v4l2驱动摄像头 出现错误UINT64_C' was not dec

编译时报错如下：

/usr/include/libavutil/common.h:168: 错误:'UINT64_C' was not declared in this scope

解决：

在common.h里面添加#ifndef UINT64_C


#define UINT64_C(value)__CONCAT(value,ULL)


#endif

视图如下：

v4l2驱动摄像头 出现错误UINT64_C' was not declared in this scope 解决