更新最新版不ffmpeg代码之后，在mingw下编译总是会莫名其妙出现一下的错误
../libavutil/libm.h:62: error: static declaration of 'lrint' follows non-static declaration ../libavutil/libm.h:69: error: static declaration of 'lrintf' follows non-static declaration ../libavutil/libm.h:76: error: static declaration of 'round' follows non-static declaration ../libavutil/libm.h:83: error: static declaration of 'roundf' follows non-static declaration ./libavutil/libm.h:90: error: static declaration of 'truncf' follows non-static declaration
解决办法在config.h搜索lrint、lrintf、round、roundf等对于的字符
#define HAVE_LLRINT 1 #define HAVE_LLRINTF 1 #define HAVE_LRINT 1 #define HAVE_LRINTF 1 #define HAVE_ROUND 1 #define HAVE_ROUNDF 1
将对于的值改为1即可