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typedef struct |
typedef struct |
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{ |
{ |
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// decoder/encoder |
/* decoder/encoder */ |
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VECTOR mvs[4]; |
VECTOR mvs[4]; |
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short int pred_values[6][MBPRED_SIZE]; |
short int pred_values[6][MBPRED_SIZE]; |
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int acpred_directions[6]; |
int acpred_directions[6]; |
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int mode; |
int mode; |
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int quant; // absolute quant |
int quant; /* absolute quant */ |
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int field_dct; |
int field_dct; |
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int field_pred; |
int field_pred; |
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int field_for_top; |
int field_for_top; |
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int field_for_bot; |
int field_for_bot; |
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// encoder specific |
/* encoder specific */ |
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VECTOR mv16; |
VECTOR mv16; |
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VECTOR pmvs[4]; |
VECTOR pmvs[4]; |
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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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int dquant; |
int dquant; |
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int cbp; |
int cbp; |
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// bframe stuff |
/* bframe stuff */ |
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VECTOR b_mvs[4]; |
VECTOR b_mvs[4]; |
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VECTOR b_pmvs[4]; |
VECTOR b_pmvs[4]; |
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// bframe direct mode |
/* bframe direct mode */ |
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VECTOR directmv[4]; |
VECTOR directmv[4]; |
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VECTOR deltamv; |
VECTOR deltamv; |
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int mb_type; |
int mb_type; |
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int dbquant; |
int dbquant; |
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// stuff for block based ME (needed for Qpel ME) |
/* stuff for block based ME (needed for Qpel ME) */ |
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// backup of last integer ME vectors/sad |
/* backup of last integer ME vectors/sad */ |
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VECTOR i_mv16; |
VECTOR i_mv16; |
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VECTOR i_mvs[4]; |
VECTOR i_mvs[4]; |
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int32_t i_sad8[4]; // SAD values for inter4v-VECTORs |
int32_t i_sad8[4]; /* SAD values for inter4v-VECTORs */ |
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int32_t i_sad16; // SAD value for inter-VECTOR |
int32_t i_sad16; /* SAD value for inter-VECTOR */ |
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} |
} |
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MACROBLOCK; |
MACROBLOCK; |
155 |
return 8; |
return 8; |
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if (quant < 25 && !lum) |
if (quant < 25 && !lum) |
158 |
return (quant + 13) / 2; |
return (int8_t)((quant + 13) / 2); |
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if (quant < 9) |
if (quant < 9) |
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return 2 * quant; |
return (int8_t)(2 * quant); |
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if (quant < 25) |
if (quant < 25) |
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return quant + 8; |
return (int8_t)(quant + 8); |
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if (lum) |
if (lum) |
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return 2 * quant - 16; |
return (int8_t)(2 * quant - 16); |
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else |
else |
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return quant - 6; |
return (int8_t)(quant - 6); |
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} |
} |
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// useful macros |
/* useful macros */ |
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#define MIN(X, Y) ((X)<(Y)?(X):(Y)) |
#define MIN(X, Y) ((X)<(Y)?(X):(Y)) |
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#define MAX(X, Y) ((X)>(Y)?(X):(Y)) |
#define MAX(X, Y) ((X)>(Y)?(X):(Y)) |