/*

 * 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>

#include "avutil.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.

/**

 * 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 */