lavu: add AVERROR_BUG error value
[libav.git] / libavutil / error.h
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60c144f7 1/*
2912e87a 2 * This file is part of Libav.
60c144f7 3 *
2912e87a 4 * Libav 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
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
2912e87a 9 * Libav 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
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
2912e87a 15 * License along with Libav; if not, write to the Free Software
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16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19/**
ba87f080 20 * @file
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21 * error code definitions
22 */
23
24#ifndef AVUTIL_ERROR_H
25#define AVUTIL_ERROR_H
26
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27#include <errno.h>
28#include "avutil.h"
29
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30/**
31 * @addtogroup lavu_error
32 *
33 * @{
34 */
35
36
60c144f7 37/* error handling */
6d2877f4 38#if EDOM > 0
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39#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions.
40#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
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41#else
42/* Some platforms have E* and errno already negated. */
43#define AVERROR(e) (e)
44#define AVUNERROR(e) (e)
45#endif
0edfa79b 46
8d67218b 47#define AVERROR_BSF_NOT_FOUND (-MKTAG(0xF8,'B','S','F')) ///< Bitstream filter not found
0bc55f5d 48#define AVERROR_DECODER_NOT_FOUND (-MKTAG(0xF8,'D','E','C')) ///< Decoder not found
8d67218b 49#define AVERROR_DEMUXER_NOT_FOUND (-MKTAG(0xF8,'D','E','M')) ///< Demuxer not found
0bc55f5d 50#define AVERROR_ENCODER_NOT_FOUND (-MKTAG(0xF8,'E','N','C')) ///< Encoder not found
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51#define AVERROR_EOF (-MKTAG( 'E','O','F',' ')) ///< End of file
52#define AVERROR_EXIT (-MKTAG( 'E','X','I','T')) ///< Immediate exit was requested; the called function should not be restarted
53#define AVERROR_FILTER_NOT_FOUND (-MKTAG(0xF8,'F','I','L')) ///< Filter not found
54#define AVERROR_INVALIDDATA (-MKTAG( 'I','N','D','A')) ///< Invalid data found when processing input
55#define AVERROR_MUXER_NOT_FOUND (-MKTAG(0xF8,'M','U','X')) ///< Muxer not found
58f84639 56#define AVERROR_OPTION_NOT_FOUND (-MKTAG(0xF8,'O','P','T')) ///< Option not found
8d67218b 57#define AVERROR_PATCHWELCOME (-MKTAG( 'P','A','W','E')) ///< Not yet implemented in Libav, patches welcome
0bc55f5d 58#define AVERROR_PROTOCOL_NOT_FOUND (-MKTAG(0xF8,'P','R','O')) ///< Protocol not found
0bc55f5d 59#define AVERROR_STREAM_NOT_FOUND (-MKTAG(0xF8,'S','T','R')) ///< Stream not found
1ee5b5e8 60#define AVERROR_BUG (-MKTAG( 'B','U','G',' ')) ///< Bug detected, please report the issue
0bc55f5d 61
87958234 62/**
49bd8e4b 63 * Put a description of the AVERROR code errnum in errbuf.
87958234 64 * In case of failure the global variable errno is set to indicate the
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65 * error. Even in case of failure av_strerror() will print a generic
66 * error message indicating the errnum provided to errbuf.
87958234 67 *
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68 * @param errnum error code to describe
69 * @param errbuf buffer to which description is written
87958234 70 * @param errbuf_size the size in bytes of errbuf
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71 * @return 0 on success, a negative value if a description for errnum
72 * cannot be found
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73 */
74int av_strerror(int errnum, char *errbuf, size_t errbuf_size);
75
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76/**
77 * @}
78 */
79
60c144f7 80#endif /* AVUTIL_ERROR_H */