1/* 2 * Simple IDCT 3 * 4 * Copyright (c) 2001 Michael Niedermayer <michaelni@gmx.at> 5 * 6 * This file is part of FFmpeg. 7 * 8 * FFmpeg is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * FFmpeg is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with FFmpeg; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23/** 24 * @file 25 * simple idct header. 26 */ 27 28#ifndef AVCODEC_SIMPLE_IDCT_H 29#define AVCODEC_SIMPLE_IDCT_H 30 31#include <stdint.h> 32 33void ff_simple_idct_put_8(uint8_t *dest, int line_size, int16_t *block); 34void ff_simple_idct_add_8(uint8_t *dest, int line_size, int16_t *block); 35void ff_simple_idct_8(int16_t *block); 36 37void ff_simple_idct_put_10(uint8_t *dest, int line_size, int16_t *block); 38void ff_simple_idct_add_10(uint8_t *dest, int line_size, int16_t *block); 39void ff_simple_idct_10(int16_t *block); 40 41void ff_simple_idct_put_12(uint8_t *dest, int line_size, int16_t *block); 42void ff_simple_idct_add_12(uint8_t *dest, int line_size, int16_t *block); 43void ff_simple_idct_12(int16_t *block); 44 45/** 46 * Special version of ff_simple_idct_10() which does dequantization 47 * and scales by a factor of 2 more between the two IDCTs to account 48 * for larger scale of input coefficients. 49 */ 50void ff_prores_idct(int16_t *block, const int16_t *qmat); 51 52void ff_simple_idct_mmx(int16_t *block); 53void ff_simple_idct_add_mmx(uint8_t *dest, int line_size, int16_t *block); 54void ff_simple_idct_put_mmx(uint8_t *dest, int line_size, int16_t *block); 55 56void ff_simple_idct248_put(uint8_t *dest, int line_size, int16_t *block); 57 58void ff_simple_idct84_add(uint8_t *dest, int line_size, int16_t *block); 59void ff_simple_idct48_add(uint8_t *dest, int line_size, int16_t *block); 60void ff_simple_idct44_add(uint8_t *dest, int line_size, int16_t *block); 61 62#endif /* AVCODEC_SIMPLE_IDCT_H */ 63