mirror of https://github.com/captn3m0/Scripts.git
128 lines
3.5 KiB
Bash
Executable File
128 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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IFS=$'\n\t'
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# -allow a command to fail with !’s side effect on errexit
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# -use return value from ${PIPESTATUS[0]}, because ! hosed $?
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! getopt --test > /dev/null
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if [[ ${PIPESTATUS[0]} -ne 4 ]]; then
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echo 'I’m sorry, `getopt --test` failed in this environment.'
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exit 1
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fi
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OPTIONS=hv
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LONGOPTS=background:,no-cleanup,help,verbose,dry-run
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# -regarding ! and PIPESTATUS see above
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# -temporarily store output to be able to check for errors
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# -activate quoting/enhanced mode (e.g. by writing out “--options”)
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# -pass arguments only via -- "$@" to separate them correctly
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! PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@")
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if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
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# e.g. return value is 1
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# then getopt has complained about wrong arguments to stdout
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exit 2
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fi
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# read getopt’s output this way to handle the quoting right:
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eval set -- "$PARSED"
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bg="black" cleanup=y dry=n verbose=n
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# usage function
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function show_help()
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{
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cat << HEREDOC
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Usage: audiobook2video [--background white] [--no-cleanup] [--verbose] [--dry-run] [--verbose] audio.m4a cover.jpg
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optional arguments:
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-h, --help show this help message and exit
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--no-cleanup Do not cleanup temporary files
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--background Change background color for video (default black). See list of color and formats at https://imagemagick.org/script/color.php
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--dry-run do a dry run, dont change any files
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-v, --verbose increase the verbosity of the bash script
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HEREDOC
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}
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while true; do
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case "$1" in
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--background)
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bg="$2"
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shift 2
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;;
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--no-cleanup)
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cleanup=n
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shift
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;;
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-h|--help)
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show_help
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exit 0
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;;
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--dry-run)
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dry=y
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shift
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;;
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-v|--verbose)
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verbose=y
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shift
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;;
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--)
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shift
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break
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;;
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*)
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echo "Programming error"
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exit 3
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;;
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esac
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done
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if [ $# -lt 2 ]; then
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echo "Missing arguments. See help:"
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show_help
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exit 1
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fi
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AUDIO_FILENAME="$1"
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COVER_FILENAME="$2"
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VIDEO_FILENAME="$(echo "$AUDIO_FILENAME" | cut -f 1 -d '.').mp4"
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# TODO: Support different backgrounds
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BACKGROUND_COLOR="$bg"
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NEW_COVER_FILENAME="$(mktemp --suffix=".png")"
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# Used in case m4a is not provided
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NEW_AUDIO_FILENAME="$(mktemp --suffix=".m4a")"
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if [ ! -f "$AUDIO_FILENAME" ]; then
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echo "$AUDIO_FILENAME not found"
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exit 1
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fi
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if [ ! -f "$COVER_FILENAME" ]; then
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echo "$COVER_FILENAME not found"
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exit 1
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fi
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echo "Saving background image to $NEW_COVER_FILENAME"
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convert -background "$BACKGROUND_COLOR" -gravity center -resize 1080x1080 -extent 1920x1080 "$COVER_FILENAME" "$NEW_COVER_FILENAME"
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# Convert files to M4A if needed
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case $AUDIO_FILENAME in
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*.m4a) echo "m4a supported, not converting";;
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*.m4b) echo "m4b supported, not converting";;
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*)
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echo "Saving audio file $NEW_AUDIO_FILENAME"
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ffmpeg -loglevel fatal -y -i "$AUDIO_FILENAME" -vn -codec:a aac -strict -2 -b:a 384k -r:a 48000 "$NEW_AUDIO_FILENAME"
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AUDIO_FILENAME="$NEW_AUDIO_FILENAME"
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;;
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esac
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echo "Starting conversion"
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ffmpeg -r 1 -loop 1 -y -i "$COVER_FILENAME" -i "$AUDIO_FILENAME" -c:a copy -r 1 -vcodec libx264 -shortest "$VIDEO_FILENAME"
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echo "Saved: $VIDEO_FILENAME"
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if [[ $cleanup == "y" ]]; then
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echo "Cleaning up"
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rm -f $NEW_AUDIO_FILENAME $NEW_COVER_FILENAME
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fi |