AV_GCC_VERSION_AT_LEAST   30 libavutil/attributes.h #    define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y))
AV_GCC_VERSION_AT_LEAST   33 libavutil/attributes.h #    define AV_GCC_VERSION_AT_LEAST(x,y) 0