| /* |
| * 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 <stddef.h> |
| #include <stdint.h> |
| |
| void ff_simple_idct_put_int16_8bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct_add_int16_8bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct_int16_8bit(int16_t *block); |
| |
| void ff_simple_idct_put_int16_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct_add_int16_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct_int16_10bit(int16_t *block); |
| |
| void ff_simple_idct_put_int32_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct_add_int32_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct_int32_10bit(int16_t *block); |
| |
| void ff_simple_idct_put_int16_12bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct_add_int16_12bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct_int16_12bit(int16_t *block); |
| |
| /** |
| * Special version of ff_simple_idct_int16_10bit() 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_10(int16_t *block, const int16_t *qmat); |
| void ff_prores_idct_12(int16_t *block, const int16_t *qmat); |
| |
| void ff_simple_idct248_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| |
| void ff_simple_idct84_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct48_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| void ff_simple_idct44_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block); |
| |
| #endif /* AVCODEC_SIMPLE_IDCT_H */ |