make前指定编译输出路径 --prefix=/home/oye/ffmpeg-4.2.2-build

./configure --prefix=/home/oye/ffmpeg-4.2.2-build \
--enable-shared \
--enable-libfdk-aac \
--enable-gpl \
--enable-nonfree \
--enable-postproc \
--enable-avfilter \
--enable-pthreads \
--enable-libmp3lame \
--enable-libtheora \
--enable-libvorbis \
--enable-libx264 \
--enable-libxvidcore \
--enable-decoder=libx264 \
--enable-encoder=libx264 

make

makeinstall

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--prefix 

/home/oye/ffmpeg-4.2.2-build 为 make install 后编译安装结果的输出路径.