1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* error code definitions
*/
#ifndef AVUTIL_ERROR_H
#define AVUTIL_ERROR_H
#include <errno.h>
#include <stddef.h>
/**
* @addtogroup lavu_error
*
* @{
*/
/* error handling */
#if EDOM > 0
#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions.
#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
#else
/* Some platforms have E* and errno already negated. */
#define AVERROR(e) (e)
#define AVUNERROR(e) (e)
#endif
#define AVERROR_BSF_NOT_FOUND (-0x39acbd08) ///< Bitstream filter not found
#define AVERROR_DECODER_NOT_FOUND (-0x3cbabb08) ///< Decoder not found
#define AVERROR_DEMUXER_NOT_FOUND (-0x32babb08) ///< Demuxer not found
#define AVERROR_ENCODER_NOT_FOUND (-0x3cb1ba08) ///< Encoder not found
#define AVERROR_EOF (-0x5fb9b0bb) ///< End of file
#define AVERROR_EXIT (-0x2bb6a7bb) ///< Immediate exit was requested; the called function should not be restarted
#define AVERROR_FILTER_NOT_FOUND (-0x33b6b908) ///< Filter not found
#define AVERROR_INVALIDDATA (-0x3ebbb1b7) ///< Invalid data found when processing input
#define AVERROR_MUXER_NOT_FOUND (-0x27aab208) ///< Muxer not found
#define AVERROR_OPTION_NOT_FOUND (-0x2bafb008) ///< Option not found
#define AVERROR_PATCHWELCOME (-0x3aa8beb0) ///< Not yet implemented in Libav, patches welcome
#define AVERROR_PROTOCOL_NOT_FOUND (-0x30adaf08) ///< Protocol not found
#define AVERROR_STREAM_NOT_FOUND (-0x2dabac08) ///< Stream not found
#define AVERROR_BUG (-0x5fb8aabe) ///< Bug detected, please report the issue
#define AVERROR_UNKNOWN (-0x31b4b1ab) ///< Unknown error, typically from an external library
#define AVERROR_EXPERIMENTAL (-0x2bb2afa8) ///< Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
#define AVERROR_INPUT_CHANGED (-0x636e6701) ///< Input changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_OUTPUT_CHANGED)
#define AVERROR_OUTPUT_CHANGED (-0x636e6702) ///< Output changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_INPUT_CHANGED)
/**
* Put a description of the AVERROR code errnum in errbuf.
* In case of failure the global variable errno is set to indicate the
* error. Even in case of failure av_strerror() will print a generic
* error message indicating the errnum provided to errbuf.
*
* @param errnum error code to describe
* @param errbuf buffer to which description is written
* @param errbuf_size the size in bytes of errbuf
* @return 0 on success, a negative value if a description for errnum
* cannot be found
*/
int av_strerror(int errnum, char *errbuf, size_t errbuf_size);
/**
* @}
*/
#endif /* AVUTIL_ERROR_H */
|
