e1334987baf9ee50197df8ee2e334c1dafe61743
1 /*****************************************************************************
2 * Copyright (C) 2014 x265 project
4 * Authors: Steve Borho <steve@borho.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
20 * This program is also available under a commercial proprietary license.
21 * For more information, contact us at license @ x265.com.
22 *****************************************************************************/
24 #ifndef X265_SCALINGLIST_H
25 #define X265_SCALINGLIST_H
36 enum { NUM_SIZES
= 4 }; // 4x4, 8x8, 16x16, 32x32
37 enum { NUM_LISTS
= 6 }; // number of quantization matrix lists (YUV * inter/intra)
38 enum { NUM_REM
= 6 }; // number of remainders of QP/6
39 enum { MAX_MATRIX_COEF_NUM
= 64 }; // max coefficient number per quantization matrix
40 enum { MAX_MATRIX_SIZE_NUM
= 8 }; // max size number for quantization matrix
42 static const int s_numCoefPerSize
[NUM_SIZES
];
43 static const int32_t s_invQuantScales
[NUM_REM
];
44 static const int32_t s_quantScales
[NUM_REM
];
46 int32_t m_scalingListDC
[NUM_SIZES
][NUM_LISTS
]; // the DC value of the matrix coefficient for 16x16
47 int32_t* m_scalingListCoef
[NUM_SIZES
][NUM_LISTS
]; // quantization matrix
49 int32_t* m_quantCoef
[NUM_SIZES
][NUM_LISTS
][NUM_REM
]; // array of quantization matrix coefficient 4x4
50 int32_t* m_dequantCoef
[NUM_SIZES
][NUM_LISTS
][NUM_REM
]; // array of dequantization matrix coefficient 4x4
53 bool m_bDataPresent
; // non-default scaling lists must be signaled
59 void setDefaultScalingList();
60 bool parseScalingList(const char* filename
);
61 void setupQuantMatrices();
63 /* used during SPS coding */
64 int checkPredMode(int sizeId
, int listId
) const;
68 static const int SCALING_LIST_DC
= 16; // default DC value
70 const int32_t* getScalingListDefaultAddress(int sizeId
, int listId
) const;
71 void processDefaultMarix(int sizeId
, int listId
);
72 bool checkDefaultScalingList() const;
74 void processScalingListEnc(int32_t *coeff
, int32_t *quantcoeff
, int32_t quantScales
, int height
, int width
, int ratio
, int stride
, int32_t dc
);
75 void processScalingListDec(int32_t *coeff
, int32_t *dequantcoeff
, int32_t invQuantScales
, int height
, int width
, int ratio
, int stride
, int32_t dc
);
80 #endif // ifndef X265_SCALINGLIST_H