yading@10: /*
yading@10:  * Simple IDCT
yading@10:  *
yading@10:  * Copyright (c) 2001 Michael Niedermayer <michaelni@gmx.at>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * simple idct header.
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_SIMPLE_IDCT_H
yading@10: #define AVCODEC_SIMPLE_IDCT_H
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: void ff_simple_idct_put_8(uint8_t *dest, int line_size, int16_t *block);
yading@10: void ff_simple_idct_add_8(uint8_t *dest, int line_size, int16_t *block);
yading@10: void ff_simple_idct_8(int16_t *block);
yading@10: 
yading@10: void ff_simple_idct_put_10(uint8_t *dest, int line_size, int16_t *block);
yading@10: void ff_simple_idct_add_10(uint8_t *dest, int line_size, int16_t *block);
yading@10: void ff_simple_idct_10(int16_t *block);
yading@10: /**
yading@10:  * Special version of ff_simple_idct_10() which does dequantization
yading@10:  * and scales by a factor of 2 more between the two IDCTs to account
yading@10:  * for larger scale of input coefficients.
yading@10:  */
yading@10: void ff_prores_idct(int16_t *block, const int16_t *qmat);
yading@10: 
yading@10: void ff_simple_idct_mmx(int16_t *block);
yading@10: void ff_simple_idct_add_mmx(uint8_t *dest, int line_size, int16_t *block);
yading@10: void ff_simple_idct_put_mmx(uint8_t *dest, int line_size, int16_t *block);
yading@10: 
yading@10: void ff_simple_idct248_put(uint8_t *dest, int line_size, int16_t *block);
yading@10: 
yading@10: void ff_simple_idct84_add(uint8_t *dest, int line_size, int16_t *block);
yading@10: void ff_simple_idct48_add(uint8_t *dest, int line_size, int16_t *block);
yading@10: void ff_simple_idct44_add(uint8_t *dest, int line_size, int16_t *block);
yading@10: 
yading@10: #endif /* AVCODEC_SIMPLE_IDCT_H */