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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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* - Quantization matrix management code - |
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* |
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* Copyright(C) 2002 Michael Militzer <isibaar@xvid.org> |
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* 2002 Peter Ross <pross@xvid.org> |
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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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* $Id$ |
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* |
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****************************************************************************/ |
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#define FIX(X) (1 << 16) / (X) + 1 |
#include "quant_matrix.h" |
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uint8_t custom_intra_matrix = 0; |
#define FIX(X) (((X)==1) ? 0xFFFF : ((1UL << 16) / (X) + 1)) |
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uint8_t custom_inter_matrix = 0; |
#define FIXL(X) ((1UL << 16) / (X) - 1) |
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uint8_t default_intra_matrix[64] = { |
/***************************************************************************** |
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8,17,18,19,21,23,25,27, |
* Default matrices |
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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[64] = { |
static const 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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int16_t intra_matrix_fix[64] = { |
static const uint8_t default_inter_matrix[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] = { |
const uint16_t * |
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16,17,18,19,20,21,22,23, |
get_intra_matrix(const uint16_t * mpeg_quant_matrices) |
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17,18,19,20,21,22,23,24, |
{ |
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18,19,20,21,22,23,24,25, |
return(mpeg_quant_matrices + 0*64); |
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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 get_intra_matrix_status(void) { |
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return custom_intra_matrix; |
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} |
} |
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uint8_t get_inter_matrix_status(void) { |
const uint16_t * |
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return custom_inter_matrix; |
get_inter_matrix(const uint16_t * mpeg_quant_matrices) |
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{ |
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return(mpeg_quant_matrices + 4*64); |
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} |
} |
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void set_intra_matrix_status(uint8_t status) { |
const uint8_t * |
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custom_intra_matrix = status; |
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 set_inter_matrix_status(uint8_t status) { |
const uint8_t * |
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custom_inter_matrix = status; |
get_default_inter_matrix(void) |
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{ |
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return default_inter_matrix; |
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} |
} |
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int16_t *get_intra_matrix(void) { |
int |
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return intra_matrix; |
is_custom_intra_matrix(const uint16_t * mpeg_quant_matrices) |
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} |
{ |
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int i; |
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const uint16_t *intra_matrix = get_intra_matrix(mpeg_quant_matrices); |
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const uint8_t *def_intra_matrix = get_default_intra_matrix(); |
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int16_t *get_inter_matrix(void) { |
for (i = 0; i < 64; i++) { |
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return inter_matrix; |
if(intra_matrix[i] != def_intra_matrix[i]) |
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return 1; |
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} |
} |
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return 0; |
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uint8_t *get_default_intra_matrix(void) { |
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return default_intra_matrix; |
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} |
} |
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uint8_t *get_default_inter_matrix(void) { |
int |
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return default_inter_matrix; |
is_custom_inter_matrix(const uint16_t * mpeg_quant_matrices) |
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{ |
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int i; |
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const uint16_t *inter_matrix = get_inter_matrix(mpeg_quant_matrices); |
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const uint8_t *def_inter_matrix = get_default_inter_matrix(); |
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for (i = 0; i < 64; i++) { |
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if(inter_matrix[i] != (uint16_t)def_inter_matrix[i]) |
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return 1; |
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} |
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return 0; |
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} |
} |
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uint8_t set_intra_matrix(uint8_t *matrix) |
void |
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set_intra_matrix(uint16_t * mpeg_quant_matrices, const uint8_t * matrix) |
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{ |
{ |
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int i, change = 0; |
int i; |
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uint16_t *intra_matrix = mpeg_quant_matrices + 0*64; |
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custom_intra_matrix = 0; |
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for(i = 0; i < 64; i++) { |
for(i = 0; i < 64; i++) { |
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if((int16_t) default_intra_matrix[i] != matrix[i]) |
intra_matrix[i] = (!i) ? (uint16_t)8: (uint16_t)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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void |
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uint8_t set_inter_matrix(uint8_t *matrix) |
init_intra_matrix(uint16_t * mpeg_quant_matrices, uint32_t quant) |
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{ |
{ |
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int i, change = 0; |
int i; |
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uint16_t *intra_matrix = mpeg_quant_matrices + 0*64; |
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custom_inter_matrix = 0; |
uint16_t *intra_matrix_rec = mpeg_quant_matrices + 1*64; |
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for(i = 0; i < 64; i++) { |
for(i = 0; i < 64; i++) { |
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if((int16_t) default_inter_matrix[i] != matrix[i]) |
uint32_t div = intra_matrix[i]*quant; |
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custom_inter_matrix = 1; |
intra_matrix_rec[i] = ((uint32_t)((1<<SCALEBITS) + (div>>1)))/div; |
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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]; |
void |
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inter_matrix_fix[i] = FIX(inter_matrix[i]); |
set_inter_matrix(uint16_t * mpeg_quant_matrices, const uint8_t * matrix) |
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{ |
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int i; |
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uint16_t *inter_matrix = mpeg_quant_matrices + 4*64; |
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uint16_t *inter_matrix1 = mpeg_quant_matrices + 5*64; |
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uint16_t *inter_matrix_fix = mpeg_quant_matrices + 6*64; |
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uint16_t *inter_matrix_fixl = mpeg_quant_matrices + 7*64; |
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for (i = 0; i < 64; i++) { |
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inter_matrix1[i] = ((inter_matrix[i] = (int16_t) matrix[i])>>1); |
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inter_matrix1[i] += ((inter_matrix[i] == 1) ? 1: 0); |
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inter_matrix_fix[i] = (uint16_t) FIX(inter_matrix[i]); |
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inter_matrix_fixl[i] = (uint16_t) FIXL(inter_matrix[i]); |
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} |
} |
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return custom_inter_matrix | change; |
} |
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void |
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init_mpeg_matrix(uint16_t * mpeg_quant_matrices) { |
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set_intra_matrix(mpeg_quant_matrices, default_intra_matrix); |
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set_inter_matrix(mpeg_quant_matrices, default_inter_matrix); |
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} |
} |