Ubuntu 10-bit HEVC Transcoding Tools -- Contains a script to install x265-10bit-git, libass-git, ffmpeg-git and bomi-git; another for updating everything; as well as scripts for transcoding videos with ffmpeg. Transcoding scripts require the fish shell to be installed.

transcode-install.sh

#!/bin/bash
sourcedir="$HOME/.local/src/"
mkdir "$sourcedir"
export CFLAGS='-march=native -O3 -pipe -fstack-protector -Wall'
export CXXFLAGS='-march=native -O3 -pipe -fstack-protector -Wall'

function install-dependencies() {
	# Install build tools and Mesa VDPAU support.
	sudo apt-fast install -y cmake yasm autoconf build-essential mesa-vdpau-drivers \
		libvdpau-va-gl1
	
	# Remove Conflicts
	sudo apt-get autoremove libass{5,-dev} libx265{-43,-dev} -y
	
	# These packages are removed for some reason when removing libass from Ubuntu.
	sudo apt-fast install -y freepats gstreamer1.0-plugins-bad-faad \
		gstreamer1.0-plugins-bad-videoparsers libcdaudio1 libdca0 \
		libdirac-encoder0 libdirectfb-1.2-9 libfluidsynth1 libgme0 \
		libgstreamer-plugins-bad0.10-0 libgstreamer-plugins-bad1.0-0 libkate1 libmimic0 \
		libmms0 libmpg123-0 libofa0 libopencv-calib3d2.4 libopencv-contrib2.4 \
		libopencv-features2d2.4 libopencv-flann2.4 libopencv-legacy2.4 \
		libopencv-ml2.4 libopencv-objdetect2.4 libopencv-video2.4 libslv2-9 \
		libsoundtouch0 libspandsp2 libsrtp0 libwildmidi-config libwildmidi1 libzbar0 \
		libzvbi-common libzvbi0
	
	# Development Libraries
	sudo apt-fast install -y lib{pulse,asound2,jack}-dev \
		lib{x264,vpx,theora,opus,vorbis,fdk-aac}-dev \
		lib{freetype6,fribidi,fontconfig1,harfbuzz,enca}-dev \
		lib{dvdread,dvdnav,bluray,cdio,cdio-cdda,cdio-paranoia,smbclient}-dev \
		lib{va,vdpau}-dev
		
	# X11 Libs
	sudo apt-fast install lib{x11,xcb-icccm4,xcb-screensaver0,xcb-randr0}-dev \
		lib{xcb-xtest0,xv,xrandr,xfixes,x11-xcb}-dev -y
		
	## Bomi Development Libraries
	sudo apt-fast install qt5-default qttools5-dev-tools qtquick1-5-dev \
		lib{qt5svg5,qt5x11extras5,systemd,glib2.0}-dev \
		libbz2-dev qtdeclarative5-dev -y
		
	# Bomi Dependencies
	sudo apt-fast install qtdeclarative5-controls-plugin -y
}

## Compiles the source code, packages it into a deb and cleans up compiled files
## from the source tree.
function package-deb() {
	make -j9
	sudo checkinstall --pkgname "$1" --pkgversion "$2" --provides "$3" -y
	make distclean; make clean
}

## Functions for downloading the latest git of each respective project.
function download-x265() {
	git clone https://github.com/videolan/x265
}

function download-ffmpeg() {
	git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg
}

function download-libass() {
	git clone https://github.com/libass/libass/
}

function download-bomi() {
	git clone https://github.com/xylosper/bomi
}

## Builds the latest version of the libass subtitle library, which is needed by bomi.
function build-libass() {
	cd "${sourcedir}/libass"
	./autogen.sh; ./configure prefix=/usr
	package-deb "libass-git" "$(git rev-list --count HEAD)" "libass5, libass-dev"
}

## Bulds the latest version of x265 compiled with 10-bit encode support.
function build-x265() {
	cd "${sourcedir}x265/build/linux"
	sudo apt-fast autoremove libx265{-43,-dev} -y # Conflicts with ffmpeg
	[[ $(arch) == x86_64 ]] && LDFLAGS+=',-z,noexecstack'
	cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/usr ../../source -DHIGH_BIT_DEPTH=1
	package-deb "x265-10bit" "$(git rev-list --count HEAD)" "x265"
}	

## Builds the latest version of ffmpeg with libass-git and x265-10bit-git support.
function build-ffmpeg() {
	cd ${sourcedir}ffmpeg
	./configure --prefix=/usr --enable-gpl --enable-nonfree --enable-libass --enable-libfreetype --enable-libopus --enable-libvorbis --enable-libfdk-aac --enable-libx265 --enable-libx264 --enable-libvpx --enable-libtheora --enable-libbluray --enable-libcdio --enable-libfreetype --enable-libfribidi --enable-libsmbclient --enable-version3 --enable-x11grab --extra-cflags="-march=native -O3" --extra-cxxflags="-march=native -O3"
	package-deb "ffmpeg-git" "$(git rev-list --count HEAD)" "ffmpeg"
}

## Builds the latest git of Bomi using the version of ffmpeg that we compiled earlier,
## and with all features enabled. Please report missing features.
function build-bomi() {
	cd "${sourcedir}bomi"
	./download-libchardet
	./build-libchardet
	./configure --prefix=/usr/local
	package-deb "bomi-git" "$(git rev-list --count HEAD)" "bomi"
}

function main() {
	cd "$sourcedir"
	install-dependencies
	download-265; download-ffmpeg; download-libass
	build-libass; build-x265; build-ffmpeg
	download-bomi; build-bomi ## Optional
}

main

transcode-update.sh

#!/bin/bash
sourcedir="$HOME/.local/src/"
mkdir $sourcedir
export CFLAGS='-march=native -O3 -pipe -fstack-protector -Wall'
export CXXFLAGS='-march=native -O3 -pipe -fstack-protector -Wall'

function package-deb() {
	make -j9
	sudo checkinstall --pkgname "$1" --pkgversion "$2" --provides "$3" -y
	make distclean; make clean
}

function update-libass() {
	cd "${sourcedir}libass"; git pull
	./autogen.sh; ./configure prefix=/usr
	package-deb "libass-git" "$(git rev-list --count HEAD)" "libass5, libass-dev"
}

function update-x265() {
	cd "${sourcedir}x265"; git pull
	cd "${sourcedir}x265/build/linux"
	[[ $(arch) == x86_64 ]] && LDFLAGS+=',-z,noexecstack'
	cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/usr ../../source -DHIGH_BIT_DEPTH=1
	package-deb "x265-10bit" "$(git rev-list --count HEAD)" "x265"
}	

function update-ffmpeg() {
	cd "${sourcedir}ffmpeg"; git pull
	./configure --prefix=/usr --enable-gpl --enable-nonfree --enable-libass --enable-libfreetype --enable-libopus --enable-libvorbis --enable-libfdk-aac --enable-libx265 --enable-libx264 --enable-libvpx --enable-libtheora --enable-libbluray --enable-libcdio --enable-libfreetype --enable-libfribidi --enable-libsmbclient --enable-version3 --enable-x11grab --extra-cflags="-march=native -O3" --extra-cxxflags="-march=native -O3"
	package-deb "ffmpeg-git" "$(git rev-list --count HEAD)" "ffmpeg"
}


function update-bomi() {
	cd "${sourcedir}bomi"; git pull
	./download-libchardet; ./build-libchardet
	./configure --prefix=/usr/local
	package-deb "bomi-git" "$(git rev-list --count HEAD)" "bomi"
}

sudo apt-fast update; sudo apt-fast dist-upgrade -y
update-libass
update-x265
update-ffmpeg
update-bomi ## Optional

transcode-x264-hardware.fish

#!/usr/bin/fish
# Gets a list of all videos in the current directory and subdirectory.
function get_video_list
	find * -type f -name \*.mkv
end

# Utilizes ffmpeg to transcode the current input video, $1, with Opus audio and
# H.265 video. It receives a preset parameter, "$2", and a CRF parameter, "$3",
# and will write the newly-transcoded videos to the transcoded directory.
function transcode
	ffmpeg -i "$argv[1]" -c:a libopus -c:v libx264 -profile:v high -level 4.2 \
		-crf "$argv[2]" (basename $argv[1] .mkv)_transcoded.mkv
end

# After the transcode is complete, it moves the files to another directory
# for easy cleanup.
function move_transcodes
	mv "$argv[1]" original
	mv (basename $argv[1] .mkv)_transcoded.mkv transcoded
end

# This will create two directories: transcoded and
# original; then get a list of all videos and begin transcoding each video
# one by one. After it finishes transcoding a video, it will
function main
	mkdir transcoded original
	for video in (get_video_list)
		transcode "$video" "18"
		move_transcodes "$video"
	end
end

## Start script
main

transcode-x265.fish

#!/usr/bin/fish
# Gets a list of all videos in the current directory and subdirectory.
function get_video_list
	find * -type f -name \*.mkv
end

# Utilizes ffmpeg to transcode the current input video, $1, with Opus audio and
# H.265 video. It receives a preset parameter, "$2", and a CRF parameter, "$3",
# and will write the newly-transcoded videos to the transcoded directory.
function transcode
	ffmpeg -i "$argv[1]" -preset "$argv[2]" -c:a libopus -c:v libx265 \
		-x265-params "crf=$argv[3]:ref=6:subme=7:bframes=16" \
		(basename $argv[1] .mkv)_transcoded.mkv
end

# After the transcode is complete, it moves the files to another directory
# for easy cleanup.
function move_transcodes
	mv "$argv[1]" original
	mv (basename $argv[1] .mkv)_transcoded.mkv transcoded
end

# This will create two directories: transcoded and
# original; then get a list of all videos and begin transcoding each video
# one by one. After it finishes transcoding a video, it will
function main
	mkdir transcoded original
	for video in (get_video_list)
		transcode "$video" "veryslow" "18"
		move_transcodes "$video"
	end
end

## Start script
main