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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 <isibaar@xvid.org> |
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* 2002 Peter Ross <pross@xvid.org> |
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* |
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* This file is part of XviD, a free MPEG-4 video encoder/decoder |
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* |
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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 |
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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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* 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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* - Japan |
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* - United States of America |
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* |
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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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* |
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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" |
#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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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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intra_matrix[i] = (int16_t) matrix[i]; |
intra_matrix[i] = (int16_t) matrix[i]; |
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intra_matrix_fix[i] = FIX(intra_matrix[i]); |
intra_matrix_fix[i] = FIX(intra_matrix[i]); |
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} |
} |
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return custom_intra_matrix | change; |
return /*custom_intra_matrix |*/ change; |
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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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inter_matrix[i] = (int16_t) matrix[i]; |
inter_matrix[i] = (int16_t) matrix[i]; |
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inter_matrix_fix[i] = FIX(inter_matrix[i]); |
inter_matrix_fix[i] = FIX(inter_matrix[i]); |
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} |
} |
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return custom_inter_matrix | change; |
return /*custom_inter_matrix |*/ change; |
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} |
} |