# ./configure --prefix=/home/enc3/ffmpeg_build --extra-cflags=-I/home/enc3/ffmpeg_build/include
 --extra-ldflags=-L/home/enc3/ffmpeg_build/lib --bindir=/home/enc3/bin --extra-libs=-ldl
 --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus
 --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree