mp4 tag editing with java

Question

I want to edit tags of mp4 video file in java. I find out mp4parser on google code but there is no enough documentation for that. What would be the best lib for editing mp4 video tags in java. And is there any limitation for comment tag in mp4 video??

Answer 1

So by tags you mean things like title, artist, album etc? In this case you can try the new API available in JCodec (org.jcodec.movtool.MetadataEditor). It also has a CLI (org.jcodec.movtool.MetadataEditorMain).

Here's the basic usage:

# Changes the author of the movie
./metaedit -f -si ©ART=New\ value file.mov

or the same thing via the Java API:

MetadataEditor mediaMeta = MetadataEditor.createFrom(new
    File("file.mp4"));
Map<Integer, MetaValue> meta = mediaMeta.getItunesMeta();
meta.put(0xa9415254, MetaValue.createString("New value")); // fourcc for '©ART'
mediaMeta.save(false); // fast mode is off

You can find a complete documentation here: http://jcodec.org/docs/working_with_mp4_metadata.html