Перекодирование одиночного lossless аудиофайла во FLAC по CUE-таблице

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Версия от 19:22, 6 марта 2009; Rain (обсуждение | вклад) (добавлено вытягивание CUE из FLAC)
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Скрипт для преобразования одиночного ape-файла, представляющего собой копию диска в отдельные FLAC-файлы с заполнением тегов и именованием файлов в соответствии с CUE-таблицой

Использование
cueape2flac "AUDIO FILE.ape" "TEXT FILE.cue"
Зависимости
flac, shntool, cuetools, enca, monkeys-audio, wavpack

#!/bin/bash
# By Rain ;)
# Usage: cueape2flac "AUDIO FILE.ape" "TEXT FILE.cue"
# Depends on flac, if needed - shntool, cuetools, enca, monkeys-audio, wavpack

outdir='output'
direct='1'

error() {
echo -e "\e[31m${1}\e[0m"
exit $2
}

test $(which flac) || error "Error: FLAC convertor not found" 1

if [ ! -z "${2}" ]; then
	test $(which shnsplit)	|| error "Please, install shntool first" 1
	test $(which enconv)	|| error "Please, install enca first" 1
	test $(which cuetag)	|| error "Please, install cuetools first" 1
	cuefile="${2}"
else
	if [[ "$(file -b "${1}")" =~ "FLAC audio" ]]; then
		if [ "$(metaflac --list "${1}" | grep -qi cuesheet && echo 1)" ]; then
			echo "Founded build-in CUE-sheet, extracting..."
			metaflac "${1}" --export-tags-to=- | sed -e 's/CUESHEET=//g' -n -e '/^ *$/,//!p' > "${1%.*}.cue"
			cuefile="${1%.*}.cue"
		else
			echo "CUE-sheet not specified, so we simply convert ${1} to FLAC format"
			direct='0'
		fi
	fi
fi

if	[[ "$(file -b "${1}")" =~ "Monkey's Audio" ]]; then
		test $(which mac)	|| error "Error: Monkey Audio convertor not found" 1
elif	[ "${1##*.}" == 'wv' ]; then
		test $(which wvunpack)	|| error "Error: WavPack decompressor not found" 1
fi

[ -e $outdir ] && echo "Warning: $outdir already exist" || echo "Creating output directory"
mkdir -p "$outdir"
tempfile="$(date +tempfile.%s)"

if [ "${direct}" == '0' ]; then
	if 	[[ "$(file -b "${1}")" =~ "Monkey's Audio" ]]; then
			echo "Converting "$1" from APE to WAV-format"
			mac "$1" "${outdir}/${tempfile}.wav" -d
	elif	[[ "$(file -b "${1}")" =~ "FLAC audio" ]]; then
			echo "Converting "$1" from FLAC to WAV-format"
			flac -d "${1}" -o "${outdir}/${tempfile}.wav"
	elif	[[ "$(file -b "${1}")" =~ "WAVE audio" ]]; then
			echo "Ok, ${1} ready to splitting, linking to ${outdir}"
			ln "${1}" "${outdir}/${tempfile}.wav"
	elif	[ "${1##*.}" == 'wv' ]; then
		echo "Converting "$1" from WavPack to WAV-format"
		wvunpack -m "${1}"
		mv "${1%.*}.wav" "${outdir}/${tempfile}.wav"
	else
		error "Can't recognize input file format" 1
	fi
else
	if 	[ "${1##*.}" == 'wv' ]; then
		echo "Converting "$1" from WavPack to WAV-format"
		wvunpack -m "${1}"
		mv "${1%.*}.wav" "${outdir}/${tempfile}.wav"
	else
		ln "${1}" "${outdir}/${tempfile}.${1##*.}"
	fi
fi

cd "${outdir}"

if [ -z "${cuefile}" ]; then
	echo "Converting "${1}" to FLAC"
	flac --delete-input-file --best -V "${tempfile}.wav" -o "${1%.*}.flac"
else
	# Converting CUE-sheet
	cat ../"${cuefile}" | enconv > "${cuefile}"
	
	echo "Splitting "${1}" to multiple FLAC files"
	cat "${cuefile}" | shnsplit -o 'flac ext=flac flac --best -V - -o %f' -t %n-%p-%a-%t "${tempfile}"*
	rm -f "${tempfile}"*
	echo "Tagging files"
	cuetag "${cuefile}" *.flac
fi

exit 0

ToDo: для варианта FLAC->FLAC без CUE сделать сохранение тегов