AssertionError: Cannot find installation of real FFmpeg (which comes with ffprobe).

1、参考博客：https://www.cnblogs.com/freeweb/p/6897907.html

2、可以看到解压的文件夹下有一个configure文件，使用notepad或其他的工具打开它，搜索 build settings

将下面的代码修改如下（参考博客：02.最简单的在Linux下的编译ffmpeng生成.so库_A_thousand_miles的博客-优快云博客）：

# build settings
SHFLAGS='-shared -Wl,-soname,$$(@F)'
LIBPREF="lib"
LIBSUF=".a"
FULLNAME='$(NAME)$(BUILDSUF)'
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
SLIBPREF="lib"
SLIBSUF=".so"
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
LIB_INSTALL_EXTRA_CMD='$$(RANLIB)"$(LIBDIR)/$(LIBNAME)"'
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
SLIB_INSTALL_LINKS='$(SLIBNAME)'

3、加FFmpeg到Linux环境变量中（下述两句）。参考博客：https://www.cnblogs.com/toward-the-sun/p/8030238.html：

export  PATH="/monchickey/ffmpeg/bin:$PATH"

export LD_LIBRARY_PATH="/monchickey/ffmpeg/lib64:$LD_LIBRARY_PATH"

4、验证：

任意路径下(出现下图即为正确)：ffmpeg -version

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