Lexically sort the error code definitions.
[libav.git] / libavutil / error.h
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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
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36
37#if LIBAVUTIL_VERSION_MAJOR < 51
5ae092ee 38#define AVERROR_IO AVERROR(EIO) /**< I/O error */
7c074320 39#define AVERROR_NOMEM AVERROR(ENOMEM) /**< not enough memory */
9b359f51 40#define AVERROR_UNKNOWN AVERROR(EINVAL) /**< unknown error */
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41#endif
42
9b359f51 43#define AVERROR_EOF AVERROR(EPIPE) /**< End of file. */
60c144f7 44#define AVERROR_INVALIDDATA AVERROR(EINVAL) /**< invalid data found */
9b359f51 45#define AVERROR_NOENT AVERROR(ENOENT) /**< No such file or directory. */
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46#define AVERROR_NOFMT AVERROR(EILSEQ) /**< unknown format */
47#define AVERROR_NOTSUPP AVERROR(ENOSYS) /**< Operation not supported. */
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48#define AVERROR_NUMEXPECTED AVERROR(EDOM) /**< Number syntax expected in filename. */
49
dbfa5e78 50#define AVERROR_PATCHWELCOME (-MKTAG('P','A','W','E')) /**< Not yet implemented in FFmpeg. Patches welcome. */
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51
52#endif /* AVUTIL_ERROR_H */