Hi all,
I want to know the version of a mp3 file format.
What should I do?
I am reading file properties with java programs
+3
A:
The website wotsit.org has specifications and descriptions of file formats. Wikipedia is also often a good starting point. Read MP3 on Wikipedia.
If your goal is just to read the metadata from MP3 files (track title, artist name, etc.): That information is stored in ID3 tags inside the file. There are several Java libraries available for reading ID3 tags. Google for "java id3" and you'll find them.
Jesper
2009-11-01 09:11:13
JasperI am not using any library, as this project has restriction to use any thing else than java core. :( So these are not a option. my project needs to read metadata form any MP3 file. But after going through many docs on ID3 subject. i got to know there are many versions for this. like id3v1, so how should I find which version of file format is being used by a MP3 file.
vijay.shad
2009-11-01 10:14:08
You would have to search the beginning and end of the file; there is no other indication of the presence or absence of ID3v1 or ID3v2 tags; it is entirely possible both will be present. (Ugh: not using any libraries is an absolutely ridiculous limitation for anything but homework.)
bobince
2009-11-01 13:32:39
well, i have downloaded a library and trying to copy code from.i think i will be able to get out with my homework.
vijay.shad
2009-11-01 14:38:01
If you're not allowed to use third-party libraries, then there's nothing you can do except for programming it yourself. The ID3 website (link is in my answer above) has good documentation, I think it's not that hard to write a basic ID3 reader program yourself.
Jesper
2009-11-02 08:52:53