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/***************************************************************************** |
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* |
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* XVID MPEG-4 VIDEO CODEC |
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* - Custom matrix quantization functions - |
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* |
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* Copyright(C) 2002 Michael Militzer |
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* $Id: quant_matrix.c,v 1.6 2002-09-07 11:14:41 edgomez Exp $ |
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* |
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****************************************************************************/ |
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#include "quant_matrix.h" |
#include "quant_matrix.h" |
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#define FIX(X) (1 << 16) / (X) + 1 |
#define FIX(X) (1 << 16) / (X) + 1 |
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/***************************************************************************** |
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* Local data |
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****************************************************************************/ |
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/* ToDo : remove all this local to make this module thread safe */ |
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uint8_t custom_intra_matrix = 0; |
uint8_t custom_intra_matrix = 0; |
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uint8_t custom_inter_matrix = 0; |
uint8_t custom_inter_matrix = 0; |
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uint8_t default_intra_matrix[64] = { |
static uint8_t const 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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int16_t intra_matrix[64] = { |
static int16_t 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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int16_t intra_matrix_fix[64] = { |
static 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), |
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), |
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), |
FIX(20),FIX(21),FIX(22),FIX(23),FIX(24),FIX(26),FIX(28),FIX(30), |
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FIX(27),FIX(28),FIX(30),FIX(32),FIX(35),FIX(38),FIX(41),FIX(45) |
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] = { |
static uint8_t const 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] = { |
static int16_t 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_fix[64] = { |
static 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), |
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), |
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), |
FIX(18),FIX(19),FIX(20),FIX(21),FIX(22),FIX(23),FIX(24),FIX(25), |
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FIX(23),FIX(24),FIX(25),FIX(27),FIX(28),FIX(30),FIX(31),FIX(33) |
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 get_intra_matrix_status(void) { |
/***************************************************************************** |
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* Functions |
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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; |
return custom_intra_matrix; |
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} |
} |
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uint8_t get_inter_matrix_status(void) { |
uint8_t |
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get_inter_matrix_status(void) |
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{ |
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return custom_inter_matrix; |
return custom_inter_matrix; |
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} |
} |
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void set_intra_matrix_status(uint8_t status) { |
void |
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set_intra_matrix_status(uint8_t status) |
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{ |
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custom_intra_matrix = status; |
custom_intra_matrix = status; |
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} |
} |
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void set_inter_matrix_status(uint8_t status) { |
void |
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set_inter_matrix_status(uint8_t status) |
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{ |
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custom_inter_matrix = status; |
custom_inter_matrix = status; |
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} |
} |
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int16_t *get_intra_matrix(void) { |
int16_t * |
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get_intra_matrix(void) |
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{ |
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return intra_matrix; |
return intra_matrix; |
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} |
} |
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uint8_t *get_default_intra_matrix(void) { |
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; |
return default_intra_matrix; |
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} |
} |
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uint8_t *get_default_inter_matrix(void) { |
uint8_t * |
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get_default_inter_matrix(void) |
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{ |
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return default_inter_matrix; |
return default_inter_matrix; |
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} |
} |
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uint8_t set_intra_matrix(uint8_t *matrix) |
uint8_t |
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set_intra_matrix(uint8_t * matrix) |
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{ |
{ |
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int i, change = 0; |
int i, change = 0; |
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} |
} |
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uint8_t set_inter_matrix(uint8_t *matrix) |
uint8_t |
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set_inter_matrix(uint8_t * matrix) |
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{ |
{ |
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int i, change = 0; |
int i, change = 0; |
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