--- global.h 2003/02/09 06:33:51 1.13.2.10 +++ global.h 2003/04/04 22:12:07 1.18.2.1 @@ -1,3 +1,59 @@ +/***************************************************************************** + * + * XVID MPEG-4 VIDEO CODEC + * - Global structures, constants - + * + * Copyright(C) 2002 Michael Militzer + * + * 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: global.h,v 1.18.2.1 2003/04/04 22:12:07 edgomez Exp $ + * + ****************************************************************************/ + #ifndef _GLOBAL_H_ #define _GLOBAL_H_ @@ -11,8 +67,8 @@ #define MODE_INTER4V 2 #define MODE_INTRA 3 #define MODE_INTRA_Q 4 +#define MODE_STUFFING 7 #define MODE_NOT_CODED 16 -#define MODE_NOT_CODED_GMC 17 /* --- bframe specific --- */ @@ -21,68 +77,6 @@ #define MODE_BACKWARD 2 #define MODE_FORWARD 3 #define MODE_DIRECT_NONE_MV 4 -#define MODE_DIRECT_NO4V 5 - -typedef struct -{ - VECTOR duv[3]; -} -WARPPOINTS; - -/* save all warping parameters for GMC once and for all, instead of - recalculating for every block. This is needed for encoding&decoding - When switching to incremental calculations, this will get much shorter -*/ - -/* we don't include WARPPOINTS wp here, but in FRAMEINFO itself */ - -typedef struct -{ - int num_wp; // [input]: 0=none, 1=translation, 2,3 = warping - // a value of -1 means: "structure not initialized!" - int s; // [input]: calc is done with 1/s pel resolution - - int W; - int H; - - int ss; - int smask; - int sigma; - - int r; - int rho; - - int i0s; - int j0s; - int i1s; - int j1s; - int i2s; - int j2s; - - int i1ss; - int j1ss; - int i2ss; - int j2ss; - - int alpha; - int beta; - int Ws; - int Hs; - - int dxF, dyF, dxG, dyG; - int Fo, Go; - int cFo, cGo; -} -GMC_DATA; - - -typedef struct -{ - uint8_t *y; - uint8_t *u; - uint8_t *v; -} -IMAGE; typedef struct @@ -94,6 +88,7 @@ uint32_t *tail; uint32_t *start; uint32_t length; + uint32_t initpos; } Bitstream; @@ -103,64 +98,57 @@ typedef struct { - // decoder/encoder + /* decoder/encoder */ VECTOR mvs[4]; short int pred_values[6][MBPRED_SIZE]; int acpred_directions[6]; int mode; - int quant; // absolute quant + int quant; /* absolute quant */ int field_dct; int field_pred; int field_for_top; int field_for_bot; - // encoder specific + /* encoder specific */ VECTOR mv16; VECTOR pmvs[4]; - VECTOR qmvs[4]; // mvs in quarter pixel resolution - int32_t sad8[4]; // SAD values for inter4v-VECTORs - int32_t sad16; // SAD value for inter-VECTOR + int32_t sad8[4]; /* SAD values for inter4v-VECTORs */ + int32_t sad16; /* SAD value for inter-VECTOR */ int dquant; int cbp; - // bframe stuff + /* bframe stuff */ VECTOR b_mvs[4]; - VECTOR b_qmvs[4]; -// VECTOR b_pmvs[1]; + VECTOR b_pmvs[4]; - // bframe direct mode + /* bframe direct mode */ -// VECTOR directmv[4]; -// VECTOR deltamv; + VECTOR directmv[4]; + VECTOR deltamv; int mb_type; int dbquant; - // stuff for block based ME (needed for Qpel ME) - // backup of last integer ME vectors/sad - -// VECTOR i_mv16; + /* stuff for block based ME (needed for Qpel ME) */ + /* backup of last integer ME vectors/sad */ + + VECTOR i_mv16; VECTOR i_mvs[4]; - int32_t i_sad8[4]; // SAD values for inter4v-VECTORs -// int32_t i_sad16; // SAD value for inter-VECTOR - - VECTOR amv; // average motion vectors from GMC - int32_t mcsel; - -/* This structure has become way to big! What to do? Split it up? */ + int32_t i_sad8[4]; /* SAD values for inter4v-VECTORs */ + int32_t i_sad16; /* SAD value for inter-VECTOR */ } MACROBLOCK; -static __inline uint32_t +static __inline int8_t get_dc_scaler(uint32_t quant, uint32_t lum) { @@ -168,28 +156,26 @@ return 8; if (quant < 25 && !lum) - return (quant + 13) / 2; + return (int8_t)((quant + 13) / 2); if (quant < 9) - return 2 * quant; + return (int8_t)(2 * quant); if (quant < 25) - return quant + 8; + return (int8_t)(quant + 8); if (lum) - return 2 * quant - 16; + return (int8_t)(2 * quant - 16); else - return quant - 6; + return (int8_t)(quant - 6); } -// useful macros +/* useful macros */ #define MIN(X, Y) ((X)<(Y)?(X):(Y)) #define MAX(X, Y) ((X)>(Y)?(X):(Y)) #define ABS(X) (((X)>0)?(X):-(X)) #define SIGN(X) (((X)>0)?1:-1) -#define CLIP(X,AMIN,AMAX) (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X)) -#define DIV_DIV(a,b) (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b)) -#endif /* _GLOBAL_H_ */ +#endif /* _GLOBAL_H_ */