| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (C) 2016 foo86 | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #ifndef AVCODEC_DCAMATH_H | ||
| 22 | #define AVCODEC_DCAMATH_H | ||
| 23 | |||
| 24 | #include "libavutil/common.h" | ||
| 25 | #include "libavutil/intmath.h" | ||
| 26 | |||
| 27 | 112298728 | static inline int32_t norm__(int64_t a, int bits) | |
| 28 | { | ||
| 29 |
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112298728 | if (bits > 0) |
| 30 | 112298728 | return (int32_t)((a + (INT64_C(1) << (bits - 1))) >> bits); | |
| 31 | else | ||
| 32 | ✗ | return (int32_t)a; | |
| 33 | } | ||
| 34 | |||
| 35 | 86571197 | static inline int32_t mul__(int32_t a, int32_t b, int bits) | |
| 36 | { | ||
| 37 | 86571197 | return norm__((int64_t)a * b, bits); | |
| 38 | } | ||
| 39 | |||
| 40 | 392496 | static inline int32_t norm13(int64_t a) { return norm__(a, 13); } | |
| 41 | 4662555 | static inline int32_t norm16(int64_t a) { return norm__(a, 16); } | |
| 42 | 860160 | static inline int32_t norm20(int64_t a) { return norm__(a, 20); } | |
| 43 | 7532544 | static inline int32_t norm21(int64_t a) { return norm__(a, 21); } | |
| 44 | 4972032 | static inline int32_t norm23(int64_t a) { return norm__(a, 23); } | |
| 45 | |||
| 46 | 224706 | static inline int32_t mul15(int32_t a, int32_t b) { return mul__(a, b, 15); } | |
| 47 | 257134 | static inline int32_t mul16(int32_t a, int32_t b) { return mul__(a, b, 16); } | |
| 48 | 40656 | static inline int32_t mul17(int32_t a, int32_t b) { return mul__(a, b, 17); } | |
| 49 | 917504 | static inline int32_t mul22(int32_t a, int32_t b) { return mul__(a, b, 22); } | |
| 50 | 13119393 | static inline int32_t mul23(int32_t a, int32_t b) { return mul__(a, b, 23); } | |
| 51 | ✗ | static inline int32_t mul31(int32_t a, int32_t b) { return mul__(a, b, 31); } | |
| 52 | 72011804 | static inline int32_t mul32(int32_t a, int32_t b) { return mul__(a, b, 32); } | |
| 53 | |||
| 54 | 48523321 | static inline int32_t clip23(int32_t a) { return av_clip_intp2(a, 23); } | |
| 55 | |||
| 56 | #endif | ||
| 57 |