Commit | Line | Data |
---|---|---|
2ba45a60 DM |
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 | #undef _GNU_SOURCE | |
20 | #define _XOPEN_SOURCE 600 /* XSI-compliant version of strerror_r */ | |
21 | #include "avutil.h" | |
22 | #include "avstring.h" | |
23 | #include "common.h" | |
24 | ||
25 | struct error_entry { | |
26 | int num; | |
27 | const char *tag; | |
28 | const char *str; | |
29 | }; | |
30 | ||
31 | #define ERROR_TAG(tag) AVERROR_##tag, #tag | |
32 | static const struct error_entry error_entries[] = { | |
33 | { ERROR_TAG(BSF_NOT_FOUND), "Bitstream filter not found" }, | |
34 | { ERROR_TAG(BUG), "Internal bug, should not have happened" }, | |
35 | { ERROR_TAG(BUG2), "Internal bug, should not have happened" }, | |
36 | { ERROR_TAG(BUFFER_TOO_SMALL), "Buffer too small" }, | |
37 | { ERROR_TAG(DECODER_NOT_FOUND), "Decoder not found" }, | |
38 | { ERROR_TAG(DEMUXER_NOT_FOUND), "Demuxer not found" }, | |
39 | { ERROR_TAG(ENCODER_NOT_FOUND), "Encoder not found" }, | |
40 | { ERROR_TAG(EOF), "End of file" }, | |
41 | { ERROR_TAG(EXIT), "Immediate exit requested" }, | |
42 | { ERROR_TAG(EXTERNAL), "Generic error in an external library" }, | |
43 | { ERROR_TAG(FILTER_NOT_FOUND), "Filter not found" }, | |
44 | { ERROR_TAG(INVALIDDATA), "Invalid data found when processing input" }, | |
45 | { ERROR_TAG(MUXER_NOT_FOUND), "Muxer not found" }, | |
46 | { ERROR_TAG(OPTION_NOT_FOUND), "Option not found" }, | |
47 | { ERROR_TAG(PATCHWELCOME), "Not yet implemented in FFmpeg, patches welcome" }, | |
48 | { ERROR_TAG(PROTOCOL_NOT_FOUND), "Protocol not found" }, | |
49 | { ERROR_TAG(STREAM_NOT_FOUND), "Stream not found" }, | |
50 | { ERROR_TAG(UNKNOWN), "Unknown error occurred" }, | |
51 | { ERROR_TAG(EXPERIMENTAL), "Experimental feature" }, | |
52 | }; | |
53 | ||
54 | int av_strerror(int errnum, char *errbuf, size_t errbuf_size) | |
55 | { | |
56 | int ret = 0, i; | |
57 | const struct error_entry *entry = NULL; | |
58 | ||
59 | for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) { | |
60 | if (errnum == error_entries[i].num) { | |
61 | entry = &error_entries[i]; | |
62 | break; | |
63 | } | |
64 | } | |
65 | if (entry) { | |
66 | av_strlcpy(errbuf, entry->str, errbuf_size); | |
67 | } else { | |
68 | #if HAVE_STRERROR_R | |
69 | ret = AVERROR(strerror_r(AVUNERROR(errnum), errbuf, errbuf_size)); | |
70 | #else | |
71 | ret = -1; | |
72 | #endif | |
73 | if (ret < 0) | |
74 | snprintf(errbuf, errbuf_size, "Error number %d occurred", errnum); | |
75 | } | |
76 | ||
77 | return ret; | |
78 | } | |
79 | ||
80 | #ifdef TEST | |
81 | ||
82 | #undef printf | |
83 | ||
84 | int main(void) | |
85 | { | |
86 | int i; | |
87 | ||
88 | for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) { | |
89 | const struct error_entry *entry = &error_entries[i]; | |
90 | printf("%d: %s [%s]\n", entry->num, av_err2str(entry->num), entry->tag); | |
91 | } | |
92 | ||
93 | for (i = 0; i < 256; i++) { | |
94 | printf("%d: %s\n", -i, av_err2str(-i)); | |
95 | } | |
96 | ||
97 | return 0; | |
98 | } | |
99 | ||
100 | #endif /* TEST */ |