Simple Bash Script to Install FFMPEG + Required Libraries in Ubuntu 14.04

ffmpeg_installer

#!/bin/bash

# Bash Script to Install FFMPEG in Ubuntu 14.04
# Ref: http://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu
# Opsional: install exiftool: apt-get install libimage-exiftool-perl
#
# Author: Edi Septriyanto http://masedi.net <hi@masedi.net>
########################################################################
CURDIR=$(pwd)

echo "Install Pre-requisites libraries..."
sleep 3
sudo apt-get update
sudo apt-get -y install autoconf automake build-essential libass-dev libfreetype6-dev libgpac-dev \
  libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libx11-dev \
  libxext-dev libxfixes-dev libimage-exiftool-perl pkg-config texi2html zlib1g-dev git

mkdir $CURDIR/ffmpeg_sources
mkdir $CURDIR/ffmpeg_build

## Yasm
clear
echo "Install Yasm library..."
sleep 3
#sudo apt-get install yasm
cd $CURDIR/ffmpeg_sources
if [ ! -d yasm ]; then
	git clone https://github.com/yasm/yasm.git yasm
fi
cd yasm
autoreconf -fiv
./configure --prefix="$CURDIR/ffmpeg_build" --bindir="/usr/local/bin"
make
make install
ldconfig
make distclean
export "PATH=$PATH:/usr/local/bin"

## libx264 - H.264 video encoder
clear
echo "Install libx264 -  H.264 video encoder library..."
sleep 3
cd $CURDIR/ffmpeg_sources
#wget http://download.videolan.org/pub/x264/snapshots/last_x264.tar.bz2
if [ ! -d x264 ]; then 
	git clone http://git.videolan.org/git/x264.git x264
fi
cd x264
./configure --prefix="$CURDIR/ffmpeg_build" --bindir="/usr/local/bin" --enable-static
make
make install
ldconfig
make distclean

## libfdk-aac - AAC audio encoder
clear
echo "Install libfdk-aac - AAC audio encoder library..."
sleep 3
cd $CURDIR/ffmpeg_sources
#wget -O fdk-aac.zip https://github.com/mstorsjo/fdk-aac/zipball/master
if [ ! -d fdkaac ]; then 
	git clone https://github.com/mstorsjo/fdk-aac.git fdkaac
fi
cd fdkaac
autoreconf -fiv
./configure --prefix="$CURDIR/ffmpeg_build" --disable-shared
make
make install
ldconfig
make distclean

## libmp3lame - MP3 audio encoder
clear
echo "Install libmp3lame - MP3 audio encoder library..."
sleep 3
sudo apt-get install -y libmp3lame-dev
#sudo apt-get install nasm
#cd $CURDIR/ffmpeg_sources
#if [ ! -d lame-3.995.5 ]; then 
#	wget http://sourceforge.net/projects/lame/files/latest/download -O libmp3lame.tar.gz
#	tar zxf libmp3lame.tar.gz
#fi
#cd lame-3.995.5
#./configure --prefix="$CURDIR/ffmpeg_build" --enable-nasm --disable-shared
#make
#make install
#make distclean

## libopus - Opus audio decoder and encoder
clear
echo "Install libopus - Opus audio decoder and encoder library..."
sleep 3
#sudo apt-get install libopus-dev
#https://www.opus-codec.org/development/
cd $CURDIR/ffmpeg_sources
if [ ! -d libopus ]; then
	git clone https://git.xiph.org/opus.git libopus
fi
cd libopus
./autogen.sh
./configure --prefix="$CURDIR/ffmpeg_build" --enable-static --enable-shared
make
make install
ldconfig
make distclean

## libvorbis
clear
echo "Install libvorbis - Standard audio encoder and decoder library..."
sleep 3
sudo apt-get install -y libvorbis-dev

## libvpx - VP8/VP9 video encoder and decoder
clear
echo "Install libvpx - VP8/VP9 video encoder and decoder library..."
sleep 3
cd $CURDIR/ffmpeg_sources
if [ ! -d libvpx ]; then
	git clone https://chromium.googlesource.com/webm/libvpx libvpx
fi
cd libvpx
./configure --prefix="$CURDIR/ffmpeg_build" --disable-examples
make
make install
make clean

## ffmpeg
clear
echo "Install FFMPeg..."
sleep 3
cd $CURDIR/ffmpeg_sources
if [ ! -d ffmpeg ]; then
	git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg
fi
cd ffmpeg
PKG_CONFIG_PATH="$CURDIR/ffmpeg_build/lib/pkgconfig"
export PKG_CONFIG_PATH
./configure --prefix="$CURDIR/ffmpeg_build" --extra-cflags="-I$CURDIR/ffmpeg_build/include" \
   --extra-ldflags="-L$CURDIR/ffmpeg_build/lib" --bindir="/usr/local/bin" --extra-libs="-ldl" --enable-gpl \
   --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus \
   --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
make
make install
make distclean
hash -r

## Updating ffmpeg
#rm -rf ~/ffmpeg_build ~/ffmpeg_sources ~/bin/{ffmpeg,ffprobe,ffserver,vsyasm,x264,yasm,ytasm}

## Reverting Changes Made by This Guide
#rm -rf ~/ffmpeg_build ~/ffmpeg_sources ~/bin/{ffmpeg,ffprobe,ffserver,vsyasm,x264,yasm,ytasm}
#sudo apt-get autoremove autoconf automake build-essential libass-dev libfreetype6-dev libgpac-dev \
#  libmp3lame-dev libopus-dev libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev \
#  libvorbis-dev libvpx-dev libx11-dev libxext-dev libxfixes-dev texi2html zlib1g-dev
#sed -i '/ffmpeg_build/c\' ~/.manpath
#hash -r