swf format verification?

[akonsu]

hello, can someone recommend a good library to verify whether a file
is in swf format (and ideally flv as well)? i need it to enable file
uploading on to my web site.

thanks
konstantin

 

[Bjoern Schliessmann]

hello, can someone recommend a good library to verify whether a
file is in swf format (and ideally flv as well)? i need it to
enable file uploading on to my web site.

Look how GNU "file" does it:

#------------------------------------------------------------------------------
# flash: file(1) magic for Macromedia Flash file format
#
# See
#
# http://www.macromedia.com/software/flash/open/
#
0 string FWS Macromedia Flash data,

3 byte x version %d

0 string CWS Macromedia Flash data (compressed),

3 byte x version %d

# From: Cal Peake <[email protected]>
0 string FLV Macromedia Flash Video

#
# From Dave Wilson
0 string AGD4\xbe\xb8\xbb\xcb\x00 Macromedia Freehand 9 Document

Regards,


Björn