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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6147 | serge | 1 | /* |
| 2 | * This file is part of FFmpeg. |
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| 3 | * |
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| 4 | * FFmpeg is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * FFmpeg is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with FFmpeg; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 17 | */ |
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| 18 | |||
| 19 | #undef _GNU_SOURCE |
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| 20 | #define _XOPEN_SOURCE 600 /* XSI-compliant version of strerror_r */ |
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| 21 | #include "avutil.h" |
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| 22 | #include "avstring.h" |
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| 23 | #include "common.h" |
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| 24 | |||
| 25 | struct error_entry { |
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| 26 | int num; |
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| 27 | const char *tag; |
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| 28 | const char *str; |
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| 29 | }; |
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| 30 | |||
| 31 | #define ERROR_TAG(tag) AVERROR_##tag, #tag |
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| 32 | #define EERROR_TAG(tag) AVERROR(tag), #tag |
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| 33 | #define AVERROR_INPUT_AND_OUTPUT_CHANGED (AVERROR_INPUT_CHANGED | AVERROR_OUTPUT_CHANGED) |
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| 34 | static const struct error_entry error_entries[] = { |
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| 35 | { ERROR_TAG(BSF_NOT_FOUND), "Bitstream filter not found" }, |
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| 36 | { ERROR_TAG(BUG), "Internal bug, should not have happened" }, |
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| 37 | { ERROR_TAG(BUG2), "Internal bug, should not have happened" }, |
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| 38 | { ERROR_TAG(BUFFER_TOO_SMALL), "Buffer too small" }, |
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| 39 | { ERROR_TAG(DECODER_NOT_FOUND), "Decoder not found" }, |
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| 40 | { ERROR_TAG(DEMUXER_NOT_FOUND), "Demuxer not found" }, |
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| 41 | { ERROR_TAG(ENCODER_NOT_FOUND), "Encoder not found" }, |
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| 42 | { ERROR_TAG(EOF), "End of file" }, |
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| 43 | { ERROR_TAG(EXIT), "Immediate exit requested" }, |
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| 44 | { ERROR_TAG(EXTERNAL), "Generic error in an external library" }, |
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| 45 | { ERROR_TAG(FILTER_NOT_FOUND), "Filter not found" }, |
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| 46 | { ERROR_TAG(INPUT_CHANGED), "Input changed" }, |
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| 47 | { ERROR_TAG(INVALIDDATA), "Invalid data found when processing input" }, |
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| 48 | { ERROR_TAG(MUXER_NOT_FOUND), "Muxer not found" }, |
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| 49 | { ERROR_TAG(OPTION_NOT_FOUND), "Option not found" }, |
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| 50 | { ERROR_TAG(OUTPUT_CHANGED), "Output changed" }, |
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| 51 | { ERROR_TAG(PATCHWELCOME), "Not yet implemented in FFmpeg, patches welcome" }, |
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| 52 | { ERROR_TAG(PROTOCOL_NOT_FOUND), "Protocol not found" }, |
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| 53 | { ERROR_TAG(STREAM_NOT_FOUND), "Stream not found" }, |
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| 54 | { ERROR_TAG(UNKNOWN), "Unknown error occurred" }, |
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| 55 | { ERROR_TAG(EXPERIMENTAL), "Experimental feature" }, |
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| 56 | { ERROR_TAG(INPUT_AND_OUTPUT_CHANGED), "Input and output changed" }, |
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| 57 | { ERROR_TAG(HTTP_BAD_REQUEST), "Server returned 400 Bad Request" }, |
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| 58 | { ERROR_TAG(HTTP_UNAUTHORIZED), "Server returned 401 Unauthorized (authorization failed)" }, |
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| 59 | { ERROR_TAG(HTTP_FORBIDDEN), "Server returned 403 Forbidden (access denied)" }, |
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| 60 | { ERROR_TAG(HTTP_NOT_FOUND), "Server returned 404 Not Found" }, |
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| 61 | { ERROR_TAG(HTTP_OTHER_4XX), "Server returned 4XX Client Error, but not one of 40{0,1,3,4}" }, |
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| 62 | { ERROR_TAG(HTTP_SERVER_ERROR), "Server returned 5XX Server Error reply" }, |
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| 63 | #if !HAVE_STRERROR_R |
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| 64 | { EERROR_TAG(EINVAL), "Invalid argument" }, |
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| 65 | #endif |
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| 66 | }; |
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| 67 | |||
| 68 | int av_strerror(int errnum, char *errbuf, size_t errbuf_size) |
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| 69 | { |
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| 70 | int ret = 0, i; |
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| 71 | const struct error_entry *entry = NULL; |
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| 72 | |||
| 73 | for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) { |
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| 74 | if (errnum == error_entries[i].num) { |
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| 75 | entry = &error_entries[i]; |
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| 76 | break; |
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| 77 | } |
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| 78 | } |
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| 79 | if (entry) { |
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| 80 | av_strlcpy(errbuf, entry->str, errbuf_size); |
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| 81 | } else { |
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| 82 | #if HAVE_STRERROR_R |
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| 83 | ret = AVERROR(strerror_r(AVUNERROR(errnum), errbuf, errbuf_size)); |
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| 84 | #else |
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| 85 | ret = -1; |
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| 86 | #endif |
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| 87 | if (ret < 0) |
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| 88 | snprintf(errbuf, errbuf_size, "Error number %d occurred", errnum); |
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| 89 | } |
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| 90 | |||
| 91 | return ret; |
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| 92 | } |
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| 93 | |||
| 94 | #ifdef TEST |
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| 95 | |||
| 96 | #undef printf |
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| 97 | |||
| 98 | int main(void) |
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| 99 | { |
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| 100 | int i; |
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| 101 | |||
| 102 | for (i = 0; i < FF_ARRAY_ELEMS(error_entries); i++) { |
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| 103 | const struct error_entry *entry = &error_entries[i]; |
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| 104 | printf("%d: %s [%s]\n", entry->num, av_err2str(entry->num), entry->tag); |
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| 105 | } |
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| 106 | |||
| 107 | for (i = 0; i < 256; i++) { |
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| 108 | printf("%d: %s\n", -i, av_err2str(-i)); |
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| 109 | } |
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| 110 | |||
| 111 | return 0; |
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| 112 | } |
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| 113 | |||
| 114 | #endif /* TEST */ |