TagLibFileRefMBS.Constructor(file as folderitem)

Please point to valid audio file.
May raise error exception.

Uses TagLib, an open source library to read metadata from audio files, e.g. ID3 tags.
Currently it supports both ID3v1 and ID3v2 for MP3 files, Ogg Vorbis comments and ID3 tags and Vorbis comments in FLAC, MPC, Speex, WavPack, TrueAudio, WAV, AIFF, MP4 and ASF files.

TagLibFileRefMBS.CoverArt as Memoryblock

// for testing a test file on desktop
dim ff as FolderItem = SpecialFolder.Desktop.Child("test.mp3")

Dim f As New TagLibFileRefMBS(ff)

// show cover art
Dim cover As MemoryBlock = f.CoverArt
If cover <> Nil Then
  Dim p As Picture = picture.FromData(cover)
  
  If p <> Nil Then
    Dim pw As New PicWindow
    pw.Backdrop = p
  End If
End If

Should work for MP3, MP4 and FLAC files.
May return JPEG, PNG, GIF or BMP depending on what the file contains.
Result is nil, if there is no art found.

Some examples using this method:

• /Tools/LibTag/TagReader

TagLibFileRefMBS.Save as Boolean

TagLibFileRefMBS.SetProperties(Dic as Dictionary)

Dim file As FolderItem = SpecialFolder.Desktop.Child("test.mp3")

Dim tag As New TagLibFileRefMBS(file)
Dim dic As Dictionary = tag.Properties

Break // inspect dictionary

dic.Value("ARTIST") = "John Doe"
dic.Value("ALBUM") = Nil // clear this one

tag.SetProperties(dic)

If tag.Save Then
  MsgBox "OK"
Else
  MsgBox "Failed to save"
End If

Please provide dictionary with new tags.
If tags are nil values, we remove them. If they are text values, we update the text.