Comments on: Reading ID3 tags with JavaScript

By: MichaelThompson

MichaelThompson — Fri, 22 Aug 2008 13:43:16 +0000

@Schill: The problem is because there isn’t necessarily a standard, “these must be defined” set of ID3 tags for audio files. iTunes takes things a step further and adds proprietary tagging information in a non-standard field.

By: jseidelin

jseidelin — Wed, 20 Aug 2008 20:27:03 +0000

FWIW, it is now only requesting the actual tag data instead of downloading the entire file.

By: user24

user24 — Wed, 20 Aug 2008 08:56:49 +0000

neat, but I can't really see the application.. I've written a basic php id3 parser that some people might find useful :)

By: rcoup

rcoup — Wed, 20 Aug 2008 02:43:24 +0000

As an alternative, there's a Google App Engine app for extracting metadata from images and returning them as JSON: http://img2json.appspot.com/. I guess it'd be easy enough to do something similar for MP3s.

By: btopro

btopro — Wed, 20 Aug 2008 02:12:54 +0000

This could be very useful (and fast) in static / html / CD based media format. Granted, this is a very specialized use-case but for off-line applications that are reading the MP3′s locally this could be a cool option. You could build an offline Itunes type app w/ this to run through your MP3′s :) Cool idea

By: commadelimited

commadelimited — Tue, 19 Aug 2008 19:01:16 +0000

Sos…

AIR applications can already read file information. It’s built into the API.

By: shadedecho

shadedecho — Tue, 19 Aug 2008 17:33:06 +0000

if this library combined support for using flXHR instead of native XHR, this type of ‘binary’ data inspection could be performed cross-domain, instead of being limited to only using the native XHR on same-domain requests.

http://flxhr.flensed.com/

By: STHayden

STHayden — Tue, 19 Aug 2008 16:52:07 +0000

what about images? Is there anyway to read an images’s file size or Content Type?

I’m trying to find the best way to tell when amazon gives me an empty gif instead of a book cover.

By: Schill

Schill — Tue, 19 Aug 2008 15:48:43 +0000

For what it's worth, ID3V2 is the first 10 bytes of the MP3 (part of that defines the size of the ID3 content itself), much more logical; V1 is at the end. Flash is able to get this information via the Sound object in AS2/AS3, but getting the data (from a wide variety of fields) seems to be a little inconsistent from what I've found.

By: sos

sos — Tue, 19 Aug 2008 15:47:06 +0000

This could also be quite useful in Adobe Air applications. An AIR port of Amarok, now there’s a thought…. :-)