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steffen-dotfiles/zsh/functions
2017-09-18 11:38:48 +02:00

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# convert a video to mp4 + webm in one go for web
function webvideo() {
ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 128k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1.webm
ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 128k -ar 44100 -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1.mp4
}
function webvideohigh() {
ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 160k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high.webm
ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 160k -ar 44100 -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high.mp4
}
function webvideolow() {
ffmpeg -i $1 -acodec libvorbis -ac 2 -b:a 96k -ar 44100 -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low.webm
ffmpeg -i $1 -movflags +faststart -acodec libfdk_aac -ac 2 -b:a 96k -ar 44100 -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low.mp4
}
# convert a video to mp4 + webm in one go for web
function webvideonoaudio() {
ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1--no-audio.webm
ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 2M -maxrate 2M -bufsize 4M -s 1280x720 $1--no-audio.mp4
}
function webvideohighnoaudio() {
ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high--no-audio.webm
ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 3M -maxrate 3M -bufsize 6M -s 1280x720 $1--high--no-audio.mp4
}
function webvideolownoaudio() {
ffmpeg -i $1 -an -vcodec libvpx -pix_fmt yuv420p -r 25 -qmin 10 -qmax 42 -cpu-used 0 -threads 2 -quality good -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low--no-audio.webm
ffmpeg -i $1 -movflags +faststart -an -vcodec libx264 -vprofile high -preset slow -pix_fmt yuv420p -r 25 -b:v 1M -maxrate 1M -bufsize 2M -s 1280x720 $1--low--no-audio.mp4
}
# create and change to directory/folder
function take() {
mkdir -p $1
cd $1
}
# a function to get the current branch for git shortcuts etc
function current_branch() {
ref=$(git symbolic-ref HEAD 2> /dev/null) || \
ref=$(git rev-parse --short HEAD 2> /dev/null) || return
echo ${ref#refs/heads/}
}
# easy vim/terminal switch
fancy-ctrl-z () {
if [[ $#BUFFER -eq 0 ]]; then
BUFFER="fg"
zle accept-line
else
zle push-input
zle clear-screen
fi
}
# creates an archive from given directory
mktar() { tar cvf "${1%%/}.tar" "${1%%/}"; }
mktgz() { tar cvzf "${1%%/}.tgz" "${1%%/}"; }
mkzip() { zip -r "${1%%/}" "${1%%/}"; }
# easy extract
extract () {
if [ -f $1 ] ; then
case $1 in
*.tar.bz2) tar xvjf $1 ;;
*.tar.gz) tar xvzf $1 ;;
*.bz2) bunzip2 $1 ;;
*.rar) rar x $1 ;;
*.gz) gunzip $1 ;;
*.tar) tar xvf $1 ;;
*.tgz) tar xvzf $1 ;;
*.tbz2) tar xvjf $1 ;;
*.tbz) tar xvjf $1 ;;
*.zip) unzip $1 ;;
*.Z) uncompress $1 ;;
*.7z) 7z x $1 ;;
*) echo "don't know how to extract '$1'..." ;;
esac
else
echo "'$1' is not a valid file!"
fi
}