--- global.h 2003/04/04 22:13:35 1.21.2.3 +++ global.h 2003/06/09 13:50:57 1.21.2.6 @@ -1,3 +1,28 @@ +/***************************************************************************** + * + * XVID MPEG-4 VIDEO CODEC + * - Global definitions - + * + * Copyright(C) 2002 Michael Militzer + * + * 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 + * (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 + * + * $Id: global.h,v 1.21.2.6 2003/06/09 13:50:57 edgomez Exp $ + * + ****************************************************************************/ + #ifndef _GLOBAL_H_ #define _GLOBAL_H_ @@ -24,8 +49,10 @@ #define MODE_DIRECT_NO4V 5 -// vop coding types -// intra, prediction, backward, sprite, not_coded +/* + * vop coding types + * intra, prediction, backward, sprite, not_coded + */ #define I_VOP 0 #define P_VOP 1 #define B_VOP 2 @@ -71,9 +98,9 @@ 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 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; @@ -137,43 +164,45 @@ 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 + 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]; int mb_type; - // stuff for block based ME (needed for Qpel ME) - // backup of last integer ME vectors/sad + /* + * stuff for block based ME (needed for Qpel ME) + * backup of last integer ME vectors/sad + */ - VECTOR amv; // average motion vectors from GMC + VECTOR amv; /* average motion vectors from GMC */ int32_t mcsel; /* This structure has become way to big! What to do? Split it up? */ @@ -203,11 +232,11 @@ return 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 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))