Install ffmpeg on Ubuntu 16.04 - http://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

install_ffmpeg_ubuntu.sh

#!/bin/bash

# Usage example:
# /usr/local/bin/ffmpeg -i test.mp4 -acodec aac -strict experimental -ac 2 -ab 128k -vcodec libx264 -preset slow -f mp4 -s 640x480 test-out.mp4

mkdir -p ~/ffmpeg_sources ~/bin
rm -rf ~/ffmpeg_build ~/bin/{ffmpeg,ffprobe,ffplay,ffserver,x264,x265

apt-get update -qq && apt-get -y install \
  autoconf \
  automake \
  build-essential \
  cmake \
  git \
  libass-dev \
  libfreetype6-dev \
  libsdl2-dev \
  libtheora-dev \
  libtool \
  libva-dev \
  libvdpau-dev \
  libvorbis-dev \
  libxcb1-dev \
  libxcb-shm0-dev \
  libxcb-xfixes0-dev \
  mercurial \
  pkg-config \
  texinfo \
  wget \
  zlib1g-dev

cd ~/ffmpeg_sources && \
wget http://www.nasm.us/pub/nasm/releasebuilds/2.13.02/nasm-2.13.02.tar.bz2 && \
tar xjvf nasm-2.13.02.tar.bz2 && \
cd nasm-2.13.02 && \
./autogen.sh && \
PATH="$HOME/bin:$PATH" ./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" && \
make && \
make install

cd ~/ffmpeg_sources && \
wget -O yasm-1.3.0.tar.gz http://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz && \
tar xzvf yasm-1.3.0.tar.gz && \
cd yasm-1.3.0 && \
./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" && \
make && \
make install

cd ~/ffmpeg_sources && \
git -C x264 pull 2> /dev/null || git clone --depth 1 http://git.videolan.org/git/x264 && \
cd x264 && \
PATH="$HOME/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" --enable-static && \
PATH="$HOME/bin:$PATH" make && \
make install

cd ~/ffmpeg_sources && \
if cd x265 2> /dev/null; then hg pull && hg update; else hg clone https://bitbucket.org/multicoreware/x265; fi && \
cd x265/build/linux && \
PATH="$HOME/bin:$PATH" cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX="$HOME/ffmpeg_build" -DENABLE_SHARED:bool=off ../../source && \
PATH="$HOME/bin:$PATH" make && \
make install

cd ~/ffmpeg_sources && \
git -C libvpx pull 2> /dev/null || git clone --depth 1 https://chromium.googlesource.com/webm/libvpx.git && \
cd libvpx && \
PATH="$HOME/bin:$PATH" ./configure --prefix="$HOME/ffmpeg_build" --disable-examples --disable-unit-tests --enable-vp9-highbitdepth --as=yasm && \
PATH="$HOME/bin:$PATH" make && \
make install

cd ~/ffmpeg_sources && \
git -C fdk-aac pull 2> /dev/null || git clone --depth 1 https://github.com/mstorsjo/fdk-aac && \
cd fdk-aac && \
autoreconf -fiv && \
./configure --prefix="$HOME/ffmpeg_build" --disable-shared && \
make && \
make install

cd ~/ffmpeg_sources && \
wget -O lame-3.100.tar.gz http://downloads.sourceforge.net/project/lame/lame/3.100/lame-3.100.tar.gz && \
tar xzvf lame-3.100.tar.gz && \
cd lame-3.100 && \
PATH="$HOME/bin:$PATH" ./configure --prefix="$HOME/ffmpeg_build" --bindir="$HOME/bin" --disable-shared --enable-nasm && \
PATH="$HOME/bin:$PATH" make && \
make install

cd ~/ffmpeg_sources && \
git -C opus pull 2> /dev/null || git clone --depth 1 https://github.com/xiph/opus.git && \
cd opus && \
./autogen.sh && \
./configure --prefix="$HOME/ffmpeg_build" --disable-shared && \
make && \
make install

cd ~/ffmpeg_sources && \
wget -O ffmpeg-snapshot.tar.bz2 http://ffmpeg.org/releases/ffmpeg-snapshot.tar.bz2 && \
tar xjvf ffmpeg-snapshot.tar.bz2 && \
cd ffmpeg && \
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" \
  --extra-libs="-lpthread -lm" \
  --bindir="$HOME/bin" \
  --enable-gpl \
  --enable-libass \
  --enable-libfdk-aac \
  --enable-libfreetype \
  --enable-libmp3lame \
  --enable-libopus \
  --enable-libtheora \
  --enable-libvorbis \
  --enable-libvpx \
  --enable-libx264 \
  --enable-libx265 \
  --enable-nonfree && \
PATH="$HOME/bin:$PATH" make && \
make install
hash -r

cd ~/bin
cp * /usr/local/bin/