build ffmpeg on debian 8 (not tested)

build_ffmpeg.sh

apt-get -y install autoconf automake build-essential libass-dev libfreetype6-dev   libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev libxcb1-dev libxcb-shm0-dev   libxcb-xfixes0-dev pkg-config texinfo zlib1g-dev

wget https://ffmpeg.org/releases/ffmpeg-3.1.7.tar.gz
mkdir -p /opt/ffmpeg/bin
mv /tmp/ffmpeg-3.1.7.tar.gz /root/
ls
tar xzf ffmpeg-3.1.7.tar.gz
cd ffmpeg-3.1.7/
ls
apt-get install yasm libx264-dev libmp3lame-dev libopus-dev libvpx-dev
cd ..
mkdir bin
mkdir -p ffmpeg_build/lib/pkgconfig
mkdir -p ffmpeg_build/include
cd ffmpeg-3.1.7/
wget -O fdk-aac.tar.gz https://github.com/mstorsjo/fdk-aac/tarball/master
apt-get install libvo-aacenc-dev
tar xzvf fdk-aac.tar.gz 
cd mstorsjo-fdk-aac-*
autoreconf -fiv
./configure --prefix="$HOME/ffmpeg_build" --disable-shared
make
make install
make distclean
hash -r
cd ..
PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure   --prefix="$HOME/ffmpeg_build"   --pkg-config-flags="--static"   --extra-cflags="-I$HOME/ffmpeg_build/include"   --extra-ldflags="-L$HOME/ffmpeg_build/lib"   --bindir="$HOME/bin"   --enable-gpl   --enable-libass   --enable-libfdk-aac   --enable-libfreetype   --enable-libmp3lame   --enable-libopus   --enable-libtheora   --enable-libvorbis   --enable-libvpx   --enable-libx264   --enable-nonfree
PATH="$HOME/bin:$PATH" make

make install
cd ../bin/
ls
mkdir /opt/ffmpeg/bin
cp * /opt/ffmpeg/bin/