Fix: Scanner check path and inode value for removed books, scanner v5 outlined

server/scanner/AudioProbeData.js

@@ -0,0 +1,74 @@
+const AudioFileMetadata = require('../objects/AudioFileMetadata')
+
+class AudioProbeData {
+  constructor() {
+    this.embeddedCoverArt = null
+    this.format = null
+    this.duration = null
+    this.size = null
+    this.bitRate = null
+    this.codec = null
+    this.timeBase = null
+    this.language = null
+    this.channelLayout = null
+    this.channels = null
+    this.sampleRate = null
+    this.chapters = []
+
+    this.audioFileMetadata = null
+
+    this.trackNumber = null
+    this.trackTotal = null
+  }
+
+  getDefaultAudioStream(audioStreams) {
+    if (audioStreams.length === 1) return audioStreams[0]
+    var defaultStream = audioStreams.find(a => a.is_default)
+    if (!defaultStream) return audioStreams[0]
+    return defaultStream
+  }
+
+  getEmbeddedCoverArt(videoStream) {
+    const ImageCodecs = ['mjpeg', 'jpeg', 'png']
+    return ImageCodecs.includes(videoStream.codec) ? videoStream.codec : null
+  }
+
+  setData(data) {
+    var audioStream = getDefaultAudioStream(data.audio_streams)
+
+    this.embeddedCoverArt = data.video_stream ? this.getEmbeddedCoverArt(data.video_stream) : false
+    this.format = data.format
+    this.duration = data.duration
+    this.size = data.size
+    this.bitRate = audioStream.bit_rate || data.bit_rate
+    this.codec = audioStream.codec
+    this.timeBase = audioStream.time_base
+    this.language = audioStream.language
+    this.channelLayout = audioStream.channel_layout
+    this.channels = audioStream.channels
+    this.sampleRate = audioStream.sample_rate
+    this.chapters = data.chapters || []
+
+    var metatags = {}
+    for (const key in data) {
+      if (data[key] && key.startsWith('file_tag')) {
+        metatags[key] = data[key]
+      }
+    }
+
+    this.audioFileMetadata = new AudioFileMetadata()
+    this.audioFileMetadata.setData(metatags)
+
+    // Track ID3 tag might be "3/10" or just "3"
+    if (this.audioFileMetadata.tagTrack) {
+      var trackParts = this.audioFileMetadata.tagTrack.split('/').map(part => Number(part))
+      if (trackParts.length > 0) {
+        this.trackNumber = trackParts[0]
+      }
+      if (trackParts.length > 1) {
+        this.trackTotal = trackParts[1]
+      }
+    }
+  }
+}
+module.exports = AudioProbeData