how do you determine if a file is a media file?

[Klaus Major]

Hi Josh,

> I am working on a handler to determine whether a file is a media  
> file. (for OS X and Windows)
>
> First, I check if the file has a proper extension (.mov, .jpg,  
> etc.) if so, I assume the extension is correct (a leap of faith  
> perhaps)
>
> Second, I try to get the OS X filetype from the detailed files.  
> Some movies properly list "Moov", some don't.
>
> Third, was going to try loading the file into a Player or Image  
> object and see if there's an error, but many types of files will  
> load into those objects fine (like text files)
>
> So, I'm wondering if anyone has any tips beyond these things...

again this might be a case for Trevor's EXCELLENT QT External :-)

 From the docs:
function qtGetMovieFileType (FilePath)
Description:
Returns the type of a file on disk.
Parameters:
FilePath: Path to movie file.
Return:
Type (multiframe graphic, image, qtvr, flash, video, sound, unknown,  
unsupported)

Maybe that can help you to decide to load a file into a player or not.


Regards

Klaus Major
klaus at major-k.de
http://www.major-k.de

P.S.
Perhaps you should print out the docs and put them under your pillow ;-)