--- quant_matrix.c 2002/03/08 02:44:55 1.1 +++ quant_matrix.c 2002/03/10 00:30:55 1.4 @@ -1,45 +1,11 @@ -/************************************************************************** - * - * XVID MPEG-4 VIDEO CODEC - * mpeg-4 quantization matrix stuff - * - * This program is an implementation of a part of one or more MPEG-4 - * Video tools as specified in ISO/IEC 14496-2 standard. Those intending - * to use this software module in hardware or software products are - * advised that its use may infringe existing patents or copyrights, and - * any such use would be at such party's own risk. The original - * developer of this software module and his/her company, and subsequent - * editors and their companies, will have no liability for use of this - * software or modifications or derivatives thereof. - * - * 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * - *************************************************************************/ - -/************************************************************************** - * - * History: - * - * 2.3.2002 inital version - * - *************************************************************************/ +#include "quant_matrix.h" -#include "common.h" +#define FIX(X) (1 << 16) / (X) + 1 +uint8_t custom_intra_matrix = 0; +uint8_t custom_inter_matrix = 0; -static const int16_t default_intra_matrix[64] = { +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, @@ -50,7 +16,40 @@ 27,28,30,32,35,38,41,45 }; -static const int16_t default_inter_matrix[64] = { +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) +}; + +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 +}; + +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, @@ -61,29 +60,82 @@ 23,24,25,27,28,30,31,33 }; +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) +}; -void quant4_intra_init(QMATRIX * qmatrix, int use_default) -{ - if (use_default) - { - memcpy(qmatrix->intra, default_intra_matrix, 64 * sizeof (int16_t)); - } +uint8_t get_intra_matrix_status(void) { + return custom_intra_matrix; +} -#ifdef ARCH_X86 - // TODO: generate mmx tables -#endif +uint8_t get_inter_matrix_status(void) { + return custom_inter_matrix; +} +void set_intra_matrix_status(uint8_t status) { + custom_intra_matrix = status; } +void set_inter_matrix_status(uint8_t status) { + custom_inter_matrix = status; +} + +int16_t *get_intra_matrix(void) { + return intra_matrix; +} + +int16_t *get_inter_matrix(void) { + return inter_matrix; +} -void quant4_inter_init(QMATRIX * qmatrix, int use_default) +uint8_t *get_default_intra_matrix(void) { + return default_intra_matrix; +} + +uint8_t *get_default_inter_matrix(void) { + return default_inter_matrix; +} + +uint8_t set_intra_matrix(uint8_t *matrix) { - if (use_default) - { - memcpy(qmatrix->inter, default_inter_matrix, 64 * sizeof (int16_t)); + 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]); } + return custom_intra_matrix | change; +} + -#ifdef ARCH_X86 - // TODO: generate mmx tables -#endif +uint8_t set_inter_matrix(uint8_t *matrix) +{ + int i, change = 0; + + custom_inter_matrix = 0; + + 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; + + inter_matrix[i] = (int16_t) matrix[i]; + inter_matrix_fix[i] = FIX(inter_matrix[i]); + } + return custom_inter_matrix | change; }