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Diffstat (limited to 'Src/h264dec/ldecod/inc/quant.h')
| -rw-r--r-- | Src/h264dec/ldecod/inc/quant.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/Src/h264dec/ldecod/inc/quant.h b/Src/h264dec/ldecod/inc/quant.h new file mode 100644 index 00000000..01bde65f --- /dev/null +++ b/Src/h264dec/ldecod/inc/quant.h @@ -0,0 +1,169 @@ + +/*! + ************************************************************************ + * \file quant.h + * + * \brief + * definitions for quantization functions + * + * \author + * + ************************************************************************ + */ + +#ifndef _QUANT_H_ +#define _QUANT_H_ + +// exported variables +static const int dequant_coef8[6][64] = +{ + { + 20, 19, 25, 19, 20, 19, 25, 19, + 19, 18, 24, 18, 19, 18, 24, 18, + 25, 24, 32, 24, 25, 24, 32, 24, + 19, 18, 24, 18, 19, 18, 24, 18, + 20, 19, 25, 19, 20, 19, 25, 19, + 19, 18, 24, 18, 19, 18, 24, 18, + 25, 24, 32, 24, 25, 24, 32, 24, + 19, 18, 24, 18, 19, 18, 24, 18 + }, + { + 22, 21, 28, 21, 22, 21, 28, 21, + 21, 19, 26, 19, 21, 19, 26, 19, + 28, 26, 35, 26, 28, 26, 35, 26, + 21, 19, 26, 19, 21, 19, 26, 19, + 22, 21, 28, 21, 22, 21, 28, 21, + 21, 19, 26, 19, 21, 19, 26, 19, + 28, 26, 35, 26, 28, 26, 35, 26, + 21, 19, 26, 19, 21, 19, 26, 19 + }, + { + 26, 24, 33, 24, 26, 24, 33, 24, + 24, 23, 31, 23, 24, 23, 31, 23, + 33, 31, 42, 31, 33, 31, 42, 31, + 24, 23, 31, 23, 24, 23, 31, 23, + 26, 24, 33, 24, 26, 24, 33, 24, + 24, 23, 31, 23, 24, 23, 31, 23, + 33, 31, 42, 31, 33, 31, 42, 31, + 24, 23, 31, 23, 24, 23, 31, 23 + }, + { + 28, 26, 35, 26, 28, 26, 35, 26, + 26, 25, 33, 25, 26, 25, 33, 25, + 35, 33, 45, 33, 35, 33, 45, 33, + 26, 25, 33, 25, 26, 25, 33, 25, + 28, 26, 35, 26, 28, 26, 35, 26, + 26, 25, 33, 25, 26, 25, 33, 25, + 35, 33, 45, 33, 35, 33, 45, 33, + 26, 25, 33, 25, 26, 25, 33, 25 + }, + { + 32, 30, 40, 30, 32, 30, 40, 30, + 30, 28, 38, 28, 30, 28, 38, 28, + 40, 38, 51, 38, 40, 38, 51, 38, + 30, 28, 38, 28, 30, 28, 38, 28, + 32, 30, 40, 30, 32, 30, 40, 30, + 30, 28, 38, 28, 30, 28, 38, 28, + 40, 38, 51, 38, 40, 38, 51, 38, + 30, 28, 38, 28, 30, 28, 38, 28 + }, + { + 36, 34, 46, 34, 36, 34, 46, 34, + 34, 32, 43, 32, 34, 32, 43, 32, + 46, 43, 58, 43, 46, 43, 58, 43, + 34, 32, 43, 32, 34, 32, 43, 32, + 36, 34, 46, 34, 36, 34, 46, 34, + 34, 32, 43, 32, 34, 32, 43, 32, + 46, 43, 58, 43, 46, 43, 58, 43, + 34, 32, 43, 32, 34, 32, 43, 32 + } +}; + + +//! Dequantization coefficients +static const int dequant_coef[6][4][4] = { + { + { 10, 13, 10, 13}, + { 13, 16, 13, 16}, + { 10, 13, 10, 13}, + { 13, 16, 13, 16}}, + { + { 11, 14, 11, 14}, + { 14, 18, 14, 18}, + { 11, 14, 11, 14}, + { 14, 18, 14, 18}}, + { + { 13, 16, 13, 16}, + { 16, 20, 16, 20}, + { 13, 16, 13, 16}, + { 16, 20, 16, 20}}, + { + { 14, 18, 14, 18}, + { 18, 23, 18, 23}, + { 14, 18, 14, 18}, + { 18, 23, 18, 23}}, + { + { 16, 20, 16, 20}, + { 20, 25, 20, 25}, + { 16, 20, 16, 20}, + { 20, 25, 20, 25}}, + { + { 18, 23, 18, 23}, + { 23, 29, 23, 29}, + { 18, 23, 18, 23}, + { 23, 29, 23, 29}} +}; + +static const int quant_coef[6][4][4] = { + { + { 13107, 8066, 13107, 8066}, + { 8066, 5243, 8066, 5243}, + { 13107, 8066, 13107, 8066}, + { 8066, 5243, 8066, 5243}}, + { + { 11916, 7490, 11916, 7490}, + { 7490, 4660, 7490, 4660}, + { 11916, 7490, 11916, 7490}, + { 7490, 4660, 7490, 4660}}, + { + { 10082, 6554, 10082, 6554}, + { 6554, 4194, 6554, 4194}, + { 10082, 6554, 10082, 6554}, + { 6554, 4194, 6554, 4194}}, + { + { 9362, 5825, 9362, 5825}, + { 5825, 3647, 5825, 3647}, + { 9362, 5825, 9362, 5825}, + { 5825, 3647, 5825, 3647}}, + { + { 8192, 5243, 8192, 5243}, + { 5243, 3355, 5243, 3355}, + { 8192, 5243, 8192, 5243}, + { 5243, 3355, 5243, 3355}}, + { + { 7282, 4559, 7282, 4559}, + { 4559, 2893, 4559, 2893}, + { 7282, 4559, 7282, 4559}, + { 4559, 2893, 4559, 2893}} +}; + +// SP decoding parameter (EQ. 8-425) +static const int A[4][4] = { + { 16, 20, 16, 20}, + { 20, 25, 20, 25}, + { 16, 20, 16, 20}, + { 20, 25, 20, 25} +}; + +// exported functions +// quantization initialization +extern void init_qp_process (VideoParameters *p_Vid); +extern void free_qp_matrices(VideoParameters *p_Vid); + +// For Q-matrix +extern void assign_quant_params (Slice *currslice); +extern void CalculateQuant4x4Param(Slice *currslice); + + +#endif + |