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/*****************************************************************************
*
* XVID MPEG-4 VIDEO CODEC
* - Global definitions -
*
* Copyright(C) 2002-2010 Michael Militzer <michael@xvid.org>
*
* 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 2057 2011-12-30 13:04:28Z Isibaar $
*
****************************************************************************/
#ifndef _GLOBAL_H_
#define _GLOBAL_H_
#include "xvid.h"
#include "portab.h"
/* --- macroblock modes --- */
#define MODE_INTER 0
#define MODE_INTER_Q 1
#define MODE_INTER4V 2
#define MODE_INTRA 3
#define MODE_INTRA_Q 4
#define MODE_NOT_CODED 16
#define MODE_NOT_CODED_GMC 17
/* --- bframe specific --- */
#define MODE_DIRECT 0
#define MODE_INTERPOLATE 1
#define MODE_BACKWARD 2
#define MODE_FORWARD 3
#define MODE_DIRECT_NONE_MV 4
#define MODE_DIRECT_NO4V 5
/*
* vop coding types
* intra, prediction, backward, sprite, not_coded
*/
#define I_VOP 0
#define P_VOP 1
#define B_VOP 2
#define S_VOP 3
#define N_VOP 4
/* convert mpeg-4 coding type i/p/b/s_VOP to XVID_TYPE_xxx */
static __inline int
coding2type(int coding_type)
{
return coding_type + 1;
}
/* convert XVID_TYPE_xxx to bitstream coding type i/p/b/s_VOP */
static __inline int
type2coding(int xvid_type)
{
return xvid_type - 1;
}
typedef struct
{
int x;
int y;
}
VECTOR;
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 _NEW_GMC_DATA
{
/* 0=none, 1=translation, 2,3 = warping
* a value of -1 means: "structure not initialized!" */
int num_wp;
/* {0,1,2,3} => {1/2,1/4,1/8,1/16} pel */
int accuracy;
/* sprite size * 16 */
int sW, sH;
/* gradient, calculated from warp points */
int dU[2], dV[2], Uo, Vo, Uco, Vco;
void (*predict_16x16)(const struct _NEW_GMC_DATA * const This,
uint8_t *dst, const uint8_t *src,
int dststride, int srcstride, int x, int y, int rounding);
void (*predict_8x8) (const struct _NEW_GMC_DATA * const This,
uint8_t *uDst, const uint8_t *uSrc,
uint8_t *vDst, const uint8_t *vSrc,
int dststride, int srcstride, int x, int y, int rounding);
void (*get_average_mv)(const struct _NEW_GMC_DATA * const Dsp, VECTOR * const mv,
int x, int y, int qpel);
} NEW_GMC_DATA;
typedef struct
{
uint8_t *y;
uint8_t *u;
uint8_t *v;
}
IMAGE;
typedef struct
{
uint32_t bufa;
uint32_t bufb;
uint32_t buf;
uint32_t pos;
uint32_t *tail;
uint32_t *start;
uint32_t length;
uint32_t initpos;
}
Bitstream;
#define MBPRED_SIZE 15
typedef struct
{
/* decoder/encoder */
VECTOR mvs[4];
short int pred_values[6][MBPRED_SIZE];
int acpred_directions[6];
int mode;
int quant; /* absolute quant */
int field_dct;
int field_pred;
int field_for_top;
int field_for_bot;
/* encoder specific */
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 var16; /* Variance of the 16x16 luma block */
int32_t rel_var8[6]; /* Relative variances of the 8x8 sub-blocks */
int dquant;
int cbp;
/* lambda for these blocks */
int lambda[6];
/* bframe stuff */
VECTOR b_mvs[4];
VECTOR b_qmvs[4];
VECTOR amv; /* average motion vectors from GMC */
int32_t mcsel;
VECTOR mvs_avg; //CK average of field motion vectors
/* This structure has become way to big! What to do? Split it up? */
}
MACROBLOCK;
static __inline uint32_t
get_dc_scaler(uint32_t quant,
uint32_t lum)
{
if (quant < 5)
return 8;
if (quant < 25 && !lum)
return (quant + 13) / 2;
if (quant < 9)
return 2 * quant;
if (quant < 25)
return quant + 8;
if (lum)
return 2 * quant - 16;
else
return quant - 6;
}
/* useful macros */
#ifndef MIN
#define MIN(X, Y) ((X)<(Y)?(X):(Y))
#endif
#ifndef MAX
#define MAX(X, Y) ((X)>(Y)?(X):(Y))
#endif
/* #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))
#define SWAP(_T_,A,B) { _T_ tmp = A; A = B; B = tmp; }
static __inline uint32_t
isqrt(unsigned long n)
{
uint32_t c = 0x8000;
uint32_t g = 0x8000;
for(;;) {
if(g*g > n)
g ^= c;
c >>= 1;
if(c == 0)
return g;
g |= c;
}
}
#endif /* _GLOBAL_H_ */
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