--- global.h 2002/04/13 16:30:01 1.5 +++ global.h 2002/06/12 20:38:40 1.10 @@ -20,6 +20,7 @@ #define MODE_INTERPOLATE 1 #define MODE_BACKWARD 2 #define MODE_FORWARD 3 +#define MODE_DIRECT_NONE_MV 4 typedef struct @@ -31,7 +32,7 @@ uint32_t *tail; uint32_t *start; uint32_t length; -} +} Bitstream; @@ -42,14 +43,12 @@ { // decoder/encoder VECTOR mvs[4]; - uint32_t sad8[4]; // SAD values for inter4v-VECTORs - uint32_t sad16; // SAD value for inter-VECTOR - short int pred_values[6][MBPRED_SIZE]; - int acpred_directions[6]; - + short int pred_values[6][MBPRED_SIZE]; + int acpred_directions[6]; + int mode; - int quant; // absolute quant + int quant; // absolute quant int field_dct; int field_pred; @@ -58,7 +57,12 @@ // encoder specific + VECTOR mv16; VECTOR pmvs[4]; + + int32_t sad8[4]; // SAD values for inter4v-VECTORs + int32_t sad16; // SAD value for inter-VECTOR + int dquant; int cbp; @@ -67,40 +71,33 @@ VECTOR b_mvs[4]; VECTOR b_pmvs[4]; -} MACROBLOCK; + int mb_type; + int dbquant; + +} +MACROBLOCK; -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) { - int8_t dc_scaler; + if (quant < 5) + return 8; - if(quant > 0 && quant < 5) { - dc_scaler = 8; - return dc_scaler; - } - - if(quant < 25 && !lum) { - dc_scaler = (quant + 13) >> 1; - return dc_scaler; - } - - if(quant < 9) { - dc_scaler = quant << 1; - return dc_scaler; - } - - if(quant < 25) { - dc_scaler = quant + 8; - return dc_scaler; - } + if (quant < 25 && !lum) + return (quant + 13) / 2; - if(lum) - dc_scaler = (quant << 1) - 16; - else - dc_scaler = quant - 6; + if (quant < 9) + return 2 * quant; - return dc_scaler; -} + if (quant < 25) + return quant + 8; + if (lum) + return 2 * quant - 16; + else + return quant - 6; +} // useful macros @@ -110,4 +107,4 @@ #define SIGN(X) (((X)>0)?1:-1) -#endif /* _GLOBAL_H_ */ +#endif /* _GLOBAL_H_ */