Read ID3 Tags of an MP3 file

Question

I am trying to read ID3 from a mp3 file thats locally stored in the SD card.

I want to basically fetch

1. Title
2. Artist
3. Album
4. Track Length
5. Album Art

Salbu

Answer 1

You can get all of this using MediaMetadataRetriever

MediaMetadataRetriever mmr = new MediaMetadataRetriever();
mmr.setDataSource(filePath);

String albumName =
     mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ALBUM);

Gymkhana

I am not able to import the MediaMetadataRetriever. Eclipse doesn't provide the option. any idea ? – Salbu

@Reno: I tried your suggestion, but I get no useful info (basically null), despite the fact that I do see id3 tags with other software... – Ossa

FYI, there's a bug in later versions of Android (4.1+) that prevents this from working when using URIs. – Wilsonwilt

I want to retrieve Album Art, how can I achieve it – Presuppose

Unfortunately, this is broken (get null almost everywhere). – Ossa

returns null most of the time, my file has iD3 tag version 2.3 and android kitkat – Wilmerwilmette

Not working.. getting IllegalArgumentException while calling setDataSource() – Tosspot

Answer 2

Check the MP3 file format. Basically, you have to read the last 128 bytes of the file; if the first 3 bytes are "TAG", carry on and read the fields you need; if not, the file doesn't have the info attached.

Bergren

i want to know how to implement it in Android. Any idea ? – Salbu

Create a InputStream from the file and a 128 byte buffer; read the last 128 bytes into the buffer; check the first 3 bytes of the buffer, should be TAG; read the relevant bytes using Arrays.copyOfRange; convert those bytes to int (for genre) or String (for everything else). – Bergren

It's not really that simple. There are more versions of tags, this easy you read only old version. – Private

Yeah, the "TAG" is ID3v1 and in IDv2 you have two versions as well. Tags that are 3 characters and others that are 4 characters... – Hako

Answer 3

if the last 128 byte begins with the token "TAG" the file has an ID3v1 (or ID3v1.1) tag. ID3v2.3 tags are located in the beginning of the file (suitable for streaming) indicated by the token "id3". I believe ID3v2.4 is indicated by "3DE", but i'm not sure...

Empirin

This was exactly the information I needed, thank you! I was trying to pattern match Bandcamp MP3s with Elixir and always got an error, because Bandcamp MP3s are ID3v2.3 tagged. Would upvote a hundred times, if I could. – Phono