--- trunk/xvidcore/src/quant/quant_matrix.c 2002/06/12 20:38:41 195 +++ trunk/xvidcore/src/quant/quant_matrix.c 2002/11/17 00:41:20 653 @@ -1,7 +1,69 @@ +/***************************************************************************** + * + * XVID MPEG-4 VIDEO CODEC + * - Custom matrix quantization functions - + * + * Copyright(C) 2002 Michael Militzer + * 2002 Peter Ross + * + * This file is part of XviD, a free MPEG-4 video encoder/decoder + * + * XviD is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Under section 8 of the GNU General Public License, the copyright + * holders of XVID explicitly forbid distribution in the following + * countries: + * + * - Japan + * - United States of America + * + * Linking XviD statically or dynamically with other modules is making a + * combined work based on XviD. Thus, the terms and conditions of the + * GNU General Public License cover the whole combination. + * + * As a special exception, the copyright holders of XviD give you + * permission to link XviD with independent modules that communicate with + * XviD solely through the VFW1.1 and DShow interfaces, regardless of the + * license terms of these independent modules, and to copy and distribute + * the resulting combined work under terms of your choice, provided that + * every copy of the combined work is accompanied by a complete copy of + * the source code of XviD (the version of XviD used to produce the + * combined work), being distributed under the terms of the GNU General + * Public License plus this exception. An independent module is a module + * which is not derived from or based on XviD. + * + * Note that people who make modified versions of XviD are not obligated + * to grant this special exception for their modified versions; it is + * their choice whether to do so. The GNU General Public License gives + * permission to release a modified version without this exception; this + * exception also makes it possible to release a modified version which + * carries forward this exception. + * + * $Id: quant_matrix.c,v 1.12 2002-11-17 00:41:19 edgomez Exp $ + * + ****************************************************************************/ + #include "quant_matrix.h" #define FIX(X) (1 << 16) / (X) + 1 +/***************************************************************************** + * Local data + ****************************************************************************/ + +/* ToDo : remove all this local to make this module thread safe */ uint8_t custom_intra_matrix = 0; uint8_t custom_inter_matrix = 0; @@ -71,6 +133,10 @@ FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33) }; +/***************************************************************************** + * Functions + ****************************************************************************/ + uint8_t get_intra_matrix_status(void) { @@ -135,7 +201,7 @@ intra_matrix[i] = (int16_t) matrix[i]; intra_matrix_fix[i] = FIX(intra_matrix[i]); } - return custom_intra_matrix | change; + return /*custom_intra_matrix |*/ change; } @@ -155,5 +221,5 @@ inter_matrix[i] = (int16_t) matrix[i]; inter_matrix_fix[i] = FIX(inter_matrix[i]); } - return custom_inter_matrix | change; + return /*custom_inter_matrix |*/ change; }