1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
(*
* 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
*
* This is a part of the Pascal port of ffmpeg.
* - Changes and updates by the UltraStar Deluxe Team
*
* Conversion of libavutil/error.h
* avutil version 51.34.101
*
*)
(**
* @file
* error code definitions
*)
(**
* @addtogroup lavu_error
*
* @{
*)
{* error handling *}
const
{$IFDEF UNIX}
ENOENT = ESysENOENT;
EIO = ESysEIO;
ENOMEM = ESysENOMEM;
EINVAL = ESysEINVAL;
EDOM = ESysEDOM;
ENOSYS = ESysENOSYS;
EILSEQ = ESysEILSEQ;
EPIPE = ESysEPIPE;
{$ELSE}
ENOENT = 2;
EIO = 5;
ENOMEM = 12;
EINVAL = 22;
EPIPE = 32; // just an assumption. needs to be checked.
EDOM = 33;
{$IFDEF MSWINDOWS}
// Note: we assume that ffmpeg was compiled with MinGW.
// This must be changed if DLLs were compiled with cygwin.
ENOSYS = 40; // MSVC/MINGW: 40, CYGWIN: 88, LINUX/FPC: 38
EILSEQ = 42; // MSVC/MINGW: 42, CYGWIN: 138, LINUX/FPC: 84
{$ENDIF}
{$ENDIF}
(**
* We need the sign of the error, because some platforms have
* E* and errno already negated. The previous version failed
* with Delphi, because it needed EINVAL defined.
* Warning: This code is platform dependent and assumes constants
* to be 32 bit.
* This version does the following steps:
* 1) shr 30: shifts the sign bit to bit position 2
* 2) and $00000002: sets all other bits to zero
* positive EINVAL gives 0, negative gives 2
* 3) - 1: positive EINVAL gives -1, negative 1
*)
const
AVERROR_SIGN = (EINVAL shr 30) and $00000002 - 1;
(*
#if EDOM > 0
#define AVERROR(e) (-(e)) {**< Returns a negative error code from a POSIX error code, to return from library functions. *}
#define AVUNERROR(e) (-(e)) {**< Returns a POSIX error code from a library function error return value. *}
#else
{* Some platforms have E* and errno already negated. *}
#define AVERROR(e) (e)
#define AVUNERROR(e) (e)
#endif
*)
const
// Note: function calls as constant-initializers are invalid
AVERROR_BSF_NOT_FOUND = -(ord($F8) or (ord('B') shl 8) or (ord('S') shl 16) or (ord('F') shl 24)); ///< Bitstream filter not found
AVERROR_BUG = -(ord('B') or (ord('U') shl 8) or (ord('G') shl 16) or (ord('!') shl 24)); ///< Internal bug, also see AVERROR_BUG2
AVERROR_DECODER_NOT_FOUND = -(ord($F8) or (ord('D') shl 8) or (ord('E') shl 16) or (ord('C') shl 24)); ///< Decoder not found
AVERROR_DEMUXER_NOT_FOUND = -(ord($F8) or (ord('D') shl 8) or (ord('E') shl 16) or (ord('M') shl 24)); ///< Demuxer not found
AVERROR_ENCODER_NOT_FOUND = -(ord($F8) or (ord('E') shl 8) or (ord('N') shl 16) or (ord('C') shl 24)); ///< Encoder not found
AVERROR_EOF = -(ord('E') or (ord('O') shl 8) or (ord('F') shl 16) or (ord(' ') shl 24)); ///< End of file
AVERROR_EXIT = -(ord('E') or (ord('X') shl 8) or (ord('I') shl 16) or (ord('T') shl 24)); ///< Immediate exit was requested; the called function should not be restarted
AVERROR_FILTER_NOT_FOUND = -(ord($F8) or (ord('F') shl 8) or (ord('I') shl 16) or (ord('L') shl 24)); ///< Filter not found
AVERROR_INVALIDDATA = -(ord('I') or (ord('N') shl 8) or (ord('D') shl 16) or (ord('A') shl 24)); ///< Invalid data found when processing input
AVERROR_MUXER_NOT_FOUND = -(ord($F8) or (ord('M') shl 8) or (ord('U') shl 16) or (ord('X') shl 24)); ///< Muxer not found
AVERROR_OPTION_NOT_FOUND = -(ord($F8) or (ord('O') shl 8) or (ord('P') shl 16) or (ord('T') shl 24)); ///< Option not found
AVERROR_PATCHWELCOME = -(ord('P') or (ord('A') shl 8) or (ord('W') shl 16) or (ord('E') shl 24)); ///< Not yet implemented in FFmpeg, patches welcome
AVERROR_PROTOCOL_NOT_FOUND = -(ord($F8) or (ord('P') shl 8) or (ord('R') shl 16) or (ord('O') shl 24)); ///< Protocol not found
AVERROR_STREAM_NOT_FOUND = -(ord($F8) or (ord('S') shl 8) or (ord('T') shl 16) or (ord('R') shl 24)); ///< 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.
*)
AVERROR_BUG2 = -(ord('B') or (ord('U') shl 8) or (ord('G') shl 16) or (ord(' ') shl 24));
(*
* 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
*)
function av_strerror(errnum: cint; errbuf: PAnsiChar; errbuf_size: size_t): cint;
cdecl; external av__util;
(**
* @}
*)
|
