黄靖翔的博客

https://www.cnblogs.com/Kassadin/p/13149434.html

https://cloud.tencent.com/developer/article/1353015

linux编译ffmpeg 下载ndk(r21) 下载ffmpeg4.2.3 解压到虚拟机Ubuntu16.04的/home/user/ffmpeg下 进入已解压的ffmpeg文件目录，修改configure文件 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)' LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"' SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)

https://www.jianshu.com/p/eece4167999d

sudo passwd root 输入密码 确认密码 转换到root角色 su -