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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 1.7 2002-09-07 14:16:13 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] = { |
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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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] = { |
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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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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/***************************************************************************** |
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* Functions |
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****************************************************************************/ |
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uint8_t |
uint8_t |
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get_intra_matrix_status(void) |
get_intra_matrix_status(void) |
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{ |
{ |
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