Example of a customized VOD asset

#EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:7

#EXT-X-ASSET:AID=10

#EXTINF:9.9766,
seg1.ts

#EXTINF:9.9766,
seg2.ts

#EXTINF:9.9766,
seg3.ts

#EXT-X-AD:DURATION=10
#EXTINF:9.9766,
seg4.ts

#EXTINF:9.9766,
seg5.ts

#EXT-X-ENDLIST

Your application could set up the following scenarios:

A notification when #EXT-X-ASSET tags, or any other set of custom tag names to which you have subscribed, exist in the file.
Insert ads when an #EXT-X-AD tag, or any other custom tag name, is found in the stream.