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2ba45a60 DM |
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 | ||
33 | void ff_simple_idct_put_8(uint8_t *dest, int line_size, int16_t *block); | |
34 | void ff_simple_idct_add_8(uint8_t *dest, int line_size, int16_t *block); | |
35 | void ff_simple_idct_8(int16_t *block); | |
36 | ||
37 | void ff_simple_idct_put_10(uint8_t *dest, int line_size, int16_t *block); | |
38 | void ff_simple_idct_add_10(uint8_t *dest, int line_size, int16_t *block); | |
39 | void ff_simple_idct_10(int16_t *block); | |
40 | ||
41 | void ff_simple_idct_put_12(uint8_t *dest, int line_size, int16_t *block); | |
42 | void ff_simple_idct_add_12(uint8_t *dest, int line_size, int16_t *block); | |
43 | void 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 | */ | |
50 | void ff_prores_idct(int16_t *block, const int16_t *qmat); | |
51 | ||
52 | void ff_simple_idct248_put(uint8_t *dest, int line_size, int16_t *block); | |
53 | ||
54 | void ff_simple_idct84_add(uint8_t *dest, int line_size, int16_t *block); | |
55 | void ff_simple_idct48_add(uint8_t *dest, int line_size, int16_t *block); | |
56 | void ff_simple_idct44_add(uint8_t *dest, int line_size, int16_t *block); | |
57 | ||
58 | #endif /* AVCODEC_SIMPLE_IDCT_H */ |