--- trunk/xvidcore/src/quant/quant_matrix.c 2002/03/10 00:30:55 21 +++ branches/release-1_3-branch/xvidcore/src/quant/quant_matrix.c 2019/11/12 14:48:35 2180 @@ -1,141 +1,157 @@ -#include "quant_matrix.h" - -#define FIX(X) (1 << 16) / (X) + 1 - -uint8_t custom_intra_matrix = 0; -uint8_t custom_inter_matrix = 0; - -uint8_t default_intra_matrix[64] = { - 8,17,18,19,21,23,25,27, - 17,18,19,21,23,25,27,28, - 20,21,22,23,24,26,28,30, - 21,22,23,24,26,28,30,32, - 22,23,24,26,28,30,32,35, - 23,24,26,28,30,32,35,38, - 25,26,28,30,32,35,38,41, - 27,28,30,32,35,38,41,45 -}; - -int16_t intra_matrix[64] = { - 8,17,18,19,21,23,25,27, - 17,18,19,21,23,25,27,28, - 20,21,22,23,24,26,28,30, - 21,22,23,24,26,28,30,32, - 22,23,24,26,28,30,32,35, - 23,24,26,28,30,32,35,38, - 25,26,28,30,32,35,38,41, - 27,28,30,32,35,38,41,45 -}; - -int16_t intra_matrix_fix[64] = { - FIX(8),FIX(17),FIX(18),FIX(19),FIX(21),FIX(23),FIX(25),FIX(27), - FIX(17),FIX(18),FIX(19),FIX(21),FIX(23),FIX(25),FIX(27),FIX(28), - FIX(20),FIX(21),FIX(22),FIX(23),FIX(24),FIX(26),FIX(28),FIX(30), - FIX(21),FIX(22),FIX(23),FIX(24),FIX(26),FIX(28),FIX(30),FIX(32), - FIX(22),FIX(23),FIX(24),FIX(26),FIX(28),FIX(30),FIX(32),FIX(35), - FIX(23),FIX(24),FIX(26),FIX(28),FIX(30),FIX(32),FIX(35),FIX(38), - FIX(25),FIX(26),FIX(28),FIX(30),FIX(32),FIX(35),FIX(38),FIX(41), - FIX(27),FIX(28),FIX(30),FIX(32),FIX(35),FIX(38),FIX(41),FIX(45) -}; +/***************************************************************************** + * + * XVID MPEG-4 VIDEO CODEC + * - Quantization matrix management code - + * + * Copyright(C) 2002 Michael Militzer + * 2002 Peter Ross + * + * This program is free software ; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation ; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program ; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * $Id$ + * + ****************************************************************************/ -uint8_t default_inter_matrix[64] = { - 16,17,18,19,20,21,22,23, - 17,18,19,20,21,22,23,24, - 18,19,20,21,22,23,24,25, - 19,20,21,22,23,24,26,27, - 20,21,22,23,25,26,27,28, - 21,22,23,24,26,27,28,30, - 22,23,24,26,27,28,30,31, - 23,24,25,27,28,30,31,33 -}; +#include "../global.h" +#include "quant_matrix.h" -int16_t inter_matrix[64] = { - 16,17,18,19,20,21,22,23, - 17,18,19,20,21,22,23,24, - 18,19,20,21,22,23,24,25, - 19,20,21,22,23,24,26,27, - 20,21,22,23,25,26,27,28, - 21,22,23,24,26,27,28,30, - 22,23,24,26,27,28,30,31, - 23,24,25,27,28,30,31,33 -}; +#define FIX(X) (((X)==1) ? 0xFFFF : ((1UL << 16) / (X) + 1)) +#define FIXL(X) ((1UL << 16) / (X) - 1) -int16_t inter_matrix_fix[64] = { - FIX(16),FIX(17),FIX(18),FIX(19),FIX(20),FIX(21),FIX(22),FIX(23), - FIX(17),FIX(18),FIX(19),FIX(20),FIX(21),FIX(22),FIX(23),FIX(24), - FIX(18),FIX(19),FIX(20),FIX(21),FIX(22),FIX(23),FIX(24),FIX(25), - FIX(19),FIX(20),FIX(21),FIX(22),FIX(23),FIX(24),FIX(26),FIX(27), - FIX(20),FIX(21),FIX(22),FIX(23),FIX(25),FIX(26),FIX(27),FIX(28), - FIX(21),FIX(22),FIX(23),FIX(24),FIX(26),FIX(27),FIX(28),FIX(30), - FIX(22),FIX(23),FIX(24),FIX(26),FIX(27),FIX(28),FIX(30),FIX(31), - FIX(23),FIX(24),FIX(25),FIX(27),FIX(28),FIX(30),FIX(31),FIX(33) +/***************************************************************************** + * Default matrices + ****************************************************************************/ + +static const uint8_t default_intra_matrix[64] = { + 8, 17, 18, 19, 21, 23, 25, 27, + 17, 18, 19, 21, 23, 25, 27, 28, + 20, 21, 22, 23, 24, 26, 28, 30, + 21, 22, 23, 24, 26, 28, 30, 32, + 22, 23, 24, 26, 28, 30, 32, 35, + 23, 24, 26, 28, 30, 32, 35, 38, + 25, 26, 28, 30, 32, 35, 38, 41, + 27, 28, 30, 32, 35, 38, 41, 45 +}; + +static const uint8_t default_inter_matrix[64] = { + 16, 17, 18, 19, 20, 21, 22, 23, + 17, 18, 19, 20, 21, 22, 23, 24, + 18, 19, 20, 21, 22, 23, 24, 25, + 19, 20, 21, 22, 23, 24, 26, 27, + 20, 21, 22, 23, 25, 26, 27, 28, + 21, 22, 23, 24, 26, 27, 28, 30, + 22, 23, 24, 26, 27, 28, 30, 31, + 23, 24, 25, 27, 28, 30, 31, 33 }; -uint8_t get_intra_matrix_status(void) { - return custom_intra_matrix; +const uint16_t * +get_intra_matrix(const uint16_t * mpeg_quant_matrices) +{ + return(mpeg_quant_matrices + 0*64); } -uint8_t get_inter_matrix_status(void) { - return custom_inter_matrix; +const uint16_t * +get_inter_matrix(const uint16_t * mpeg_quant_matrices) +{ + return(mpeg_quant_matrices + 4*64); } -void set_intra_matrix_status(uint8_t status) { - custom_intra_matrix = status; +const uint8_t * +get_default_intra_matrix(void) +{ + return default_intra_matrix; } -void set_inter_matrix_status(uint8_t status) { - custom_inter_matrix = status; +const uint8_t * +get_default_inter_matrix(void) +{ + return default_inter_matrix; } -int16_t *get_intra_matrix(void) { - return intra_matrix; +int +is_custom_intra_matrix(const uint16_t * mpeg_quant_matrices) +{ + int i; + const uint16_t *intra_matrix = get_intra_matrix(mpeg_quant_matrices); + const uint8_t *def_intra_matrix = get_default_intra_matrix(); + + for (i = 0; i < 64; i++) { + if(intra_matrix[i] != def_intra_matrix[i]) + return 1; + } + return 0; } -int16_t *get_inter_matrix(void) { - return inter_matrix; +int +is_custom_inter_matrix(const uint16_t * mpeg_quant_matrices) +{ + int i; + const uint16_t *inter_matrix = get_inter_matrix(mpeg_quant_matrices); + const uint8_t *def_inter_matrix = get_default_inter_matrix(); + + for (i = 0; i < 64; i++) { + if(inter_matrix[i] != (uint16_t)def_inter_matrix[i]) + return 1; + } + return 0; } -uint8_t *get_default_intra_matrix(void) { - return default_intra_matrix; -} +void +set_intra_matrix(uint16_t * mpeg_quant_matrices, const uint8_t * matrix) +{ + int i; + uint16_t *intra_matrix = mpeg_quant_matrices + 0*64; -uint8_t *get_default_inter_matrix(void) { - return default_inter_matrix; + for (i = 0; i < 64; i++) { + intra_matrix[i] = (!i) ? (uint16_t)8: (uint16_t)MAX(1, matrix[i]); + } } -uint8_t set_intra_matrix(uint8_t *matrix) +void +init_intra_matrix(uint16_t * mpeg_quant_matrices, uint32_t quant) { - int i, change = 0; - - custom_intra_matrix = 0; - - for(i = 0; i < 64; i++) { - if((int16_t) default_intra_matrix[i] != matrix[i]) - custom_intra_matrix = 1; - if(intra_matrix[i] != matrix[i]) - change = 1; - - intra_matrix[i] = (int16_t) matrix[i]; - intra_matrix_fix[i] = FIX(intra_matrix[i]); + int i; + uint16_t *intra_matrix = mpeg_quant_matrices + 0*64; + uint16_t *intra_matrix_rec = mpeg_quant_matrices + 1*64; + + for (i = 0; i < 64; i++) { + uint32_t div = intra_matrix[i]*quant; + intra_matrix_rec[i] = ((uint32_t)((1<>1)))/div; } - return custom_intra_matrix | change; } - -uint8_t set_inter_matrix(uint8_t *matrix) +void +set_inter_matrix(uint16_t * mpeg_quant_matrices, const uint8_t * matrix) { - int i, change = 0; - - custom_inter_matrix = 0; + int i; + uint16_t *inter_matrix = mpeg_quant_matrices + 4*64; + uint16_t *inter_matrix1 = mpeg_quant_matrices + 5*64; + uint16_t *inter_matrix_fix = mpeg_quant_matrices + 6*64; + uint16_t *inter_matrix_fixl = mpeg_quant_matrices + 7*64; + + for (i = 0; i < 64; i++) { + inter_matrix1[i] = ((inter_matrix[i] = (int16_t)MAX(1, (matrix[i])>>1))); + inter_matrix1[i] += ((inter_matrix[i] == 1) ? 1: 0); + inter_matrix_fix[i] = (uint16_t) FIX(inter_matrix[i]); + inter_matrix_fixl[i] = (uint16_t) FIXL(inter_matrix[i]); + } +} - for(i = 0; i < 64; i++) { - if((int16_t) default_inter_matrix[i] != matrix[i]) - custom_inter_matrix = 1; - if(inter_matrix[i] != matrix[i]) - change = 1; +void +init_mpeg_matrix(uint16_t * mpeg_quant_matrices) { - inter_matrix[i] = (int16_t) matrix[i]; - inter_matrix_fix[i] = FIX(inter_matrix[i]); - } - return custom_inter_matrix | change; + set_intra_matrix(mpeg_quant_matrices, default_intra_matrix); + set_inter_matrix(mpeg_quant_matrices, default_inter_matrix); }