| /* |
| * 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 |
| #include "avutil.h" |
| #include "avstring.h" |
| |
| int av_strerror(int errnum, char *errbuf, size_t errbuf_size) |
| { |
| int ret = 0; |
| const char *errstr = NULL; |
| |
| switch (errnum) { |
| case AVERROR_BSF_NOT_FOUND: errstr = "Bitstream filter not found" ; break; |
| case AVERROR_BUG2: |
| case AVERROR_BUG: errstr = "Internal bug, should not have happened" ; break; |
| case AVERROR_DECODER_NOT_FOUND: errstr = "Decoder not found" ; break; |
| case AVERROR_DEMUXER_NOT_FOUND: errstr = "Demuxer not found" ; break; |
| case AVERROR_ENCODER_NOT_FOUND: errstr = "Encoder not found" ; break; |
| case AVERROR_EOF: errstr = "End of file" ; break; |
| case AVERROR_EXIT: errstr = "Immediate exit requested" ; break; |
| case AVERROR_FILTER_NOT_FOUND: errstr = "Filter not found" ; break; |
| case AVERROR_INVALIDDATA: errstr = "Invalid data found when processing input" ; break; |
| case AVERROR_MUXER_NOT_FOUND: errstr = "Muxer not found" ; break; |
| case AVERROR_OPTION_NOT_FOUND: errstr = "Option not found" ; break; |
| case AVERROR_PATCHWELCOME: errstr = "Not yet implemented in FFmpeg, patches welcome"; break; |
| case AVERROR_PROTOCOL_NOT_FOUND:errstr = "Protocol not found" ; break; |
| case AVERROR_STREAM_NOT_FOUND: errstr = "Stream not found" ; break; |
| case AVERROR_UNKNOWN: errstr = "Unknown error occurred" ; break; |
| } |
| |
| if (errstr) { |
| av_strlcpy(errbuf, errstr, errbuf_size); |
| } else { |
| #if HAVE_STRERROR_R |
| ret = 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; |
| } |