Reading FLV Dimensions - Width and Height

Hey guys,

I'm writing a script to verify that an uploaded FLV file is the right dimensions. I'm trying to use the GetID3 version, but I can't quite figure out the right syntax.

So far I'm getting the following when I attempt to run it through the class:

Array
(
    [fileformat] => flv
    [flv] => Array
        (
            [header] => Array
                (
                    [signature] => FLV
                    [version] => 1
                    [hasAudio] => 1
                    [hasVideo] => 1
                )

        )

    [playtime_seconds] => 0
    [audio] => Array
        (
            [codec] => 
            [sample_rate] => 
            [bits_per_sample] => 
            [channels] => 1
            [lossless] => 1
            [dataformat] => flv
        )

    [video] => Array
        (
            [codec] => 
            [dataformat] => flv
            [lossless] => 
        )

)

Code (markup):

But this tells me nothing I need to know!

Does anyone have any experience trying to do what I'm attempting here??