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1 : | Isibaar | 1.1 | #ifndef _GLOBAL_H_ |
2 : | #define _GLOBAL_H_ | ||
3 : | |||
4 : | h | 1.4 | #include "xvid.h" |
5 : | Isibaar | 1.1 | #include "portab.h" |
6 : | |||
7 : | suxen_drol | 1.5 | /* --- macroblock modes --- */ |
8 : | Isibaar | 1.1 | |
9 : | #define MODE_INTER 0 | ||
10 : | #define MODE_INTER_Q 1 | ||
11 : | #define MODE_INTER4V 2 | ||
12 : | #define MODE_INTRA 3 | ||
13 : | #define MODE_INTRA_Q 4 | ||
14 : | #define MODE_STUFFING 7 | ||
15 : | #define MODE_NOT_CODED 16 | ||
16 : | |||
17 : | suxen_drol | 1.5 | /* --- bframe specific --- */ |
18 : | |||
19 : | #define MODE_DIRECT 0 | ||
20 : | #define MODE_INTERPOLATE 1 | ||
21 : | #define MODE_BACKWARD 2 | ||
22 : | #define MODE_FORWARD 3 | ||
23 : | chenm001 | 1.6 | #define MODE_DIRECT_NONE_MV 4 |
24 : | suxen_drol | 1.5 | |
25 : | |||
26 : | Isibaar | 1.1 | typedef struct |
27 : | { | ||
28 : | h | 1.4 | uint32_t bufa; |
29 : | uint32_t bufb; | ||
30 : | uint32_t buf; | ||
31 : | uint32_t pos; | ||
32 : | uint32_t *tail; | ||
33 : | uint32_t *start; | ||
34 : | uint32_t length; | ||
35 : | } | ||
36 : | Bitstream; | ||
37 : | Isibaar | 1.1 | |
38 : | |||
39 : | #define MBPRED_SIZE 15 | ||
40 : | |||
41 : | |||
42 : | typedef struct | ||
43 : | { | ||
44 : | // decoder/encoder | ||
45 : | VECTOR mvs[4]; | ||
46 : | uint32_t sad8[4]; // SAD values for inter4v-VECTORs | ||
47 : | uint32_t sad16; // SAD value for inter-VECTOR | ||
48 : | |||
49 : | short int pred_values[6][MBPRED_SIZE]; | ||
50 : | int acpred_directions[6]; | ||
51 : | |||
52 : | int mode; | ||
53 : | int quant; // absolute quant | ||
54 : | |||
55 : | h | 1.2 | int field_dct; |
56 : | int field_pred; | ||
57 : | int field_for_top; | ||
58 : | int field_for_bot; | ||
59 : | |||
60 : | Isibaar | 1.1 | // encoder specific |
61 : | |||
62 : | VECTOR pmvs[4]; | ||
63 : | int dquant; | ||
64 : | int cbp; | ||
65 : | |||
66 : | suxen_drol | 1.5 | // bframe stuff |
67 : | |||
68 : | VECTOR b_mvs[4]; | ||
69 : | VECTOR b_pmvs[4]; | ||
70 : | chenm001 | 1.6 | |
71 : | int mb_type; | ||
72 : | int dbquant; | ||
73 : | suxen_drol | 1.5 | |
74 : | Isibaar | 1.1 | } MACROBLOCK; |
75 : | |||
76 : | Isibaar | 1.7 | static __inline int8_t get_dc_scaler(uint32_t quant, uint32_t lum) |
77 : | Isibaar | 1.1 | { |
78 : | Isibaar | 1.7 | if(quant < 5) |
79 : | return 8; | ||
80 : | Isibaar | 1.1 | |
81 : | Isibaar | 1.7 | if(quant < 25 && !lum) |
82 : | return (quant + 13) / 2; | ||
83 : | Isibaar | 1.1 | |
84 : | Isibaar | 1.7 | if(quant < 9) |
85 : | return 2 * quant; | ||
86 : | Isibaar | 1.1 | |
87 : | Isibaar | 1.7 | if(quant < 25) |
88 : | return quant + 8; | ||
89 : | Isibaar | 1.1 | |
90 : | if(lum) | ||
91 : | Isibaar | 1.7 | return 2 * quant - 16; |
92 : | Isibaar | 1.1 | else |
93 : | Isibaar | 1.7 | return quant - 6; |
94 : | Isibaar | 1.1 | } |
95 : | suxen_drol | 1.5 | |
96 : | // useful macros | ||
97 : | |||
98 : | #define MIN(X, Y) ((X)<(Y)?(X):(Y)) | ||
99 : | #define MAX(X, Y) ((X)>(Y)?(X):(Y)) | ||
100 : | #define ABS(X) (((X)>0)?(X):-(X)) | ||
101 : | #define SIGN(X) (((X)>0)?1:-1) | ||
102 : | |||
103 : | Isibaar | 1.1 | |
104 : | edgomez | 1.3 | #endif /* _GLOBAL_H_ */ |
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