ErrorCode

#define EPERM        1 Operation not permitted
#define EIO      5  I/O error
File or network related operation errors: -1004
AVERROR_BSF_NOT_FOUND: Bitstream filter not found : -1179861752
AVERROR_BUG: Internal bug, should not have happened : -558323010
AVERROR_BUFFER_TOO_SMALL: Buffer too small : -1397118274
AVERROR_DECODER_NOT_FOUND: Decoder not found : -1128613112
AVERROR_DEMUXER_NOT_FOUND: Demuxer not found : -1296385272
AVERROR_ENCODER_NOT_FOUND: Encoder not found : -1129203192
AVERROR_EOF: End of file : -541478725
AVERROR_EXIT: Immediate exit requested : -1414092869
AVERROR_EXTERNAL: Generic error in an external library : -542398533
AVERROR_FILTER_NOT_FOUND: Filter not found : -1279870712
AVERROR_INVALIDDATA: Invalid data found when processing input : -1094995529
AVERROR_MUXER_NOT_FOUND: Muxer not found : -1481985528
AVERROR_OPTION_NOT_FOUND: Option not found : -1414549496
AVERROR_PATCHWELCOME: Not yet implemented in FFmpeg, patches welcome : -1163346256
AVERROR_PROTOCOL_NOT_FOUND: Protocol not found : -1330794744
AVERROR_BUG2: Internal bug, should not have happened : -541545794
AVERROR_UNKNOWN: Unknown error occurred : -1313558101
AVERROR_EXPERIMENTAL: Experimental feature : -733130664