/* * Simple IDCT * * Copyright (c) 2001 Michael Niedermayer <michaelni@gmx.at> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * simple idct header. */ #ifndef AVCODEC_SIMPLE_IDCT_H #define AVCODEC_SIMPLE_IDCT_H #include <stdint.h> void ff_simple_idct_put_8(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct_add_8(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct_8(int16_t *block); void ff_simple_idct_put_10(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct_add_10(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct_10(int16_t *block); void ff_simple_idct_put_12(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct_add_12(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct_12(int16_t *block); /** * Special version of ff_simple_idct_10() which does dequantization * and scales by a factor of 2 more between the two IDCTs to account * for larger scale of input coefficients. */ void ff_prores_idct(int16_t *block, const int16_t *qmat); void ff_simple_idct248_put(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct84_add(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct48_add(uint8_t *dest, int line_size, int16_t *block); void ff_simple_idct44_add(uint8_t *dest, int line_size, int16_t *block); #endif /* AVCODEC_SIMPLE_IDCT_H */