/*****************************************************************************
* Copyright (C) 2013-2017 MulticoreWare, Inc
*
* Authors: Steve Borho <steve@borho.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
*
* This program is also available under a commercial proprietary license.
* For more information, contact us at license @ x265.com.
*****************************************************************************/
#ifndef X265_SCALINGLIST_H
#define X265_SCALINGLIST_H
#include "common.h"
namespace X265_NS {
// private namespace
class ScalingList
{
public:
enum { NUM_SIZES = 4 }; // 4x4, 8x8, 16x16, 32x32
enum { NUM_LISTS = 6 }; // number of quantization matrix lists (YUV * inter/intra)
enum { NUM_REM = 6 }; // number of remainders of QP/6
enum { MAX_MATRIX_COEF_NUM = 64 }; // max coefficient number per quantization matrix
enum { MAX_MATRIX_SIZE_NUM = 8 }; // max size number for quantization matrix
static const int s_numCoefPerSize[NUM_SIZES];
static const int32_t s_invQuantScales[NUM_REM];
static const int32_t s_quantScales[NUM_REM];
static const char MatrixType[4][6][20];
static const char MatrixType_DC[4][12][22];
int32_t m_scalingListDC[NUM_SIZES][NUM_LISTS]; // the DC value of the matrix coefficient for 16x16
int32_t* m_scalingListCoef[NUM_SIZES][NUM_LISTS]; // quantization matrix
int32_t* m_quantCoef[NUM_SIZES][NUM_LISTS][NUM_REM]; // array of quantization matrix coefficient 4x4
int32_t* m_dequantCoef[NUM_SIZES][NUM_LISTS][NUM_REM]; // array of dequantization matrix coefficient 4x4
bool m_bEnabled;
bool m_bDataPresent; // non-default scaling lists must be signaled
ScalingList();
~ScalingList();
bool init();
void setDefaultScalingList();
bool parseScalingList(const char* filename);
void setupQuantMatrices(int internalCsp);
/* used during SPS coding */
int checkPredMode(int sizeId, int listId) const;
protected:
static const int SCALING_LIST_DC = 16; // default DC value
const int32_t* getScalingListDefaultAddress(int sizeId, int listId) const;
void processDefaultMarix(int sizeId, int listId);
bool checkDefaultScalingList() const;
void processScalingListEnc(int32_t *coeff, int32_t *quantcoeff, int32_t quantScales, int height, int width, int ratio, int stride, int32_t dc);
void processScalingListDec(int32_t *coeff, int32_t *dequantcoeff, int32_t invQuantScales, int height, int width, int ratio, int stride, int32_t dc);
};
}
#endif // ifndef X265_SCALINGLIST_H