FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/rnd_avg.h
Date: 2021-09-16 08:47:15
Exec Total Coverage
Lines: 6 6 100.0%
Branches: 0 0 -%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2001-2003 BERO <bero@geocities.co.jp>
3 * Copyright (c) 2011 Oskar Arvidsson
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #ifndef AVCODEC_RND_AVG_H
23 #define AVCODEC_RND_AVG_H
24
25 #include <stddef.h>
26 #include <stdint.h>
27
28 #define BYTE_VEC32(c) ((c) * 0x01010101UL)
29 #define BYTE_VEC64(c) ((c) * 0x0001000100010001UL)
30
31 1990306646 static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
32 {
33 1990306646 return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
34 }
35
36 142784932 static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
37 {
38 142784932 return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
39 }
40
41 13749000 static inline uint64_t rnd_avg64(uint64_t a, uint64_t b)
42 {
43 13749000 return (a | b) - (((a ^ b) & ~BYTE_VEC64(0x01)) >> 1);
44 }
45
46 static inline uint64_t no_rnd_avg64(uint64_t a, uint64_t b)
47 {
48 return (a & b) + (((a ^ b) & ~BYTE_VEC64(0x01)) >> 1);
49 }
50
51 #endif /* AVCODEC_RND_AVG_H */
52