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libavutil/error.c

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00001 /*
00002  * This file is part of FFmpeg.
00003  *
00004  * FFmpeg is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * FFmpeg is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with FFmpeg; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00017  */
00018 
00019 #include "avutil.h"
00020 #include "avstring.h"
00021 
00022 int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
00023 {
00024     int ret = 0;
00025     const char *errstr = NULL;
00026 
00027     switch (errnum) {
00028     case AVERROR_EOF:               errstr = "End of file"; break;
00029     case AVERROR_INVALIDDATA:       errstr = "Invalid data found when processing input"; break;
00030     case AVERROR_NUMEXPECTED:       errstr = "Number syntax expected in filename"; break;
00031     case AVERROR_PATCHWELCOME:      errstr = "Not yet implemented in FFmpeg, patches welcome"; break;
00032     }
00033 
00034     if (errstr) {
00035         av_strlcpy(errbuf, errstr, errbuf_size);
00036     } else {
00037 #if HAVE_STRERROR_R
00038         ret = strerror_r(AVUNERROR(errnum), errbuf, errbuf_size);
00039 #else
00040         ret = -1;
00041 #endif
00042         if (ret < 0)
00043             snprintf(errbuf, errbuf_size, "Error number %d occurred", errnum);
00044     }
00045 
00046     return ret;
00047 }

Generated on Fri Sep 16 2011 17:17:51 for FFmpeg by  doxygen 1.7.1