Do we need license just for using f4fpackager?

Do we need any license only for package Adobe HDS content?

1) I have heard there is a video duration timelimit on f4fpackager, (the 10min time limit ) , is this time limit of AMS or f4fpackager?

2) Do we need any license we are just a Content Transcoding company? So basically if we generate Adobe HDS content for our clients to deliver to end users. Since in this case, it will be our clients who are streaming the content, and we are just packaging the content.

Do we need license just to package the content? and How come i was able to use it for 15mins? are there any other limitations