mirror of
https://github.com/advplyr/audiobookshelf.git
synced 2025-10-27 11:18:14 +01:00
598 lines
20 KiB
JavaScript
598 lines
20 KiB
JavaScript
const Path = require('path')
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const Logger = require('../Logger')
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const prober = require('../utils/prober')
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const { LogLevel } = require('../utils/constants')
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const { parseOverdriveMediaMarkersAsChapters } = require('../utils/parsers/parseOverdriveMediaMarkers')
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const parseNameString = require('../utils/parsers/parseNameString')
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const parseSeriesString = require('../utils/parsers/parseSeriesString')
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const LibraryItem = require('../models/LibraryItem')
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const AudioFile = require('../objects/files/AudioFile')
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class AudioFileScanner {
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constructor() {}
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/**
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* Is array of numbers sequential, i.e. 1, 2, 3, 4
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* @param {number[]} nums
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* @returns {boolean}
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*/
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isSequential(nums) {
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if (!nums?.length) return false
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if (nums.length === 1) return true
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let prev = nums[0]
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for (let i = 1; i < nums.length; i++) {
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if (nums[i] - prev > 1) return false
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prev = nums[i]
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}
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return true
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}
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/**
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* Remove
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* @param {number[]} nums
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* @returns {number[]}
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*/
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removeDupes(nums) {
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if (!nums || !nums.length) return []
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if (nums.length === 1) return nums
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let nodupes = [nums[0]]
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nums.forEach((num) => {
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if (num > nodupes[nodupes.length - 1]) nodupes.push(num)
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})
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return nodupes
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}
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/**
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* Order audio files by track/disc number
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* @param {string} libraryItemRelPath
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* @param {import('../models/Book').AudioFileObject[]} audioFiles
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* @returns {import('../models/Book').AudioFileObject[]}
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*/
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runSmartTrackOrder(libraryItemRelPath, audioFiles) {
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if (!audioFiles.length) return []
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let discsFromFilename = []
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let tracksFromFilename = []
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let discsFromMeta = []
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let tracksFromMeta = []
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audioFiles.forEach((af) => {
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if (af.discNumFromFilename !== null) discsFromFilename.push(af.discNumFromFilename)
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if (af.discNumFromMeta !== null) discsFromMeta.push(af.discNumFromMeta)
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if (af.trackNumFromFilename !== null) tracksFromFilename.push(af.trackNumFromFilename)
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if (af.trackNumFromMeta !== null) tracksFromMeta.push(af.trackNumFromMeta)
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})
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discsFromFilename.sort((a, b) => a - b)
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discsFromMeta.sort((a, b) => a - b)
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tracksFromFilename.sort((a, b) => a - b)
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tracksFromMeta.sort((a, b) => a - b)
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let discKey = null
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if (discsFromMeta.length === audioFiles.length && this.isSequential(discsFromMeta)) {
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discKey = 'discNumFromMeta'
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} else if (discsFromFilename.length === audioFiles.length && this.isSequential(discsFromFilename)) {
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discKey = 'discNumFromFilename'
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}
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let trackKey = null
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tracksFromFilename = this.removeDupes(tracksFromFilename)
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tracksFromMeta = this.removeDupes(tracksFromMeta)
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if (tracksFromFilename.length > tracksFromMeta.length) {
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trackKey = 'trackNumFromFilename'
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} else {
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trackKey = 'trackNumFromMeta'
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}
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if (discKey !== null) {
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Logger.debug(`[AudioFileScanner] Smart track order for "${libraryItemRelPath}" using disc key ${discKey} and track key ${trackKey}`)
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audioFiles.sort((a, b) => {
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let Dx = a[discKey] - b[discKey]
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if (Dx === 0) Dx = a[trackKey] - b[trackKey]
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return Dx
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})
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} else {
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Logger.debug(`[AudioFileScanner] Smart track order for "${libraryItemRelPath}" using track key ${trackKey}`)
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audioFiles.sort((a, b) => a[trackKey] - b[trackKey])
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}
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for (let i = 0; i < audioFiles.length; i++) {
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audioFiles[i].index = i + 1
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}
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return audioFiles
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}
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/**
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* Get track and disc number from audio filename
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* @param {{title:string, subtitle:string, series:string, sequence:string, publishedYear:string, narrators:string}} mediaMetadataFromScan
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* @param {LibraryItem.LibraryFileObject} audioLibraryFile
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* @returns {{trackNumber:number, discNumber:number}}
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*/
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getTrackAndDiscNumberFromFilename(mediaMetadataFromScan, audioLibraryFile) {
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const { title, author, series, publishedYear } = mediaMetadataFromScan
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const { filename, path } = audioLibraryFile.metadata
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let partbasename = Path.basename(filename, Path.extname(filename))
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// Remove title, author, series, and publishedYear from filename if there
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if (title) partbasename = partbasename.replace(title, '')
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if (author) partbasename = partbasename.replace(author, '')
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if (series) partbasename = partbasename.replace(series, '')
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if (publishedYear) partbasename = partbasename.replace(publishedYear)
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// Look for disc number
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let discNumber = null
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const discMatch = partbasename.match(/\b(disc|cd) ?(\d\d?)\b/i)
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if (discMatch && discMatch.length > 2 && discMatch[2]) {
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if (!isNaN(discMatch[2])) {
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discNumber = Number(discMatch[2])
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}
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// Remove disc number from filename
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partbasename = partbasename.replace(/\b(disc|cd) ?(\d\d?)\b/i, '')
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}
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// Look for disc number in folder path e.g. /Book Title/CD01/audiofile.mp3
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const pathdir = Path.dirname(path).split('/').pop()
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if (pathdir && /^(cd|dis[ck])\s*\d{1,3}$/i.test(pathdir)) {
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const discFromFolder = Number(pathdir.replace(/^(cd|dis[ck])\s*/i, ''))
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if (!isNaN(discFromFolder) && discFromFolder !== null) discNumber = discFromFolder
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}
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const numbersinpath = partbasename.match(/\d{1,4}/g)
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const trackNumber = numbersinpath && numbersinpath.length ? parseInt(numbersinpath[0]) : null
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return {
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trackNumber,
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discNumber
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}
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}
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/**
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*
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* @param {string} mediaType
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* @param {LibraryItem.LibraryFileObject} libraryFile
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* @param {{title:string, subtitle:string, series:string, sequence:string, publishedYear:string, narrators:string}} mediaMetadataFromScan
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* @returns {Promise<AudioFile>}
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*/
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async scan(mediaType, libraryFile, mediaMetadataFromScan) {
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const probeData = await prober.probe(libraryFile.metadata.path)
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if (probeData.error) {
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Logger.error(`[AudioFileScanner] ${probeData.error} : "${libraryFile.metadata.path}"`)
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return null
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}
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if (!probeData.audioStream) {
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Logger.error('[AudioFileScanner] Invalid audio file no audio stream')
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return null
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}
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const audioFile = new AudioFile()
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audioFile.trackNumFromMeta = probeData.audioMetaTags.trackNumber
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audioFile.discNumFromMeta = probeData.audioMetaTags.discNumber
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if (mediaType === 'book') {
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const { trackNumber, discNumber } = this.getTrackAndDiscNumberFromFilename(mediaMetadataFromScan, libraryFile)
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audioFile.trackNumFromFilename = trackNumber
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audioFile.discNumFromFilename = discNumber
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}
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audioFile.setDataFromProbe(libraryFile, probeData)
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return audioFile
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}
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/**
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* Scan LibraryFiles and return AudioFiles
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* @param {string} mediaType
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* @param {import('./LibraryItemScanData')} libraryItemScanData
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* @param {LibraryItem.LibraryFileObject[]} audioLibraryFiles
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* @returns {Promise<AudioFile[]>}
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*/
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async executeMediaFileScans(mediaType, libraryItemScanData, audioLibraryFiles) {
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const batchSize = 32
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const results = []
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for (let batch = 0; batch < audioLibraryFiles.length; batch += batchSize) {
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const proms = []
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for (let i = batch; i < Math.min(batch + batchSize, audioLibraryFiles.length); i++) {
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proms.push(this.scan(mediaType, audioLibraryFiles[i], libraryItemScanData.mediaMetadata))
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}
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results.push(...(await Promise.all(proms).then((scanResults) => scanResults.filter((sr) => sr))))
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}
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return results
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}
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/**
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*
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* @param {string} audioFilePath
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* @returns {object}
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*/
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probeAudioFile(audioFilePath) {
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Logger.debug(`[AudioFileScanner] Running ffprobe for audio file at "${audioFilePath}"`)
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return prober.rawProbe(audioFilePath)
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}
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/**
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* Set book metadata & chapters from audio file meta tags
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*
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* @param {string} bookTitle
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* @param {import('../models/Book').AudioFileObject} audioFile
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* @param {Object} bookMetadata
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* @param {import('./LibraryScan')} libraryScan
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*/
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setBookMetadataFromAudioMetaTags(bookTitle, audioFiles, bookMetadata, libraryScan) {
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const MetadataMapArray = [
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{
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tag: 'tagComposer',
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key: 'narrators'
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},
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{
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tag: 'tagDescription',
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altTag: 'tagComment',
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key: 'description'
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},
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{
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tag: 'tagPublisher',
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key: 'publisher'
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},
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{
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tag: 'tagDate',
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key: 'publishedYear'
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},
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{
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tag: 'tagSubtitle',
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key: 'subtitle'
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},
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{
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tag: 'tagAlbum',
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altTag: 'tagTitle',
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key: 'title'
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},
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{
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tag: 'tagArtist',
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altTag: 'tagAlbumArtist',
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key: 'authors'
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},
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{
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tag: 'tagGenre',
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key: 'genres'
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},
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{
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tag: 'tagSeries',
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altTag: 'tagGrouping',
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key: 'series'
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},
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{
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tag: 'tagIsbn',
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key: 'isbn'
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},
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{
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tag: 'tagLanguage',
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key: 'language'
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},
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{
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tag: 'tagASIN',
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key: 'asin'
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}
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]
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const firstScannedFile = audioFiles[0]
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const audioFileMetaTags = firstScannedFile.metaTags
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MetadataMapArray.forEach((mapping) => {
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let value = audioFileMetaTags[mapping.tag]
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let isAltTag = false
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if (!value && mapping.altTag) {
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value = audioFileMetaTags[mapping.altTag]
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isAltTag = true
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}
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if (value && typeof value === 'string') {
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value = value.trim() // Trim whitespace
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if (mapping.key === 'narrators') {
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bookMetadata.narrators = parseNameString.parse(value)?.names || []
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} else if (mapping.key === 'authors') {
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bookMetadata.authors = parseNameString.parse(value)?.names || []
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} else if (mapping.key === 'genres') {
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bookMetadata.genres = this.parseGenresString(value)
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} else if (mapping.key === 'series') {
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// If series was embedded in the grouping tag, then parse it with semicolon separator and sequence in the same string
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// e.g. "Test Series; Series Name #1; Other Series #2"
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if (isAltTag) {
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const series = value
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.split(';')
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.map((seriesWithPart) => {
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seriesWithPart = seriesWithPart.trim()
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return parseSeriesString.parse(seriesWithPart)
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})
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.filter(Boolean)
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if (series.length) {
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bookMetadata.series = series
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}
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} else {
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// Detect if multiple series are in the series & series-part tags.
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// Note: This requires that every series has a sequence and that they are separated by a semicolon.
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if (value.includes(';') && audioFileMetaTags.tagSeriesPart?.includes(';')) {
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const seriesSplit = value
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.split(';')
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.map((s) => s.trim())
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.filter(Boolean)
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const seriesSequenceSplit = audioFileMetaTags.tagSeriesPart
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.split(';')
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.map((s) => s.trim())
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.filter(Boolean)
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if (seriesSplit.length > 1 && seriesSplit.length === seriesSequenceSplit.length) {
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bookMetadata.series = seriesSplit.map((series, index) => ({
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name: series,
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sequence: seriesSequenceSplit[index] || null
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}))
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libraryScan.addLog(LogLevel.DEBUG, `Detected multiple series in series/series-part tags: ${bookMetadata.series.map((s) => `${s.name} #${s.sequence}`).join(', ')}`)
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return
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}
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}
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// Original embed used "series" and "series-part" tags
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bookMetadata.series = [
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{
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name: value,
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sequence: audioFileMetaTags.tagSeriesPart || null
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}
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]
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}
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} else {
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bookMetadata[mapping.key] = value
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}
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}
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})
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// Set chapters
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const chapters = this.getBookChaptersFromAudioFiles(bookTitle, audioFiles, libraryScan)
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if (chapters.length) {
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bookMetadata.chapters = chapters
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}
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}
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/**
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* Set podcast metadata from first audio file
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*
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* @param {import('../models/Book').AudioFileObject} audioFile
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* @param {Object} podcastMetadata
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* @param {import('./LibraryScan')} libraryScan
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*/
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setPodcastMetadataFromAudioMetaTags(audioFile, podcastMetadata, libraryScan) {
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const audioFileMetaTags = audioFile.metaTags
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const MetadataMapArray = [
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{
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tag: 'tagAlbum',
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altTag: 'tagSeries',
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key: 'title'
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},
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{
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tag: 'tagAlbumArtist',
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altTag: 'tagArtist',
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key: 'author'
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},
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{
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tag: 'tagGenre',
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key: 'genres'
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},
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{
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tag: 'tagLanguage',
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key: 'language'
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},
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{
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tag: 'tagItunesId',
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key: 'itunesId'
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},
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{
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tag: 'tagPodcastType',
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key: 'podcastType'
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}
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]
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MetadataMapArray.forEach((mapping) => {
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let value = audioFileMetaTags[mapping.tag]
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let tagToUse = mapping.tag
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if (!value && mapping.altTag) {
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value = audioFileMetaTags[mapping.altTag]
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tagToUse = mapping.altTag
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}
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if (value && typeof value === 'string') {
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value = value.trim() // Trim whitespace
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if (mapping.key === 'genres') {
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podcastMetadata.genres = this.parseGenresString(value)
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libraryScan.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastMetadata.genres.join(', ')}`)
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} else {
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podcastMetadata[mapping.key] = value
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libraryScan.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastMetadata[mapping.key]}`)
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}
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}
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})
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}
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/**
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*
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* @param {import('../models/PodcastEpisode')} podcastEpisode Not the model when creating new podcast
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* @param {import('./ScanLogger')} scanLogger
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*/
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setPodcastEpisodeMetadataFromAudioMetaTags(podcastEpisode, scanLogger) {
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const MetadataMapArray = [
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{
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tag: 'tagComment',
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altTag: 'tagDescription',
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key: 'description'
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},
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{
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tag: 'tagSubtitle',
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key: 'subtitle'
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},
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{
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tag: 'tagDate',
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key: 'pubDate'
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},
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{
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tag: 'tagDisc',
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key: 'season'
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},
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{
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tag: 'tagTrack',
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altTag: 'tagSeriesPart',
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key: 'episode'
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},
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{
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tag: 'tagTitle',
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key: 'title'
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},
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{
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tag: 'tagEpisodeType',
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key: 'episodeType'
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}
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]
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const audioFileMetaTags = podcastEpisode.audioFile.metaTags
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MetadataMapArray.forEach((mapping) => {
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let value = audioFileMetaTags[mapping.tag]
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let tagToUse = mapping.tag
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if (!value && mapping.altTag) {
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tagToUse = mapping.altTag
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value = audioFileMetaTags[mapping.altTag]
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}
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if (value && typeof value === 'string') {
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value = value.trim() // Trim whitespace
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if (mapping.key === 'pubDate') {
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const pubJsDate = new Date(value)
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if (pubJsDate && !isNaN(pubJsDate)) {
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podcastEpisode.publishedAt = pubJsDate.valueOf()
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podcastEpisode.pubDate = value
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scanLogger.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastEpisode[mapping.key]}`)
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} else {
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scanLogger.addLog(LogLevel.WARN, `Mapping pubDate with tag ${tagToUse} has invalid date "${value}"`)
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}
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} else if (mapping.key === 'episodeType') {
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if (['full', 'trailer', 'bonus'].includes(value)) {
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podcastEpisode.episodeType = value
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scanLogger.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastEpisode[mapping.key]}`)
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} else {
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scanLogger.addLog(LogLevel.WARN, `Mapping episodeType with invalid value "${value}". Must be one of [full, trailer, bonus].`)
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}
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} else {
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podcastEpisode[mapping.key] = value
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scanLogger.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastEpisode[mapping.key]}`)
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}
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}
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})
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}
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/**
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* @param {string} bookTitle
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* @param {AudioFile[]} audioFiles
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* @param {import('./LibraryScan')} libraryScan
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* @returns {import('../models/Book').ChapterObject[]}
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*/
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getBookChaptersFromAudioFiles(bookTitle, audioFiles, libraryScan) {
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// If overdrive media markers are present then use those instead
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const overdriveChapters = parseOverdriveMediaMarkersAsChapters(audioFiles)
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if (overdriveChapters?.length) {
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libraryScan.addLog(LogLevel.DEBUG, 'Overdrive Media Markers and preference found! Using these for chapter definitions')
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return overdriveChapters
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}
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let chapters = []
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// If first audio file has embedded chapters then use embedded chapters
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if (audioFiles[0].chapters?.length) {
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// If all files chapters are the same, then only make chapters for the first file
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if (audioFiles.length === 1 || (audioFiles.length > 1 && audioFiles[0].chapters.length === audioFiles[1].chapters?.length && audioFiles[0].chapters.every((c, i) => c.title === audioFiles[1].chapters[i].title && c.start === audioFiles[1].chapters[i].start))) {
|
|
libraryScan.addLog(LogLevel.DEBUG, `setChapters: Using embedded chapters in first audio file ${audioFiles[0].metadata?.path}`)
|
|
chapters = audioFiles[0].chapters.map((c) => ({ ...c }))
|
|
} else {
|
|
libraryScan.addLog(LogLevel.DEBUG, `setChapters: Using embedded chapters from all audio files ${audioFiles[0].metadata?.path}`)
|
|
let currChapterId = 0
|
|
let currStartTime = 0
|
|
|
|
audioFiles.forEach((file) => {
|
|
if (file.duration) {
|
|
// Multi-file audiobook may include the previous and next chapters embedded with close to 0 duration
|
|
// Filter these out and log a warning
|
|
// See https://github.com/advplyr/audiobookshelf/issues/3361
|
|
const afChaptersCleaned =
|
|
file.chapters?.filter((c, i) => {
|
|
if (c.end - c.start < 0.1) {
|
|
libraryScan.addLog(LogLevel.WARN, `Audio file "${file.metadata.filename}" Chapter "${c.title}" (index ${i}) has invalid duration of ${c.end - c.start} seconds. Skipping this chapter.`)
|
|
return false
|
|
}
|
|
return true
|
|
}) || []
|
|
|
|
const afChapters = afChaptersCleaned.map((c, i) => ({
|
|
...c,
|
|
id: currChapterId + i,
|
|
start: c.start + currStartTime,
|
|
end: c.end + currStartTime
|
|
}))
|
|
chapters = chapters.concat(afChapters)
|
|
|
|
currChapterId += afChaptersCleaned.length ?? 0
|
|
currStartTime += file.duration
|
|
}
|
|
})
|
|
return chapters
|
|
}
|
|
} else if (audioFiles.length > 1) {
|
|
// In some cases the ID3 title tag for each file is the chapter title, the criteria to determine if this will be used
|
|
// 1. Every audio file has an ID3 title tag set
|
|
// 2. None of the title tags are the same as the book title
|
|
// 3. Every ID3 title tag is unique
|
|
const metaTagTitlesFound = [...new Set(audioFiles.map((af) => af.metaTags?.tagTitle).filter((tagTitle) => !!tagTitle && tagTitle !== bookTitle))]
|
|
const useMetaTagAsTitle = metaTagTitlesFound.length === audioFiles.length
|
|
|
|
// Build chapters from audio files
|
|
let currChapterId = 0
|
|
let currStartTime = 0
|
|
audioFiles.forEach((file) => {
|
|
if (file.duration) {
|
|
let title = file.metadata.filename ? Path.basename(file.metadata.filename, Path.extname(file.metadata.filename)) : `Chapter ${currChapterId}`
|
|
if (useMetaTagAsTitle) {
|
|
title = file.metaTags.tagTitle
|
|
}
|
|
|
|
chapters.push({
|
|
id: currChapterId++,
|
|
start: currStartTime,
|
|
end: currStartTime + file.duration,
|
|
title
|
|
})
|
|
currStartTime += file.duration
|
|
}
|
|
})
|
|
}
|
|
return chapters
|
|
}
|
|
|
|
/**
|
|
* Parse a genre string into multiple genres
|
|
* @example "Fantasy;Sci-Fi;History" => ["Fantasy", "Sci-Fi", "History"]
|
|
*
|
|
* @param {string} genreTag
|
|
* @returns {string[]}
|
|
*/
|
|
parseGenresString(genreTag) {
|
|
if (!genreTag?.length) return []
|
|
const separators = ['/', '//', ';']
|
|
for (let i = 0; i < separators.length; i++) {
|
|
if (genreTag.includes(separators[i])) {
|
|
return genreTag
|
|
.split(separators[i])
|
|
.map((genre) => genre.trim())
|
|
.filter((g) => !!g)
|
|
}
|
|
}
|
|
return [genreTag]
|
|
}
|
|
}
|
|
module.exports = new AudioFileScanner()
|