DEFAULT            41 libavcodec/options.c #define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
DEFAULT           407 libavcodec/options.c #undef DEFAULT
DEFAULT            37 libavformat/options.c #define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
DEFAULT            64 libavformat/options.c #undef DEFAULT
DEFAULT            31 libswscale/swscale_avoption.c #define DEFAULT 0