/* * Chinese AVS video (AVS1-P2, JiZhun profile) decoder. * Copyright (c) 2006 Stefan Gehrer * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #define SLICE_MIN_START_CODE 0x00000101 #define SLICE_MAX_START_CODE 0x000001af #define EXT_START_CODE 0x000001b5 #define USER_START_CODE 0x000001b2 #define SEQ_START_CODE 0x000001b0 #define PIC_I_START_CODE 0x000001b3 #define PIC_PB_START_CODE 0x000001b6 #define A_AVAIL 1 #define B_AVAIL 2 #define C_AVAIL 4 #define D_AVAIL 8 #define NOT_AVAIL -1 #define REF_INTRA -2 #define REF_DIR -3 #define ESCAPE_CODE 59 #define FWD0 0x01 #define FWD1 0x02 #define BWD0 0x04 #define BWD1 0x08 #define SYM0 0x10 #define SYM1 0x20 #define SPLITH 0x40 #define SPLITV 0x80 #define MV_BWD_OFFS 12 #define MV_STRIDE 4 enum mb_t { I_8X8 = 0, P_SKIP, P_16X16, P_16X8, P_8X16, P_8X8, B_SKIP, B_DIRECT, B_FWD_16X16, B_BWD_16X16, B_SYM_16X16, B_8X8 = 29 }; enum sub_mb_t { B_SUB_DIRECT, B_SUB_FWD, B_SUB_BWD, B_SUB_SYM }; enum intra_luma_t { INTRA_L_VERT, INTRA_L_HORIZ, INTRA_L_LP, INTRA_L_DOWN_LEFT, INTRA_L_DOWN_RIGHT, INTRA_L_LP_LEFT, INTRA_L_LP_TOP, INTRA_L_DC_128 }; enum intra_chroma_t { INTRA_C_LP, INTRA_C_HORIZ, INTRA_C_VERT, INTRA_C_PLANE, INTRA_C_LP_LEFT, INTRA_C_LP_TOP, INTRA_C_DC_128, }; enum mv_pred_t { MV_PRED_MEDIAN, MV_PRED_LEFT, MV_PRED_TOP, MV_PRED_TOPRIGHT, MV_PRED_PSKIP, MV_PRED_BSKIP }; enum block_t { BLK_16X16, BLK_16X8, BLK_8X16, BLK_8X8 }; enum mv_loc_t { MV_FWD_D3 = 0, MV_FWD_B2, MV_FWD_B3, MV_FWD_C2, MV_FWD_A1, MV_FWD_X0, MV_FWD_X1, MV_FWD_A3 = 8, MV_FWD_X2, MV_FWD_X3, MV_BWD_D3 = MV_BWD_OFFS, MV_BWD_B2, MV_BWD_B3, MV_BWD_C2, MV_BWD_A1, MV_BWD_X0, MV_BWD_X1, MV_BWD_A3 = MV_BWD_OFFS+8, MV_BWD_X2, MV_BWD_X3 }; static const uint8_t partition_flags[30] = { 0, //I_8X8 0, //P_SKIP 0, //P_16X16 SPLITH, //P_16X8 SPLITV, //P_8X16 SPLITH|SPLITV, //P_8X8 SPLITH|SPLITV, //B_SKIP SPLITH|SPLITV, //B_DIRECT 0, //B_FWD_16X16 0, //B_BWD_16X16 0, //B_SYM_16X16 FWD0|FWD1 |SPLITH, FWD0|FWD1 |SPLITV, BWD0|BWD1 |SPLITH, BWD0|BWD1 |SPLITV, FWD0|BWD1 |SPLITH, FWD0|BWD1 |SPLITV, BWD0|FWD1 |SPLITH, BWD0|FWD1 |SPLITV, FWD0|FWD1 |SYM1|SPLITH, FWD0|FWD1 |SYM1 |SPLITV, BWD0|FWD1 |SYM1|SPLITH, BWD0|FWD1 |SYM1 |SPLITV, FWD0|FWD1|SYM0 |SPLITH, FWD0|FWD1|SYM0 |SPLITV, FWD0|BWD1|SYM0 |SPLITH, FWD0|BWD1|SYM0 |SPLITV, FWD0|FWD1|SYM0|SYM1|SPLITH, FWD0|FWD1|SYM0|SYM1 |SPLITV, SPLITH|SPLITV, //B_8X8 = 29 }; static const uint8_t scan3x3[4] = {4,5,7,8}; static const uint8_t mv_scan[4] = { MV_FWD_X0,MV_FWD_X1, MV_FWD_X2,MV_FWD_X3 }; static const uint8_t cbp_tab[64][2] = { {63, 0},{15,15},{31,63},{47,31},{ 0,16},{14,32},{13,47},{11,13}, { 7,14},{ 5,11},{10,12},{ 8, 5},{12,10},{61, 7},{ 4,48},{55, 3}, { 1, 2},{ 2, 8},{59, 4},{ 3, 1},{62,61},{ 9,55},{ 6,59},{29,62}, {45,29},{51,27},{23,23},{39,19},{27,30},{46,28},{53, 9},{30, 6}, {43,60},{37,21},{60,44},{16,26},{21,51},{28,35},{19,18},{35,20}, {42,24},{26,53},{44,17},{32,37},{58,39},{24,45},{20,58},{17,43}, {18,42},{48,46},{22,36},{33,33},{25,34},{49,40},{40,52},{36,49}, {34,50},{50,56},{52,25},{54,22},{41,54},{56,57},{38,41},{57,38} }; static const uint8_t chroma_qp[64] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15, 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31, 32,33,34,35,36,37,38,39,40,41,42,42,43,43,44,44, 45,45,46,46,47,47,48,48,48,49,49,49,50,50,50,51 }; static const uint8_t dequant_shift[64] = { 14,14,14,14,14,14,14,14, 13,13,13,13,13,13,13,13, 13,12,12,12,12,12,12,12, 11,11,11,11,11,11,11,11, 11,10,10,10,10,10,10,10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7 }; static const uint16_t dequant_mul[64] = { 32768,36061,38968,42495,46341,50535,55437,60424, 32932,35734,38968,42495,46177,50535,55109,59933, 65535,35734,38968,42577,46341,50617,55027,60097, 32809,35734,38968,42454,46382,50576,55109,60056, 65535,35734,38968,42495,46320,50515,55109,60076, 65535,35744,38968,42495,46341,50535,55099,60087, 65535,35734,38973,42500,46341,50535,55109,60097, 32771,35734,38965,42497,46341,50535,55109,60099 }; DECLARE_ALIGNED_8(typedef, struct) { int16_t x; int16_t y; int16_t dist; int16_t ref; } vector_t; /** marks block as unavailable, i.e. out of picture or not yet decoded */ static const vector_t un_mv = {0,0,1,NOT_AVAIL}; /** marks block as "no prediction from this direction" e.g. forward motion vector in BWD partition */ static const vector_t dir_mv = {0,0,1,REF_DIR}; /** marks block as using intra prediction */ static const vector_t intra_mv = {0,0,1,REF_INTRA}; typedef struct residual_vlc_t { int8_t rltab[59][3]; int8_t level_add[26]; int8_t golomb_order; int inc_limit; int8_t max_run; } residual_vlc_t; static const residual_vlc_t intra_2dvlc[7] = { { { //level / run / table_inc { 1, 0, 1},{ -1, 0, 1},{ 1, 1, 1},{ -1, 1, 1},{ 1, 2, 1},{ -1, 2, 1}, { 1, 3, 1},{ -1, 3, 1},{ 1, 4, 1},{ -1, 4, 1},{ 1, 5, 1},{ -1, 5, 1}, { 1, 6, 1},{ -1, 6, 1},{ 1, 7, 1},{ -1, 7, 1},{ 1, 8, 1},{ -1, 8, 1}, { 1, 9, 1},{ -1, 9, 1},{ 1,10, 1},{ -1,10, 1},{ 2, 0, 2},{ -2, 0, 2}, { 1,11, 1},{ -1,11, 1},{ 1,12, 1},{ -1,12, 1},{ 1,13, 1},{ -1,13, 1}, { 1,14, 1},{ -1,14, 1},{ 2, 1, 2},{ -2, 1, 2},{ 1,15, 1},{ -1,15, 1}, { 1,16, 1},{ -1,16, 1},{ 3, 0, 3},{ -3, 0, 3},{ 1,17, 1},{ -1,17, 1}, { 1,18, 1},{ -1,18, 1},{ 2, 2, 2},{ -2, 2, 2},{ 1,19, 1},{ -1,19, 1}, { 1,20, 1},{ -1,20, 1},{ 2, 3, 2},{ -2, 3, 2},{ 1,21, 1},{ -1,21, 1}, { 2, 4, 2},{ -2, 4, 2},{ 1,22, 1},{ -1,22, 1},{ 0, 0,-1} }, //level_add { 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,-1,-1,-1}, 2, //golomb_order 0, //inc_limit 22, //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 2, 0, 1},{ -2, 0, 1}, { 1, 2, 0},{ -1, 2, 0},{ 0, 0, 0},{ 1, 3, 0},{ -1, 3, 0},{ 1, 4, 0}, { -1, 4, 0},{ 1, 5, 0},{ -1, 5, 0},{ 3, 0, 2},{ -3, 0, 2},{ 2, 1, 1}, { -2, 1, 1},{ 1, 6, 0},{ -1, 6, 0},{ 1, 7, 0},{ -1, 7, 0},{ 1, 8, 0}, { -1, 8, 0},{ 2, 2, 1},{ -2, 2, 1},{ 4, 0, 2},{ -4, 0, 2},{ 1, 9, 0}, { -1, 9, 0},{ 1,10, 0},{ -1,10, 0},{ 2, 3, 1},{ -2, 3, 1},{ 3, 1, 2}, { -3, 1, 2},{ 1,11, 0},{ -1,11, 0},{ 2, 4, 1},{ -2, 4, 1},{ 5, 0, 3}, { -5, 0, 3},{ 1,12, 0},{ -1,12, 0},{ 2, 5, 1},{ -2, 5, 1},{ 1,13, 0}, { -1,13, 0},{ 2, 6, 1},{ -2, 6, 1},{ 2, 7, 1},{ -2, 7, 1},{ 3, 2, 2}, { -3, 2, 2},{ 6, 0, 3},{ -6, 0, 3},{ 1,14, 0},{ -1,14, 0} }, //level_add { 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 1, //inc_limit 14, //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 1, 1, 0},{ -1, 1, 0}, { 3, 0, 1},{ -3, 0, 1},{ 0, 0, 0},{ 1, 2, 0},{ -1, 2, 0},{ 2, 1, 0}, { -2, 1, 0},{ 4, 0, 1},{ -4, 0, 1},{ 1, 3, 0},{ -1, 3, 0},{ 5, 0, 2}, { -5, 0, 2},{ 1, 4, 0},{ -1, 4, 0},{ 3, 1, 1},{ -3, 1, 1},{ 2, 2, 0}, { -2, 2, 0},{ 1, 5, 0},{ -1, 5, 0},{ 6, 0, 2},{ -6, 0, 2},{ 2, 3, 0}, { -2, 3, 0},{ 1, 6, 0},{ -1, 6, 0},{ 4, 1, 1},{ -4, 1, 1},{ 7, 0, 2}, { -7, 0, 2},{ 3, 2, 1},{ -3, 2, 1},{ 2, 4, 0},{ -2, 4, 0},{ 1, 7, 0}, { -1, 7, 0},{ 2, 5, 0},{ -2, 5, 0},{ 8, 0, 3},{ -8, 0, 3},{ 1, 8, 0}, { -1, 8, 0},{ 5, 1, 2},{ -5, 1, 2},{ 3, 3, 1},{ -3, 3, 1},{ 2, 6, 0}, { -2, 6, 0},{ 9, 0, 3},{ -9, 0, 3},{ 1, 9, 0},{ -1, 9, 0} }, //level_add {10, 6, 4, 4, 3, 3, 3, 2, 2, 2,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 2, //inc_limit 9, //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},{ -3, 0, 0}, { 1, 1, 0},{ -1, 1, 0},{ 0, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 1}, { -5, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 1, 2, 0},{ -1, 2, 0},{ 6, 0, 1}, { -6, 0, 1},{ 3, 1, 0},{ -3, 1, 0},{ 7, 0, 1},{ -7, 0, 1},{ 1, 3, 0}, { -1, 3, 0},{ 8, 0, 2},{ -8, 0, 2},{ 2, 2, 0},{ -2, 2, 0},{ 4, 1, 0}, { -4, 1, 0},{ 1, 4, 0},{ -1, 4, 0},{ 9, 0, 2},{ -9, 0, 2},{ 5, 1, 1}, { -5, 1, 1},{ 2, 3, 0},{ -2, 3, 0},{ 10, 0, 2},{-10, 0, 2},{ 3, 2, 0}, { -3, 2, 0},{ 1, 5, 0},{ -1, 5, 0},{ 11, 0, 3},{-11, 0, 3},{ 6, 1, 1}, { -6, 1, 1},{ 1, 6, 0},{ -1, 6, 0},{ 2, 4, 0},{ -2, 4, 0},{ 3, 3, 0}, { -3, 3, 0},{ 12, 0, 3},{-12, 0, 3},{ 4, 2, 0},{ -4, 2, 0} }, //level_add {13, 7, 5, 4, 3, 2, 2,-1,-1,-1 -1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 4, //inc_limit 6, //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},{ -3, 0, 0}, { 0, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0}, { -6, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 1}, { -8, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 9, 0, 1},{ -9, 0, 1},{ 10, 0, 1}, {-10, 0, 1},{ 1, 2, 0},{ -1, 2, 0},{ 3, 1, 0},{ -3, 1, 0},{ 11, 0, 2}, {-11, 0, 2},{ 4, 1, 0},{ -4, 1, 0},{ 12, 0, 2},{-12, 0, 2},{ 13, 0, 2}, {-13, 0, 2},{ 5, 1, 0},{ -5, 1, 0},{ 1, 3, 0},{ -1, 3, 0},{ 2, 2, 0}, { -2, 2, 0},{ 14, 0, 2},{-14, 0, 2},{ 6, 1, 0},{ -6, 1, 0},{ 15, 0, 2}, {-15, 0, 2},{ 16, 0, 2},{-16, 0, 2},{ 3, 2, 0},{ -3, 2, 0},{ 1, 4, 0}, { -1, 4, 0},{ 7, 1, 0},{ -7, 1, 0},{ 17, 0, 2},{-17, 0, 2}, }, //level_add {18, 8, 4, 2, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 7, //inc_limit 4, //max_run },{ { //level / run { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0}, { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0}, { -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 0},{ -8, 0, 0},{ 9, 0, 0}, { -9, 0, 0},{ 10, 0, 0},{-10, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 11, 0, 1}, {-11, 0, 1},{ 12, 0, 1},{-12, 0, 1},{ 13, 0, 1},{-13, 0, 1},{ 2, 1, 0}, { -2, 1, 0},{ 14, 0, 1},{-14, 0, 1},{ 15, 0, 1},{-15, 0, 1},{ 3, 1, 0}, { -3, 1, 0},{ 16, 0, 1},{-16, 0, 1},{ 1, 2, 0},{ -1, 2, 0},{ 17, 0, 1}, {-17, 0, 1},{ 4, 1, 0},{ -4, 1, 0},{ 18, 0, 1},{-18, 0, 1},{ 5, 1, 0}, { -5, 1, 0},{ 19, 0, 1},{-19, 0, 1},{ 20, 0, 1},{-20, 0, 1},{ 6, 1, 0}, { -6, 1, 0},{ 21, 0, 1},{-21, 0, 1},{ 2, 2, 0},{ -2, 2, 0}, }, //level_add {22, 7, 3,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 10, //inc_limit 2, //max_run },{ { //level / run { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0}, { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0}, { -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 0},{ -8, 0, 0},{ 9, 0, 0}, { -9, 0, 0},{ 10, 0, 0},{-10, 0, 0},{ 11, 0, 0},{-11, 0, 0},{ 12, 0, 0}, {-12, 0, 0},{ 13, 0, 0},{-13, 0, 0},{ 14, 0, 0},{-14, 0, 0},{ 15, 0, 0}, {-15, 0, 0},{ 16, 0, 0},{-16, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 17, 0, 0}, {-17, 0, 0},{ 18, 0, 0},{-18, 0, 0},{ 19, 0, 0},{-19, 0, 0},{ 20, 0, 0}, {-20, 0, 0},{ 21, 0, 0},{-21, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 22, 0, 0}, {-22, 0, 0},{ 23, 0, 0},{-23, 0, 0},{ 24, 0, 0},{-24, 0, 0},{ 25, 0, 0}, {-25, 0, 0},{ 3, 1, 0},{ -3, 1, 0},{ 26, 0, 0},{-26, 0, 0} }, //level_add {27, 4,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order INT_MAX, //inc_limit 1, //max_run } }; static const residual_vlc_t inter_2dvlc[7] = { { { //level / run { 1, 0, 1},{ -1, 0, 1},{ 1, 1, 1},{ -1, 1, 1},{ 1, 2, 1},{ -1, 2, 1}, { 1, 3, 1},{ -1, 3, 1},{ 1, 4, 1},{ -1, 4, 1},{ 1, 5, 1},{ -1, 5, 1}, { 1, 6, 1},{ -1, 6, 1},{ 1, 7, 1},{ -1, 7, 1},{ 1, 8, 1},{ -1, 8, 1}, { 1, 9, 1},{ -1, 9, 1},{ 1,10, 1},{ -1,10, 1},{ 1,11, 1},{ -1,11, 1}, { 1,12, 1},{ -1,12, 1},{ 2, 0, 2},{ -2, 0, 2},{ 1,13, 1},{ -1,13, 1}, { 1,14, 1},{ -1,14, 1},{ 1,15, 1},{ -1,15, 1},{ 1,16, 1},{ -1,16, 1}, { 1,17, 1},{ -1,17, 1},{ 1,18, 1},{ -1,18, 1},{ 3, 0, 3},{ -3, 0, 3}, { 1,19, 1},{ -1,19, 1},{ 1,20, 1},{ -1,20, 1},{ 2, 1, 2},{ -2, 1, 2}, { 1,21, 1},{ -1,21, 1},{ 1,22, 1},{ -1,22, 1},{ 1,23, 1},{ -1,23, 1}, { 1,24, 1},{ -1,24, 1},{ 1,25, 1},{ -1,25, 1},{ 0, 0,-1} }, //level_add { 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2}, 3, //golomb_order 0, //inc_limit 25 //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 1, 2, 0}, { -1, 2, 0},{ 1, 3, 0},{ -1, 3, 0},{ 1, 4, 0},{ -1, 4, 0},{ 1, 5, 0}, { -1, 5, 0},{ 2, 0, 1},{ -2, 0, 1},{ 1, 6, 0},{ -1, 6, 0},{ 1, 7, 0}, { -1, 7, 0},{ 1, 8, 0},{ -1, 8, 0},{ 1, 9, 0},{ -1, 9, 0},{ 2, 1, 1}, { -2, 1, 1},{ 1,10, 0},{ -1,10, 0},{ 1,11, 0},{ -1,11, 0},{ 3, 0, 2}, { -3, 0, 2},{ 1,12, 0},{ -1,12, 0},{ 1,13, 0},{ -1,13, 0},{ 2, 2, 1}, { -2, 2, 1},{ 1,14, 0},{ -1,14, 0},{ 2, 3, 1},{ -2, 3, 1},{ 1,15, 0}, { -1,15, 0},{ 2, 4, 1},{ -2, 4, 1},{ 1,16, 0},{ -1,16, 0},{ 4, 0, 3}, { -4, 0, 3},{ 2, 5, 1},{ -2, 5, 1},{ 1,17, 0},{ -1,17, 0},{ 1,18, 0}, { -1,18, 0},{ 2, 6, 1},{ -2, 6, 1},{ 3, 1, 2},{ -3, 1, 2}, }, //level_add { 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 1, //inc_limit 18 //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 2, 0, 0}, { -2, 0, 0},{ 1, 2, 0},{ -1, 2, 0},{ 1, 3, 0},{ -1, 3, 0},{ 3, 0, 1}, { -3, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 1, 4, 0},{ -1, 4, 0},{ 1, 5, 0}, { -1, 5, 0},{ 1, 6, 0},{ -1, 6, 0},{ 2, 2, 0},{ -2, 2, 0},{ 4, 0, 2}, { -4, 0, 2},{ 1, 7, 0},{ -1, 7, 0},{ 3, 1, 1},{ -3, 1, 1},{ 2, 3, 0}, { -2, 3, 0},{ 1, 8, 0},{ -1, 8, 0},{ 1, 9, 0},{ -1, 9, 0},{ 5, 0, 2}, { -5, 0, 2},{ 2, 4, 0},{ -2, 4, 0},{ 1,10, 0},{ -1,10, 0},{ 2, 5, 0}, { -2, 5, 0},{ 1,11, 0},{ -1,11, 0},{ 3, 2, 1},{ -3, 2, 1},{ 6, 0, 2}, { -6, 0, 2},{ 4, 1, 2},{ -4, 1, 2},{ 1,12, 0},{ -1,12, 0},{ 2, 6, 0}, { -2, 6, 0},{ 3, 3, 1},{ -3, 3, 1},{ 1,13, 0},{ -1,13, 0}, }, //level_add { 7, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 2, //inc_limit 13 //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 1, 1, 0}, { -1, 1, 0},{ 3, 0, 0},{ -3, 0, 0},{ 1, 2, 0},{ -1, 2, 0},{ 2, 1, 0}, { -2, 1, 0},{ 4, 0, 1},{ -4, 0, 1},{ 1, 3, 0},{ -1, 3, 0},{ 5, 0, 1}, { -5, 0, 1},{ 1, 4, 0},{ -1, 4, 0},{ 3, 1, 0},{ -3, 1, 0},{ 2, 2, 0}, { -2, 2, 0},{ 1, 5, 0},{ -1, 5, 0},{ 6, 0, 1},{ -6, 0, 1},{ 2, 3, 0}, { -2, 3, 0},{ 1, 6, 0},{ -1, 6, 0},{ 4, 1, 1},{ -4, 1, 1},{ 7, 0, 2}, { -7, 0, 2},{ 3, 2, 0},{ -3, 2, 0},{ 1, 7, 0},{ -1, 7, 0},{ 2, 4, 0}, { -2, 4, 0},{ 8, 0, 2},{ -8, 0, 2},{ 1, 8, 0},{ -1, 8, 0},{ 3, 3, 0}, { -3, 3, 0},{ 2, 5, 0},{ -2, 5, 0},{ 5, 1, 1},{ -5, 1, 1},{ 1, 9, 0}, { -1, 9, 0},{ 9, 0, 2},{ -9, 0, 2},{ 4, 2, 1},{ -4, 2, 1}, }, //level_add {10, 6, 5, 4, 3, 3, 2, 2, 2, 2,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 3, //inc_limit 9 //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0}, { -3, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0}, { -5, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 1, 2, 0},{ -1, 2, 0},{ 6, 0, 0}, { -6, 0, 0},{ 3, 1, 0},{ -3, 1, 0},{ 7, 0, 1},{ -7, 0, 1},{ 1, 3, 0}, { -1, 3, 0},{ 8, 0, 1},{ -8, 0, 1},{ 2, 2, 0},{ -2, 2, 0},{ 4, 1, 0}, { -4, 1, 0},{ 1, 4, 0},{ -1, 4, 0},{ 9, 0, 1},{ -9, 0, 1},{ 5, 1, 0}, { -5, 1, 0},{ 2, 3, 0},{ -2, 3, 0},{ 1, 5, 0},{ -1, 5, 0},{ 10, 0, 2}, {-10, 0, 2},{ 3, 2, 0},{ -3, 2, 0},{ 11, 0, 2},{-11, 0, 2},{ 1, 6, 0}, { -1, 6, 0},{ 6, 1, 0},{ -6, 1, 0},{ 3, 3, 0},{ -3, 3, 0},{ 2, 4, 0}, { -2, 4, 0},{ 12, 0, 2},{-12, 0, 2},{ 4, 2, 0},{ -4, 2, 0}, }, //level_add {13, 7, 5, 4, 3, 2, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 6, //inc_limit 6 //max_run },{ { //level / run { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0}, { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 1, 1, 0}, { -1, 1, 0},{ 6, 0, 0},{ -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 0}, { -8, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 9, 0, 0},{ -9, 0, 0},{ 1, 2, 0}, { -1, 2, 0},{ 10, 0, 1},{-10, 0, 1},{ 3, 1, 0},{ -3, 1, 0},{ 11, 0, 1}, {-11, 0, 1},{ 4, 1, 0},{ -4, 1, 0},{ 12, 0, 1},{-12, 0, 1},{ 1, 3, 0}, { -1, 3, 0},{ 2, 2, 0},{ -2, 2, 0},{ 13, 0, 1},{-13, 0, 1},{ 5, 1, 0}, { -5, 1, 0},{ 14, 0, 1},{-14, 0, 1},{ 6, 1, 0},{ -6, 1, 0},{ 1, 4, 0}, { -1, 4, 0},{ 15, 0, 1},{-15, 0, 1},{ 3, 2, 0},{ -3, 2, 0},{ 16, 0, 1}, {-16, 0, 1},{ 2, 3, 0},{ -2, 3, 0},{ 7, 1, 0},{ -7, 1, 0}, }, //level_add {17, 8, 4, 3, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order 9, //inc_limit 4 //max_run },{ { //level / run { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0}, { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0}, { -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 8, 0, 0}, { -8, 0, 0},{ 9, 0, 0},{ -9, 0, 0},{ 10, 0, 0},{-10, 0, 0},{ 11, 0, 0}, {-11, 0, 0},{ 12, 0, 0},{-12, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 13, 0, 0}, {-13, 0, 0},{ 1, 2, 0},{ -1, 2, 0},{ 14, 0, 0},{-14, 0, 0},{ 15, 0, 0}, {-15, 0, 0},{ 3, 1, 0},{ -3, 1, 0},{ 16, 0, 0},{-16, 0, 0},{ 17, 0, 0}, {-17, 0, 0},{ 18, 0, 0},{-18, 0, 0},{ 4, 1, 0},{ -4, 1, 0},{ 19, 0, 0}, {-19, 0, 0},{ 20, 0, 0},{-20, 0, 0},{ 2, 2, 0},{ -2, 2, 0},{ 1, 3, 0}, { -1, 3, 0},{ 5, 1, 0},{ -5, 1, 0},{ 21, 0, 0},{-21, 0, 0}, }, //level_add {22, 6, 3, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 2, //golomb_order INT_MAX, //inc_limit 3 //max_run } }; static const residual_vlc_t chroma_2dvlc[5] = { { { //level / run { 1, 0, 1},{ -1, 0, 1},{ 1, 1, 1},{ -1, 1, 1},{ 1, 2, 1},{ -1, 2, 1}, { 1, 3, 1},{ -1, 3, 1},{ 1, 4, 1},{ -1, 4, 1},{ 1, 5, 1},{ -1, 5, 1}, { 1, 6, 1},{ -1, 6, 1},{ 2, 0, 2},{ -2, 0, 2},{ 1, 7, 1},{ -1, 7, 1}, { 1, 8, 1},{ -1, 8, 1},{ 1, 9, 1},{ -1, 9, 1},{ 1,10, 1},{ -1,10, 1}, { 1,11, 1},{ -1,11, 1},{ 1,12, 1},{ -1,12, 1},{ 1,13, 1},{ -1,13, 1}, { 1,14, 1},{ -1,14, 1},{ 3, 0, 3},{ -3, 0, 3},{ 1,15, 1},{ -1,15, 1}, { 1,16, 1},{ -1,16, 1},{ 1,17, 1},{ -1,17, 1},{ 1,18, 1},{ -1,18, 1}, { 1,19, 1},{ -1,19, 1},{ 1,20, 1},{ -1,20, 1},{ 1,21, 1},{ -1,21, 1}, { 2, 1, 2},{ -2, 1, 2},{ 1,22, 1},{ -1,22, 1},{ 1,23, 1},{ -1,23, 1}, { 1,24, 1},{ -1,24, 1},{ 4, 0, 3},{ -4, 0, 3},{ 0, 0,-1} }, //level_add { 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,-1}, 2, //golomb_order 0, //inc_limit 24, //max_run },{ { //level / run { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 2, 0, 1}, { -2, 0, 1},{ 1, 2, 0},{ -1, 2, 0},{ 1, 3, 0},{ -1, 3, 0},{ 1, 4, 0}, { -1, 4, 0},{ 1, 5, 0},{ -1, 5, 0},{ 3, 0, 2},{ -3, 0, 2},{ 1, 6, 0}, { -1, 6, 0},{ 1, 7, 0},{ -1, 7, 0},{ 2, 1, 1},{ -2, 1, 1},{ 1, 8, 0}, { -1, 8, 0},{ 1, 9, 0},{ -1, 9, 0},{ 1,10, 0},{ -1,10, 0},{ 4, 0, 2}, { -4, 0, 2},{ 1,11, 0},{ -1,11, 0},{ 1,12, 0},{ -1,12, 0},{ 1,13, 0}, { -1,13, 0},{ 2, 2, 1},{ -2, 2, 1},{ 1,14, 0},{ -1,14, 0},{ 2, 3, 1}, { -2, 3, 1},{ 5, 0, 3},{ -5, 0, 3},{ 3, 1, 2},{ -3, 1, 2},{ 1,15, 0}, { -1,15, 0},{ 1,16, 0},{ -1,16, 0},{ 1,17, 0},{ -1,17, 0},{ 2, 4, 1}, { -2, 4, 1},{ 1,18, 0},{ -1,18, 0},{ 1,19, 0},{ -1,19, 0}, }, //level_add { 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,-1,-1,-1,-1,-1,-1}, 0, //golomb_order 1, //inc_limit 19, //max_run },{ { //level / run { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 1, 1, 0}, { -1, 1, 0},{ 3, 0, 1},{ -3, 0, 1},{ 1, 2, 0},{ -1, 2, 0},{ 4, 0, 1}, { -4, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 1, 3, 0},{ -1, 3, 0},{ 5, 0, 2}, { -5, 0, 2},{ 1, 4, 0},{ -1, 4, 0},{ 3, 1, 1},{ -3, 1, 1},{ 2, 2, 0}, { -2, 2, 0},{ 1, 5, 0},{ -1, 5, 0},{ 6, 0, 2},{ -6, 0, 2},{ 1, 6, 0}, { -1, 6, 0},{ 2, 3, 0},{ -2, 3, 0},{ 7, 0, 2},{ -7, 0, 2},{ 1, 7, 0}, { -1, 7, 0},{ 4, 1, 1},{ -4, 1, 1},{ 1, 8, 0},{ -1, 8, 0},{ 3, 2, 1}, { -3, 2, 1},{ 2, 4, 0},{ -2, 4, 0},{ 2, 5, 0},{ -2, 5, 0},{ 8, 0, 2}, { -8, 0, 2},{ 1, 9, 0},{ -1, 9, 0},{ 1,10, 0},{ -1,10, 0},{ 9, 0, 2}, { -9, 0, 2},{ 5, 1, 2},{ -5, 1, 2},{ 3, 3, 1},{ -3, 3, 1}, }, //level_add {10, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 1, //golomb_order 2, //inc_limit 10, //max_run },{ { //level / run { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0}, { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 5, 0, 1}, { -5, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 6, 0, 1},{ -6, 0, 1},{ 1, 2, 0}, { -1, 2, 0},{ 7, 0, 1},{ -7, 0, 1},{ 3, 1, 0},{ -3, 1, 0},{ 8, 0, 1}, { -8, 0, 1},{ 1, 3, 0},{ -1, 3, 0},{ 2, 2, 0},{ -2, 2, 0},{ 9, 0, 1}, { -9, 0, 1},{ 4, 1, 0},{ -4, 1, 0},{ 1, 4, 0},{ -1, 4, 0},{ 10, 0, 1}, {-10, 0, 1},{ 3, 2, 0},{ -3, 2, 0},{ 5, 1, 1},{ -5, 1, 1},{ 2, 3, 0}, { -2, 3, 0},{ 11, 0, 1},{-11, 0, 1},{ 1, 5, 0},{ -1, 5, 0},{ 12, 0, 1}, {-12, 0, 1},{ 1, 6, 0},{ -1, 6, 0},{ 6, 1, 1},{ -6, 1, 1},{ 13, 0, 1}, {-13, 0, 1},{ 2, 4, 0},{ -2, 4, 0},{ 1, 7, 0},{ -1, 7, 0}, }, //level_add {14, 7, 4, 3, 3, 2, 2, 2,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 1, //golomb_order 4, //inc_limit 7, //max_run },{ { //level / run { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0}, { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0}, { -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 0},{ -8, 0, 0},{ 1, 1, 0}, { -1, 1, 0},{ 9, 0, 0},{ -9, 0, 0},{ 10, 0, 0},{-10, 0, 0},{ 11, 0, 0}, {-11, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 12, 0, 0},{-12, 0, 0},{ 13, 0, 0}, {-13, 0, 0},{ 3, 1, 0},{ -3, 1, 0},{ 14, 0, 0},{-14, 0, 0},{ 1, 2, 0}, { -1, 2, 0},{ 15, 0, 0},{-15, 0, 0},{ 4, 1, 0},{ -4, 1, 0},{ 16, 0, 0}, {-16, 0, 0},{ 17, 0, 0},{-17, 0, 0},{ 5, 1, 0},{ -5, 1, 0},{ 1, 3, 0}, { -1, 3, 0},{ 2, 2, 0},{ -2, 2, 0},{ 18, 0, 0},{-18, 0, 0},{ 6, 1, 0}, { -6, 1, 0},{ 19, 0, 0},{-19, 0, 0},{ 1, 4, 0},{ -1, 4, 0}, }, //level_add {20, 7, 3, 2, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,-1,-1,-1,-1,-1,-1,-1,-1}, 0, //golomb_order INT_MAX, //inc_limit 4, //max_run } }; static const uint8_t alpha_tab[64] = { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 28, 30, 33, 33, 35, 35, 36, 37, 37, 39, 39, 42, 44, 46, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 }; static const uint8_t beta_tab[64] = { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 27 }; static const uint8_t tc_tab[64] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9 }; static const int_fast8_t left_modifier_l[8] = { 0,-1, 6,-1,-1, 7, 6, 7}; static const int_fast8_t top_modifier_l[8] = {-1, 1, 5,-1,-1, 5, 7, 7}; static const int_fast8_t left_modifier_c[7] = { 5,-1, 2,-1, 6, 5, 6}; static const int_fast8_t top_modifier_c[7] = { 4, 1,-1,-1, 4, 6, 6};