38,   193,  70,   194,
-  133,  164,  102,  195,  7,    224,  39,   165,  225,  134,  196,  71,   226,
-  103,  227,  166,  197,  8,    256,  40,   135,  228,  257,  72,   258,  198,
-  104,  259,  167,  229,  136,  260,  9,    288,  41,   289,  73,   199,  230,
-  290,  168,  261,  105,  291,  137,  292,  231,  10,   200,  262,  320,  42,
-  321,  74,   322,  169,  293,  106,  323,  232,  263,  138,  324,  201,  294,
-  11,   352,  43,   353,  75,   170,  325,  354,  264,  107,  233,  295,  355,
-  202,  326,  139,  356,  12,   384,  44,   265,  296,  385,  171,  357,  76,
-  386,  234,  327,  108,  387,  203,  358,  140,  388,  297,  266,  328,  13,
-  172,  389,  416,  45,   235,  359,  417,  77,   418,  109,  419,  204,  390,
-  298,  329,  141,  267,  360,  420,  236,  391,  173,  421,  14,   448,  46,
-  449,  78,   330,  450,  299,  361,  110,  205,  422,  451,  268,  392,  142,
-  452,  237,  423,  174,  331,  362,  453,  15,   300,  393,  480,  47,   481,
-  79,   482,  206,  454,  269,  424,  111,  483,  143,  484,  363,  332,  394,
-  238,  455,  175,  301,  425,  485,  16,   48,   80,   270,  456,  207,  486,
-  112,  364,  395,  333,  426,  144,  239,  487,  302,  457,  176,  396,  17,
-  271,  488,  49,   365,  427,  208,  81,   334,  458,  113,  145,  240,  303,
-  489,  397,  428,  177,  366,  459,  272,  18,   50,   209,  335,  490,  82,
-  114,  304,  241,  429,  146,  398,  460,  367,  491,  178,  273,  336,  210,
-  19,   51,   83,   430,  461,  399,  492,  115,  305,  242,  147,  368,  179,
-  274,  337,  462,  431,  493,  211,  20,   400,  52,   84,   306,  116,  243,
-  369,  148,  463,  494,  338,  180,  275,  432,  401,  212,  21,   53,   307,
-  85,   370,  244,  117,  495,  464,  149,  433,  339,  276,  181,  402,  213,
-  308,  496,  371,  22,   54,   465,  86,   245,  118,  434,  150,  340,  277,
-  403,  182,  497,  214,  466,  372,  309,  23,   55,   435,  87,   246,  119,
-  341,  404,  151,  278,  498,  183,  467,  373,  215,  310,  436,  24,   56,
-  247,  88,   342,  120,  405,  499,  152,  279,  468,  184,  374,  311,  437,
-  216,  25,   248,  500,  57,   406,  89,   343,  121,  469,  280,  153,  185,
-  375,  438,  312,  217,  501,  407,  249,  26,   344,  58,   90,   470,  122,
-  281,  154,  376,  439,  186,  313,  502,  218,  408,  250,  345,  471,  27,
-  59,   91,   123,  282,  155,  440,  377,  187,  503,  314,  219,  409,  472,
-  346,  251,  28,   60,   92,   124,  283,  441,  378,  156,  504,  188,  315,
-  220,  410,  473,  347,  252,  29,   61,   93,   442,  284,  125,  379,  505,
-  157,  316,  189,  474,  411,  221,  348,  253,  443,  30,   62,   506,  94,
-  285,  380,  126,  158,  317,  190,  475,  412,  222,  349,  254,  444,  507,
-  31,   63,   381,  286,  95,   127,  159,  476,  318,  413,  191,  223,  350,
-  508,  255,  445,  382,  287,  477,  319,  414,  351,  509,  446,  383,  478,
-  415,  510,  447,  479,  511,  512,  513,  514,  515,  516,  517,  544,  545,
-  518,  546,  547,  519,  548,  549,  520,  576,  550,  577,  578,  579,  521,
-  551,  580,  581,  552,  522,  582,  608,  609,  610,  553,  611,  583,  523,
-  612,  613,  584,  554,  614,  524,  640,  641,  642,  585,  643,  555,  615,
-  644,  586,  525,  616,  645,  556,  646,  672,  617,  673,  587,  674,  647,
-  675,  526,  676,  557,  618,  648,  677,  588,  678,  527,  649,  619,  704,
-  558,  705,  706,  679,  589,  707,  650,  708,  620,  680,  709,  528,  559,
-  590,  710,  651,  681,  736,  621,  737,  711,  738,  739,  682,  652,  529,
-  560,  740,  712,  591,  741,  622,  683,  713,  742,  653,  768,  769,  561,
-  743,  530,  592,  770,  714,  684,  771,  623,  772,  744,  654,  773,  715,
-  685,  745,  774,  562,  593,  531,  624,  655,  775,  800,  801,  716,  746,
-  802,  803,  686,  776,  804,  594,  563,  625,  747,  805,  717,  532,  656,
-  777,  806,  687,  748,  807,  778,  832,  833,  718,  834,  595,  626,  835,
-  564,  657,  808,  836,  533,  688,  779,  749,  837,  809,  719,  838,  780,
-  627,  596,  658,  750,  810,  839,  864,  565,  689,  865,  866,  867,  534,
-  720,  840,  781,  868,  811,  751,  869,  841,  628,  659,  597,  690,  870,
-  812,  782,  566,  721,  842,  871,  896,  535,  752,  897,  898,  872,  899,
-  813,  843,  660,  900,  783,  629,  691,  598,  722,  901,  873,  567,  753,
-  844,  902,  814,  874,  536,  784,  903,  661,  692,  928,  929,  630,  723,
-  845,  930,  904,  815,  875,  931,  599,  754,  932,  568,  785,  905,  933,
-  846,  876,  934,  537,  816,  693,  662,  724,  906,  631,  755,  935,  877,
-  600,  786,  960,  847,  961,  962,  907,  936,  963,  569,  817,  964,  937,
-  694,  725,  878,  965,  908,  663,  756,  538,  848,  966,  632,  787,  938,
-  601,  818,  967,  909,  879,  992,  939,  993,  968,  570,  849,  994,  726,
-  695,  757,  995,  664,  788,  996,  910,  969,  539,  880,  940,  633,  819,
-  997,  998,  602,  850,  970,  911,  941,  999,  727,  758,  696,  789,  571,
-  881,  971,  665,  820,  1000, 634,  851,  942,  540,  912,  1001, 972,  603,
-  882,  759,  728,  790,  1002, 697,  821,  943,  973,  572,  913,  666,  852,
-  1003, 635,  883,  974,  541,  944,  760,  791,  1004, 604,  914,  729,  822,
-  698,  853,  975,  667,  884,  573,  945,  1005, 636,  915,  792,  761,  823,
-  542,  976,  1006, 730,  854,  605,  946,  699,  885,  668,  916,  1007, 574,
-  977,  793,  824,  637,  947,  762,  855,  731,  886,  543,  1008, 606,  978,
-  700,  917,  669,  948,  575,  825,  1009, 794,  856,  763,  887,  638,  979,
-  732,  918,  701,  949,  607,  1010, 670,  980,  826,  857,  795,  888,  764,
-  919,  639,  1011, 733,  950,  702,  981,  858,  827,  889,  796,  920,  671,
-  1012, 765,  951,  734,  982,  703,  1013, 859,  890,  828,  921,  797,  952,
-  766,  983,  735,  1014, 891,  860,  922,  829,  953,  798,  984,  767,  1015,
-  892,  923,  861,  954,  830,  985,  799,  1016, 924,  893,  955,  862,  986,
-  831,  1017, 925,  956,  894,  987,  863,  1018, 957,  926,  988,  895,  1019,
-  958,  989,  927,  1020, 990,  959,  1021, 991,  1022, 1023,
-};
-
-// Scan where the top left quarter is scanned first
-DECLARE_ALIGNED(16, static const int16_t, qtr_scan_32x32[1024]) = {
-  0,    1,    32,   33,   2,    64,   34,   65,   66,   3,    96,   35,   97,
-  67,   98,   4,    128,  36,   129,  99,   68,   130,  5,    100,  131,  160,
-  37,   161,  69,   162,  132,  101,  163,  6,    192,  38,   193,  70,   194,
-  133,  164,  102,  195,  7,    224,  39,   165,  225,  134,  196,  71,   226,
-  103,  227,  166,  197,  8,    256,  40,   135,  228,  257,  72,   258,  198,
-  104,  259,  167,  229,  136,  260,  9,    288,  41,   289,  73,   199,  230,
-  290,  168,  261,  105,  291,  137,  292,  231,  10,   200,  262,  320,  42,
-  321,  74,   322,  169,  293,  106,  323,  232,  263,  138,  324,  201,  294,
-  11,   352,  43,   353,  75,   170,  325,  354,  264,  107,  233,  295,  355,
-  202,  326,  139,  356,  12,   384,  44,   265,  296,  385,  171,  357,  76,
-  386,  234,  327,  108,  387,  203,  358,  140,  388,  297,  266,  328,  13,
-  172,  389,  416,  45,   235,  359,  417,  77,   418,  109,  419,  204,  390,
-  298,  329,  141,  267,  360,  420,  236,  391,  173,  421,  14,   448,  46,
-  449,  78,   330,  450,  299,  361,  110,  205,  422,  451,  268,  392,  142,
-  452,  237,  423,  174,  331,  362,  453,  15,   300,  393,  480,  47,   481,
-  79,   482,  206,  454,  269,  424,  111,  483,  143,  484,  363,  332,  394,
-  238,  455,  175,  301,  425,  485,  270,  456,  207,  486,  364,  395,  333,
-  426,  239,  487,  302,  457,  396,  271,  488,  365,  427,  334,  458,  303,
-  489,  397,  428,  366,  459,  335,  490,  429,  398,  460,  367,  491,  430,
-  461,  399,  492,  462,  431,  493,  463,  494,  495,  16,   512,  48,   513,
-  80,   514,  112,  515,  144,  516,  176,  517,  17,   544,  49,   545,  208,
-  518,  81,   546,  113,  547,  145,  240,  519,  548,  177,  549,  272,  520,
-  18,   576,  50,   209,  550,  577,  82,   578,  114,  579,  304,  521,  241,
-  551,  146,  580,  178,  581,  273,  552,  336,  522,  210,  582,  19,   608,
-  51,   609,  83,   610,  115,  305,  553,  611,  242,  583,  147,  368,  523,
-  612,  179,  613,  274,  584,  337,  554,  211,  614,  20,   400,  524,  640,
-  52,   641,  84,   642,  306,  585,  116,  643,  243,  369,  555,  615,  148,
-  644,  338,  586,  180,  275,  432,  525,  616,  645,  401,  556,  212,  646,
-  21,   672,  53,   307,  617,  673,  85,   370,  587,  674,  244,  647,  117,
-  675,  464,  526,  149,  676,  433,  557,  339,  618,  276,  648,  181,  677,
-  402,  588,  213,  678,  308,  496,  527,  649,  371,  619,  22,   704,  54,
-  465,  558,  705,  86,   706,  245,  679,  118,  434,  589,  707,  150,  340,
-  650,  708,  277,  403,  620,  680,  182,  709,  528,  497,  559,  214,  466,
-  590,  710,  372,  651,  309,  681,  23,   736,  55,   435,  621,  737,  87,
-  246,  711,  738,  119,  739,  341,  682,  404,  652,  151,  529,  560,  740,
-  278,  712,  498,  591,  183,  741,  467,  622,  373,  683,  215,  310,  713,
-  742,  436,  653,  24,   768,  56,   769,  247,  561,  743,  88,   530,  592,
-  770,  342,  714,  120,  405,  684,  771,  499,  623,  152,  772,  279,  744,
-  468,  654,  184,  773,  374,  715,  311,  437,  685,  745,  216,  774,  562,
-  593,  531,  624,  25,   248,  500,  655,  775,  800,  57,   801,  406,  716,
-  89,   343,  746,  802,  121,  803,  469,  686,  280,  776,  153,  804,  594,
-  185,  375,  563,  625,  747,  805,  438,  717,  532,  656,  312,  777,  217,
-  806,  501,  687,  407,  748,  249,  807,  26,   344,  778,  832,  58,   833,
-  90,   470,  718,  834,  122,  595,  626,  835,  281,  564,  657,  808,  154,
-  836,  376,  533,  688,  779,  439,  749,  186,  837,  313,  809,  502,  719,
-  218,  838,  408,  780,  627,  596,  658,  250,  345,  471,  750,  810,  839,
-  27,   864,  59,   565,  689,  865,  91,   866,  123,  867,  282,  534,  720,
-  840,  155,  440,  781,  868,  377,  811,  187,  503,  751,  869,  314,  841,
-  628,  659,  219,  597,  690,  870,  409,  812,  472,  782,  566,  721,  346,
-  842,  251,  871,  28,   896,  60,   535,  752,  897,  92,   898,  124,  283,
-  872,  899,  441,  813,  378,  843,  156,  660,  900,  504,  783,  629,  691,
-  598,  722,  188,  901,  315,  873,  567,  753,  220,  410,  844,  902,  473,
-  814,  347,  874,  536,  784,  252,  903,  29,   661,  692,  928,  61,   929,
-  93,   442,  630,  723,  845,  930,  284,  904,  125,  379,  505,  815,  875,
-  931,  599,  754,  157,  932,  316,  568,  785,  905,  189,  933,  474,  846,
-  411,  876,  221,  934,  537,  816,  693,  348,  662,  724,  906,  253,  631,
-  755,  935,  443,  877,  30,   600,  786,  960,  62,   506,  847,  961,  94,
-  962,  285,  380,  907,  936,  126,  963,  569,  817,  158,  964,  317,  937,
-  190,  475,  694,  725,  878,  965,  412,  908,  663,  756,  538,  848,  222,
-  966,  632,  787,  349,  938,  254,  601,  818,  967,  444,  909,  507,  879,
-  31,   992,  63,   381,  939,  993,  286,  968,  95,   570,  849,  994,  726,
-  127,  695,  757,  995,  664,  788,  159,  996,  476,  910,  318,  969,  413,
-  539,  880,  940,  191,  633,  819,  997,  223,  998,  350,  602,  850,  970,
-  508,  911,  255,  445,  941,  999,  727,  758,  696,  789,  571,  881,  382,
-  971,  287,  665,  820,  1000, 477,  634,  851,  942,  540,  912,  319,  1001,
-  414,  972,  603,  882,  759,  728,  790,  351,  1002, 509,  697,  821,  943,
-  446,  973,  572,  913,  666,  852,  383,  1003, 635,  883,  478,  974,  541,
-  944,  415,  760,  791,  1004, 604,  914,  729,  822,  698,  853,  510,  975,
-  667,  884,  447,  573,  945,  1005, 636,  915,  792,  761,  823,  542,  976,
-  479,  1006, 730,  854,  605,  946,  699,  885,  668,  916,  511,  1007, 574,
-  977,  793,  824,  637,  947,  762,  855,  731,  886,  543,  1008, 606,  978,
-  700,  917,  669,  948,  575,  825,  1009, 794,  856,  763,  887,  638,  979,
-  732,  918,  701,  949,  607,  1010, 670,  980,  826,  857,  795,  888,  764,
-  919,  639,  1011, 733,  950,  702,  981,  858,  827,  889,  796,  920,  671,
-  1012, 765,  951,  734,  982,  703,  1013, 859,  890,  828,  921,  797,  952,
-  766,  983,  735,  1014, 891,  860,  922,  829,  953,  798,  984,  767,  1015,
-  892,  923,  861,  954,  830,  985,  799,  1016, 924,  893,  955,  862,  986,
-  831,  1017, 925,  956,  894,  987,  863,  1018, 957,  926,  988,  895,  1019,
-  958,  989,  927,  1020, 990,  959,  1021, 991,  1022, 1023,
-};
-
 #if CONFIG_TX64X64
 // Approximate versions, which reuse the 32x32 scan and assume rest of the
 // coeffs to be zero.
@@ -2811,459 +2562,6 @@
   959, 990,  991, 1022, 0,   0,
 };
 
-DECLARE_ALIGNED(16, static const int16_t,
-                v2_scan_32x32_neighbors[1025 * MAX_NEIGHBORS]) = {
-  0,   0,    0,   0,    0,   0,    1,   32,   1,   1,   32,  32,   2,   33,
-  33,  64,   34,  65,   2,   2,    64,  64,   3,   34,  65,  96,   35,  66,
-  66,  97,   3,   3,    96,  96,   4,   35,   97,  128, 67,  98,   36,  67,
-  98,  129,  4,   4,    68,  99,   99,  130,  128, 128, 5,   36,   129, 160,
-  37,  68,   130, 161,  100, 131,  69,  100,  131, 162, 5,   5,    160, 160,
-  6,   37,   161, 192,  38,  69,   162, 193,  101, 132, 132, 163,  70,  101,
-  163, 194,  6,   6,    192, 192,  7,   38,   133, 164, 193, 224,  102, 133,
-  164, 195,  39,  70,   194, 225,  71,  102,  195, 226, 134, 165,  165, 196,
-  7,   7,    224, 224,  8,   39,   103, 134,  196, 227, 225, 256,  40,  71,
-  226, 257,  166, 197,  72,  103,  227, 258,  135, 166, 197, 228,  104, 135,
-  228, 259,  8,   8,    256, 256,  9,   40,   257, 288, 41,  72,   167, 198,
-  198, 229,  258, 289,  136, 167,  229, 260,  73,  104, 259, 290,  105, 136,
-  260, 291,  199, 230,  9,   9,    168, 199,  230, 261, 288, 288,  10,  41,
-  289, 320,  42,  73,   290, 321,  137, 168,  261, 292, 74,  105,  291, 322,
-  200, 231,  231, 262,  106, 137,  292, 323,  169, 200, 262, 293,  10,  10,
-  320, 320,  11,  42,   321, 352,  43,  74,   138, 169, 293, 324,  322, 353,
-  232, 263,  75,  106,  201, 232,  263, 294,  323, 354, 170, 201,  294, 325,
-  107, 138,  324, 355,  11,  11,   352, 352,  12,  43,  233, 264,  264, 295,
-  353, 384,  139, 170,  325, 356,  44,  75,   354, 385, 202, 233,  295, 326,
-  76,  107,  355, 386,  171, 202,  326, 357,  108, 139, 356, 387,  265, 296,
-  234, 265,  296, 327,  12,  12,   140, 171,  357, 388, 384, 384,  13,  44,
-  203, 234,  327, 358,  385, 416,  45,  76,   386, 417, 77,  108,  387, 418,
-  172, 203,  358, 389,  266, 297,  297, 328,  109, 140, 235, 266,  328, 359,
-  388, 419,  204, 235,  359, 390,  141, 172,  389, 420, 13,  13,   416, 416,
-  14,  45,   417, 448,  46,  77,   298, 329,  418, 449, 267, 298,  329, 360,
-  78,  109,  173, 204,  390, 421,  419, 450,  236, 267, 360, 391,  110, 141,
-  420, 451,  205, 236,  391, 422,  142, 173,  299, 330, 330, 361,  421, 452,
-  14,  14,   268, 299,  361, 392,  448, 448,  15,  46,  449, 480,  47,  78,
-  450, 481,  174, 205,  422, 453,  237, 268,  392, 423, 79,  110,  451, 482,
-  111, 142,  452, 483,  331, 362,  300, 331,  362, 393, 206, 237,  423, 454,
-  143, 174,  269, 300,  393, 424,  453, 484,  480, 480, 481, 512,  238, 269,
-  424, 455,  482, 513,  175, 206,  454, 485,  332, 363, 363, 394,  483, 514,
-  301, 332,  394, 425,  484, 515,  207, 238,  455, 486, 270, 301,  425, 456,
-  485, 516,  364, 395,  239, 270,  456, 487,  512, 512, 333, 364,  395, 426,
-  513, 544,  486, 517,  514, 545,  302, 333,  426, 457, 515, 546,  487, 518,
-  516, 547,  271, 302,  457, 488,  365, 396,  396, 427, 517, 548,  334, 365,
-  427, 458,  488, 519,  544, 544,  303, 334,  458, 489, 518, 549,  545, 576,
-  546, 577,  547, 578,  489, 520,  397, 428,  519, 550, 366, 397,  428, 459,
-  548, 579,  335, 366,  459, 490,  549, 580,  520, 551, 490, 521,  550, 581,
-  576, 576,  577, 608,  398, 429,  429, 460,  578, 609, 367, 398,  460, 491,
-  521, 552,  579, 610,  551, 582,  491, 522,  580, 611, 581, 612,  552, 583,
-  522, 553,  430, 461,  399, 430,  461, 492,  582, 613, 492, 523,  608, 608,
-  609, 640,  610, 641,  553, 584,  611, 642,  523, 554, 583, 614,  612, 643,
-  431, 462,  462, 493,  554, 585,  493, 524,  584, 615, 613, 644,  524, 555,
-  614, 645,  640, 640,  585, 616,  641, 672,  555, 586, 642, 673,  615, 646,
-  463, 494,  643, 674,  494, 525,  644, 675,  525, 556, 586, 617,  616, 647,
-  645, 676,  556, 587,  646, 677,  495, 526,  617, 648, 587, 618,  672, 672,
-  526, 557,  673, 704,  674, 705,  647, 678,  557, 588, 675, 706,  618, 649,
-  676, 707,  588, 619,  648, 679,  677, 708,  527, 558, 558, 589,  678, 709,
-  619, 650,  649, 680,  704, 704,  589, 620,  705, 736, 679, 710,  706, 737,
-  707, 738,  650, 681,  620, 651,  708, 739,  680, 711, 559, 590,  709, 740,
-  590, 621,  651, 682,  681, 712,  710, 741,  621, 652, 736, 736,  737, 768,
-  711, 742,  738, 769,  682, 713,  652, 683,  739, 770, 591, 622,  740, 771,
-  712, 743,  622, 653,  741, 772,  683, 714,  653, 684, 713, 744,  742, 773,
-  623, 654,  743, 774,  768, 768,  769, 800,  684, 715, 714, 745,  770, 801,
-  771, 802,  654, 685,  744, 775,  772, 803,  715, 746, 773, 804,  685, 716,
-  745, 776,  774, 805,  655, 686,  716, 747,  775, 806, 746, 777,  800, 800,
-  801, 832,  686, 717,  802, 833,  803, 834,  776, 807, 804, 835,  747, 778,
-  717, 748,  805, 836,  777, 808,  687, 718,  806, 837, 748, 779,  718, 749,
-  778, 809,  807, 838,  832, 832,  833, 864,  834, 865, 835, 866,  808, 839,
-  749, 780,  836, 867,  779, 810,  719, 750,  837, 868, 809, 840,  838, 869,
-  780, 811,  750, 781,  810, 841,  839, 870,  864, 864, 865, 896,  866, 897,
-  840, 871,  867, 898,  781, 812,  811, 842,  868, 899, 751, 782,  869, 900,
-  841, 872,  812, 843,  870, 901,  782, 813,  842, 873, 871, 902,  896, 896,
-  897, 928,  813, 844,  898, 929,  872, 903,  783, 814, 843, 874,  899, 930,
-  900, 931,  873, 904,  901, 932,  814, 845,  844, 875, 902, 933,  874, 905,
-  903, 934,  845, 876,  928, 928,  815, 846,  929, 960, 930, 961,  875, 906,
-  904, 935,  931, 962,  932, 963,  905, 936,  846, 877, 933, 964,  876, 907,
-  934, 965,  906, 937,  935, 966,  877, 908,  847, 878, 960, 960,  907, 938,
-  961, 992,  936, 967,  962, 993,  963, 994,  964, 995, 878, 909,  937, 968,
-  908, 939,  965, 996,  966, 997,  938, 969,  879, 910, 909, 940,  967, 998,
-  939, 970,  968, 999,  910, 941,  969, 1000, 940, 971, 970, 1001, 911, 942,
-  941, 972,  971, 1002, 942, 973,  972, 1003, 943, 974, 973, 1004, 974, 1005,
-  975, 1006, 15,  15,   16,  47,   48,  79,   80,  111, 112, 143,  144, 175,
-  16,  16,   17,  48,   176, 207,  49,  80,   81,  112, 113, 144,  208, 239,
-  145, 176,  240, 271,  17,  17,   18,  49,   177, 208, 50,  81,   82,  113,
-  272, 303,  209, 240,  114, 145,  146, 177,  241, 272, 304, 335,  178, 209,
-  18,  18,   19,  50,   51,  82,   83,  114,  273, 304, 210, 241,  115, 146,
-  336, 367,  147, 178,  242, 273,  305, 336,  179, 210, 19,  19,   368, 399,
-  20,  51,   52,  83,   274, 305,  84,  115,  211, 242, 337, 368,  116, 147,
-  306, 337,  148, 179,  243, 274,  400, 431,  369, 400, 180, 211,  20,  20,
-  21,  52,   275, 306,  53,  84,   338, 369,  212, 243, 85,  116,  432, 463,
-  117, 148,  401, 432,  307, 338,  244, 275,  149, 180, 370, 401,  181, 212,
-  276, 307,  464, 495,  339, 370,  21,  21,   22,  53,  433, 464,  54,  85,
-  213, 244,  86,  117,  402, 433,  118, 149,  308, 339, 245, 276,  371, 402,
-  150, 181,  496, 527,  465, 496,  182, 213,  434, 465, 340, 371,  277, 308,
-  22,  22,   23,  54,   403, 434,  55,  86,   214, 245, 87,  118,  309, 340,
-  372, 403,  119, 150,  497, 528,  528, 559,  246, 277, 466, 497,  151, 182,
-  435, 466,  341, 372,  183, 214,  278, 309,  404, 435, 23,  23,   24,  55,
-  215, 246,  529, 560,  56,  87,   498, 529,  560, 591, 310, 341,  88,  119,
-  373, 404,  467, 498,  120, 151,  247, 278,  436, 467, 152, 183,  342, 373,
-  279, 310,  405, 436,  184, 215,  530, 561,  561, 592, 499, 530,  592, 623,
-  24,  24,   216, 247,  468, 499,  25,  56,   374, 405, 57,  88,   311, 342,
-  89,  120,  437, 468,  248, 279,  121, 152,  562, 593, 153, 184,  343, 374,
-  531, 562,  593, 624,  406, 437,  500, 531,  624, 655, 280, 311,  185, 216,
-  469, 500,  375, 406,  217, 248,  25,  25,   312, 343, 26,  57,   58,  89,
-  438, 469,  90,  121,  563, 594,  594, 625,  249, 280, 532, 563,  625, 656,
-  122, 153,  344, 375,  501, 532,  656, 687,  407, 438, 154, 185,  281, 312,
-  470, 501,  186, 217,  376, 407,  595, 626,  564, 595, 626, 657,  218, 249,
-  313, 344,  439, 470,  26,  26,   27,  58,   533, 564, 657, 688,  59,  90,
-  91,  122,  250, 281,  502, 533,  688, 719,  123, 154, 408, 439,  345, 376,
-  155, 186,  471, 502,  282, 313,  596, 627,  627, 658, 187, 218,  565, 596,
-  658, 689,  377, 408,  440, 471,  534, 565,  689, 720, 314, 345,  219, 250,
-  27,  27,   28,  59,   503, 534,  720, 751,  60,  91,  92,  123,  251, 282,
-  409, 440,  346, 377,  124, 155,  628, 659,  472, 503, 597, 628,  659, 690,
-  566, 597,  690, 721,  156, 187,  283, 314,  535, 566, 721, 752,  188, 219,
-  378, 409,  441, 472,  315, 346,  504, 535,  752, 783, 220, 251,  28,  28,
-  629, 660,  660, 691,  29,  60,   61,  92,   410, 441, 598, 629,  691, 722,
-  252, 283,  93,  124,  347, 378,  473, 504,  567, 598, 722, 753,  125, 156,
-  284, 315,  536, 567,  753, 784,  157, 188,  442, 473, 379, 410,  189, 220,
-  505, 536,  784, 815,  661, 692,  316, 347,  630, 661, 692, 723,  221, 252,
-  599, 630,  723, 754,  411, 442,  29,  29,   568, 599, 754, 785,  30,  61,
-  474, 505,  62,  93,   253, 284,  348, 379,  94,  125, 537, 568,  785, 816,
-  126, 157,  285, 316,  158, 189,  443, 474,  662, 693, 693, 724,  380, 411,
-  631, 662,  724, 755,  506, 537,  816, 847,  190, 221, 600, 631,  755, 786,
-  317, 348,  222, 253,  569, 600,  786, 817,  412, 443, 475, 506,  30,  30,
-  31,  62,   349, 380,  254, 285,  63,  94,   538, 569, 817, 848,  694, 725,
-  95,  126,  663, 694,  725, 756,  632, 663,  756, 787, 127, 158,  444, 475,
-  286, 317,  381, 412,  507, 538,  848, 879,  159, 190, 601, 632,  787, 818,
-  191, 222,  318, 349,  570, 601,  818, 849,  476, 507, 223, 254,  413, 444,
-  695, 726,  726, 757,  664, 695,  757, 788,  539, 570, 849, 880,  350, 381,
-  255, 286,  633, 664,  788, 819,  445, 476,  602, 633, 819, 850,  508, 539,
-  880, 911,  287, 318,  382, 413,  571, 602,  850, 881, 727, 758,  696, 727,
-  758, 789,  319, 350,  477, 508,  665, 696,  789, 820, 414, 445,  540, 571,
-  881, 912,  634, 665,  820, 851,  351, 382,  603, 634, 851, 882,  446, 477,
-  509, 540,  912, 943,  383, 414,  728, 759,  759, 790, 572, 603,  882, 913,
-  697, 728,  790, 821,  666, 697,  821, 852,  478, 509, 635, 666,  852, 883,
-  415, 446,  541, 572,  913, 944,  604, 635,  883, 914, 760, 791,  729, 760,
-  791, 822,  510, 541,  944, 975,  447, 478,  698, 729, 822, 853,  573, 604,
-  914, 945,  667, 698,  853, 884,  636, 667,  884, 915, 479, 510,  542, 573,
-  945, 976,  761, 792,  792, 823,  605, 636,  915, 946, 730, 761,  823, 854,
-  699, 730,  854, 885,  511, 542,  976, 1007, 574, 605, 946, 977,  668, 699,
-  885, 916,  637, 668,  916, 947,  543, 574,  793, 824, 977, 1008, 762, 793,
-  824, 855,  731, 762,  855, 886,  606, 637,  947, 978, 700, 731,  886, 917,
-  669, 700,  917, 948,  575, 606,  978, 1009, 638, 669, 948, 979,  794, 825,
-  825, 856,  763, 794,  856, 887,  732, 763,  887, 918, 607, 638,  979, 1010,
-  701, 732,  918, 949,  670, 701,  949, 980,  826, 857, 795, 826,  857, 888,
-  764, 795,  888, 919,  639, 670,  980, 1011, 733, 764, 919, 950,  702, 733,
-  950, 981,  671, 702,  981, 1012, 827, 858,  858, 889, 796, 827,  889, 920,
-  765, 796,  920, 951,  734, 765,  951, 982,  703, 734, 982, 1013, 859, 890,
-  828, 859,  890, 921,  797, 828,  921, 952,  766, 797, 952, 983,  735, 766,
-  983, 1014, 860, 891,  891, 922,  829, 860,  922, 953, 798, 829,  953, 984,
-  767, 798,  984, 1015, 892, 923,  861, 892,  923, 954, 830, 861,  954, 985,
-  799, 830,  985, 1016, 893, 924,  924, 955,  862, 893, 955, 986,  831, 862,
-  986, 1017, 925, 956,  894, 925,  956, 987,  863, 894, 987, 1018, 926, 957,
-  957, 988,  895, 926,  988, 1019, 958, 989,  927, 958, 989, 1020, 959, 990,
-  990, 1021, 991, 1022, 0,   0,
-};
-
-DECLARE_ALIGNED(16, static const int16_t,
-                h2_scan_32x32_neighbors[1025 * MAX_NEIGHBORS]) = {
-  0,   0,    0,   0,    0,   0,    1,   32,   1,   1,    32,  32,   2,   33,
-  33,  64,   34,  65,   2,   2,    64,  64,   3,   34,   65,  96,   35,  66,
-  66,  97,   3,   3,    96,  96,   4,   35,   97,  128,  67,  98,   36,  67,
-  98,  129,  4,   4,    68,  99,   99,  130,  128, 128,  5,   36,   129, 160,
-  37,  68,   130, 161,  100, 131,  69,  100,  131, 162,  5,   5,    160, 160,
-  6,   37,   161, 192,  38,  69,   162, 193,  101, 132,  132, 163,  70,  101,
-  163, 194,  6,   6,    192, 192,  7,   38,   133, 164,  193, 224,  102, 133,
-  164, 195,  39,  70,   194, 225,  71,  102,  195, 226,  134, 165,  165, 196,
-  7,   7,    224, 224,  8,   39,   103, 134,  196, 227,  225, 256,  40,  71,
-  226, 257,  166, 197,  72,  103,  227, 258,  135, 166,  197, 228,  104, 135,
-  228, 259,  8,   8,    256, 256,  9,   40,   257, 288,  41,  72,   167, 198,
-  198, 229,  258, 289,  136, 167,  229, 260,  73,  104,  259, 290,  105, 136,
-  260, 291,  199, 230,  9,   9,    168, 199,  230, 261,  288, 288,  10,  41,
-  289, 320,  42,  73,   290, 321,  137, 168,  261, 292,  74,  105,  291, 322,
-  200, 231,  231, 262,  106, 137,  292, 323,  169, 200,  262, 293,  10,  10,
-  320, 320,  11,  42,   321, 352,  43,  74,   138, 169,  293, 324,  322, 353,
-  232, 263,  75,  106,  201, 232,  263, 294,  323, 354,  170, 201,  294, 325,
-  107, 138,  324, 355,  11,  11,   352, 352,  12,  43,   233, 264,  264, 295,
-  353, 384,  139, 170,  325, 356,  44,  75,   354, 385,  202, 233,  295, 326,
-  76,  107,  355, 386,  171, 202,  326, 357,  108, 139,  356, 387,  265, 296,
-  234, 265,  296, 327,  12,  12,   140, 171,  357, 388,  384, 384,  13,  44,
-  203, 234,  327, 358,  385, 416,  45,  76,   386, 417,  77,  108,  387, 418,
-  172, 203,  358, 389,  266, 297,  297, 328,  109, 140,  235, 266,  328, 359,
-  388, 419,  204, 235,  359, 390,  141, 172,  389, 420,  13,  13,   416, 416,
-  14,  45,   417, 448,  46,  77,   298, 329,  418, 449,  267, 298,  329, 360,
-  78,  109,  173, 204,  390, 421,  419, 450,  236, 267,  360, 391,  110, 141,
-  420, 451,  205, 236,  391, 422,  142, 173,  299, 330,  330, 361,  421, 452,
-  14,  14,   268, 299,  361, 392,  448, 448,  15,  46,   449, 480,  47,  78,
-  450, 481,  174, 205,  422, 453,  237, 268,  392, 423,  79,  110,  451, 482,
-  111, 142,  452, 483,  331, 362,  300, 331,  362, 393,  206, 237,  423, 454,
-  143, 174,  269, 300,  393, 424,  453, 484,  15,  15,   16,  47,   48,  79,
-  238, 269,  424, 455,  175, 206,  454, 485,  80,  111,  332, 363,  363, 394,
-  301, 332,  394, 425,  112, 143,  207, 238,  455, 486,  270, 301,  425, 456,
-  144, 175,  364, 395,  16,  16,   239, 270,  456, 487,  17,  48,   333, 364,
-  395, 426,  176, 207,  49,  80,   302, 333,  426, 457,  81,  112,  113, 144,
-  208, 239,  271, 302,  457, 488,  365, 396,  396, 427,  145, 176,  334, 365,
-  427, 458,  240, 271,  17,  17,   18,  49,   177, 208,  303, 334,  458, 489,
-  50,  81,   82,  113,  272, 303,  209, 240,  397, 428,  114, 145,  366, 397,
-  428, 459,  335, 366,  459, 490,  146, 177,  241, 272,  304, 335,  178, 209,
-  18,  18,   19,  50,   51,  82,   398, 429,  429, 460,  367, 398,  460, 491,
-  83,  114,  273, 304,  210, 241,  115, 146,  336, 367,  147, 178,  242, 273,
-  305, 336,  430, 461,  399, 430,  461, 492,  179, 210,  19,  19,   368, 399,
-  20,  51,   52,  83,   274, 305,  84,  115,  211, 242,  337, 368,  116, 147,
-  431, 462,  462, 493,  306, 337,  148, 179,  243, 274,  400, 431,  369, 400,
-  180, 211,  20,  20,   21,  52,   275, 306,  53,  84,   338, 369,  212, 243,
-  85,  116,  463, 494,  432, 463,  117, 148,  401, 432,  307, 338,  244, 275,
-  149, 180,  370, 401,  181, 212,  276, 307,  464, 495,  339, 370,  21,  21,
-  22,  53,   433, 464,  54,  85,   213, 244,  86,  117,  402, 433,  118, 149,
-  308, 339,  245, 276,  371, 402,  150, 181,  465, 496,  182, 213,  434, 465,
-  340, 371,  277, 308,  22,  22,   23,  54,   403, 434,  55,  86,   214, 245,
-  87,  118,  309, 340,  372, 403,  119, 150,  246, 277,  466, 497,  151, 182,
-  435, 466,  341, 372,  183, 214,  278, 309,  404, 435,  23,  23,   24,  55,
-  215, 246,  56,  87,   310, 341,  88,  119,  373, 404,  467, 498,  120, 151,
-  247, 278,  436, 467,  152, 183,  342, 373,  279, 310,  405, 436,  184, 215,
-  24,  24,   216, 247,  468, 499,  25,  56,   374, 405,  57,  88,   311, 342,
-  89,  120,  437, 468,  248, 279,  121, 152,  153, 184,  343, 374,  406, 437,
-  280, 311,  185, 216,  469, 500,  375, 406,  217, 248,  25,  25,   312, 343,
-  26,  57,   58,  89,   438, 469,  90,  121,  249, 280,  122, 153,  344, 375,
-  407, 438,  154, 185,  281, 312,  470, 501,  186, 217,  376, 407,  218, 249,
-  313, 344,  439, 470,  26,  26,   27,  58,   59,  90,   91,  122,  250, 281,
-  123, 154,  408, 439,  345, 376,  155, 186,  471, 502,  282, 313,  187, 218,
-  377, 408,  440, 471,  314, 345,  219, 250,  27,  27,   28,  59,   60,  91,
-  92,  123,  251, 282,  409, 440,  346, 377,  124, 155,  472, 503,  156, 187,
-  283, 314,  188, 219,  378, 409,  441, 472,  315, 346,  220, 251,  28,  28,
-  29,  60,   61,  92,   410, 441,  252, 283,  93,  124,  347, 378,  473, 504,
-  125, 156,  284, 315,  157, 188,  442, 473,  379, 410,  189, 220,  316, 347,
-  221, 252,  411, 442,  29,  29,   30,  61,   474, 505,  62,  93,   253, 284,
-  348, 379,  94,  125,  126, 157,  285, 316,  158, 189,  443, 474,  380, 411,
-  190, 221,  317, 348,  222, 253,  412, 443,  475, 506,  30,  30,   31,  62,
-  349, 380,  254, 285,  63,  94,   95,  126,  127, 158,  444, 475,  286, 317,
-  381, 412,  159, 190,  191, 222,  318, 349,  476, 507,  223, 254,  413, 444,
-  350, 381,  255, 286,  445, 476,  287, 318,  382, 413,  319, 350,  477, 508,
-  414, 445,  351, 382,  446, 477,  383, 414,  478, 509,  415, 446,  447, 478,
-  479, 510,  480, 480,  481, 512,  482, 513,  483, 514,  484, 515,  485, 516,
-  512, 512,  513, 544,  486, 517,  514, 545,  515, 546,  487, 518,  516, 547,
-  517, 548,  488, 519,  544, 544,  518, 549,  545, 576,  546, 577,  547, 578,
-  489, 520,  519, 550,  548, 579,  549, 580,  520, 551,  490, 521,  550, 581,
-  576, 576,  577, 608,  578, 609,  521, 552,  579, 610,  551, 582,  491, 522,
-  580, 611,  581, 612,  552, 583,  522, 553,  582, 613,  492, 523,  608, 608,
-  609, 640,  610, 641,  553, 584,  611, 642,  523, 554,  583, 614,  612, 643,
-  554, 585,  493, 524,  584, 615,  613, 644,  524, 555,  614, 645,  640, 640,
-  585, 616,  641, 672,  555, 586,  642, 673,  615, 646,  643, 674,  494, 525,
-  644, 675,  525, 556,  586, 617,  616, 647,  645, 676,  556, 587,  646, 677,
-  495, 526,  617, 648,  587, 618,  672, 672,  526, 557,  673, 704,  674, 705,
-  647, 678,  557, 588,  675, 706,  618, 649,  676, 707,  588, 619,  648, 679,
-  677, 708,  496, 527,  527, 558,  558, 589,  678, 709,  619, 650,  649, 680,
-  704, 704,  589, 620,  705, 736,  679, 710,  706, 737,  707, 738,  650, 681,
-  620, 651,  497, 528,  528, 559,  708, 739,  680, 711,  559, 590,  709, 740,
-  590, 621,  651, 682,  681, 712,  710, 741,  621, 652,  736, 736,  737, 768,
-  529, 560,  711, 742,  498, 529,  560, 591,  738, 769,  682, 713,  652, 683,
-  739, 770,  591, 622,  740, 771,  712, 743,  622, 653,  741, 772,  683, 714,
-  653, 684,  713, 744,  742, 773,  530, 561,  561, 592,  499, 530,  592, 623,
-  623, 654,  743, 774,  768, 768,  769, 800,  684, 715,  714, 745,  770, 801,
-  771, 802,  654, 685,  744, 775,  772, 803,  562, 593,  531, 562,  593, 624,
-  715, 746,  773, 804,  685, 716,  500, 531,  624, 655,  745, 776,  774, 805,
-  655, 686,  716, 747,  775, 806,  746, 777,  800, 800,  801, 832,  686, 717,
-  802, 833,  563, 594,  594, 625,  803, 834,  532, 563,  625, 656,  776, 807,
-  804, 835,  501, 532,  656, 687,  747, 778,  717, 748,  805, 836,  777, 808,
-  687, 718,  806, 837,  748, 779,  595, 626,  564, 595,  626, 657,  718, 749,
-  778, 809,  807, 838,  832, 832,  533, 564,  657, 688,  833, 864,  834, 865,
-  835, 866,  502, 533,  688, 719,  808, 839,  749, 780,  836, 867,  779, 810,
-  719, 750,  837, 868,  809, 840,  596, 627,  627, 658,  565, 596,  658, 689,
-  838, 869,  780, 811,  750, 781,  534, 565,  689, 720,  810, 841,  839, 870,
-  864, 864,  503, 534,  720, 751,  865, 896,  866, 897,  840, 871,  867, 898,
-  781, 812,  811, 842,  628, 659,  868, 899,  751, 782,  597, 628,  659, 690,
-  566, 597,  690, 721,  869, 900,  841, 872,  535, 566,  721, 752,  812, 843,
-  870, 901,  782, 813,  842, 873,  504, 535,  752, 783,  871, 902,  629, 660,
-  660, 691,  896, 896,  897, 928,  598, 629,  691, 722,  813, 844,  898, 929,
-  872, 903,  783, 814,  843, 874,  899, 930,  567, 598,  722, 753,  900, 931,
-  536, 567,  753, 784,  873, 904,  901, 932,  814, 845,  844, 875,  902, 933,
-  505, 536,  784, 815,  661, 692,  630, 661,  692, 723,  874, 905,  599, 630,
-  723, 754,  903, 934,  845, 876,  568, 599,  754, 785,  928, 928,  815, 846,
-  929, 960,  930, 961,  875, 906,  904, 935,  931, 962,  537, 568,  785, 816,
-  932, 963,  905, 936,  662, 693,  693, 724,  846, 877,  933, 964,  876, 907,
-  631, 662,  724, 755,  506, 537,  816, 847,  934, 965,  600, 631,  755, 786,
-  906, 937,  569, 600,  786, 817,  935, 966,  877, 908,  847, 878,  960, 960,
-  907, 938,  961, 992,  936, 967,  538, 569,  817, 848,  962, 993,  694, 725,
-  663, 694,  725, 756,  963, 994,  632, 663,  756, 787,  964, 995,  878, 909,
-  937, 968,  507, 538,  848, 879,  908, 939,  601, 632,  787, 818,  965, 996,
-  966, 997,  570, 601,  818, 849,  938, 969,  879, 910,  909, 940,  967, 998,
-  695, 726,  726, 757,  664, 695,  757, 788,  539, 570,  849, 880,  939, 970,
-  633, 664,  788, 819,  968, 999,  602, 633,  819, 850,  910, 941,  508, 539,
-  880, 911,  969, 1000, 940, 971,  571, 602,  850, 881,  727, 758,  696, 727,
-  758, 789,  970, 1001, 665, 696,  789, 820,  911, 942,  941, 972,  540, 571,
-  881, 912,  634, 665,  820, 851,  971, 1002, 603, 634,  851, 882,  942, 973,
-  509, 540,  912, 943,  728, 759,  759, 790,  972, 1003, 572, 603,  882, 913,
-  697, 728,  790, 821,  666, 697,  821, 852,  943, 974,  635, 666,  852, 883,
-  541, 572,  913, 944,  973, 1004, 604, 635,  883, 914,  760, 791,  729, 760,
-  791, 822,  510, 541,  944, 975,  974, 1005, 698, 729,  822, 853,  573, 604,
-  914, 945,  667, 698,  853, 884,  636, 667,  884, 915,  975, 1006, 542, 573,
-  945, 976,  761, 792,  792, 823,  605, 636,  915, 946,  730, 761,  823, 854,
-  699, 730,  854, 885,  511, 542,  976, 1007, 574, 605,  946, 977,  668, 699,
-  885, 916,  637, 668,  916, 947,  543, 574,  793, 824,  977, 1008, 762, 793,
-  824, 855,  731, 762,  855, 886,  606, 637,  947, 978,  700, 731,  886, 917,
-  669, 700,  917, 948,  575, 606,  978, 1009, 638, 669,  948, 979,  794, 825,
-  825, 856,  763, 794,  856, 887,  732, 763,  887, 918,  607, 638,  979, 1010,
-  701, 732,  918, 949,  670, 701,  949, 980,  826, 857,  795, 826,  857, 888,
-  764, 795,  888, 919,  639, 670,  980, 1011, 733, 764,  919, 950,  702, 733,
-  950, 981,  671, 702,  981, 1012, 827, 858,  858, 889,  796, 827,  889, 920,
-  765, 796,  920, 951,  734, 765,  951, 982,  703, 734,  982, 1013, 859, 890,
-  828, 859,  890, 921,  797, 828,  921, 952,  766, 797,  952, 983,  735, 766,
-  983, 1014, 860, 891,  891, 922,  829, 860,  922, 953,  798, 829,  953, 984,
-  767, 798,  984, 1015, 892, 923,  861, 892,  923, 954,  830, 861,  954, 985,
-  799, 830,  985, 1016, 893, 924,  924, 955,  862, 893,  955, 986,  831, 862,
-  986, 1017, 925, 956,  894, 925,  956, 987,  863, 894,  987, 1018, 926, 957,
-  957, 988,  895, 926,  988, 1019, 958, 989,  927, 958,  989, 1020, 959, 990,
-  990, 1021, 991, 1022, 0,   0
-};
-
-DECLARE_ALIGNED(16, static const int16_t,
-                qtr_scan_32x32_neighbors[1025 * MAX_NEIGHBORS]) = {
-  0,   0,    0,   0,    0,   0,    1,   32,   1,   1,    32,  32,   2,   33,
-  33,  64,   34,  65,   2,   2,    64,  64,   3,   34,   65,  96,   35,  66,
-  66,  97,   3,   3,    96,  96,   4,   35,   97,  128,  67,  98,   36,  67,
-  98,  129,  4,   4,    68,  99,   99,  130,  128, 128,  5,   36,   129, 160,
-  37,  68,   130, 161,  100, 131,  69,  100,  131, 162,  5,   5,    160, 160,
-  6,   37,   161, 192,  38,  69,   162, 193,  101, 132,  132, 163,  70,  101,
-  163, 194,  6,   6,    192, 192,  7,   38,   133, 164,  193, 224,  102, 133,
-  164, 195,  39,  70,   194, 225,  71,  102,  195, 226,  134, 165,  165, 196,
-  7,   7,    224, 224,  8,   39,   103, 134,  196, 227,  225, 256,  40,  71,
-  226, 257,  166, 197,  72,  103,  227, 258,  135, 166,  197, 228,  104, 135,
-  228, 259,  8,   8,    256, 256,  9,   40,   257, 288,  41,  72,   167, 198,
-  198, 229,  258, 289,  136, 167,  229, 260,  73,  104,  259, 290,  105, 136,
-  260, 291,  199, 230,  9,   9,    168, 199,  230, 261,  288, 288,  10,  41,
-  289, 320,  42,  73,   290, 321,  137, 168,  261, 292,  74,  105,  291, 322,
-  200, 231,  231, 262,  106, 137,  292, 323,  169, 200,  262, 293,  10,  10,
-  320, 320,  11,  42,   321, 352,  43,  74,   138, 169,  293, 324,  322, 353,
-  232, 263,  75,  106,  201, 232,  263, 294,  323, 354,  170, 201,  294, 325,
-  107, 138,  324, 355,  11,  11,   352, 352,  12,  43,   233, 264,  264, 295,
-  353, 384,  139, 170,  325, 356,  44,  75,   354, 385,  202, 233,  295, 326,
-  76,  107,  355, 386,  171, 202,  326, 357,  108, 139,  356, 387,  265, 296,
-  234, 265,  296, 327,  12,  12,   140, 171,  357, 388,  384, 384,  13,  44,
-  203, 234,  327, 358,  385, 416,  45,  76,   386, 417,  77,  108,  387, 418,
-  172, 203,  358, 389,  266, 297,  297, 328,  109, 140,  235, 266,  328, 359,
-  388, 419,  204, 235,  359, 390,  141, 172,  389, 420,  13,  13,   416, 416,
-  14,  45,   417, 448,  46,  77,   298, 329,  418, 449,  267, 298,  329, 360,
-  78,  109,  173, 204,  390, 421,  419, 450,  236, 267,  360, 391,  110, 141,
-  420, 451,  205, 236,  391, 422,  142, 173,  299, 330,  330, 361,  421, 452,
-  14,  14,   268, 299,  361, 392,  448, 448,  15,  46,   449, 480,  47,  78,
-  450, 481,  174, 205,  422, 453,  237, 268,  392, 423,  79,  110,  451, 482,
-  111, 142,  452, 483,  331, 362,  300, 331,  362, 393,  206, 237,  423, 454,
-  143, 174,  269, 300,  393, 424,  453, 484,  238, 269,  424, 455,  175, 206,
-  454, 485,  332, 363,  363, 394,  301, 332,  394, 425,  207, 238,  455, 486,
-  270, 301,  425, 456,  364, 395,  239, 270,  456, 487,  333, 364,  395, 426,
-  302, 333,  426, 457,  271, 302,  457, 488,  365, 396,  396, 427,  334, 365,
-  427, 458,  303, 334,  458, 489,  397, 428,  366, 397,  428, 459,  335, 366,
-  459, 490,  398, 429,  429, 460,  367, 398,  460, 491,  430, 461,  399, 430,
-  461, 492,  431, 462,  462, 493,  463, 494,  15,  15,   480, 480,  16,  47,
-  481, 512,  48,  79,   482, 513,  80,  111,  483, 514,  112, 143,  484, 515,
-  144, 175,  485, 516,  16,  16,   512, 512,  17,  48,   513, 544,  176, 207,
-  486, 517,  49,  80,   514, 545,  81,  112,  515, 546,  113, 144,  208, 239,
-  487, 518,  516, 547,  145, 176,  517, 548,  240, 271,  488, 519,  17,  17,
-  544, 544,  18,  49,   177, 208,  518, 549,  545, 576,  50,  81,   546, 577,
-  82,  113,  547, 578,  272, 303,  489, 520,  209, 240,  519, 550,  114, 145,
-  548, 579,  146, 177,  549, 580,  241, 272,  520, 551,  304, 335,  490, 521,
-  178, 209,  550, 581,  18,  18,   576, 576,  19,  50,   577, 608,  51,  82,
-  578, 609,  83,  114,  273, 304,  521, 552,  579, 610,  210, 241,  551, 582,
-  115, 146,  336, 367,  491, 522,  580, 611,  147, 178,  581, 612,  242, 273,
-  552, 583,  305, 336,  522, 553,  179, 210,  582, 613,  19,  19,   368, 399,
-  492, 523,  608, 608,  20,  51,   609, 640,  52,  83,   610, 641,  274, 305,
-  553, 584,  84,  115,  611, 642,  211, 242,  337, 368,  523, 554,  583, 614,
-  116, 147,  612, 643,  306, 337,  554, 585,  148, 179,  243, 274,  400, 431,
-  493, 524,  584, 615,  613, 644,  369, 400,  524, 555,  180, 211,  614, 645,
-  20,  20,   640, 640,  21,  52,   275, 306,  585, 616,  641, 672,  53,  84,
-  338, 369,  555, 586,  642, 673,  212, 243,  615, 646,  85,  116,  643, 674,
-  432, 463,  494, 525,  117, 148,  644, 675,  401, 432,  525, 556,  307, 338,
-  586, 617,  244, 275,  616, 647,  149, 180,  645, 676,  370, 401,  556, 587,
-  181, 212,  646, 677,  276, 307,  464, 495,  495, 526,  617, 648,  339, 370,
-  587, 618,  21,  21,   672, 672,  22,  53,   433, 464,  526, 557,  673, 704,
-  54,  85,   674, 705,  213, 244,  647, 678,  86,  117,  402, 433,  557, 588,
-  675, 706,  118, 149,  308, 339,  618, 649,  676, 707,  245, 276,  371, 402,
-  588, 619,  648, 679,  150, 181,  677, 708,  496, 527,  465, 496,  527, 558,
-  182, 213,  434, 465,  558, 589,  678, 709,  340, 371,  619, 650,  277, 308,
-  649, 680,  22,  22,   704, 704,  23,  54,   403, 434,  589, 620,  705, 736,
-  55,  86,   214, 245,  679, 710,  706, 737,  87,  118,  707, 738,  309, 340,
-  650, 681,  372, 403,  620, 651,  119, 150,  497, 528,  528, 559,  708, 739,
-  246, 277,  680, 711,  466, 497,  559, 590,  151, 182,  709, 740,  435, 466,
-  590, 621,  341, 372,  651, 682,  183, 214,  278, 309,  681, 712,  710, 741,
-  404, 435,  621, 652,  23,  23,   736, 736,  24,  55,   737, 768,  215, 246,
-  529, 560,  711, 742,  56,  87,   498, 529,  560, 591,  738, 769,  310, 341,
-  682, 713,  88,  119,  373, 404,  652, 683,  739, 770,  467, 498,  591, 622,
-  120, 151,  740, 771,  247, 278,  712, 743,  436, 467,  622, 653,  152, 183,
-  741, 772,  342, 373,  683, 714,  279, 310,  405, 436,  653, 684,  713, 744,
-  184, 215,  742, 773,  530, 561,  561, 592,  499, 530,  592, 623,  24,  24,
-  216, 247,  468, 499,  623, 654,  743, 774,  768, 768,  25,  56,   769, 800,
-  374, 405,  684, 715,  57,  88,   311, 342,  714, 745,  770, 801,  89,  120,
-  771, 802,  437, 468,  654, 685,  248, 279,  744, 775,  121, 152,  772, 803,
-  562, 593,  153, 184,  343, 374,  531, 562,  593, 624,  715, 746,  773, 804,
-  406, 437,  685, 716,  500, 531,  624, 655,  280, 311,  745, 776,  185, 216,
-  774, 805,  469, 500,  655, 686,  375, 406,  716, 747,  217, 248,  775, 806,
-  25,  25,   312, 343,  746, 777,  800, 800,  26,  57,   801, 832,  58,  89,
-  438, 469,  686, 717,  802, 833,  90,  121,  563, 594,  594, 625,  803, 834,
-  249, 280,  532, 563,  625, 656,  776, 807,  122, 153,  804, 835,  344, 375,
-  501, 532,  656, 687,  747, 778,  407, 438,  717, 748,  154, 185,  805, 836,
-  281, 312,  777, 808,  470, 501,  687, 718,  186, 217,  806, 837,  376, 407,
-  748, 779,  595, 626,  564, 595,  626, 657,  218, 249,  313, 344,  439, 470,
-  718, 749,  778, 809,  807, 838,  26,  26,   832, 832,  27,  58,   533, 564,
-  657, 688,  833, 864,  59,  90,   834, 865,  91,  122,  835, 866,  250, 281,
-  502, 533,  688, 719,  808, 839,  123, 154,  408, 439,  749, 780,  836, 867,
-  345, 376,  779, 810,  155, 186,  471, 502,  719, 750,  837, 868,  282, 313,
-  809, 840,  596, 627,  627, 658,  187, 218,  565, 596,  658, 689,  838, 869,
-  377, 408,  780, 811,  440, 471,  750, 781,  534, 565,  689, 720,  314, 345,
-  810, 841,  219, 250,  839, 870,  27,  27,   864, 864,  28,  59,   503, 534,
-  720, 751,  865, 896,  60,  91,   866, 897,  92,  123,  251, 282,  840, 871,
-  867, 898,  409, 440,  781, 812,  346, 377,  811, 842,  124, 155,  628, 659,
-  868, 899,  472, 503,  751, 782,  597, 628,  659, 690,  566, 597,  690, 721,
-  156, 187,  869, 900,  283, 314,  841, 872,  535, 566,  721, 752,  188, 219,
-  378, 409,  812, 843,  870, 901,  441, 472,  782, 813,  315, 346,  842, 873,
-  504, 535,  752, 783,  220, 251,  871, 902,  28,  28,   629, 660,  660, 691,
-  896, 896,  29,  60,   897, 928,  61,  92,   410, 441,  598, 629,  691, 722,
-  813, 844,  898, 929,  252, 283,  872, 903,  93,  124,  347, 378,  473, 504,
-  783, 814,  843, 874,  899, 930,  567, 598,  722, 753,  125, 156,  900, 931,
-  284, 315,  536, 567,  753, 784,  873, 904,  157, 188,  901, 932,  442, 473,
-  814, 845,  379, 410,  844, 875,  189, 220,  902, 933,  505, 536,  784, 815,
-  661, 692,  316, 347,  630, 661,  692, 723,  874, 905,  221, 252,  599, 630,
-  723, 754,  903, 934,  411, 442,  845, 876,  29,  29,   568, 599,  754, 785,
-  928, 928,  30,  61,   474, 505,  815, 846,  929, 960,  62,  93,   930, 961,
-  253, 284,  348, 379,  875, 906,  904, 935,  94,  125,  931, 962,  537, 568,
-  785, 816,  126, 157,  932, 963,  285, 316,  905, 936,  158, 189,  443, 474,
-  662, 693,  693, 724,  846, 877,  933, 964,  380, 411,  876, 907,  631, 662,
-  724, 755,  506, 537,  816, 847,  190, 221,  934, 965,  600, 631,  755, 786,
-  317, 348,  906, 937,  222, 253,  569, 600,  786, 817,  935, 966,  412, 443,
-  877, 908,  475, 506,  847, 878,  30,  30,   960, 960,  31,  62,   349, 380,
-  907, 938,  961, 992,  254, 285,  936, 967,  63,  94,   538, 569,  817, 848,
-  962, 993,  694, 725,  95,  126,  663, 694,  725, 756,  963, 994,  632, 663,
-  756, 787,  127, 158,  964, 995,  444, 475,  878, 909,  286, 317,  937, 968,
-  381, 412,  507, 538,  848, 879,  908, 939,  159, 190,  601, 632,  787, 818,
-  965, 996,  191, 222,  966, 997,  318, 349,  570, 601,  818, 849,  938, 969,
-  476, 507,  879, 910,  223, 254,  413, 444,  909, 940,  967, 998,  695, 726,
-  726, 757,  664, 695,  757, 788,  539, 570,  849, 880,  350, 381,  939, 970,
-  255, 286,  633, 664,  788, 819,  968, 999,  445, 476,  602, 633,  819, 850,
-  910, 941,  508, 539,  880, 911,  287, 318,  969, 1000, 382, 413,  940, 971,
-  571, 602,  850, 881,  727, 758,  696, 727,  758, 789,  319, 350,  970, 1001,
-  477, 508,  665, 696,  789, 820,  911, 942,  414, 445,  941, 972,  540, 571,
-  881, 912,  634, 665,  820, 851,  351, 382,  971, 1002, 603, 634,  851, 882,
-  446, 477,  942, 973,  509, 540,  912, 943,  383, 414,  728, 759,  759, 790,
-  972, 1003, 572, 603,  882, 913,  697, 728,  790, 821,  666, 697,  821, 852,
-  478, 509,  943, 974,  635, 666,  852, 883,  415, 446,  541, 572,  913, 944,
-  973, 1004, 604, 635,  883, 914,  760, 791,  729, 760,  791, 822,  510, 541,
-  944, 975,  447, 478,  974, 1005, 698, 729,  822, 853,  573, 604,  914, 945,
-  667, 698,  853, 884,  636, 667,  884, 915,  479, 510,  975, 1006, 542, 573,
-  945, 976,  761, 792,  792, 823,  605, 636,  915, 946,  730, 761,  823, 854,
-  699, 730,  854, 885,  511, 542,  976, 1007, 574, 605,  946, 977,  668, 699,
-  885, 916,  637, 668,  916, 947,  543, 574,  793, 824,  977, 1008, 762, 793,
-  824, 855,  731, 762,  855, 886,  606, 637,  947, 978,  700, 731,  886, 917,
-  669, 700,  917, 948,  575, 606,  978, 1009, 638, 669,  948, 979,  794, 825,
-  825, 856,  763, 794,  856, 887,  732, 763,  887, 918,  607, 638,  979, 1010,
-  701, 732,  918, 949,  670, 701,  949, 980,  826, 857,  795, 826,  857, 888,
-  764, 795,  888, 919,  639, 670,  980, 1011, 733, 764,  919, 950,  702, 733,
-  950, 981,  671, 702,  981, 1012, 827, 858,  858, 889,  796, 827,  889, 920,
-  765, 796,  920, 951,  734, 765,  951, 982,  703, 734,  982, 1013, 859, 890,
-  828, 859,  890, 921,  797, 828,  921, 952,  766, 797,  952, 983,  735, 766,
-  983, 1014, 860, 891,  891, 922,  829, 860,  922, 953,  798, 829,  953, 984,
-  767, 798,  984, 1015, 892, 923,  861, 892,  923, 954,  830, 861,  954, 985,
-  799, 830,  985, 1016, 893, 924,  924, 955,  862, 893,  955, 986,  831, 862,
-  986, 1017, 925, 956,  894, 925,  956, 987,  863, 894,  987, 1018, 926, 957,
-  957, 988,  895, 926,  988, 1019, 958, 989,  927, 958,  989, 1020, 959, 990,
-  990, 1021, 991, 1022, 0,   0
-};
-
 #if CONFIG_TX64X64
 #define default_scan_32x64_neighbors default_scan_32x32_neighbors
 #define default_scan_64x32_neighbors default_scan_32x32_neighbors
@@ -4157,252 +3455,6 @@
   967,  973,  988,  996,  1002, 1006, 1014, 1018, 1021, 1023,
 };
 
-DECLARE_ALIGNED(16, static const int16_t, av1_v2_iscan_32x32[1024]) = {
-  0,    1,    4,    9,    15,   22,   33,   43,   56,   71,   86,   104,  121,
-  142,  166,  189,  512,  518,  527,  539,  551,  566,  584,  602,  621,  644,
-  668,  695,  721,  748,  780,  811,  2,    3,    6,    11,   17,   26,   35,
-  45,   58,   73,   90,   106,  123,  146,  168,  193,  513,  519,  528,  540,
-  553,  567,  585,  603,  622,  647,  670,  696,  722,  751,  783,  812,  5,
-  7,    8,    13,   20,   28,   37,   50,   62,   75,   92,   108,  129,  150,
-  170,  195,  514,  521,  530,  541,  554,  569,  587,  605,  625,  649,  671,
-  699,  725,  752,  785,  815,  10,   12,   14,   19,   23,   31,   41,   52,
-  65,   81,   96,   113,  133,  152,  175,  201,  515,  522,  531,  542,  556,
-  572,  589,  607,  629,  651,  673,  700,  726,  757,  788,  819,  16,   18,
-  21,   24,   30,   39,   48,   59,   69,   83,   100,  119,  137,  158,  181,
-  203,  516,  523,  534,  545,  559,  574,  591,  610,  632,  654,  679,  704,
-  730,  762,  791,  824,  25,   27,   29,   32,   40,   46,   54,   67,   79,
-  94,   109,  127,  143,  164,  185,  210,  517,  525,  535,  547,  561,  578,
-  595,  615,  635,  656,  684,  707,  737,  766,  793,  830,  34,   36,   38,
-  42,   49,   55,   64,   76,   87,   102,  117,  135,  154,  176,  197,  219,
-  520,  529,  538,  550,  565,  580,  598,  618,  639,  664,  687,  712,  741,
-  769,  802,  833,  44,   47,   51,   53,   60,   68,   77,   85,   98,   114,
-  131,  147,  162,  183,  208,  227,  524,  533,  544,  557,  571,  588,  606,
-  623,  645,  667,  692,  720,  747,  776,  806,  838,  57,   61,   63,   66,
-  70,   80,   88,   99,   112,  124,  140,  159,  179,  199,  216,  233,  526,
-  536,  548,  562,  577,  593,  613,  633,  653,  676,  701,  727,  756,  786,
-  814,  847,  72,   74,   78,   82,   84,   95,   103,  115,  125,  139,  156,
-  173,  190,  211,  229,  246,  532,  543,  555,  568,  581,  601,  619,  637,
-  663,  685,  709,  738,  763,  792,  826,  855,  89,   91,   93,   97,   101,
-  110,  118,  132,  141,  157,  171,  186,  206,  224,  241,  255,  537,  549,
-  560,  576,  592,  608,  628,  650,  669,  693,  719,  744,  773,  805,  834,
-  862,  105,  107,  111,  116,  120,  128,  136,  148,  160,  174,  187,  205,
-  221,  236,  251,  267,  546,  558,  570,  583,  600,  617,  636,  657,  680,
-  706,  729,  758,  787,  813,  846,  871,  122,  126,  130,  134,  138,  144,
-  155,  163,  180,  191,  207,  222,  232,  248,  264,  278,  552,  564,  579,
-  594,  609,  630,  648,  666,  688,  715,  742,  768,  797,  827,  856,  877,
-  145,  149,  151,  153,  161,  165,  177,  184,  200,  212,  225,  237,  249,
-  262,  275,  289,  563,  575,  590,  604,  620,  638,  660,  683,  705,  728,
-  753,  779,  809,  839,  866,  889,  167,  169,  172,  178,  182,  188,  198,
-  209,  217,  230,  242,  252,  265,  276,  288,  301,  573,  586,  599,  616,
-  634,  652,  672,  694,  716,  743,  767,  794,  825,  850,  874,  899,  192,
-  194,  196,  202,  204,  213,  220,  228,  234,  247,  256,  268,  279,  290,
-  302,  315,  582,  597,  614,  631,  646,  665,  686,  708,  732,  759,  784,
-  810,  837,  863,  886,  908,  214,  215,  218,  223,  226,  231,  239,  244,
-  253,  261,  271,  283,  292,  304,  317,  325,  596,  611,  626,  642,  661,
-  681,  702,  723,  745,  770,  800,  828,  853,  875,  897,  919,  235,  238,
-  240,  243,  245,  250,  257,  263,  270,  280,  287,  298,  307,  319,  329,
-  340,  612,  624,  640,  658,  677,  697,  717,  739,  764,  789,  816,  844,
-  867,  890,  909,  927,  254,  258,  259,  260,  266,  269,  272,  282,  286,
-  296,  303,  312,  323,  333,  341,  355,  627,  641,  655,  674,  690,  713,
-  735,  760,  781,  807,  835,  857,  880,  902,  921,  940,  273,  274,  277,
-  281,  284,  285,  291,  299,  305,  310,  320,  327,  337,  346,  357,  369,
-  643,  659,  675,  689,  710,  733,  754,  777,  803,  831,  851,  872,  892,
-  913,  934,  950,  293,  294,  295,  297,  300,  306,  308,  314,  321,  326,
-  335,  343,  352,  361,  372,  378,  662,  678,  691,  711,  731,  749,  774,
-  798,  822,  848,  869,  887,  906,  925,  942,  961,  309,  311,  313,  316,
-  318,  322,  324,  332,  338,  344,  351,  358,  367,  375,  386,  394,  682,
-  698,  714,  734,  750,  772,  795,  820,  842,  864,  884,  904,  923,  938,
-  954,  967,  328,  330,  331,  334,  336,  339,  342,  348,  354,  359,  366,
-  374,  382,  391,  400,  409,  703,  718,  736,  755,  775,  796,  818,  840,
-  860,  882,  900,  917,  936,  952,  965,  977,  345,  347,  349,  350,  353,
-  356,  360,  364,  371,  376,  383,  389,  395,  406,  412,  423,  724,  740,
-  761,  778,  799,  821,  841,  859,  878,  895,  915,  932,  948,  963,  975,
-  986,  362,  363,  365,  368,  370,  373,  377,  379,  387,  392,  397,  405,
-  411,  420,  428,  439,  746,  765,  782,  804,  823,  843,  861,  879,  894,
-  911,  930,  946,  959,  973,  984,  994,  380,  381,  384,  385,  388,  390,
-  393,  396,  403,  408,  413,  422,  427,  436,  444,  452,  771,  790,  808,
-  832,  849,  865,  883,  896,  912,  928,  944,  957,  971,  982,  992,  1001,
-  398,  399,  401,  402,  404,  407,  410,  414,  419,  425,  429,  437,  442,
-  449,  458,  465,  801,  817,  836,  852,  870,  885,  901,  916,  931,  945,
-  956,  969,  980,  990,  999,  1007, 415,  416,  417,  418,  421,  424,  426,
-  430,  434,  441,  445,  453,  459,  463,  473,  480,  829,  845,  858,  873,
-  888,  905,  918,  933,  947,  958,  970,  979,  988,  997,  1005, 1012, 431,
-  432,  433,  435,  438,  440,  443,  446,  451,  456,  461,  468,  475,  479,
-  488,  494,  854,  868,  881,  893,  907,  924,  937,  949,  960,  972,  981,
-  989,  996,  1003, 1010, 1016, 447,  448,  450,  454,  455,  457,  460,  462,
-  469,  472,  477,  482,  490,  495,  499,  503,  876,  891,  903,  914,  926,
-  939,  953,  964,  974,  983,  991,  998,  1004, 1009, 1014, 1019, 464,  466,
-  467,  470,  471,  474,  476,  478,  484,  489,  493,  497,  501,  504,  506,
-  508,  898,  910,  922,  935,  943,  955,  966,  976,  985,  993,  1000, 1006,
-  1011, 1015, 1018, 1021, 481,  483,  485,  486,  487,  491,  492,  496,  498,
-  500,  502,  505,  507,  509,  510,  511,  920,  929,  941,  951,  962,  968,
-  978,  987,  995,  1002, 1008, 1013, 1017, 1020, 1022, 1023,
-};
-
-DECLARE_ALIGNED(16, static const int16_t, av1_h2_iscan_32x32[1024]) = {
-  0,    1,    4,    9,    15,   22,   33,   43,   56,   71,   86,   104,  121,
-  142,  166,  189,  214,  233,  254,  273,  292,  309,  328,  345,  362,  378,
-  397,  415,  431,  447,  464,  481,  2,    3,    6,    11,   17,   26,   35,
-  45,   58,   73,   90,   106,  123,  146,  168,  193,  215,  236,  255,  274,
-  294,  310,  329,  346,  363,  381,  399,  416,  432,  448,  465,  482,  5,
-  7,    8,    13,   20,   28,   37,   50,   62,   75,   92,   108,  129,  150,
-  170,  195,  216,  240,  259,  275,  295,  312,  331,  348,  365,  383,  400,
-  417,  433,  449,  467,  485,  10,   12,   14,   19,   23,   31,   41,   52,
-  65,   81,   96,   113,  133,  152,  175,  201,  221,  243,  260,  280,  297,
-  315,  333,  350,  367,  385,  402,  418,  434,  452,  470,  486,  16,   18,
-  21,   24,   30,   39,   48,   59,   69,   83,   100,  119,  137,  158,  181,
-  203,  226,  244,  264,  283,  300,  318,  335,  353,  370,  388,  404,  420,
-  438,  455,  471,  487,  25,   27,   29,   32,   40,   46,   54,   67,   79,
-  94,   109,  127,  143,  164,  185,  210,  231,  250,  269,  285,  304,  322,
-  339,  356,  373,  389,  407,  423,  440,  457,  473,  491,  34,   36,   38,
-  42,   49,   55,   64,   76,   87,   102,  117,  135,  154,  176,  197,  219,
-  239,  256,  272,  291,  308,  324,  341,  359,  377,  393,  410,  426,  442,
-  460,  476,  492,  44,   47,   51,   53,   60,   68,   77,   85,   98,   114,
-  131,  147,  162,  183,  208,  227,  245,  262,  282,  298,  314,  332,  349,
-  364,  379,  396,  412,  430,  446,  462,  478,  495,  57,   61,   63,   66,
-  70,   80,   88,   99,   112,  124,  140,  159,  179,  199,  217,  234,  253,
-  270,  286,  305,  321,  337,  354,  371,  387,  403,  419,  435,  451,  468,
-  484,  498,  72,   74,   78,   82,   84,   95,   103,  115,  125,  139,  156,
-  173,  190,  211,  229,  246,  261,  281,  296,  311,  325,  344,  360,  375,
-  392,  408,  425,  441,  456,  472,  489,  500,  89,   91,   93,   97,   101,
-  110,  118,  132,  141,  157,  171,  186,  206,  224,  241,  257,  271,  287,
-  303,  320,  336,  351,  366,  384,  398,  413,  429,  445,  461,  477,  493,
-  502,  105,  107,  111,  116,  120,  128,  136,  148,  160,  174,  187,  205,
-  222,  237,  251,  267,  284,  299,  313,  327,  343,  358,  374,  390,  405,
-  422,  437,  453,  469,  483,  497,  505,  122,  126,  130,  134,  138,  144,
-  155,  163,  180,  191,  207,  223,  232,  248,  265,  278,  293,  307,  323,
-  338,  352,  368,  382,  395,  411,  427,  443,  459,  475,  490,  501,  507,
-  145,  149,  151,  153,  161,  165,  177,  184,  200,  212,  225,  238,  249,
-  263,  276,  289,  306,  319,  334,  347,  361,  376,  391,  406,  421,  436,
-  450,  463,  479,  496,  504,  509,  167,  169,  172,  178,  182,  188,  198,
-  209,  218,  230,  242,  252,  266,  277,  288,  301,  317,  330,  342,  357,
-  372,  386,  401,  414,  428,  444,  458,  474,  488,  499,  506,  510,  192,
-  194,  196,  202,  204,  213,  220,  228,  235,  247,  258,  268,  279,  290,
-  302,  316,  326,  340,  355,  369,  380,  394,  409,  424,  439,  454,  466,
-  480,  494,  503,  508,  511,  512,  513,  514,  515,  516,  517,  520,  523,
-  526,  532,  537,  545,  551,  561,  573,  581,  596,  610,  625,  642,  661,
-  680,  701,  722,  745,  770,  800,  827,  853,  875,  897,  919,  518,  519,
-  521,  522,  524,  525,  528,  533,  536,  542,  549,  557,  564,  575,  585,
-  597,  611,  623,  640,  656,  676,  696,  717,  739,  763,  789,  815,  844,
-  867,  889,  909,  927,  527,  529,  530,  531,  534,  535,  538,  544,  548,
-  555,  560,  569,  579,  589,  598,  614,  626,  641,  655,  673,  690,  712,
-  735,  760,  780,  806,  834,  857,  880,  902,  921,  940,  539,  540,  541,
-  543,  546,  547,  550,  558,  562,  567,  576,  583,  593,  603,  616,  631,
-  643,  657,  674,  689,  710,  733,  752,  776,  803,  830,  850,  872,  892,
-  913,  934,  950,  552,  553,  554,  556,  559,  563,  565,  571,  577,  582,
-  591,  600,  609,  620,  634,  644,  662,  677,  691,  711,  730,  748,  773,
-  798,  822,  847,  869,  887,  906,  925,  942,  961,  566,  568,  570,  572,
-  574,  578,  580,  588,  594,  601,  608,  617,  629,  637,  652,  665,  681,
-  697,  713,  734,  749,  772,  793,  819,  842,  863,  884,  904,  923,  938,
-  954,  967,  584,  586,  587,  590,  592,  595,  599,  605,  613,  618,  628,
-  636,  648,  660,  671,  686,  702,  718,  736,  753,  774,  794,  818,  840,
-  860,  882,  900,  917,  936,  952,  965,  977,  602,  604,  606,  607,  612,
-  615,  619,  624,  633,  638,  649,  658,  666,  683,  692,  707,  723,  740,
-  761,  777,  799,  820,  841,  859,  877,  895,  915,  932,  948,  963,  975,
-  986,  621,  622,  627,  630,  632,  635,  639,  645,  653,  663,  668,  682,
-  688,  704,  716,  732,  746,  764,  781,  804,  823,  843,  861,  878,  894,
-  911,  930,  946,  959,  973,  984,  994,  646,  647,  650,  651,  654,  659,
-  664,  667,  678,  685,  693,  706,  715,  728,  743,  757,  771,  790,  807,
-  831,  848,  864,  883,  896,  912,  928,  944,  957,  971,  982,  992,  1001,
-  669,  670,  672,  675,  679,  684,  687,  694,  703,  709,  719,  729,  741,
-  754,  767,  783,  801,  816,  835,  851,  870,  885,  901,  916,  931,  945,
-  956,  969,  980,  990,  999,  1007, 695,  698,  699,  700,  705,  708,  714,
-  720,  726,  738,  744,  758,  768,  779,  795,  810,  828,  845,  858,  873,
-  888,  905,  918,  933,  947,  958,  970,  979,  988,  997,  1005, 1012, 721,
-  724,  725,  727,  731,  737,  742,  747,  756,  765,  775,  786,  797,  809,
-  825,  837,  854,  868,  881,  893,  907,  924,  937,  949,  960,  972,  981,
-  989,  996,  1003, 1010, 1016, 750,  751,  755,  759,  762,  766,  769,  778,
-  787,  792,  805,  812,  829,  838,  852,  865,  876,  890,  903,  914,  926,
-  939,  953,  964,  974,  983,  991,  998,  1004, 1009, 1014, 1019, 782,  784,
-  785,  788,  791,  796,  802,  808,  814,  826,  836,  846,  856,  866,  874,
-  886,  898,  910,  922,  935,  943,  955,  966,  976,  985,  993,  1000, 1006,
-  1011, 1015, 1018, 1021, 811,  813,  817,  821,  824,  832,  833,  839,  849,
-  855,  862,  871,  879,  891,  899,  908,  920,  929,  941,  951,  962,  968,
-  978,  987,  995,  1002, 1008, 1013, 1017, 1020, 1022, 1023,
-};
-
-DECLARE_ALIGNED(16, static const int16_t, av1_qtr_iscan_32x32[1024]) = {
-  0,    1,    4,    9,    15,   22,   33,   43,   56,   71,   86,   104,  121,
-  142,  166,  189,  256,  268,  286,  310,  334,  364,  400,  435,  471,  510,
-  553,  598,  640,  683,  732,  780,  2,    3,    6,    11,   17,   26,   35,
-  45,   58,   73,   90,   106,  123,  146,  168,  193,  258,  270,  288,  312,
-  338,  366,  402,  437,  473,  516,  557,  600,  642,  687,  736,  782,  5,
-  7,    8,    13,   20,   28,   37,   50,   62,   75,   92,   108,  129,  150,
-  170,  195,  260,  274,  292,  314,  340,  370,  406,  441,  478,  520,  559,
-  604,  646,  689,  740,  788,  10,   12,   14,   19,   23,   31,   41,   52,
-  65,   81,   96,   113,  133,  152,  175,  201,  262,  276,  294,  316,  344,
-  376,  410,  445,  484,  524,  563,  606,  648,  697,  746,  793,  16,   18,
-  21,   24,   30,   39,   48,   59,   69,   83,   100,  119,  137,  158,  181,
-  203,  264,  278,  300,  322,  350,  380,  414,  451,  490,  530,  571,  612,
-  656,  705,  750,  799,  25,   27,   29,   32,   40,   46,   54,   67,   79,
-  94,   109,  127,  143,  164,  185,  210,  266,  282,  302,  326,  354,  388,
-  422,  459,  496,  533,  579,  618,  665,  711,  754,  809,  34,   36,   38,
-  42,   49,   55,   64,   76,   87,   102,  117,  135,  154,  176,  197,  216,
-  272,  289,  308,  332,  362,  392,  427,  465,  504,  545,  585,  626,  671,
-  717,  766,  813,  44,   47,   51,   53,   60,   68,   77,   85,   98,   114,
-  131,  147,  162,  183,  208,  222,  279,  298,  320,  346,  374,  408,  442,
-  475,  511,  551,  592,  638,  681,  726,  772,  821,  57,   61,   63,   66,
-  70,   80,   88,   99,   112,  124,  140,  159,  179,  199,  214,  227,  284,
-  304,  328,  355,  386,  418,  455,  492,  528,  567,  608,  649,  695,  742,
-  786,  833,  72,   74,   78,   82,   84,   95,   103,  115,  125,  139,  156,
-  173,  190,  211,  224,  233,  296,  317,  342,  367,  394,  433,  466,  500,
-  543,  581,  622,  667,  707,  752,  803,  843,  89,   91,   93,   97,   101,
-  110,  118,  132,  141,  157,  171,  186,  206,  220,  231,  239,  306,  330,
-  352,  384,  415,  447,  482,  521,  554,  593,  636,  677,  722,  770,  815,
-  852,  105,  107,  111,  116,  120,  128,  136,  148,  160,  174,  187,  205,
-  218,  229,  237,  244,  323,  347,  371,  398,  431,  463,  498,  534,  573,
-  616,  654,  698,  743,  783,  831,  864,  122,  126,  130,  134,  138,  144,
-  155,  163,  180,  191,  207,  219,  226,  235,  242,  248,  335,  360,  390,
-  419,  449,  485,  518,  549,  587,  630,  672,  715,  760,  805,  845,  872,
-  145,  149,  151,  153,  161,  165,  177,  184,  200,  212,  221,  230,  236,
-  241,  246,  251,  356,  382,  411,  438,  469,  501,  539,  577,  613,  652,
-  690,  730,  776,  822,  858,  886,  167,  169,  172,  178,  182,  188,  198,
-  209,  215,  225,  232,  238,  243,  247,  250,  253,  378,  403,  428,  461,
-  494,  526,  560,  594,  632,  675,  713,  755,  801,  837,  868,  897,  192,
-  194,  196,  202,  204,  213,  217,  223,  228,  234,  240,  245,  249,  252,
-  254,  255,  395,  425,  457,  488,  512,  547,  583,  619,  659,  699,  737,
-  778,  819,  854,  882,  907,  257,  259,  261,  263,  265,  267,  273,  280,
-  285,  297,  307,  324,  336,  357,  379,  396,  424,  452,  479,  508,  541,
-  574,  609,  643,  679,  719,  764,  806,  841,  870,  895,  919,  269,  271,
-  275,  277,  281,  283,  290,  299,  305,  318,  331,  348,  361,  383,  404,
-  426,  453,  476,  506,  535,  568,  601,  634,  669,  708,  748,  789,  829,
-  860,  887,  909,  927,  287,  291,  293,  295,  301,  303,  309,  321,  329,
-  343,  353,  372,  391,  412,  429,  458,  480,  507,  532,  564,  590,  627,
-  663,  703,  733,  773,  816,  847,  876,  901,  921,  940,  311,  313,  315,
-  319,  325,  327,  333,  349,  358,  368,  385,  399,  420,  439,  462,  489,
-  509,  536,  565,  589,  624,  661,  691,  727,  768,  810,  838,  866,  890,
-  913,  934,  950,  337,  339,  341,  345,  351,  359,  363,  375,  387,  397,
-  416,  432,  450,  470,  495,  513,  542,  569,  591,  625,  657,  684,  723,
-  762,  797,  834,  862,  884,  905,  925,  942,  961,  365,  369,  373,  377,
-  381,  389,  393,  409,  421,  434,  448,  464,  486,  502,  527,  548,  575,
-  602,  628,  662,  685,  721,  756,  794,  827,  855,  880,  903,  923,  938,
-  954,  967,  401,  405,  407,  413,  417,  423,  430,  443,  456,  467,  483,
-  499,  519,  540,  561,  584,  610,  635,  664,  692,  724,  757,  792,  825,
-  850,  878,  899,  917,  936,  952,  965,  977,  436,  440,  444,  446,  454,
-  460,  468,  477,  493,  503,  522,  537,  550,  578,  595,  620,  644,  670,
-  704,  728,  763,  795,  826,  849,  873,  893,  915,  932,  948,  963,  975,
-  986,  472,  474,  481,  487,  491,  497,  505,  514,  529,  544,  555,  576,
-  588,  614,  633,  660,  680,  709,  734,  769,  798,  828,  851,  874,  892,
-  911,  930,  946,  959,  973,  984,  994,  515,  517,  523,  525,  531,  538,
-  546,  552,  570,  582,  596,  617,  631,  653,  676,  700,  720,  749,  774,
-  811,  835,  856,  879,  894,  912,  928,  944,  957,  971,  982,  992,  1001,
-  556,  558,  562,  566,  572,  580,  586,  597,  611,  623,  637,  655,  673,
-  693,  714,  738,  765,  790,  817,  839,  863,  881,  900,  916,  931,  945,
-  956,  969,  980,  990,  999,  1007, 599,  603,  605,  607,  615,  621,  629,
-  639,  650,  668,  678,  701,  716,  731,  758,  779,  807,  830,  848,  867,
-  885,  904,  918,  933,  947,  958,  970,  979,  988,  997,  1005, 1012, 641,
-  645,  647,  651,  658,  666,  674,  682,  696,  710,  725,  744,  761,  777,
-  802,  820,  842,  861,  877,  891,  906,  924,  937,  949,  960,  972,  981,
-  989,  996,  1003, 1010, 1016, 686,  688,  694,  702,  706,  712,  718,  729,
-  745,  753,  771,  784,  808,  823,  840,  857,  871,  888,  902,  914,  926,
-  939,  953,  964,  974,  983,  991,  998,  1004, 1009, 1014, 1019, 735,  739,
-  741,  747,  751,  759,  767,  775,  787,  804,  818,  832,  846,  859,  869,
-  883,  896,  910,  922,  935,  943,  955,  966,  976,  985,  993,  1000, 1006,
-  1011, 1015, 1018, 1021, 781,  785,  791,  796,  800,  812,  814,  824,  836,
-  844,  853,  865,  875,  889,  898,  908,  920,  929,  941,  951,  962,  968,
-  978,  987,  995,  1002, 1008, 1013, 1017, 1020, 1022, 1023,
-};
-
 #if CONFIG_TX64X64
 #define av1_default_iscan_32x64 av1_default_iscan_32x32
 #define av1_default_iscan_64x32 av1_default_iscan_32x32
@@ -4490,14 +3542,22 @@
       // TX_32X32
       { default_scan_32x32, av1_default_iscan_32x32,
         default_scan_32x32_neighbors },
-      { h2_scan_32x32, av1_h2_iscan_32x32, h2_scan_32x32_neighbors },
-      { v2_scan_32x32, av1_v2_iscan_32x32, v2_scan_32x32_neighbors },
-      { qtr_scan_32x32, av1_qtr_iscan_32x32, qtr_scan_32x32_neighbors },
-      { h2_scan_32x32, av1_h2_iscan_32x32, h2_scan_32x32_neighbors },
-      { v2_scan_32x32, av1_v2_iscan_32x32, v2_scan_32x32_neighbors },
-      { qtr_scan_32x32, av1_qtr_iscan_32x32, qtr_scan_32x32_neighbors },
-      { qtr_scan_32x32, av1_qtr_iscan_32x32, qtr_scan_32x32_neighbors },
-      { qtr_scan_32x32, av1_qtr_iscan_32x32, qtr_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
       { mrow_scan_32x32, av1_mrow_iscan_32x32, mrow_scan_32x32_neighbors },
       { mrow_scan_32x32, av1_mrow_iscan_32x32, mrow_scan_32x32_neighbors },
       { mcol_scan_32x32, av1_mcol_iscan_32x32, mcol_scan_32x32_neighbors },
@@ -4939,8 +3999,8 @@
   {
       // TX_4X4
       { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors },
-      { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors },
-      { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors },
+      { row_scan_4x4, av1_row_iscan_4x4, row_scan_4x4_neighbors },
+      { col_scan_4x4, av1_col_iscan_4x4, col_scan_4x4_neighbors },
       { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors },
       { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors },
       { default_scan_4x4, av1_default_iscan_4x4, default_scan_4x4_neighbors },
@@ -4958,8 +4018,8 @@
   {
       // TX_8X8
       { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors },
-      { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors },
-      { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors },
+      { row_scan_8x8, av1_row_iscan_8x8, row_scan_8x8_neighbors },
+      { col_scan_8x8, av1_col_iscan_8x8, col_scan_8x8_neighbors },
       { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors },
       { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors },
       { default_scan_8x8, av1_default_iscan_8x8, default_scan_8x8_neighbors },
@@ -4978,10 +4038,8 @@
       // TX_16X16
       { default_scan_16x16, av1_default_iscan_16x16,
         default_scan_16x16_neighbors },
-      { default_scan_16x16, av1_default_iscan_16x16,
-        default_scan_16x16_neighbors },
-      { default_scan_16x16, av1_default_iscan_16x16,
-        default_scan_16x16_neighbors },
+      { row_scan_16x16, av1_row_iscan_16x16, row_scan_16x16_neighbors },
+      { col_scan_16x16, av1_col_iscan_16x16, col_scan_16x16_neighbors },
       { default_scan_16x16, av1_default_iscan_16x16,
         default_scan_16x16_neighbors },
       { default_scan_16x16, av1_default_iscan_16x16,
@@ -5006,14 +4064,22 @@
       // TX_32X32
       { default_scan_32x32, av1_default_iscan_32x32,
         default_scan_32x32_neighbors },
-      { h2_scan_32x32, av1_h2_iscan_32x32, h2_scan_32x32_neighbors },
-      { v2_scan_32x32, av1_v2_iscan_32x32, v2_scan_32x32_neighbors },
-      { qtr_scan_32x32, av1_qtr_iscan_32x32, qtr_scan_32x32_neighbors },
-      { h2_scan_32x32, av1_h2_iscan_32x32, h2_scan_32x32_neighbors },
-      { v2_scan_32x32, av1_v2_iscan_32x32, v2_scan_32x32_neighbors },
-      { qtr_scan_32x32, av1_qtr_iscan_32x32, qtr_scan_32x32_neighbors },
-      { qtr_scan_32x32, av1_qtr_iscan_32x32, qtr_scan_32x32_neighbors },
-      { qtr_scan_32x32, av1_qtr_iscan_32x32, qtr_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
+      { default_scan_32x32, av1_default_iscan_32x32,
+        default_scan_32x32_neighbors },
       { mrow_scan_32x32, av1_mrow_iscan_32x32, mrow_scan_32x32_neighbors },
       { mrow_scan_32x32, av1_mrow_iscan_32x32, mrow_scan_32x32_neighbors },
       { mcol_scan_32x32, av1_mcol_iscan_32x32, mcol_scan_32x32_neighbors },
@@ -5285,10 +4351,8 @@
       // TX_4X16
       { default_scan_4x16, av1_default_iscan_4x16,
         default_scan_4x16_neighbors },
-      { default_scan_4x16, av1_default_iscan_4x16,
-        default_scan_4x16_neighbors },
-      { default_scan_4x16, av1_default_iscan_4x16,
-        default_scan_4x16_neighbors },
+      { mrow_scan_4x16, av1_mrow_iscan_4x16, mrow_scan_4x16_neighbors },
+      { mcol_scan_4x16, av1_mcol_iscan_4x16, mcol_scan_4x16_neighbors },
       { default_scan_4x16, av1_default_iscan_4x16,
         default_scan_4x16_neighbors },
       { default_scan_4x16, av1_default_iscan_4x16,
@@ -5313,10 +4377,8 @@
       // TX_16X4
       { default_scan_16x4, av1_default_iscan_16x4,
         default_scan_16x4_neighbors },
-      { default_scan_16x4, av1_default_iscan_16x4,
-        default_scan_16x4_neighbors },
-      { default_scan_16x4, av1_default_iscan_16x4,
-        default_scan_16x4_neighbors },
+      { mrow_scan_16x4, av1_mrow_iscan_16x4, mrow_scan_16x4_neighbors },
+      { mcol_scan_16x4, av1_mcol_iscan_16x4, mcol_scan_16x4_neighbors },
       { default_scan_16x4, av1_default_iscan_16x4,
         default_scan_16x4_neighbors },
       { default_scan_16x4, av1_default_iscan_16x4,
@@ -5341,10 +4403,8 @@
       // TX_8X32
       { default_scan_8x32, av1_default_iscan_8x32,
         default_scan_8x32_neighbors },
-      { default_scan_8x32, av1_default_iscan_8x32,
-        default_scan_8x32_neighbors },
-      { default_scan_8x32, av1_default_iscan_8x32,
-        default_scan_8x32_neighbors },
+      { mrow_scan_8x32, av1_mrow_iscan_8x32, mrow_scan_8x32_neighbors },
+      { mcol_scan_8x32, av1_mcol_iscan_8x32, mcol_scan_8x32_neighbors },
       { default_scan_8x32, av1_default_iscan_8x32,
         default_scan_8x32_neighbors },
       { default_scan_8x32, av1_default_iscan_8x32,
@@ -5369,10 +4429,8 @@
       // TX_32X8
       { default_scan_32x8, av1_default_iscan_32x8,
         default_scan_32x8_neighbors },
-      { default_scan_32x8, av1_default_iscan_32x8,
-        default_scan_32x8_neighbors },
-      { default_scan_32x8, av1_default_iscan_32x8,
-        default_scan_32x8_neighbors },
+      { mrow_scan_32x8, av1_mrow_iscan_32x8, mrow_scan_32x8_neighbors },
+      { mcol_scan_32x8, av1_mcol_iscan_32x8, mcol_scan_32x8_neighbors },
       { default_scan_32x8, av1_default_iscan_32x8,
         default_scan_32x8_neighbors },
       { default_scan_32x8, av1_default_iscan_32x8,