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/************************************************************************** |
/***************************************************************************** |
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* |
* |
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* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
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* mpeg-4 quantization matrix stuff |
* - Custom matrix quantization functions - |
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* |
* |
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* This program is an implementation of a part of one or more MPEG-4 |
* Copyright(C) 2002 Michael Militzer <isibaar@xvid.org> |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
* 2002 Peter Ross <pross@xvid.org> |
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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 |
* This file is part of XviD, a free MPEG-4 video encoder/decoder |
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* it under the terms of the GNU General Public License as published by |
* |
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* XviD is free software; you can redistribute it and/or modify it |
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* 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 |
* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
* (at your option) any later version. |
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* |
* |
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* |
* |
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* You should have received a copy of the GNU General Public License |
* 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 |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
* |
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*************************************************************************/ |
* Under section 8 of the GNU General Public License, the copyright |
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* holders of XVID explicitly forbid distribution in the following |
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/************************************************************************** |
* countries: |
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* |
* |
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* History: |
* - Japan |
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* |
* - United States of America |
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* 2.3.2002 inital version <suxen_drol@hotmail.com> |
* |
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* Linking XviD statically or dynamically with other modules is making a |
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*************************************************************************/ |
* combined work based on XviD. Thus, the terms and conditions of the |
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* GNU General Public License cover the whole combination. |
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#include "common.h" |
* |
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* As a special exception, the copyright holders of XviD give you |
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* permission to link XviD with independent modules that communicate with |
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* XviD solely through the VFW1.1 and DShow interfaces, regardless of the |
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* license terms of these independent modules, and to copy and distribute |
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* the resulting combined work under terms of your choice, provided that |
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* every copy of the combined work is accompanied by a complete copy of |
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* the source code of XviD (the version of XviD used to produce the |
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* combined work), being distributed under the terms of the GNU General |
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* Public License plus this exception. An independent module is a module |
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* which is not derived from or based on XviD. |
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* |
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* Note that people who make modified versions of XviD are not obligated |
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* to grant this special exception for their modified versions; it is |
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* their choice whether to do so. The GNU General Public License gives |
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* permission to release a modified version without this exception; this |
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* exception also makes it possible to release a modified version which |
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* carries forward this exception. |
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* |
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* $Id: quant_matrix.c,v 1.12 2002-11-17 00:41:19 edgomez Exp $ |
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* |
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****************************************************************************/ |
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#include "quant_matrix.h" |
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#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; |
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uint8_t custom_inter_matrix = 0; |
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uint8_t default_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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static const int16_t default_intra_matrix[64] = { |
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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static const int16_t default_inter_matrix[64] = { |
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, |
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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[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] = { |
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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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/***************************************************************************** |
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* Functions |
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****************************************************************************/ |
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void quant4_intra_init(QMATRIX * qmatrix, int use_default) |
uint8_t |
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get_intra_matrix_status(void) |
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{ |
{ |
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if (use_default) |
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 |
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set_intra_matrix_status(uint8_t status) |
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{ |
{ |
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memcpy(qmatrix->intra, default_intra_matrix, 64 * sizeof (int16_t)); |
custom_intra_matrix = status; |
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} |
} |
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#ifdef ARCH_X86 |
void |
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// TODO: generate mmx tables |
set_inter_matrix_status(uint8_t status) |
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#endif |
{ |
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custom_inter_matrix = status; |
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} |
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int16_t * |
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get_intra_matrix(void) |
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{ |
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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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void quant4_inter_init(QMATRIX * qmatrix, int use_default) |
uint8_t * |
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get_default_intra_matrix(void) |
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{ |
{ |
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if (use_default) |
return default_intra_matrix; |
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} |
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uint8_t * |
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get_default_inter_matrix(void) |
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{ |
{ |
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memcpy(qmatrix->inter, default_inter_matrix, 64 * sizeof (int16_t)); |
return default_inter_matrix; |
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} |
} |
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#ifdef ARCH_X86 |
uint8_t |
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// TODO: generate mmx tables |
set_intra_matrix(uint8_t * matrix) |
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#endif |
{ |
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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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uint8_t |
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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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} |
} |