windows下ffmpeg静态库使用出现未定义
1>LINK : warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library
1>LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
1>libavcodec.a(utils.o) : error LNK2019: unresolved external symbol _libiconv_open referenced in function _avcodec_decode_subtitle2
1>libavcodec.a(utils.o) : error LNK2019: unresolved external symbol _libiconv_close referenced in function _avcodec_decode_subtitle2
1>libavcodec.a(utils.o) : error LNK2019: unresolved external symbol _libiconv referenced in function _avcodec_decode_subtitle2
1>libavutil.a(display.o) : error LNK2019: unresolved external symbol _hypot referenced in function _av_display_rotation_get
1>libavutil.a(error.o) : error LNK2019: unresolved external symbol _strerror_r referenced in function _av_strerror
1>libmingwex.a(glob.o) : error LNK2019: unresolved external symbol _stricoll referenced in function _glob_match