--- quant_matrix.c 2002/10/19 12:20:33 1.11 +++ quant_matrix.c 2003/10/07 13:02:35 1.13.2.2 @@ -1,20 +1,11 @@ /***************************************************************************** * * XVID MPEG-4 VIDEO CODEC - * - Custom matrix quantization functions - + * - Quantization matrix management code - * * Copyright(C) 2002 Michael Militzer * 2002 Peter Ross * - * This program is an implementation of a part of one or more MPEG-4 - * Video tools as specified in ISO/IEC 14496-2 standard. Those intending - * to use this software module in hardware or software products are - * advised that its use may infringe existing patents or copyrights, and - * any such use would be at such party's own risk. The original - * developer of this software module and his/her company, and subsequent - * editors and their companies, will have no liability for use of this - * software or modifications or derivatives thereof. - * * This program 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 @@ -29,24 +20,24 @@ * along with this program ; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * - * $Id: quant_matrix.c,v 1.11 2002/10/19 12:20:33 edgomez Exp $ + * $Id: quant_matrix.c,v 1.13.2.2 2003/10/07 13:02:35 edgomez Exp $ * ****************************************************************************/ #include "quant_matrix.h" -#define FIX(X) (1 << 16) / (X) + 1 +#define FIX(X) (((X)==1) ? 0xFFFF : ((1UL << 16) / (X) + 1)) +#define FIXL(X) ((1UL << 16) / (X) - 1) + +static uint8_t custom_intra_matrix = 0; +static uint8_t custom_inter_matrix = 0; /***************************************************************************** - * Local data + * Default matrices ****************************************************************************/ -/* ToDo : remove all this local to make this module thread safe */ -uint8_t custom_intra_matrix = 0; -uint8_t custom_inter_matrix = 0; - -uint8_t default_intra_matrix[64] = { - 8, 17, 18, 19, 21, 23, 25, 27, +static const uint8_t default_intra_matrix[64] = { + 8, 17, 18, 19, 21, 23, 25, 27, 17, 18, 19, 21, 23, 25, 27, 28, 20, 21, 22, 23, 24, 26, 28, 30, 21, 22, 23, 24, 26, 28, 30, 32, @@ -56,8 +47,19 @@ 27, 28, 30, 32, 35, 38, 41, 45 }; +static const uint8_t default_inter_matrix[64] = { + 16, 17, 18, 19, 20, 21, 22, 23, + 17, 18, 19, 20, 21, 22, 23, 24, + 18, 19, 20, 21, 22, 23, 24, 25, + 19, 20, 21, 22, 23, 24, 26, 27, + 20, 21, 22, 23, 25, 26, 27, 28, + 21, 22, 23, 24, 26, 27, 28, 30, + 22, 23, 24, 26, 27, 28, 30, 31, + 23, 24, 25, 27, 28, 30, 31, 33 +}; + int16_t intra_matrix[64] = { - 8, 17, 18, 19, 21, 23, 25, 27, + 8, 17, 18, 19, 21, 23, 25, 27, 17, 18, 19, 21, 23, 25, 27, 28, 20, 21, 22, 23, 24, 26, 28, 30, 21, 22, 23, 24, 26, 28, 30, 32, @@ -67,7 +69,41 @@ 27, 28, 30, 32, 35, 38, 41, 45 }; -int16_t intra_matrix_fix[64] = { +uint16_t intra_matrix_fixfix[64] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0 +}; + +uint16_t inter_matrix_fixfix[64] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0 +}; + +uint16_t intra_matrix1[64] = { + 8>>1, 17>>1, 18>>1, 19>>1, 21>>1, 23>>1, 25>>1, 27>>1, + 17>>1, 18>>1, 19>>1, 21>>1, 23>>1, 25>>1, 27>>1, 28>>1, + 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, + 21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1, + 22>>1, 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1, + 23>>1, 24>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1, + 25>>1, 26>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1, 41>>1, + 27>>1, 28>>1, 30>>1, 32>>1, 35>>1, 38>>1, 41>>1, 45>>1 +}; + + +uint16_t intra_matrix_fix[64] = { FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), @@ -78,15 +114,26 @@ FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45) }; -uint8_t default_inter_matrix[64] = { - 16, 17, 18, 19, 20, 21, 22, 23, - 17, 18, 19, 20, 21, 22, 23, 24, - 18, 19, 20, 21, 22, 23, 24, 25, - 19, 20, 21, 22, 23, 24, 26, 27, - 20, 21, 22, 23, 25, 26, 27, 28, - 21, 22, 23, 24, 26, 27, 28, 30, - 22, 23, 24, 26, 27, 28, 30, 31, - 23, 24, 25, 27, 28, 30, 31, 33 +uint16_t intra_matrix_fixl[64] = { + FIXL(8), FIXL(17), FIXL(18), FIXL(19), FIXL(21), FIXL(23), FIXL(25), FIXL(27), + FIXL(17), FIXL(18), FIXL(19), FIXL(21), FIXL(23), FIXL(25), FIXL(27), FIXL(28), + FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), + FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32), + FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35), + FIXL(23), FIXL(24), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38), + FIXL(25), FIXL(26), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38), FIXL(41), + FIXL(27), FIXL(28), FIXL(30), FIXL(32), FIXL(35), FIXL(38), FIXL(41), FIXL(45) +}; + +uint16_t inter_matrix_fixl[64] = { + FIXL(16), FIXL(17), FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), + FIXL(17), FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), + FIXL(18), FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(25), + FIXL(19), FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27), + FIXL(20), FIXL(21), FIXL(22), FIXL(23), FIXL(25), FIXL(26), FIXL(27), FIXL(28), + FIXL(21), FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27), FIXL(28), FIXL(30), + FIXL(22), FIXL(23), FIXL(24), FIXL(26), FIXL(27), FIXL(28), FIXL(30), FIXL(31), + FIXL(23), FIXL(24), FIXL(25), FIXL(27), FIXL(28), FIXL(30), FIXL(31), FIXL(33) }; int16_t inter_matrix[64] = { @@ -100,7 +147,18 @@ 23, 24, 25, 27, 28, 30, 31, 33 }; -int16_t inter_matrix_fix[64] = { +uint16_t inter_matrix1[64] = { + 16>>1, 17>>1, 18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, + 17>>1, 18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, + 18>>1, 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 25>>1, + 19>>1, 20>>1, 21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 27>>1, + 20>>1, 21>>1, 22>>1, 23>>1, 25>>1, 26>>1, 27>>1, 28>>1, + 21>>1, 22>>1, 23>>1, 24>>1, 26>>1, 27>>1, 28>>1, 30>>1, + 22>>1, 23>>1, 24>>1, 26>>1, 27>>1, 28>>1, 30>>1, 31>>1, + 23>>1, 24>>1, 25>>1, 27>>1, 28>>1, 30>>1, 31>>1, 33>>1 +}; + +uint16_t inter_matrix_fix[64] = { FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25), @@ -111,10 +169,6 @@ FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33) }; -/***************************************************************************** - * Functions - ****************************************************************************/ - uint8_t get_intra_matrix_status(void) { @@ -139,32 +193,32 @@ custom_inter_matrix = status; } -int16_t * +const int16_t * get_intra_matrix(void) { return intra_matrix; } -int16_t * +const int16_t * get_inter_matrix(void) { return inter_matrix; } -uint8_t * +const uint8_t * get_default_intra_matrix(void) { return default_intra_matrix; } -uint8_t * +const uint8_t * get_default_inter_matrix(void) { return default_inter_matrix; } uint8_t -set_intra_matrix(uint8_t * matrix) +set_intra_matrix(const uint8_t * matrix) { int i, change = 0; @@ -176,15 +230,17 @@ if (intra_matrix[i] != matrix[i]) change = 1; - intra_matrix[i] = (int16_t) matrix[i]; + intra_matrix1[i] = ((intra_matrix[i] = (int16_t) matrix[i])>>1); + intra_matrix1[i] += ((intra_matrix[i] == 1) ? 1: 0); intra_matrix_fix[i] = FIX(intra_matrix[i]); + intra_matrix_fixl[i] = FIXL(intra_matrix[i]); } - return /*custom_intra_matrix |*/ change; + return custom_intra_matrix | change; } uint8_t -set_inter_matrix(uint8_t * matrix) +set_inter_matrix(const uint8_t * matrix) { int i, change = 0; @@ -196,8 +252,10 @@ if (inter_matrix[i] != matrix[i]) change = 1; - inter_matrix[i] = (int16_t) matrix[i]; + inter_matrix1[i] = ((inter_matrix[i] = (int16_t) matrix[i])>>1); + inter_matrix1[i] += ((inter_matrix[i] == 1) ? 1: 0); inter_matrix_fix[i] = FIX(inter_matrix[i]); + inter_matrix_fixl[i] = FIXL(inter_matrix[i]); } - return /*custom_inter_matrix |*/ change; + return custom_inter_matrix | change; }