FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavutil/utils.c
Date: 2026-08-26 01:27:24
Exec Total Coverage
Lines: 28 40 70.0%
Functions: 3 5 60.0%
Branches: 31 40 77.5%

Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "config.h"
20 #include "avutil.h"
21 #include "avassert.h"
22
23 /**
24 * @file
25 * various utility functions
26 */
27
28 1074095 const char *av_get_media_type_string(enum AVMediaType media_type)
29 {
30
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1074095 switch (media_type) {
31 373492 case AVMEDIA_TYPE_VIDEO: return "video";
32 696755 case AVMEDIA_TYPE_AUDIO: return "audio";
33 225 case AVMEDIA_TYPE_DATA: return "data";
34 3576 case AVMEDIA_TYPE_SUBTITLE: return "subtitle";
35 47 case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
36 default: return NULL;
37 }
38 }
39
40 2665 char av_get_picture_type_char(enum AVPictureType pict_type)
41 {
42
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2665 switch (pict_type) {
43 830 case AV_PICTURE_TYPE_I: return 'I';
44 1407 case AV_PICTURE_TYPE_P: return 'P';
45 177 case AV_PICTURE_TYPE_B: return 'B';
46 case AV_PICTURE_TYPE_S: return 'S';
47 case AV_PICTURE_TYPE_SI: return 'i';
48 case AV_PICTURE_TYPE_SP: return 'p';
49 case AV_PICTURE_TYPE_BI: return 'b';
50 251 default: return '?';
51 }
52 }
53
54 64190 char *av_fourcc_make_string(char *buf, uint32_t fourcc)
55 {
56 int i;
57 64190 char *orig_buf = buf;
58 64190 size_t buf_size = AV_FOURCC_MAX_STRING_SIZE;
59
60
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320950 for (i = 0; i < 4; i++) {
61 256760 const int c = fourcc & 0xff;
62
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256760 const int print_chr = (c >= '0' && c <= '9') ||
63
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243959 (c >= 'a' && c <= 'z') ||
64
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520177 (c >= 'A' && c <= 'Z') ||
65
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6657 (c && strchr(". -_", c));
66
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256760 const int len = snprintf(buf, buf_size, print_chr ? "%c" : "[%d]", c);
67
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256760 if (len < 0)
68 break;
69 256760 buf += len;
70
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256760 buf_size = buf_size > len ? buf_size - len : 0;
71 256760 fourcc >>= 8;
72 }
73
74 64190 return orig_buf;
75 }
76
77 AVRational av_get_time_base_q(void)
78 {
79 return (AVRational){1, AV_TIME_BASE};
80 }
81 #if FF_API_ASSERT_FPU
82 void av_assert0_fpu(void) {
83 #if HAVE_MMX_INLINE
84 uint16_t state[14];
85 __asm__ volatile (
86 "fstenv %0 \n\t"
87 : "+m" (state)
88 :
89 : "memory"
90 );
91 av_assert0((state[4] & 3) == 3);
92 #endif
93 }
94 #endif
95