doc/errno.txt
1f797a58
 The following table lists most error codes found in various operating
 systems supported by FFmpeg.
 
                              OS
 Code             Std    F  LBMWwb Text (YMMV)
 
 E2BIG            POSIX     ++++++  Argument list too long
 EACCES           POSIX     ++++++  Permission denied
 EADDRINUSE       POSIX     +++..+  Address in use
 EADDRNOTAVAIL    POSIX     +++..+  Cannot assign requested address
 EADV                       +.....  Advertise error
 EAFNOSUPPORT     POSIX     +++..+  Address family not supported
 EAGAIN           POSIX  +  ++++++  Resource temporarily unavailable
 EALREADY         POSIX     +++..+  Operation already in progress
 EAUTH                      .++...  Authentication error
 EBADARCH                   ..+...  Bad CPU type in executable
 EBADE                      +.....  Invalid exchange
 EBADEXEC                   ..+...  Bad executable
 EBADF            POSIX     ++++++  Bad file descriptor
 EBADFD                     +.....  File descriptor in bad state
 EBADMACHO                  ..+...  Malformed Macho file
 EBADMSG          POSIX     ++4...  Bad message
 EBADR                      +.....  Invalid request descriptor
 EBADRPC                    .++...  RPC struct is bad
 EBADRQC                    +.....  Invalid request code
 EBADSLT                    +.....  Invalid slot
 EBFONT                     +.....  Bad font file format
 EBUSY            POSIX  -  ++++++  Device or resource busy
 ECANCELED        POSIX     +++...  Operation canceled
 ECHILD           POSIX     ++++++  No child processes
 ECHRNG                     +.....  Channel number out of range
 ECOMM                      +.....  Communication error on send
 ECONNABORTED     POSIX     +++..+  Software caused connection abort
 ECONNREFUSED     POSIX  -  +++ss+  Connection refused
 ECONNRESET       POSIX     +++..+  Connection reset
 EDEADLK          POSIX     ++++++  Resource deadlock avoided
 EDEADLOCK                  +..++.  File locking deadlock error
 EDESTADDRREQ     POSIX     +++...  Destination address required
 EDEVERR                    ..+...  Device error
 EDOM             C89    -  ++++++  Numerical argument out of domain
 EDOOFUS                    .F....  Programming error
 EDOTDOT                    +.....  RFS specific error
 EDQUOT           POSIX     +++...  Disc quota exceeded
 EEXIST           POSIX     ++++++  File exists
 EFAULT           POSIX  -  ++++++  Bad address
 EFBIG            POSIX  -  ++++++  File too large
 EFTYPE                     .++...  Inappropriate file type or format
 EHOSTDOWN                  +++...  Host is down
 EHOSTUNREACH     POSIX     +++..+  No route to host
 EHWPOISON                  +.....  Memory page has hardware error
 EIDRM            POSIX     +++...  Identifier removed
 EILSEQ           C99       ++++++  Illegal byte sequence
 EINPROGRESS      POSIX  -  +++ss+  Operation in progress
 EINTR            POSIX  -  ++++++  Interrupted system call
 EINVAL           POSIX  +  ++++++  Invalid argument
 EIO              POSIX  +  ++++++  I/O error
 EISCONN          POSIX     +++..+  Socket is already connected
 EISDIR           POSIX     ++++++  Is a directory
 EISNAM                     +.....  Is a named type file
 EKEYEXPIRED                +.....  Key has expired
 EKEYREJECTED               +.....  Key was rejected by service
 EKEYREVOKED                +.....  Key has been revoked
 EL2HLT                     +.....  Level 2 halted
 EL2NSYNC                   +.....  Level 2 not synchronized
 EL3HLT                     +.....  Level 3 halted
 EL3RST                     +.....  Level 3 reset
 ELIBACC                    +.....  Can not access a needed shared library
 ELIBBAD                    +.....  Accessing a corrupted shared library
 ELIBEXEC                   +.....  Cannot exec a shared library directly
 ELIBMAX                    +.....  Too many shared libraries
 ELIBSCN                    +.....  .lib section in a.out corrupted
 ELNRNG                     +.....  Link number out of range
 ELOOP            POSIX     +++..+  Too many levels of symbolic links
 EMEDIUMTYPE                +.....  Wrong medium type
 EMFILE           POSIX     ++++++  Too many open files
 EMLINK           POSIX     ++++++  Too many links
 EMSGSIZE         POSIX     +++..+  Message too long
 EMULTIHOP        POSIX     ++4...  Multihop attempted
 ENAMETOOLONG     POSIX  -  ++++++  Filen ame too long
 ENAVAIL                    +.....  No XENIX semaphores available
 ENEEDAUTH                  .++...  Need authenticator
 ENETDOWN         POSIX     +++..+  Network is down
 ENETRESET        SUSv3     +++..+  Network dropped connection on reset
 ENETUNREACH      POSIX     +++..+  Network unreachable
 ENFILE           POSIX     ++++++  Too many open files in system
 ENOANO                     +.....  No anode
 ENOATTR                    .++...  Attribute not found
 ENOBUFS          POSIX  -  +++..+  No buffer space available
 ENOCSI                     +.....  No CSI structure available
 ENODATA          XSR       +N4...  No message available
 ENODEV           POSIX  -  ++++++  No such device
 ENOENT           POSIX  -  ++++++  No such file or directory
 ENOEXEC          POSIX     ++++++  Exec format error
 ENOFILE                    ...++.  No such file or directory
 ENOKEY                     +.....  Required key not available
 ENOLCK           POSIX     ++++++  No locks available
 ENOLINK          POSIX     ++4...  Link has been severed
 ENOMEDIUM                  +.....  No medium found
 ENOMEM           POSIX     ++++++  Not enough space
 ENOMSG           POSIX     +++..+  No message of desired type
 ENONET                     +.....  Machine is not on the network
 ENOPKG                     +.....  Package not installed
 ENOPROTOOPT      POSIX     +++..+  Protocol not available
 ENOSPC           POSIX     ++++++  No space left on device
 ENOSR            XSR       +N4...  No STREAM resources
 ENOSTR           XSR       +N4...  Not a STREAM
 ENOSYS           POSIX  +  ++++++  Function not implemented
 ENOTBLK                    +++...  Block device required
 ENOTCONN         POSIX     +++..+  Socket is not connected
 ENOTDIR          POSIX     ++++++  Not a directory
 ENOTEMPTY        POSIX     ++++++  Directory not empty
 ENOTNAM                    +.....  Not a XENIX named type file
 ENOTRECOVERABLE  SUSv4  -  +.....  State not recoverable
 ENOTSOCK         POSIX     +++..+  Socket operation on non-socket
 ENOTSUP          POSIX     +++...  Operation not supported
 ENOTTY           POSIX     ++++++  Inappropriate I/O control operation
 ENOTUNIQ                   +.....  Name not unique on network
 ENXIO            POSIX     ++++++  No such device or address
 EOPNOTSUPP       POSIX     +++..+  Operation not supported (on socket)
 EOVERFLOW        POSIX     +++..+  Value too large to be stored in data type
 EOWNERDEAD       SUSv4     +.....  Owner died
 EPERM            POSIX  -  ++++++  Operation not permitted
 EPFNOSUPPORT               +++..+  Protocol family not supported
 EPIPE            POSIX  -  ++++++  Broken pipe
 EPROCLIM                   .++...  Too many processes
 EPROCUNAVAIL               .++...  Bad procedure for program
 EPROGMISMATCH              .++...  Program version wrong
 EPROGUNAVAIL               .++...  RPC prog. not avail
 EPROTO           POSIX     ++4...  Protocol error
 EPROTONOSUPPORT  POSIX  -  +++ss+  Protocol not supported
 EPROTOTYPE       POSIX     +++..+  Protocol wrong type for socket
 EPWROFF                    ..+...  Device power is off
 ERANGE           C89    -  ++++++  Result too large
 EREMCHG                    +.....  Remote address changed
 EREMOTE                    +++...  Object is remote
 EREMOTEIO                  +.....  Remote I/O error
 ERESTART                   +.....  Interrupted system call should be restarted
 ERFKILL                    +.....  Operation not possible due to RF-kill
 EROFS            POSIX     ++++++  Read-only file system
 ERPCMISMATCH               .++...  RPC version wrong
 ESHLIBVERS                 ..+...  Shared library version mismatch
 ESHUTDOWN                  +++..+  Cannot send after socket shutdown
 ESOCKTNOSUPPORT            +++...  Socket type not supported
 ESPIPE           POSIX     ++++++  Illegal seek
 ESRCH            POSIX     ++++++  No such process
 ESRMNT                     +.....  Srmount error
 ESTALE           POSIX     +++..+  Stale NFS file handle
 ESTRPIPE                   +.....  Streams pipe error
 ETIME            XSR       +N4...  Stream ioctl timeout
 ETIMEDOUT        POSIX  -  +++ss+  Connection timed out
 ETOOMANYREFS               +++...  Too many references: cannot splice
 ETXTBSY          POSIX     +++...  Text file busy
 EUCLEAN                    +.....  Structure needs cleaning
 EUNATCH                    +.....  Protocol driver not attached
 EUSERS                     +++...  Too many users
 EWOULDBLOCK      POSIX     +++..+  Operation would block
 EXDEV            POSIX     ++++++  Cross-device link
 EXFULL                     +.....  Exchange full
 
 Notations:
 
 F: used in FFmpeg (-: a few times, +: a lot)
 
 SUSv3: Single Unix Specification, version 3
 SUSv4: Single Unix Specification, version 4
 XSR: XSI STREAMS (obsolete)
 
 OS: availability on some supported operating systems
 L: GNU/Linux
 B: BSD (F: FreeBSD, N: NetBSD)
 M: MacOS X
 W: Microsoft Windows (s: emulated with winsock, see libavformat/network.h)
 w: Mingw32 (3.17) and Mingw64 (2.0.1)
 b: BeOS