mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
7c2bb79f3b
The errors need to be defined before including functions depending on them. See av_size_mult() for instance. stddef.h is included for the prototype of av_sterror (use of size_t).
90 lines
3.5 KiB
C
90 lines
3.5 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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.
|
|
*
|
|
* FFmpeg 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 FFmpeg; 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 FFERRTAG(a, b, c, d) (-(int)MKTAG(a, b, c, d))
|
|
|
|
#define AVERROR_BSF_NOT_FOUND FFERRTAG(0xF8,'B','S','F') ///< Bitstream filter not found
|
|
#define AVERROR_BUG FFERRTAG( 'B','U','G','!') ///< Internal bug, also see AVERROR_BUG2
|
|
#define AVERROR_DECODER_NOT_FOUND FFERRTAG(0xF8,'D','E','C') ///< Decoder not found
|
|
#define AVERROR_DEMUXER_NOT_FOUND FFERRTAG(0xF8,'D','E','M') ///< Demuxer not found
|
|
#define AVERROR_ENCODER_NOT_FOUND FFERRTAG(0xF8,'E','N','C') ///< Encoder not found
|
|
#define AVERROR_EOF FFERRTAG( 'E','O','F',' ') ///< End of file
|
|
#define AVERROR_EXIT FFERRTAG( 'E','X','I','T') ///< Immediate exit was requested; the called function should not be restarted
|
|
#define AVERROR_FILTER_NOT_FOUND FFERRTAG(0xF8,'F','I','L') ///< Filter not found
|
|
#define AVERROR_INVALIDDATA FFERRTAG( 'I','N','D','A') ///< Invalid data found when processing input
|
|
#define AVERROR_MUXER_NOT_FOUND FFERRTAG(0xF8,'M','U','X') ///< Muxer not found
|
|
#define AVERROR_OPTION_NOT_FOUND FFERRTAG(0xF8,'O','P','T') ///< Option not found
|
|
#define AVERROR_PATCHWELCOME FFERRTAG( 'P','A','W','E') ///< Not yet implemented in FFmpeg, patches welcome
|
|
#define AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O') ///< Protocol not found
|
|
#define AVERROR_STREAM_NOT_FOUND FFERRTAG(0xF8,'S','T','R') ///< Stream not found
|
|
|
|
/**
|
|
* This is semantically identical to AVERROR_BUG
|
|
* it has been introduced in Libav after our AVERROR_BUG and with a modified value.
|
|
*/
|
|
#define AVERROR_BUG2 FFERRTAG( 'B','U','G',' ')
|
|
#define AVERROR_UNKNOWN FFERRTAG( 'U','N','K','N') ///< Unknown error, typically from an external library
|
|
|
|
/**
|
|
* 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 */
|