Supported Audio Tag Containers
- MP3 (ID3v2.3 / ID3v2.4 APIC frames): Extracts front cover, back cover, and artist image frames directly from the binary header.
- FLAC & OGG (METADATA_BLOCK_PICTURE): Extracts high-resolution lossless Vorbis picture blocks up to 4000×4000px.
- M4A / AAC / Apple Lossless (covr atom): Extracts embedded iTunes and Apple Music artwork atoms.