| /* |
| * 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; |
| } |