Embed YouTube timestamps/Audacity label track as chapters in audio

markers

#!/bin/zsh

[ $# -lt 1 -a $# -gt 2 ] && {
	echo "Inadequate amount of arguments" 1>&2
	exit 1
}
[ ! -f "$1" ] && {
	echo "File does not exist" 1>&2
	exit 1
}

tab=$'\t'
dig='[0-9]+'
dec="$dig\.$dig"
cr=$'\r'
lf=$'\n'
ds=$'\$'
i=0
fmt="($dig):($dig):($dig)(\.$dig)?"
timecode="%d:%02d:%06.3f"
[ "$1" -ef "$2" ] && set -- "$1"
stofmt() {
	[[ "$1" =~ "^$fmt$ds" ]] && {
		printf "$timecode" "${match[1]}" "${match[2]}" "$((${match[3]}+${match[4]:-0.000}))"
		return 0
	}
	! [[ "$1" =~ "^$dec$ds" ]] && {
		echo "Invalid input: $1" 1>&2
		return 1
	}
	t="$(printf "%0.3f" "${match[1]}")" # avoid writing 0:60.000 :l
	printf "$timecode" $(($t/3600)) $(($t/60%60)) $(($t%60))
	return 0
}
out="${2:-${1:t:r}_chapters.${1:t:e}}"
{
	while read -r inp; do
		! [[ "$inp" =~ "^($fmt)[ $tab]([^$cr$lf]+)" ]] && {
			! [[ "$inp" =~ "^($dec)$tab$dec$tab([^$cr$lf]+)" ]] && {
				printf "Invalid line: %s" "$inp$lf" 1>&2
				continue
			}
		}
		printf "CHAPTER%03d=%s\nCHAPTER%03dNAME=%s\n" $i "$(stofmt "$match[1]")" $i "${match[6]:-${match[2]}}"
		((i++))
	done
	# FFMPEG MAKES ME SUICIDAL
	#while [ $i -lt 1000 ]; do # erase previous ones...
	#	printf "CHAPTER%03d=\nCHAPTER%03dNAME=\n" $i $i
	#	((i++))
	#done
} | ffmpeg -hide_banner -loglevel ${mverbose:-info} -i "$1" \
		-f ffmetadata -i - -c copy -map_chapters -1 -map_metadata 1:g "$out" -y 2>&1 | \
		grep -Uv -e '\s\+CHAPTER[0-9]\+' -e '^$' --color=always && touch "$out" -r "$1"

medit

#!/bin/zsh

[ $# -lt 1 -a $# -gt 2 ] && {
	echo "Inadequate amount of arguments"
	exit 1
}
[ ! -f "$1" ] && {
	echo "File does not exist" 1>&2
	exit 1
}

tmpf="medit$RANDOM$RANDOM - ${1:t:r}"
ffprobe -v 0 -i "$1" -of json=compact=1 -show_chapters | \
	jq -r '.chapters // {} | to_entries | map(
		.value.start as $start |
		($start%60000/1000|tostring|split(".")) as $S |
		.value.tags.title as $title |
			((("0"+(((($start)/(60*60*1000))|floor|tostring))|.[-2:])))+":"+
			(("00"+(($start%(60*60*1000)/60000|floor|tostring))|.[-2:]))+":"+
			(("0"+$S[0])|.[-2:])+"."+((($S[1]//"0")+"00")|.[:3])+
		" "+$title
	) | join("\n")' -> "$tmpf" && ${EDITOR:-nano} "$tmpf" && markers "$1" "${2:-$tmpf.${1:t:e}}" < "$tmpf" && rm "$tmpf" && \
	(wait.exe 50 && < "$tmpf.${1:t:e}" > "$1" 2>/dev/null && touch "$1" -r "$tmpf.${1:t:e}"; rm "$tmpf.${1:t:e}" 2>/dev/null) # mverbose=error