1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libavutil/error.h	Tue Sep 25 15:55:33 2012 +0200
     1.3 @@ -0,0 +1,53 @@
     1.4 +/*
     1.5 + * This file is part of FFmpeg.
     1.6 + *
     1.7 + * FFmpeg is free software; you can redistribute it and/or
     1.8 + * modify it under the terms of the GNU Lesser General Public
     1.9 + * License as published by the Free Software Foundation; either
    1.10 + * version 2.1 of the License, or (at your option) any later version.
    1.11 + *
    1.12 + * FFmpeg is distributed in the hope that it will be useful,
    1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    1.15 + * Lesser General Public License for more details.
    1.16 + *
    1.17 + * You should have received a copy of the GNU Lesser General Public
    1.18 + * License along with FFmpeg; if not, write to the Free Software
    1.19 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    1.20 + */
    1.21 +
    1.22 +/**
    1.23 + * @file
    1.24 + * error code definitions
    1.25 + */
    1.26 +
    1.27 +#ifndef AVUTIL_ERROR_H
    1.28 +#define AVUTIL_ERROR_H
    1.29 +
    1.30 +#include <errno.h>
    1.31 +#include "common.h"
    1.32 +
    1.33 +/* error handling */
    1.34 +#if EDOM > 0
    1.35 +#define AVERROR(e) (-(e))   ///< Returns a negative error code from a POSIX error code, to return from library functions.
    1.36 +#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
    1.37 +#else
    1.38 +/* Some platforms have E* and errno already negated. */
    1.39 +#define AVERROR(e) (e)
    1.40 +#define AVUNERROR(e) (e)
    1.41 +#endif
    1.42 +
    1.43 +#define AVERROR_EOF         AVERROR(EPIPE)   ///< End of file
    1.44 +
    1.45 +
    1.46 +/**
    1.47 + * Puts a description of the AVERROR code errnum in errbuf.
    1.48 + * In case of failure the global variable errno is set to indicate the
    1.49 + * error.
    1.50 + *
    1.51 + * @param errbuf_size the size in bytes of errbuf
    1.52 + * @return 0 on success, a negative value otherwise
    1.53 + */
    1.54 +int av_strerror(int errnum, char *errbuf, size_t errbuf_size);
    1.55 +
    1.56 +#endif /* AVUTIL_ERROR_H */