FOCUS Enhancements 3.2 - Manual (Page 121)

Updating Video Playback
107
FTP Updating Order
The Firefly system will look for an update file following a specific
order. It will proceed sequentially through this order until it finds a
matching file and will then proceed to the When moving font files
(.ttf) via FTP, set FTP mode to binary. on page 107.
1. siteid.tar
2. firefly.tar
3. siteid.fpl
4. firefly.fpl
5. siteid.fsc
6. firefly.fsc
FTP Font Files (.ttf)
When moving font files (.ttf) via FTP, set FTP mode to binary.
Playlist Parsing Routine
Once the new playlist(s) has been copied to the Firefly, it is
analyzed to determine which MPEG video files are required to
play it. Firefly then checks its own storage to determine if any of
these videos are already present. Any files that are not present are
copied from the FTP site. Any files that are found to exist already
on the Firefly's hard drive are compared against the file by the
same name on the FTP site. If the file on the FTP site is found to
be identical in size, this file is not copied. If the file on the FTP site
is found to be of a different size, the file is copied from the FTP
site to overwrite the pre-existing file. The file size is chosen as the
key in this decision as it is virtually impossible to create two
MPEG files with different content that come out to be exactly the
same size. This is a much more reliable indicator than creation date
or other conventional means.
Once all of the required video files are copied from the FTP site,
the Firefly will begin playing the new playlist or schedule.