[RESOLVED] Verify MP3

[DigiRev]

How can I do server-side verification to make sure the uploaded file is an MP3?

Using the MIME type/content type works fine for Internet Explorer, but doesn't seem to work with FireFox.

I don't want to rely on reading ID3 tags since not all MP3s have them. I appreciate any help.

[kows]

you could probably use PEAR's mp3_id class. from a glance, it looks like the read method in that class will give an error if reading a non-mp3 file.

http://pear.php.net/package/MP3_Id/d...tml#methodread

[DigiRev]

Thanks, I'm going to look into that & test it out.

[DigiRev]

Doesn't seem to be working. It only seems to be able to read ID3 tags (artist, genre, etc.). As I said, I don't want to verify an MP3 by it's ID tags, because not all MP3s contain them.

And it also doesn't seem to raise an error if the file is not an MP3.

I want something that can read the length, channels (mono/stereo), bitrate, and sample rate (44100, 48000, etc.).

Any ideas?

[kows]

http://getid3.sourceforge.net/

[DigiRev]

Thanks I'm looking at that now.

[DigiRev]

Works perfectly, thanks a lot!

[CornedBee]

You can also check the file directly. An MP3 file that has no ID3v2 header starts with the bit pattern 111111111110, followed by 111 or 011.