mirror of
https://github.com/advplyr/audiobookshelf.git
synced 2025-10-27 11:18:14 +01:00
546 lines
18 KiB
JavaScript
546 lines
18 KiB
JavaScript
const Path = require('path')
|
|
const Logger = require('../Logger')
|
|
const prober = require('../utils/prober')
|
|
const { LogLevel } = require('../utils/constants')
|
|
const { parseOverdriveMediaMarkersAsChapters } = require('../utils/parsers/parseOverdriveMediaMarkers')
|
|
const parseNameString = require('../utils/parsers/parseNameString')
|
|
const LibraryItem = require('../models/LibraryItem')
|
|
const AudioFile = require('../objects/files/AudioFile')
|
|
|
|
class AudioFileScanner {
|
|
constructor() { }
|
|
|
|
/**
|
|
* Is array of numbers sequential, i.e. 1, 2, 3, 4
|
|
* @param {number[]} nums
|
|
* @returns {boolean}
|
|
*/
|
|
isSequential(nums) {
|
|
if (!nums?.length) return false
|
|
if (nums.length === 1) return true
|
|
let prev = nums[0]
|
|
for (let i = 1; i < nums.length; i++) {
|
|
if (nums[i] - prev > 1) return false
|
|
prev = nums[i]
|
|
}
|
|
return true
|
|
}
|
|
|
|
/**
|
|
* Remove
|
|
* @param {number[]} nums
|
|
* @returns {number[]}
|
|
*/
|
|
removeDupes(nums) {
|
|
if (!nums || !nums.length) return []
|
|
if (nums.length === 1) return nums
|
|
|
|
let nodupes = [nums[0]]
|
|
nums.forEach((num) => {
|
|
if (num > nodupes[nodupes.length - 1]) nodupes.push(num)
|
|
})
|
|
return nodupes
|
|
}
|
|
|
|
/**
|
|
* Order audio files by track/disc number
|
|
* @param {string} libraryItemRelPath
|
|
* @param {import('../models/Book').AudioFileObject[]} audioFiles
|
|
* @returns {import('../models/Book').AudioFileObject[]}
|
|
*/
|
|
runSmartTrackOrder(libraryItemRelPath, audioFiles) {
|
|
if (!audioFiles.length) return []
|
|
|
|
let discsFromFilename = []
|
|
let tracksFromFilename = []
|
|
let discsFromMeta = []
|
|
let tracksFromMeta = []
|
|
|
|
audioFiles.forEach((af) => {
|
|
if (af.discNumFromFilename !== null) discsFromFilename.push(af.discNumFromFilename)
|
|
if (af.discNumFromMeta !== null) discsFromMeta.push(af.discNumFromMeta)
|
|
if (af.trackNumFromFilename !== null) tracksFromFilename.push(af.trackNumFromFilename)
|
|
if (af.trackNumFromMeta !== null) tracksFromMeta.push(af.trackNumFromMeta)
|
|
})
|
|
discsFromFilename.sort((a, b) => a - b)
|
|
discsFromMeta.sort((a, b) => a - b)
|
|
tracksFromFilename.sort((a, b) => a - b)
|
|
tracksFromMeta.sort((a, b) => a - b)
|
|
|
|
let discKey = null
|
|
if (discsFromMeta.length === audioFiles.length && this.isSequential(discsFromMeta)) {
|
|
discKey = 'discNumFromMeta'
|
|
} else if (discsFromFilename.length === audioFiles.length && this.isSequential(discsFromFilename)) {
|
|
discKey = 'discNumFromFilename'
|
|
}
|
|
|
|
let trackKey = null
|
|
tracksFromFilename = this.removeDupes(tracksFromFilename)
|
|
tracksFromMeta = this.removeDupes(tracksFromMeta)
|
|
if (tracksFromFilename.length > tracksFromMeta.length) {
|
|
trackKey = 'trackNumFromFilename'
|
|
} else {
|
|
trackKey = 'trackNumFromMeta'
|
|
}
|
|
|
|
if (discKey !== null) {
|
|
Logger.debug(`[AudioFileScanner] Smart track order for "${libraryItemRelPath}" using disc key ${discKey} and track key ${trackKey}`)
|
|
audioFiles.sort((a, b) => {
|
|
let Dx = a[discKey] - b[discKey]
|
|
if (Dx === 0) Dx = a[trackKey] - b[trackKey]
|
|
return Dx
|
|
})
|
|
} else {
|
|
Logger.debug(`[AudioFileScanner] Smart track order for "${libraryItemRelPath}" using track key ${trackKey}`)
|
|
audioFiles.sort((a, b) => a[trackKey] - b[trackKey])
|
|
}
|
|
|
|
for (let i = 0; i < audioFiles.length; i++) {
|
|
audioFiles[i].index = i + 1
|
|
}
|
|
return audioFiles
|
|
}
|
|
|
|
/**
|
|
* Get track and disc number from audio filename
|
|
* @param {{title:string, subtitle:string, series:string, sequence:string, publishedYear:string, narrators:string}} mediaMetadataFromScan
|
|
* @param {LibraryItem.LibraryFileObject} audioLibraryFile
|
|
* @returns {{trackNumber:number, discNumber:number}}
|
|
*/
|
|
getTrackAndDiscNumberFromFilename(mediaMetadataFromScan, audioLibraryFile) {
|
|
const { title, author, series, publishedYear } = mediaMetadataFromScan
|
|
const { filename, path } = audioLibraryFile.metadata
|
|
let partbasename = Path.basename(filename, Path.extname(filename))
|
|
|
|
// Remove title, author, series, and publishedYear from filename if there
|
|
if (title) partbasename = partbasename.replace(title, '')
|
|
if (author) partbasename = partbasename.replace(author, '')
|
|
if (series) partbasename = partbasename.replace(series, '')
|
|
if (publishedYear) partbasename = partbasename.replace(publishedYear)
|
|
|
|
// Look for disc number
|
|
let discNumber = null
|
|
const discMatch = partbasename.match(/\b(disc|cd) ?(\d\d?)\b/i)
|
|
if (discMatch && discMatch.length > 2 && discMatch[2]) {
|
|
if (!isNaN(discMatch[2])) {
|
|
discNumber = Number(discMatch[2])
|
|
}
|
|
|
|
// Remove disc number from filename
|
|
partbasename = partbasename.replace(/\b(disc|cd) ?(\d\d?)\b/i, '')
|
|
}
|
|
|
|
// Look for disc number in folder path e.g. /Book Title/CD01/audiofile.mp3
|
|
const pathdir = Path.dirname(path).split('/').pop()
|
|
if (pathdir && /^cd\d{1,3}$/i.test(pathdir)) {
|
|
const discFromFolder = Number(pathdir.replace(/cd/i, ''))
|
|
if (!isNaN(discFromFolder) && discFromFolder !== null) discNumber = discFromFolder
|
|
}
|
|
|
|
const numbersinpath = partbasename.match(/\d{1,4}/g)
|
|
const trackNumber = numbersinpath && numbersinpath.length ? parseInt(numbersinpath[0]) : null
|
|
return {
|
|
trackNumber,
|
|
discNumber
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {string} mediaType
|
|
* @param {LibraryItem.LibraryFileObject} libraryFile
|
|
* @param {{title:string, subtitle:string, series:string, sequence:string, publishedYear:string, narrators:string}} mediaMetadataFromScan
|
|
* @returns {Promise<AudioFile>}
|
|
*/
|
|
async scan(mediaType, libraryFile, mediaMetadataFromScan) {
|
|
const probeData = await prober.probe(libraryFile.metadata.path)
|
|
|
|
if (probeData.error) {
|
|
Logger.error(`[AudioFileScanner] ${probeData.error} : "${libraryFile.metadata.path}"`)
|
|
return null
|
|
}
|
|
|
|
if (!probeData.audioStream) {
|
|
Logger.error('[AudioFileScanner] Invalid audio file no audio stream')
|
|
return null
|
|
}
|
|
|
|
const audioFile = new AudioFile()
|
|
audioFile.trackNumFromMeta = probeData.audioMetaTags.trackNumber
|
|
audioFile.discNumFromMeta = probeData.audioMetaTags.discNumber
|
|
if (mediaType === 'book') {
|
|
const { trackNumber, discNumber } = this.getTrackAndDiscNumberFromFilename(mediaMetadataFromScan, libraryFile)
|
|
audioFile.trackNumFromFilename = trackNumber
|
|
audioFile.discNumFromFilename = discNumber
|
|
}
|
|
audioFile.setDataFromProbe(libraryFile, probeData)
|
|
|
|
return audioFile
|
|
}
|
|
|
|
/**
|
|
* Scan LibraryFiles and return AudioFiles
|
|
* @param {string} mediaType
|
|
* @param {import('./LibraryItemScanData')} libraryItemScanData
|
|
* @param {LibraryItem.LibraryFileObject[]} audioLibraryFiles
|
|
* @returns {Promise<AudioFile[]>}
|
|
*/
|
|
async executeMediaFileScans(mediaType, libraryItemScanData, audioLibraryFiles) {
|
|
const batchSize = 32
|
|
const results = []
|
|
for (let batch = 0; batch < audioLibraryFiles.length; batch += batchSize) {
|
|
const proms = []
|
|
for (let i = batch; i < Math.min(batch + batchSize, audioLibraryFiles.length); i++) {
|
|
proms.push(this.scan(mediaType, audioLibraryFiles[i], libraryItemScanData.mediaMetadata))
|
|
}
|
|
results.push(...await Promise.all(proms).then((scanResults) => scanResults.filter(sr => sr)))
|
|
}
|
|
|
|
return results
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {AudioFile} audioFile
|
|
* @returns {object}
|
|
*/
|
|
probeAudioFile(audioFile) {
|
|
Logger.debug(`[AudioFileScanner] Running ffprobe for audio file at "${audioFile.metadata.path}"`)
|
|
return prober.rawProbe(audioFile.metadata.path)
|
|
}
|
|
|
|
/**
|
|
* Set book metadata & chapters from audio file meta tags
|
|
*
|
|
* @param {string} bookTitle
|
|
* @param {import('../models/Book').AudioFileObject} audioFile
|
|
* @param {Object} bookMetadata
|
|
* @param {import('./LibraryScan')} libraryScan
|
|
*/
|
|
setBookMetadataFromAudioMetaTags(bookTitle, audioFiles, bookMetadata, libraryScan) {
|
|
const MetadataMapArray = [
|
|
{
|
|
tag: 'tagComposer',
|
|
key: 'narrators'
|
|
},
|
|
{
|
|
tag: 'tagDescription',
|
|
altTag: 'tagComment',
|
|
key: 'description'
|
|
},
|
|
{
|
|
tag: 'tagPublisher',
|
|
key: 'publisher'
|
|
},
|
|
{
|
|
tag: 'tagDate',
|
|
key: 'publishedYear'
|
|
},
|
|
{
|
|
tag: 'tagSubtitle',
|
|
key: 'subtitle'
|
|
},
|
|
{
|
|
tag: 'tagAlbum',
|
|
altTag: 'tagTitle',
|
|
key: 'title',
|
|
},
|
|
{
|
|
tag: 'tagArtist',
|
|
altTag: 'tagAlbumArtist',
|
|
key: 'authors'
|
|
},
|
|
{
|
|
tag: 'tagGenre',
|
|
key: 'genres'
|
|
},
|
|
{
|
|
tag: 'tagSeries',
|
|
key: 'series'
|
|
},
|
|
{
|
|
tag: 'tagIsbn',
|
|
key: 'isbn'
|
|
},
|
|
{
|
|
tag: 'tagLanguage',
|
|
key: 'language'
|
|
},
|
|
{
|
|
tag: 'tagASIN',
|
|
key: 'asin'
|
|
}
|
|
]
|
|
|
|
const firstScannedFile = audioFiles[0]
|
|
const audioFileMetaTags = firstScannedFile.metaTags
|
|
MetadataMapArray.forEach((mapping) => {
|
|
let value = audioFileMetaTags[mapping.tag]
|
|
if (!value && mapping.altTag) {
|
|
value = audioFileMetaTags[mapping.altTag]
|
|
}
|
|
|
|
if (value && typeof value === 'string') {
|
|
value = value.trim() // Trim whitespace
|
|
|
|
if (mapping.key === 'narrators') {
|
|
bookMetadata.narrators = parseNameString.parse(value)?.names || []
|
|
} else if (mapping.key === 'authors') {
|
|
bookMetadata.authors = parseNameString.parse(value)?.names || []
|
|
} else if (mapping.key === 'genres') {
|
|
bookMetadata.genres = this.parseGenresString(value)
|
|
} else if (mapping.key === 'series') {
|
|
bookMetadata.series = [
|
|
{
|
|
name: value,
|
|
sequence: audioFileMetaTags.tagSeriesPart || null
|
|
}
|
|
]
|
|
} else {
|
|
bookMetadata[mapping.key] = value
|
|
}
|
|
}
|
|
})
|
|
|
|
// Set chapters
|
|
const chapters = this.getBookChaptersFromAudioFiles(bookTitle, audioFiles, libraryScan)
|
|
if (chapters.length) {
|
|
bookMetadata.chapters = chapters
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set podcast metadata from first audio file
|
|
*
|
|
* @param {import('../models/Book').AudioFileObject} audioFile
|
|
* @param {Object} podcastMetadata
|
|
* @param {import('./LibraryScan')} libraryScan
|
|
*/
|
|
setPodcastMetadataFromAudioMetaTags(audioFile, podcastMetadata, libraryScan) {
|
|
const audioFileMetaTags = audioFile.metaTags
|
|
|
|
const MetadataMapArray = [
|
|
{
|
|
tag: 'tagAlbum',
|
|
altTag: 'tagSeries',
|
|
key: 'title'
|
|
},
|
|
{
|
|
tag: 'tagArtist',
|
|
key: 'author'
|
|
},
|
|
{
|
|
tag: 'tagGenre',
|
|
key: 'genres'
|
|
},
|
|
{
|
|
tag: 'tagLanguage',
|
|
key: 'language'
|
|
},
|
|
{
|
|
tag: 'tagItunesId',
|
|
key: 'itunesId'
|
|
},
|
|
{
|
|
tag: 'tagPodcastType',
|
|
key: 'podcastType',
|
|
}
|
|
]
|
|
|
|
MetadataMapArray.forEach((mapping) => {
|
|
let value = audioFileMetaTags[mapping.tag]
|
|
let tagToUse = mapping.tag
|
|
if (!value && mapping.altTag) {
|
|
value = audioFileMetaTags[mapping.altTag]
|
|
tagToUse = mapping.altTag
|
|
}
|
|
|
|
if (value && typeof value === 'string') {
|
|
value = value.trim() // Trim whitespace
|
|
|
|
if (mapping.key === 'genres') {
|
|
podcastMetadata.genres = this.parseGenresString(value)
|
|
libraryScan.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastMetadata.genres.join(', ')}`)
|
|
} else {
|
|
podcastMetadata[mapping.key] = value
|
|
libraryScan.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastMetadata[mapping.key]}`)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {import('../models/PodcastEpisode')} podcastEpisode Not the model when creating new podcast
|
|
* @param {import('./ScanLogger')} scanLogger
|
|
*/
|
|
setPodcastEpisodeMetadataFromAudioMetaTags(podcastEpisode, scanLogger) {
|
|
const MetadataMapArray = [
|
|
{
|
|
tag: 'tagComment',
|
|
altTag: 'tagSubtitle',
|
|
key: 'description'
|
|
},
|
|
{
|
|
tag: 'tagSubtitle',
|
|
key: 'subtitle'
|
|
},
|
|
{
|
|
tag: 'tagDate',
|
|
key: 'pubDate'
|
|
},
|
|
{
|
|
tag: 'tagDisc',
|
|
key: 'season',
|
|
},
|
|
{
|
|
tag: 'tagTrack',
|
|
altTag: 'tagSeriesPart',
|
|
key: 'episode'
|
|
},
|
|
{
|
|
tag: 'tagTitle',
|
|
key: 'title'
|
|
},
|
|
{
|
|
tag: 'tagEpisodeType',
|
|
key: 'episodeType'
|
|
}
|
|
]
|
|
|
|
const audioFileMetaTags = podcastEpisode.audioFile.metaTags
|
|
MetadataMapArray.forEach((mapping) => {
|
|
let value = audioFileMetaTags[mapping.tag]
|
|
let tagToUse = mapping.tag
|
|
if (!value && mapping.altTag) {
|
|
tagToUse = mapping.altTag
|
|
value = audioFileMetaTags[mapping.altTag]
|
|
}
|
|
|
|
if (value && typeof value === 'string') {
|
|
value = value.trim() // Trim whitespace
|
|
|
|
if (mapping.key === 'pubDate') {
|
|
const pubJsDate = new Date(value)
|
|
if (pubJsDate && !isNaN(pubJsDate)) {
|
|
podcastEpisode.publishedAt = pubJsDate.valueOf()
|
|
podcastEpisode.pubDate = value
|
|
scanLogger.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastEpisode[mapping.key]}`)
|
|
} else {
|
|
scanLogger.addLog(LogLevel.WARN, `Mapping pubDate with tag ${tagToUse} has invalid date "${value}"`)
|
|
}
|
|
} else if (mapping.key === 'episodeType') {
|
|
if (['full', 'trailer', 'bonus'].includes(value)) {
|
|
podcastEpisode.episodeType = value
|
|
scanLogger.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastEpisode[mapping.key]}`)
|
|
} else {
|
|
scanLogger.addLog(LogLevel.WARN, `Mapping episodeType with invalid value "${value}". Must be one of [full, trailer, bonus].`)
|
|
}
|
|
} else {
|
|
podcastEpisode[mapping.key] = value
|
|
scanLogger.addLog(LogLevel.DEBUG, `Mapping metadata to key ${tagToUse} => ${mapping.key}: ${podcastEpisode[mapping.key]}`)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
/**
|
|
* @param {string} bookTitle
|
|
* @param {AudioFile[]} audioFiles
|
|
* @param {import('./LibraryScan')} libraryScan
|
|
* @returns {import('../models/Book').ChapterObject[]}
|
|
*/
|
|
getBookChaptersFromAudioFiles(bookTitle, audioFiles, libraryScan) {
|
|
// If overdrive media markers are present then use those instead
|
|
const overdriveChapters = parseOverdriveMediaMarkersAsChapters(audioFiles)
|
|
if (overdriveChapters?.length) {
|
|
libraryScan.addLog(LogLevel.DEBUG, 'Overdrive Media Markers and preference found! Using these for chapter definitions')
|
|
|
|
return overdriveChapters
|
|
}
|
|
|
|
let chapters = []
|
|
|
|
// If first audio file has embedded chapters then use embedded chapters
|
|
if (audioFiles[0].chapters?.length) {
|
|
// If all files chapters are the same, then only make chapters for the first file
|
|
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) {
|
|
const afChapters = file.chapters?.map((c) => ({
|
|
...c,
|
|
id: c.id + currChapterId,
|
|
start: c.start + currStartTime,
|
|
end: c.end + currStartTime,
|
|
})) ?? []
|
|
chapters = chapters.concat(afChapters)
|
|
|
|
currChapterId += file.chapters?.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() |