20 |
#define MODE_INTERPOLATE 1 |
#define MODE_INTERPOLATE 1 |
21 |
#define MODE_BACKWARD 2 |
#define MODE_BACKWARD 2 |
22 |
#define MODE_FORWARD 3 |
#define MODE_FORWARD 3 |
23 |
|
#define MODE_DIRECT_NONE_MV 4 |
24 |
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25 |
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26 |
typedef struct |
typedef struct |
43 |
{ |
{ |
44 |
// decoder/encoder |
// decoder/encoder |
45 |
VECTOR mvs[4]; |
VECTOR mvs[4]; |
46 |
uint32_t sad8[4]; // SAD values for inter4v-VECTORs |
int32_t sad8[4]; // (signed!) SAD values for inter4v-VECTORs |
47 |
uint32_t sad16; // SAD value for inter-VECTOR |
int32_t sad16; // (signed!) SAD value for inter-VECTOR |
48 |
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|
49 |
short int pred_values[6][MBPRED_SIZE]; |
short int pred_values[6][MBPRED_SIZE]; |
50 |
int acpred_directions[6]; |
int acpred_directions[6]; |
68 |
VECTOR b_mvs[4]; |
VECTOR b_mvs[4]; |
69 |
VECTOR b_pmvs[4]; |
VECTOR b_pmvs[4]; |
70 |
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71 |
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int mb_type; |
72 |
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int dbquant; |
73 |
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74 |
} MACROBLOCK; |
} MACROBLOCK; |
75 |
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76 |
static __inline int8_t get_dc_scaler(int32_t quant, uint32_t lum) |
static __inline int8_t get_dc_scaler(uint32_t quant, uint32_t lum) |
77 |
{ |
{ |
78 |
int8_t dc_scaler; |
if(quant < 5) |
79 |
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return 8; |
|
if(quant > 0 && quant < 5) { |
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dc_scaler = 8; |
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return dc_scaler; |
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} |
|
80 |
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|
81 |
if(quant < 25 && !lum) { |
if(quant < 25 && !lum) |
82 |
dc_scaler = (quant + 13) >> 1; |
return (quant + 13) / 2; |
|
return dc_scaler; |
|
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} |
|
83 |
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|
84 |
if(quant < 9) { |
if(quant < 9) |
85 |
dc_scaler = quant << 1; |
return 2 * quant; |
|
return dc_scaler; |
|
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} |
|
86 |
|
|
87 |
if(quant < 25) { |
if(quant < 25) |
88 |
dc_scaler = quant + 8; |
return quant + 8; |
|
return dc_scaler; |
|
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} |
|
89 |
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|
90 |
if(lum) |
if(lum) |
91 |
dc_scaler = (quant << 1) - 16; |
return 2 * quant - 16; |
92 |
else |
else |
93 |
dc_scaler = quant - 6; |
return quant - 6; |
|
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|
|
return dc_scaler; |
|
94 |
} |
} |
95 |
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96 |
// useful macros |
// useful macros |
97 |
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|
98 |
#define MIN(X, Y) ((X)<(Y)?(X):(Y)) |
#define MIN(X, Y) ((X)<(Y)?(X):(Y)) |