CODEWITHSUNDEEP
androidmp3metadataandroid-assets
giozh
giozh

Reputation: 10078

Read mp3 metadata from assets folder

I have an app with some mp3 files stored inside a subfolder of assets folder. I obtain list of files in this way

context.getAssets().list("audio");

and results show it inside a listview. By doing this, what i see is a list of mp3 filenames. Now i don't want show filenames, but associated metadata for each file.

Upvotes: 1

Views: 2483

Answers (3)

William Seemann
William Seemann

Reputation: 3529

Copying the file to disk isn't necessary. MediaMetadataRetriever and FFmpegMediaMetadataRetriever both offer a setDataSource method that takes a FileDescriptor as an argument: 

FFmpegMediaMetadataRetriever metaRetriver = new FFmpegMediaMetadataRetriever();\
// or MediaMetadataRetriever metaRetriver = new MediaMetadataRetriever();

String path = "audio";

String [] files  = context.getAssets().list(path);

for (int i = 0; i < files.length; i++) {
    String file = path + "/" + files[i];

    AssetFileDescriptor afd = context.getAssets().openFd(file);

    metaRetriver.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());

    String album = metaRetriver.extractMetadata(FFmpegMediaMetadataRetriever.METADATA_KEY_ALBUM);
    String artist = metaRetriver.extractMetadata(FFmpegMediaMetadataRetriever.METADATA_KEY_ARTIST);
    String gener = metaRetriver.extractMetadata(FFmpegMediaMetadataRetriever.METADATA_KEY_GENRE);

    afd.close();
}

metaRetriver.release();

Upvotes: 3

Ichigo Kurosaki
Ichigo Kurosaki

Reputation: 3843

By metadata means name, title, time etc data if you want then you need to use MediaMetadataRetriever class to do so..

MediaMetadataRetriever metaRetriver = new MediaMetadataRetriever();
metaRetriver.setDataSource("path of song");
String album = metaRetriver.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ALBUM);

String artist = metaRetriver
    .extractMetadata(MediaMetadataRetriever.METADATA_KEY_ARTIST);
String gener=metaRetriver
                .extractMetadata(MediaMetadataRetriever.METADATA_KEY_GENRE);

Similarly you can extract other data also..
Hope it will help you.

Upvotes: 0

nomanr
nomanr

Reputation: 3775

Here you go. First get the file path as shown here

How to pass a file path which is in assets folder to File(String path)?

And then get metadata of audio as shown here

How to extract metadata from mp3?

Upvotes: 0

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