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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 case AVERROR_DEMUXER_NOT_FOUND: errstr = "Demuxer not found"; break;
00033 case AVERROR_MUXER_NOT_FOUND: errstr = "Muxer not found"; break;
00034 case AVERROR_DECODER_NOT_FOUND: errstr = "Decoder not found"; break;
00035 case AVERROR_ENCODER_NOT_FOUND: errstr = "Encoder not found"; break;
00036 case AVERROR_PROTOCOL_NOT_FOUND:errstr = "Protocol not found"; break;
00037 case AVERROR_FILTER_NOT_FOUND: errstr = "Filter not found"; break;
00038 case AVERROR_BSF_NOT_FOUND: errstr = "Bitstream filter not found"; break;
00039 case AVERROR_STREAM_NOT_FOUND: errstr = "Stream not found"; break;
00040 }
00041
00042 if (errstr) {
00043 av_strlcpy(errbuf, errstr, errbuf_size);
00044 } else {
00045 #if HAVE_STRERROR_R
00046 ret = strerror_r(AVUNERROR(errnum), errbuf, errbuf_size);
00047 #else
00048 ret = -1;
00049 #endif
00050 if (ret < 0)
00051 snprintf(errbuf, errbuf_size, "Error number %d occurred", errnum);
00052 }
00053
00054 return ret;
00055 }