88e98d35a4b4b384a4817209e6b2a170bb9064f2
[libav.git] / libavutil / error.h
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
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 *
9 * FFmpeg is distributed in the hope that it will be useful,
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
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 /**
20 * @file libavutil/error.h
21 * error code definitions
22 */
23
24 #ifndef AVUTIL_ERROR_H
25 #define AVUTIL_ERROR_H
26
27 /* error handling */
28 #if EINVAL > 0
29 #define AVERROR(e) (-(e)) /**< Returns a negative error code from a POSIX error code, to return from library functions. */
30 #define AVUNERROR(e) (-(e)) /**< Returns a POSIX error code from a library function error return value. */
31 #else
32 /* Some platforms have E* and errno already negated. */
33 #define AVERROR(e) (e)
34 #define AVUNERROR(e) (e)
35 #endif
36
37 #if LIBAVUTIL_VERSION_MAJOR < 51
38 #define AVERROR_UNKNOWN AVERROR(EINVAL) /**< unknown error */
39 #define AVERROR_IO AVERROR(EIO) /**< I/O error */
40 #endif
41
42 #define AVERROR_NUMEXPECTED AVERROR(EDOM) /**< Number syntax expected in filename. */
43 #define AVERROR_INVALIDDATA AVERROR(EINVAL) /**< invalid data found */
44 #define AVERROR_NOMEM AVERROR(ENOMEM) /**< not enough memory */
45 #define AVERROR_NOFMT AVERROR(EILSEQ) /**< unknown format */
46 #define AVERROR_NOTSUPP AVERROR(ENOSYS) /**< Operation not supported. */
47 #define AVERROR_NOENT AVERROR(ENOENT) /**< No such file or directory. */
48 #define AVERROR_EOF AVERROR(EPIPE) /**< End of file. */
49 #define AVERROR_PATCHWELCOME (-MKTAG('P','A','W','E')) /**< Not yet implemented in FFmpeg. Patches welcome. */
50
51 #endif /* AVUTIL_ERROR_H */