Konverter mediefiler med ffmpeg

# Converts media files to a separate folder called 'converted'
# Copy this script to the directory containing the media files and run it

# If you run the script on macOS and intend to watch the media files with QuickTime, you probably need to recode the files and you'll need to install ffmpeg. Some formats such as 'webm' may need more thorough (and slow) encoding.

# To install ffmpeg on macOS you may find it easiest through Homebrew (Note: Not older macOS no longer supported by Apple), run the command:

# /bin/bash -c "$(curl -fsSL https ://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

# Then run the command: brew install ffmpeg

# function - Wait for Enter to be pressed.
PAUSE1(){
    echo "Do you wish to convert?"
    read -p "Press [Enter] key to continue..." fackEnterKey
}

PAUSE1

# Let the terminal read the path to the directory (Linux only)
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

# Start converting to mp4
# Please, add more formats if needed
mkdir -p "converted"

# No recode
for f in *.mkv;do ffmpeg -i "$f" -c copy -strict -2  "converted/${f%mkv}mp4";done
for f in *.webm;do ffmpeg -i "$f" -c copy -strict -2  "converted/${f%webm}mp4";done
for f in *.ts;do ffmpeg -i "$f" -c copy -strict -2  "converted/${f%ts}mp4";done

# With recode
#for f in *.mkv;do ffmpeg -i "$f" -c:v copy -c:a aac -b:a 256k "converted/${f%mkv}mp4";done
#for f in *.webm;do ffmpeg -i "$f" -c:v copy -c:a aac -b:a 256k "converted/${f%webm}mp4";done
#for f in *.ts;do ffmpeg -i "$f" -c:v copy -c:a aac -b:a 256k "converted/${f%mkv}ts";done

# Disclaimer:

# This script is published under the Copyweird NFL license (No Freaking License) version 0.0 or newer.
# By using this script, you acknowledges you are obligated to obey NFL and thereby committing to the terms of NFL.  
# Any usage of this script is your responsibility and yours alone. No one but you, as the user of this script, can be held responsible for any damage this script might cause unconsciously or deliberately.
# Copyweird infringement and complaints about the conditions, will be met with the optional legal requirement that you flush your head in the lavatory bowl.

# This script use 'FFmpeg' to convert media files and has absolutely nothing to do with the NFL license. FFmpeg is licensed under GNU Lesser General Public License (LGPL) version 2.1 or later. However, FFmpeg incorporates several optional parts and optimizations that are covered by the GNU General Public License (GPL) version 2 or later.

# IMPORTANT. This script need to be copied to the folder containing the media files you wish to convert.

# Define variables
PURPLE='\033[35;1m'
RED='\033[0;41;37m'  # White font - red background
RED1='\033[31;1m'
RED2='\033[31;5;1m'  # flashing red font (ubuntu 18.04 only)
RED3='\033[31m'
STD='\033[0;0;39m'
YEL='\033[33;1m'
WFBG='\033[40;37;1m' # bold font - black background, using 256 color background sequence
BFBG='\033[104;30m'  # dark blue font - light blue background
GREEN='\033[32;1m'
CYAN='\033[36;1m'

PROGRAM_1="ffmpeg"   # System name
PROG_1="FFmpeg"      # User friendly name

# Check for preconditions
if ! [ -x "$(command -v $PROGRAM_1 )" ]; then
    echo -e $RED"$PROG_1 is not installed but needed to convert."$STD
    echo
    echo -e $YEL"This script is created for Debian-Ubuntu and derivats only"$STD
    echo -e $GREEN"On such ${PROG_1} will be automatically installed if you continue ..."$STD
    echo -e $RED1"On all other Linux, you'll need to install ${PROG_1}according to the respective Packet Managers"$STD
    sudo apt-get update && sudo apt-get install $PROGRAM_1
else
    echo
    echo -e ${GREEN}"$PROG_1 is installed."$STD
    echo
fi

# Let the terminal read the path to the directory (Linux only)
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

# Function
PAUSE(){
  read -p "  Press [Enter] key to continue..." fackEnterKey
}

# call item 1
one(){
echo "one() called"
        PAUSE
}

# call item 2
two(){
echo "two() called"
        PAUSE
}

# function to display menu
show_menus() {
clear
    echo
    echo -e "  ${WFBG}                                     "${STD}
echo -e "  ${WFBG}     C O N V E R T  2  M P 4         "${STD}
    echo -e "  ${WFBG} ${CYAN}                                    "${STD}
echo -e "  ${WFBG} ${CYAN} 1. No recode            (Fast)     "${STD}
echo -e "  ${WFBG} ${CYAN} 2. Recode media files   (Slow)     "${STD}
    echo -e "  ${WFBG} ${RED2}                                    "${STD} && sleep 1
echo -e "  ${WFBG} ${RED2} q. Quit menu                       "${STD}
    echo -e "  ${WFBG} ${RED2}                                    "${STD}
    echo -e  ${STD}
}

# read input from the keyboard and take an action
read_options(){
echo -e  ${RED1}"  IMPORTANT${YEL} This scipt need to be copied to the folder who"${STD}
echo -e  ${YEL}"  contain the media files you wish to convert to MP4."${STD}
echo -e  ${RED1}"  If you haven't done that, please Quit and correct ..."${STD}
echo
local choice
    tput setaf 2
    tput bold
    read -p "  Select option and press Enter [1 - q] "  choice
    tput sgr0
case $choice in
1) # No recode
           echo -e ${YEL}"  You have selected the fast option with no recode."${STD}
           echo -e ${PURPLE}"  A folder ${GREEN}converted-no-recode${PURPLE} will be created within this folder containing the converted files"${STD}
           # Wait for Enter to be pressed.
           PAUSE
           # Start converting to mp4
           # Please, add more formats below if needed
           mkdir -p "converted-no-recode"
               for f in *.mkv;do ffmpeg -i "$f" -c copy -strict -2  "converted-no-recode/${f%mkv}mp4";done
               for f in *.webm;do ffmpeg -i "$f" -c copy -strict -2  "converted-no-recode/${f%webm}mp4";done
               for f in *.ts;do ffmpeg -i "$f" -c copy -strict -2  "converted-no-recode/${f%ts}mp4";done
               for f in *.mp4;do ffmpeg -i "$f" -c copy -strict -2  "converted-no-recode/${f%mp4}mp4";done ;;
2) # With recode
           echo -e ${YEL}"  You have selected the slow option with recode."
           echo -e ${YEL}"  It might take hours with very large files."${STD}
           echo -e ${PURPLE}"  A folder ${GREEN}converted-recoded${PURPLE} will be created within this folder containing the converted files"${STD}
           # Wait for Enter to be pressed.
           PAUSE
           # Start converting to mp4
           # Please, add more formats below if needed
           mkdir -p "converted-recoded"
               for f in *.mkv;do ffmpeg -i "$f" -c:v copy -c:a aac -b:a 256k "converted-recoded/${f%mkv}mp4";done
               for f in *.webm;do ffmpeg -i "$f" -c:v copy -c:a aac -b:a 256k "converted-recoded/${f%webm}mp4";done
               for f in *.ts;do ffmpeg -i "$f" -c:v copy -c:a aac -b:a 256k "converted-recoded/${f%mkv}ts";done
               for f in *.mp4;do ffmpeg -i "$f" -c:v copy -c:a aac -b:a 256k "converted-recoded/${f%mp4}mp4";done ;;
q) exit 0;;
*) echo -e "${RED}  Please select a valid menu item...${STD}" && sleep 2
esac
}

# Trap CTRL+C, CTRL+Z and quit singles - Note: Not in usage
trap '' SIGINT SIGQUIT SIGTSTP