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#ifndef _GLOBAL_H_ |
#ifndef _GLOBAL_H_ |
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#define _GLOBAL_H_ |
#define _GLOBAL_H_ |
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#include "xvid.h" |
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#include "portab.h" |
#include "portab.h" |
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/* --- macroblock stuff --- */ |
/* --- macroblock modes --- */ |
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#define MODE_INTER 0 |
#define MODE_INTER 0 |
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#define MODE_INTER_Q 1 |
#define MODE_INTER_Q 1 |
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#define MODE_INTER4V 2 |
#define MODE_INTER4V 2 |
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#define MODE_INTRA 3 |
#define MODE_INTRA 3 |
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#define MODE_INTRA_Q 4 |
#define MODE_INTRA_Q 4 |
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#define MODE_STUFFING 7 |
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#define MODE_NOT_CODED 16 |
#define MODE_NOT_CODED 16 |
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#define MODE_NOT_CODED_GMC 17 |
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/* --- bframe specific --- */ |
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#define MODE_DIRECT 0 |
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#define MODE_INTERPOLATE 1 |
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#define MODE_BACKWARD 2 |
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#define MODE_FORWARD 3 |
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#define MODE_DIRECT_NONE_MV 4 |
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#define MODE_DIRECT_NO4V 5 |
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/* |
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* vop coding types |
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* intra, prediction, backward, sprite, not_coded |
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*/ |
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#define I_VOP 0 |
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#define P_VOP 1 |
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#define B_VOP 2 |
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#define S_VOP 3 |
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#define N_VOP 4 |
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/* convert mpeg-4 coding type i/p/b/s_VOP to XVID_TYPE_xxx */ |
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static __inline int |
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coding2type(int coding_type) |
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{ |
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return coding_type + 1; |
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} |
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/* convert XVID_TYPE_xxx to bitstream coding type i/p/b/s_VOP */ |
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static __inline int |
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type2coding(int xvid_type) |
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{ |
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return xvid_type - 1; |
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} |
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typedef struct |
typedef struct |
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{ |
{ |
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int x; |
int x; |
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int y; |
int y; |
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} VECTOR; |
} |
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VECTOR; |
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typedef struct |
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{ |
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VECTOR duv[3]; |
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} |
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WARPPOINTS; |
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/* save all warping parameters for GMC once and for all, instead of |
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recalculating for every block. This is needed for encoding&decoding |
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When switching to incremental calculations, this will get much shorter |
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*/ |
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/* we don't include WARPPOINTS wp here, but in FRAMEINFO itself */ |
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typedef struct |
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{ |
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int num_wp; /* [input]: 0=none, 1=translation, 2,3 = warping */ |
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/* a value of -1 means: "structure not initialized!" */ |
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int s; /* [input]: calc is done with 1/s pel resolution */ |
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int W; |
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int H; |
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int ss; |
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int smask; |
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int sigma; |
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int r; |
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int rho; |
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int i0s; |
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int j0s; |
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int i1s; |
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int j1s; |
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int i2s; |
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int j2s; |
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int i1ss; |
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int j1ss; |
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int i2ss; |
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int j2ss; |
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int alpha; |
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int beta; |
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int Ws; |
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int Hs; |
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int dxF, dyF, dxG, dyG; |
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int Fo, Go; |
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int cFo, cGo; |
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} |
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GMC_DATA; |
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typedef struct |
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{ |
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uint8_t *y; |
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uint8_t *u; |
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uint8_t *v; |
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} |
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IMAGE; |
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typedef struct |
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{ |
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uint32_t bufa; |
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uint32_t bufb; |
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uint32_t buf; |
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uint32_t pos; |
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uint32_t *tail; |
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uint32_t *start; |
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uint32_t length; |
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uint32_t initpos; |
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} |
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Bitstream; |
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#define MBPRED_SIZE 15 |
#define MBPRED_SIZE 15 |
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typedef struct |
typedef struct |
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{ |
{ |
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// decoder/encoder |
/* decoder/encoder */ |
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VECTOR mvs[4]; |
VECTOR mvs[4]; |
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uint32_t sad8[4]; // SAD values for inter4v-VECTORs |
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uint32_t sad16; // SAD value for inter-VECTOR |
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short int pred_values[6][MBPRED_SIZE]; |
short int pred_values[6][MBPRED_SIZE]; |
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int acpred_directions[6]; |
int acpred_directions[6]; |
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int mode; |
int mode; |
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int quant; // absolute quant |
int quant; /* absolute quant */ |
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int field_dct; |
int field_dct; |
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int field_pred; |
int field_pred; |
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int field_for_top; |
int field_for_top; |
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int field_for_bot; |
int field_for_bot; |
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// encoder specific |
/* encoder specific */ |
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VECTOR mv16; |
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VECTOR pmvs[4]; |
VECTOR pmvs[4]; |
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VECTOR qmvs[4]; /* mvs in quarter pixel resolution */ |
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int32_t sad8[4]; /* SAD values for inter4v-VECTORs */ |
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int32_t sad16; /* SAD value for inter-VECTOR */ |
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int dquant; |
int dquant; |
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int cbp; |
int cbp; |
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} MACROBLOCK; |
/* bframe stuff */ |
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static __inline int8_t get_dc_scaler(int32_t quant, uint32_t lum) |
VECTOR b_mvs[4]; |
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{ |
VECTOR b_qmvs[4]; |
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int8_t dc_scaler; |
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if(quant > 0 && quant < 5) { |
int mb_type; |
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dc_scaler = 8; |
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return dc_scaler; |
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} |
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if(quant < 25 && !lum) { |
/* |
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dc_scaler = (quant + 13) >> 1; |
* stuff for block based ME (needed for Qpel ME) |
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return dc_scaler; |
* backup of last integer ME vectors/sad |
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} |
*/ |
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if(quant < 9) { |
VECTOR amv; /* average motion vectors from GMC */ |
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dc_scaler = quant << 1; |
int32_t mcsel; |
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return dc_scaler; |
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} |
/* This structure has become way to big! What to do? Split it up? */ |
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if(quant < 25) { |
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dc_scaler = quant + 8; |
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return dc_scaler; |
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} |
} |
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MACROBLOCK; |
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static __inline uint32_t |
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get_dc_scaler(uint32_t quant, |
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uint32_t lum) |
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{ |
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if (quant < 5) |
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return 8; |
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if (quant < 25 && !lum) |
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return (quant + 13) / 2; |
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if (quant < 9) |
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return 2 * quant; |
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if (quant < 25) |
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return quant + 8; |
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if(lum) |
if(lum) |
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dc_scaler = (quant << 1) - 16; |
return 2 * quant - 16; |
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else |
else |
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dc_scaler = quant - 6; |
return quant - 6; |
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return dc_scaler; |
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} |
} |
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/* useful macros */ |
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#define MIN(X, Y) ((X)<(Y)?(X):(Y)) |
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#define MAX(X, Y) ((X)>(Y)?(X):(Y)) |
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/* #define ABS(X) (((X)>0)?(X):-(X)) */ |
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#define SIGN(X) (((X)>0)?1:-1) |
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#define CLIP(X,AMIN,AMAX) (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X)) |
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#define DIV_DIV(a,b) (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b)) |
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#define SWAP(_T_,A,B) { _T_ tmp = A; A = B; B = tmp; } |
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#endif /* _GLOBAL_H_ */ |
#endif /* _GLOBAL_H_ */ |