install_ffmpeg.sh

#!/bin/bash
#
#  install_ffmpeg
#
#  Installs the latest ffmpeg and its dependencies on Debian Wheezy for the Raspberry Pi 2
#  Inspired from https://gist.github.com/faleev/3435377
#
#  Author: Beau Hastings <[email protected]>

if [ $(id -u) -ne 0 ]; then
    echo "This script requires root. Try 'sudo $0'"
    exit 1
fi

user="$SUDO_USER"
[[ -z "$user" ]] && user=$(id -un)

home="$(eval echo ~$user)"

# Borrowed from RetroPie:
# clones or updates the sources of a repository $2 into the directory $1
function gitPullOrClone() {
    local dir="$1"
    local repo="$2"
    local branch="$3"
    [[ -z "$branch" ]] && branch="master"

    mkdir -p "$dir"

    # to work around a issue with git hanging in a qemu-arm-static chroot we can use a github created archive
    if [[ $__chroot -eq 1 ]] && [[ "$repo" =~ github ]] && [[ ! "$repo" =~ picodrive ]]; then
        local archive=${repo/.git/}
        archive="${archive/git:/https:}/archive/$branch.tar.gz"
        wget -O- -q "$archive" | tar -xvz --strip-components=1 -C "$dir"
        return
    fi

    if [[ -d "$dir/.git" ]]; then
        pushd "$dir" > /dev/null
        git pull > /dev/null
        popd > /dev/null
    else
        local git="git clone"
        [[ "$repo" =~ github ]] && git+=" --depth 1"
        [[ "$branch" != "master" ]] && git+=" --branch $branch"
        echo "$git \"$repo\" \"$dir\""
        $git "$repo" "$dir"
    fi
}

function sources_x264() {
    gitPullOrClone "$home/x264" git://git.videolan.org/x264
}

function build_x264() {
    cd "$home/x264"
    ./configure --enable-static
    make
}

function install_x264() {
    sudo checkinstall --pkgname=x264 --backup=no --deldoc=yes --fstrans=no --default \
        --pkgversion="3:$(./version.sh | awk -F'[" ]' '/POINT/{print $4"+git"$5}')" \
}

function sources_aac() {
    wget -O- -q http://downloads.sourceforge.net/opencore-amr/fdk-aac-0.1.0.tar.gz | tar -xvz -C "$home/fdk-aac-0.1.0"
}

function build_aac() {
    cd "$home/fdk-aac-0.1.0"
    ./configure
    make
}

function install_aac() {
    sudo checkinstall --pkgname=fdk-aac --pkgversion="0.1.0" \
        --backup=no --deldoc=yes --fstrans=no --default
}

function sources_vp8() {
    cd "$home/libvpx"
    gitPullOrClone "$home/libvpx" https://chromium.googlesource.com/webm/libvpx
}

function build_vp8() {
    ./configure
    make
}

function install_vp8() {
    sudo checkinstall --pkgname=libvpx --pkgversion="1:$(date +%Y%m%d%H%M)-git" \
        --backup=no --deldoc=yes --fstrans=no --default
}

function sources_ffmpeg() {
    gitPullOrClone "$home/ffmpeg" git://source.ffmpeg.org/ffmpeg
}

function build_ffmpeg() {
    cd "$home/ffmpeg"
    ./configure --extra-cflags="-mcpu=cortex-a8 -mfpu=neon" --enable-gpl --enable-libmp3lame \
        --enable-libopencore-amrnb --enable-libopencore-amrwb \
        --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx \
        --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
    make
}

function install_ffmpeg() {
    sudo checkinstall --pkgname=ffmpeg --pkgversion="5:$(date +%Y%m%d%H%M)-git" \
        --backup=no --deldoc=yes --fstrans=no --default
}

# Remove any existing packages:
sudo apt-get -y remove ffmpeg x264 libav-tools libvpx-dev libx264-dev

# Get the dependencies (Ubuntu Server or headless users):
sudo apt-get update
sudo apt-get -y install build-essential checkinstall git libavcodec-extra libgpac-dev \
    libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev librtmp-dev libtheora-dev \
    libvorbis-dev pkg-config texi2html yasm zlib1g-dev libx264-dev

# Install x264
sources_x264
build_x264
install_x264

# Install AAC audio decoder
sources_aac
build_aac
install_aac

# Install VP8 video encoder and decoder
sources_vp8
build_vp8
install_vp8

# Installing FFmpeg
sources_ffmpeg
build_ffmpeg
install_ffmpeg
hash x264 ffmpeg ffplay ffprobe