Wegener Communications 6420 - Manual (Page 89)

iPump 6420 User’s Manual
www.wegener.com 800070-01 Rev B Chapter 3, Page 85
Figure 3-18: Example of using the SHUFFLE file selection keyword
Use of SHUFFLE keyword, a simple playlist example:
Consider the following playlist definition:
Note that each time this playlist is invoked, it will play 3 files, each randomly selected from the /
assets/Spots directory using the SHUFFLE keyword.
1. A command is received to play this playlist on decoder 1. When the first SHUFFLE
keyword is reached, the Spots directory listing is shuffled randomly in the following order with
the first item (HomeDepot_2.mp2) returned as the file to play:
2. For the remainder of the playlist, the next 2 files (CocaCola_2.mp2 and
HomeDepot_1.mp2) will be played.
3. The next time the receiver is commanded to play this playlist, when it reaches the first
SHUFFLE keyword it will play the last unplayed file CocaCola_1.mp2 .
4. When control reaches to the next entry with the SHUFFLE keyword, the /assets/Spots
directory listing is reshuffled and the new first item is returned (HomeDepot_1.mp2). This is
then played:
5. To finish on this execution of the playlist, the last SHUFFLE entry file is played
(CocaCola_1.mp2). Notice that within this particular playlist execution, the same file is played
twice because of the reshuffle. However, the same file is not allowed to play back-to-back.
HomeDepot_2.mp2
CocaCola_2.mp2
HomeDepot_1.mp2
CocaCola_1.mp2
/assets/Song/Song_A.mp2
/assets/Spots/SHUFFLE
/assets/Song/Song_B.mp2
/assets/Spots/SHUFFLE
/assets/Song/Song_C.mp2
/assets/Spots/SHUFFLE
HomeDepot_1.mp2
CocaCola_1.mp2
HomeDepot_2.mp2
CocaCola_2.mp2