c++ - How to install libavcodec and libavutil from its source in linux -

ffmpeg providing libavutil , libavcodec libraries. while compiling , installing ffmpeg described @ https://trac.ffmpeg.org/wiki/compilationguide/ubuntu can find libavcodec , libavutil folders in ffmpeg source folder. want install these libraries use them in c++ programs. there no makefiles in these folders. how can install them?

you type make install in root (top-level) folder, contains install target.