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86 lines
4.1 KiB
C
86 lines
4.1 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* error code definitions
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*/
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#ifndef AVUTIL_ERROR_H
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#define AVUTIL_ERROR_H
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#include <errno.h>
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#include <stddef.h>
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/**
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* @addtogroup lavu_error
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*
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* @{
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*/
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/* error handling */
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#if EDOM > 0
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#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions.
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#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
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#else
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/* Some platforms have E* and errno already negated. */
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#define AVERROR(e) (e)
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#define AVUNERROR(e) (e)
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#endif
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#define FFMKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((unsigned)(d) << 24))
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#define FFERRTAG(a, b, c, d) (-(int)FFMKTAG(a, b, c, d))
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#define AVERROR_BSF_NOT_FOUND FFERRTAG(0xF8,'B','S','F') ///< Bitstream filter not found
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#define AVERROR_BUG FFERRTAG( 'B','U','G','!') ///< Internal bug, also see AVERROR_BUG2
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#define AVERROR_BUFFER_TOO_SMALL FFERRTAG( 'B','U','F','S') ///< Buffer too small
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#define AVERROR_DECODER_NOT_FOUND FFERRTAG(0xF8,'D','E','C') ///< Decoder not found
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#define AVERROR_DEMUXER_NOT_FOUND FFERRTAG(0xF8,'D','E','M') ///< Demuxer not found
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#define AVERROR_ENCODER_NOT_FOUND FFERRTAG(0xF8,'E','N','C') ///< Encoder not found
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#define AVERROR_EOF FFERRTAG( 'E','O','F',' ') ///< End of file
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#define AVERROR_EXIT FFERRTAG( 'E','X','I','T') ///< Immediate exit was requested; the called function should not be restarted
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#define AVERROR_EXTERNAL FFERRTAG( 'E','X','T',' ') ///< Generic error in an external library
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#define AVERROR_FILTER_NOT_FOUND FFERRTAG(0xF8,'F','I','L') ///< Filter not found
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#define AVERROR_INVALIDDATA FFERRTAG( 'I','N','D','A') ///< Invalid data found when processing input
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#define AVERROR_MUXER_NOT_FOUND FFERRTAG(0xF8,'M','U','X') ///< Muxer not found
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#define AVERROR_OPTION_NOT_FOUND FFERRTAG(0xF8,'O','P','T') ///< Option not found
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#define AVERROR_PATCHWELCOME FFERRTAG( 'P','A','W','E') ///< Not yet implemented in FFmpeg, patches welcome
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#define AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O') ///< Protocol not found
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#define AVERROR_STREAM_NOT_FOUND FFERRTAG(0xF8,'S','T','R') ///< Stream not found
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/**
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* This is semantically identical to AVERROR_BUG
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* it has been introduced in Libav after our AVERROR_BUG and with a modified value.
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*/
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#define AVERROR_BUG2 FFERRTAG( 'B','U','G',' ')
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#define AVERROR_UNKNOWN FFERRTAG( 'U','N','K','N') ///< Unknown error, typically from an external library
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#define AVERROR_EXPERIMENTAL (-0x2bb2afa8) ///< Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
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#define AVERROR_INPUT_CHANGED (-0x636e6701) ///< Input changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_OUTPUT_CHANGED)
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#define AVERROR_OUTPUT_CHANGED (-0x636e6702) ///< Output changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_INPUT_CHANGED)
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/* HTTP & RTSP errors */
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#define AVERROR_HTTP_BAD_REQUEST FFERRTAG(0xF8,'4','0','0')
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#define AVERROR_HTTP_UNAUTHORIZED FFERRTAG(0xF8,'4','0','1')
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#define AVERROR_HTTP_FORBIDDEN FFERRTAG(0xF8,'4','0','3')
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#define AVERROR_HTTP_NOT_FOUND FFERRTAG(0xF8,'4','0','4')
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#define AVERROR_HTTP_OTHER_4XX FFERRTAG(0xF8,'4','X','X')
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#define AVERROR_HTTP_SERVER_ERROR FFERRTAG(0xF8,'5','X','X')
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#define AV_ERROR_MAX_STRING_SIZE 64
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#endif /* AVUTIL_ERROR_H */
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