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/************************************************************************** |
#include "quant_matrix.h" |
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* |
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* XVID MPEG-4 VIDEO CODEC |
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* mpeg-4 quantization matrix stuff |
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* |
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* This program is an implementation of a part of one or more MPEG-4 |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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*************************************************************************/ |
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/************************************************************************** |
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* |
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* History: |
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* |
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* 2.3.2002 inital version <suxen_drol@hotmail.com> |
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* |
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*************************************************************************/ |
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#include "common.h" |
#define FIX(X) (1 << 16) / (X) + 1 |
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uint8_t custom_intra_matrix = 0; |
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uint8_t custom_inter_matrix = 0; |
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static const int16_t default_intra_matrix[64] = { |
uint8_t default_intra_matrix[64] = { |
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8,17,18,19,21,23,25,27, |
8,17,18,19,21,23,25,27, |
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17,18,19,21,23,25,27,28, |
17,18,19,21,23,25,27,28, |
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20,21,22,23,24,26,28,30, |
20,21,22,23,24,26,28,30, |
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27,28,30,32,35,38,41,45 |
27,28,30,32,35,38,41,45 |
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}; |
}; |
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static const int16_t default_inter_matrix[64] = { |
int16_t intra_matrix[64] = { |
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8, 17, 18, 19, 21, 23, 25, 27, |
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17, 18, 19, 21, 23, 25, 27, 28, |
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20, 21, 22, 23, 24, 26, 28, 30, |
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21, 22, 23, 24, 26, 28, 30, 32, |
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22, 23, 24, 26, 28, 30, 32, 35, |
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23, 24, 26, 28, 30, 32, 35, 38, |
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25, 26, 28, 30, 32, 35, 38, 41, |
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27, 28, 30, 32, 35, 38, 41, 45 |
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}; |
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int16_t intra_matrix_fix[64] = { |
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FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), |
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FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28), |
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FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), |
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FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), |
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FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), |
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FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), |
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FIX(25), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), |
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FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45) |
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}; |
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uint8_t default_inter_matrix[64] = { |
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16,17,18,19,20,21,22,23, |
16,17,18,19,20,21,22,23, |
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17,18,19,20,21,22,23,24, |
17,18,19,20,21,22,23,24, |
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18,19,20,21,22,23,24,25, |
18,19,20,21,22,23,24,25, |
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23,24,25,27,28,30,31,33 |
23,24,25,27,28,30,31,33 |
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}; |
}; |
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int16_t inter_matrix[64] = { |
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16, 17, 18, 19, 20, 21, 22, 23, |
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17, 18, 19, 20, 21, 22, 23, 24, |
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18, 19, 20, 21, 22, 23, 24, 25, |
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19, 20, 21, 22, 23, 24, 26, 27, |
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20, 21, 22, 23, 25, 26, 27, 28, |
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21, 22, 23, 24, 26, 27, 28, 30, |
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22, 23, 24, 26, 27, 28, 30, 31, |
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23, 24, 25, 27, 28, 30, 31, 33 |
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}; |
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int16_t inter_matrix_fix[64] = { |
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FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), |
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FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), |
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FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25), |
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FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), |
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FIX(20), FIX(21), FIX(22), FIX(23), FIX(25), FIX(26), FIX(27), FIX(28), |
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FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), |
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FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), FIX(31), |
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FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33) |
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}; |
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uint8_t |
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get_intra_matrix_status(void) |
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{ |
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return custom_intra_matrix; |
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} |
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uint8_t |
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get_inter_matrix_status(void) |
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{ |
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return custom_inter_matrix; |
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} |
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void quant4_intra_init(QMATRIX * qmatrix, int use_default) |
void |
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set_intra_matrix_status(uint8_t status) |
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{ |
{ |
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if (use_default) |
custom_intra_matrix = status; |
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} |
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void |
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set_inter_matrix_status(uint8_t status) |
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{ |
{ |
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memcpy(qmatrix->intra, default_intra_matrix, 64 * sizeof (int16_t)); |
custom_inter_matrix = status; |
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} |
} |
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#ifdef ARCH_X86 |
int16_t * |
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// TODO: generate mmx tables |
get_intra_matrix(void) |
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#endif |
{ |
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return intra_matrix; |
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} |
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int16_t * |
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get_inter_matrix(void) |
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{ |
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return inter_matrix; |
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} |
} |
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uint8_t * |
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get_default_intra_matrix(void) |
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{ |
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return default_intra_matrix; |
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} |
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void quant4_inter_init(QMATRIX * qmatrix, int use_default) |
uint8_t * |
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get_default_inter_matrix(void) |
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{ |
{ |
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if (use_default) |
return default_inter_matrix; |
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} |
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uint8_t |
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set_intra_matrix(uint8_t * matrix) |
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{ |
{ |
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memcpy(qmatrix->inter, default_inter_matrix, 64 * sizeof (int16_t)); |
int i, change = 0; |
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custom_intra_matrix = 0; |
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for (i = 0; i < 64; i++) { |
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if ((int16_t) default_intra_matrix[i] != matrix[i]) |
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custom_intra_matrix = 1; |
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if (intra_matrix[i] != matrix[i]) |
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change = 1; |
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intra_matrix[i] = (int16_t) matrix[i]; |
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intra_matrix_fix[i] = FIX(intra_matrix[i]); |
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} |
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return custom_intra_matrix | change; |
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} |
} |
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#ifdef ARCH_X86 |
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// TODO: generate mmx tables |
uint8_t |
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#endif |
set_inter_matrix(uint8_t * matrix) |
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{ |
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int i, change = 0; |
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custom_inter_matrix = 0; |
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for (i = 0; i < 64; i++) { |
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if ((int16_t) default_inter_matrix[i] != matrix[i]) |
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custom_inter_matrix = 1; |
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if (inter_matrix[i] != matrix[i]) |
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change = 1; |
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inter_matrix[i] = (int16_t) matrix[i]; |
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inter_matrix_fix[i] = FIX(inter_matrix[i]); |
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} |
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return custom_inter_matrix | change; |
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} |
} |
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