1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/*
* 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
*/
#undef _GNU_SOURCE
#define _XOPEN_SOURCE 600 /* XSI-compliant version of strerror_r */
#include "avutil.h"
#include "avstring.h"
#include "common.h"
struct error_entry {
int num;
const char *tag;
const char *str;
};
#define ERROR_TAG(tag) AVERROR_##tag, #tag
#define EERROR_TAG(tag) AVERROR(tag), #tag
#define AVERROR_INPUT_AND_OUTPUT_CHANGED (AVERROR_INPUT_CHANGED | AVERROR_OUTPUT_CHANGED)
static const struct error_entry error_entries[] = {
{ ERROR_TAG(BSF_NOT_FOUND), "Bitstream filter not found" },
{ ERROR_TAG(BUG), "Internal bug, should not have happened" },
{ ERROR_TAG(BUG2), "Internal bug, should not have happened" },
{ ERROR_TAG(BUFFER_TOO_SMALL), "Buffer too small" },
{ ERROR_TAG(DECODER_NOT_FOUND), "Decoder not found" },
{ ERROR_TAG(DEMUXER_NOT_FOUND), "Demuxer not found" },
{ ERROR_TAG(ENCODER_NOT_FOUND), "Encoder not found" },
{ ERROR_TAG(EOF), "End of file" },
{ ERROR_TAG(EXIT), "Immediate exit requested" },
{ ERROR_TAG(EXTERNAL), "Generic error in an external library" },
{ ERROR_TAG(FILTER_NOT_FOUND), "Filter not found" },
{ ERROR_TAG(INPUT_CHANGED), "Input changed" },
{ ERROR_TAG(INVALIDDATA), "Invalid data found when processing input" },
{ ERROR_TAG(MUXER_NOT_FOUND), "Muxer not found" },
{ ERROR_TAG(OPTION_NOT_FOUND), "Option not found" },
{ ERROR_TAG(OUTPUT_CHANGED), "Output changed" },
{ ERROR_TAG(PATCHWELCOME), "Not yet implemented in FFmpeg, patches welcome" },
{ ERROR_TAG(PROTOCOL_NOT_FOUND), "Protocol not found" },
{ ERROR_TAG(STREAM_NOT_FOUND), "Stream not found" },
{ ERROR_TAG(UNKNOWN), "Unknown error occurred" },
{ ERROR_TAG(EXPERIMENTAL), "Experimental feature" },
{ ERROR_TAG(INPUT_AND_OUTPUT_CHANGED), "Input and output changed" },
{ ERROR_TAG(HTTP_BAD_REQUEST), "Server returned 400 Bad Request" },
{ ERROR_TAG(HTTP_UNAUTHORIZED), "Server returned 401 Unauthorized (authorization failed)" },
{ ERROR_TAG(HTTP_FORBIDDEN), "Server returned 403 Forbidden (access denied)" },
{ ERROR_TAG(HTTP_NOT_FOUND), "Server returned 404 Not Found" },
{ ERROR_TAG(HTTP_OTHER_4XX), "Server returned 4XX Client Error, but not one of 40{0,1,3,4}" },
{ ERROR_TAG(HTTP_SERVER_ERROR), "Server returned 5XX Server Error reply" },
#if !HAVE_STRERROR_R
{ EERROR_TAG(E2BIG), "Argument list too long" },
{ EERROR_TAG(EACCES), "Permission denied" },
{ EERROR_TAG(EAGAIN), "Resource temporarily unavailable" },
{ EERROR_TAG(EBADF), "Bad file descriptor" },
{ EERROR_TAG(EBUSY), "Device or resource busy" },
{ EERROR_TAG(ECHILD), "No child processes" },
{ EERROR_TAG(EDEADLK), "Resource deadlock avoided" },
{ EERROR_TAG(EDOM), "Numerical argument out of domain" },
{ EERROR_TAG(EEXIST), "File exists" },
{ EERROR_TAG(EFAULT), "Bad address" },
{ EERROR_TAG(EFBIG), "File too large" },
{ EERROR_TAG(EILSEQ), "Illegal byte sequence" },
{ EERROR_TAG(EINTR), "Interrupted system call" },
{ EERROR_TAG(EINVAL), "Invalid argument" },
{ EERROR_TAG(EIO), "I/O error" },
{ EERROR_TAG(EISDIR), "Is a directory" },
{ EERROR_TAG(EMFILE), "Too many open files" },
{ EERROR_TAG(EMLINK), "Too many links" },
{ EERROR_TAG(ENAMETOOLONG), "File name too long" },
{ EERROR_TAG(ENFILE), "Too many open files in system" },
{ EERROR_TAG(ENODEV), "No such device" },
{ EERROR_TAG(ENOENT), "No such file or directory" },
{ EERROR_TAG(ENOEXEC), "Exec format error" },
{ EERROR_TAG(ENOLCK), "No locks available" },
{ EERROR_TAG(ENOMEM), "Cannot allocate memory" },
{ EERROR_TAG(ENOSPC), "No space left on device" },
{ EERROR_TAG(ENOSYS), "Function not implemented" },
{ EERROR_TAG(ENOTDIR), "Not a directory" },
{ EERROR_TAG(ENOTEMPTY), "Directory not empty" },
{ EERROR_TAG(ENOTTY), "Inappropriate I/O control operation" },
{ EERROR_TAG(ENXIO), "No such device or address" },
{ EERROR_TAG(EPERM), "Operation not permitted" },
{ EERROR_TAG(EPIPE), "Broken pipe" },
{ EERROR_TAG(ERANGE), "Result too large" },
{ EERROR_TAG(EROFS), "Read-only file system" },
{ EERROR_TAG(ESPIPE), "Illegal seek" },
{ EERROR_TAG(ESRCH), "No such process" },
{ EERROR_TAG(EXDEV), "Cross-device link" },
#endif
};
int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
{
int ret = 0, i;
const struct error_entry *entry = NULL;
for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) {
if (errnum == error_entries[i].num) {
entry = &error_entries[i];
break;
}
}
if (entry) {
av_strlcpy(errbuf, entry->str, errbuf_size);
} else {
#if HAVE_STRERROR_R
ret = AVERROR(strerror_r(AVUNERROR(errnum), errbuf, errbuf_size));
#else
ret = -1;
#endif
if (ret < 0)
snprintf(errbuf, errbuf_size, "Error number %d occurred", errnum);
}
return ret;
}
#ifdef TEST
#undef printf
int main(void)
{
int i;
for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) {
const struct error_entry *entry = &error_entries[i];
printf("%d: %s [%s]\n", entry->num, av_err2str(entry->num), entry->tag);
}
for (i = 0; i < 256; i++) {
printf("%d: %s\n", -i, av_err2str(-i));
}
return 0;
}
#endif /* TEST */
|
