AV_GCC_VERSION_AT_LEAST 30 3rdparty/include/ffmpeg_/libavutil/attributes.h # define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y) AV_GCC_VERSION_AT_LEAST 32 3rdparty/include/ffmpeg_/libavutil/attributes.h # define AV_GCC_VERSION_AT_LEAST(x,y) 0