以下ffmpeg错误代码及翻译是本人遇到或发现后整理出来的，不保证包含全部错误代码
EPERM(不允许操作,无相应权限) = -1
ENOENT(文件或目录不存在) = -2
ESRCH(线程不存在) = -3
EINVAL(参数错误) = -22
AVERROR_BSF_NOT_FOUND (找不到Averror BSF的值)= -1179861752
AVERROR_BUG = -558323010
AVERROR_DECODER_NOT_FOUND = -1128613112
AVERROR_DEMUXER_NOT_FOUND = -1296385272
AVERROR_ENCODER_NOT_FOUND = -1129203192
AVERROR_EOF = -541478725
AVERROR_EXIT = -1414092869
AVERROR_FILTER_NOT_FOUND = -1279870712
AVERROR_INVALIDDATA = -1094995529
AVERROR_MUXER_NOT_FOUND = -1481985528
AVERROR_OPTION_NOT_FOUND = -1414549496
AVERROR_PATCHWELCOME = -1163346256
AVERROR_PROTOCOL_NOT_FOUND = -1330794744
AVERROR_STREAM_NOT_FOUND = -1381258232
AVERROR_BUG2 = -541545794
AVERROR_UNKNOWN = -1313558101
持续更新~