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* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
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* - Global definitions - |
* - Global definitions - |
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* |
* |
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* Copyright(C) 2002 Michael Militzer <isibaar@xvid.org> |
* Copyright(C) 2002-2010 Michael Militzer <michael@xvid.org> |
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* |
* |
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* This program is free software ; you can redistribute it and/or modify |
* This program is free software ; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
* it under the terms of the GNU General Public License as published by |
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#define MODE_DIRECT_NONE_MV 4 |
#define MODE_DIRECT_NONE_MV 4 |
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#define MODE_DIRECT_NO4V 5 |
#define MODE_DIRECT_NO4V 5 |
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/* |
/* |
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* vop coding types |
* vop coding types |
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* intra, prediction, backward, sprite, not_coded |
* intra, prediction, backward, sprite, not_coded |
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return xvid_type - 1; |
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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} |
} |
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VECTOR; |
VECTOR; |
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typedef struct |
typedef struct |
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{ |
{ |
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VECTOR duv[3]; |
VECTOR duv[3]; |
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} |
} |
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IMAGE; |
IMAGE; |
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typedef struct |
typedef struct |
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{ |
{ |
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uint32_t bufa; |
uint32_t bufa; |
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} |
} |
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Bitstream; |
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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int32_t sad8[4]; /* SAD values for inter4v-VECTORs */ |
int32_t sad8[4]; /* SAD values for inter4v-VECTORs */ |
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int32_t sad16; /* SAD value for inter-VECTOR */ |
int32_t sad16; /* SAD value for inter-VECTOR */ |
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int32_t var16; /* Variance of the 16x16 luma block */ |
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int32_t rel_var8[6]; /* Relative variances of the 8x8 sub-blocks */ |
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int dquant; |
int dquant; |
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int cbp; |
int cbp; |
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/* lambda for these blocks */ |
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int lambda[6]; |
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/* bframe stuff */ |
/* bframe stuff */ |
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VECTOR b_mvs[4]; |
VECTOR b_mvs[4]; |
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#define DIV_DIV(a,b) (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b)) |
#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; } |
#define SWAP(_T_,A,B) { _T_ tmp = A; A = B; B = tmp; } |
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static __inline uint32_t |
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isqrt(unsigned long n) |
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{ |
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uint32_t c = 0x8000; |
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uint32_t g = 0x8000; |
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for(;;) { |
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if(g*g > n) |
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g ^= c; |
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c >>= 1; |
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if(c == 0) |
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return g; |
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g |= c; |
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} |
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} |
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#endif /* _GLOBAL_H_ */ |
#endif /* _GLOBAL_H_ */ |