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| 1 : | Isibaar | 3 | #ifndef _GLOBAL_H_ |
| 2 : | #define _GLOBAL_H_ | ||
| 3 : | |||
| 4 : | h | 101 | #include "xvid.h" |
| 5 : | Isibaar | 3 | #include "portab.h" |
| 6 : | |||
| 7 : | suxen_drol | 118 | /* --- macroblock modes --- */ |
| 8 : | Isibaar | 3 | |
| 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 | 118 | /* --- 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 | 156 | #define MODE_DIRECT_NONE_MV 4 |
| 24 : | chl | 530 | #define MODE_DIRECT_NO4V 5 |
| 25 : | suxen_drol | 118 | |
| 26 : | |||
| 27 : | Isibaar | 3 | typedef struct |
| 28 : | { | ||
| 29 : | h | 101 | uint32_t bufa; |
| 30 : | uint32_t bufb; | ||
| 31 : | uint32_t buf; | ||
| 32 : | uint32_t pos; | ||
| 33 : | uint32_t *tail; | ||
| 34 : | uint32_t *start; | ||
| 35 : | uint32_t length; | ||
| 36 : | edgomez | 195 | } |
| 37 : | h | 101 | Bitstream; |
| 38 : | Isibaar | 3 | |
| 39 : | |||
| 40 : | #define MBPRED_SIZE 15 | ||
| 41 : | |||
| 42 : | |||
| 43 : | typedef struct | ||
| 44 : | { | ||
| 45 : | // decoder/encoder | ||
| 46 : | VECTOR mvs[4]; | ||
| 47 : | |||
| 48 : | chl | 172 | short int pred_values[6][MBPRED_SIZE]; |
| 49 : | int acpred_directions[6]; | ||
| 50 : | edgomez | 195 | |
| 51 : | Isibaar | 3 | int mode; |
| 52 : | edgomez | 195 | int quant; // absolute quant |
| 53 : | Isibaar | 3 | |
| 54 : | h | 69 | int field_dct; |
| 55 : | int field_pred; | ||
| 56 : | int field_for_top; | ||
| 57 : | int field_for_bot; | ||
| 58 : | |||
| 59 : | Isibaar | 3 | // encoder specific |
| 60 : | |||
| 61 : | chl | 172 | VECTOR mv16; |
| 62 : | Isibaar | 3 | VECTOR pmvs[4]; |
| 63 : | chl | 172 | |
| 64 : | edgomez | 195 | int32_t sad8[4]; // SAD values for inter4v-VECTORs |
| 65 : | int32_t sad16; // SAD value for inter-VECTOR | ||
| 66 : | chl | 172 | |
| 67 : | Isibaar | 3 | int dquant; |
| 68 : | int cbp; | ||
| 69 : | |||
| 70 : | suxen_drol | 118 | // bframe stuff |
| 71 : | |||
| 72 : | VECTOR b_mvs[4]; | ||
| 73 : | chl | 530 | // VECTOR b_pmvs[1]; |
| 74 : | suxen_drol | 118 | |
| 75 : | chl | 338 | // bframe direct mode |
| 76 : | |||
| 77 : | chl | 530 | // VECTOR directmv[4]; |
| 78 : | // VECTOR deltamv; | ||
| 79 : | chl | 338 | |
| 80 : | chenm001 | 156 | int mb_type; |
| 81 : | int dbquant; | ||
| 82 : | |||
| 83 : | chl | 277 | // stuff for block based ME (needed for Qpel ME) |
| 84 : | // backup of last integer ME vectors/sad | ||
| 85 : | |||
| 86 : | VECTOR i_mv16; | ||
| 87 : | chl | 287 | VECTOR i_mvs[4]; |
| 88 : | chl | 277 | |
| 89 : | chl | 287 | int32_t i_sad8[4]; // SAD values for inter4v-VECTORs |
| 90 : | int32_t i_sad16; // SAD value for inter-VECTOR | ||
| 91 : | chl | 277 | |
| 92 : | edgomez | 195 | } |
| 93 : | MACROBLOCK; | ||
| 94 : | Isibaar | 3 | |
| 95 : | edgomez | 195 | static __inline int8_t |
| 96 : | get_dc_scaler(uint32_t quant, | ||
| 97 : | uint32_t lum) | ||
| 98 : | Isibaar | 3 | { |
| 99 : | edgomez | 195 | if (quant < 5) |
| 100 : | return 8; | ||
| 101 : | Isibaar | 3 | |
| 102 : | edgomez | 195 | if (quant < 25 && !lum) |
| 103 : | return (quant + 13) / 2; | ||
| 104 : | Isibaar | 3 | |
| 105 : | edgomez | 195 | if (quant < 9) |
| 106 : | return 2 * quant; | ||
| 107 : | Isibaar | 3 | |
| 108 : | edgomez | 195 | if (quant < 25) |
| 109 : | return quant + 8; | ||
| 110 : | Isibaar | 3 | |
| 111 : | edgomez | 195 | if (lum) |
| 112 : | Isibaar | 157 | return 2 * quant - 16; |
| 113 : | Isibaar | 3 | else |
| 114 : | edgomez | 195 | return quant - 6; |
| 115 : | Isibaar | 3 | } |
| 116 : | |||
| 117 : | suxen_drol | 118 | // useful macros |
| 118 : | |||
| 119 : | #define MIN(X, Y) ((X)<(Y)?(X):(Y)) | ||
| 120 : | #define MAX(X, Y) ((X)>(Y)?(X):(Y)) | ||
| 121 : | #define ABS(X) (((X)>0)?(X):-(X)) | ||
| 122 : | #define SIGN(X) (((X)>0)?1:-1) | ||
| 123 : | |||
| 124 : | |||
| 125 : | edgomez | 195 | #endif /* _GLOBAL_H_ */ |
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