Flowplayer (> version 3.1.1) allows you to configure in-stream playlists.
These are playlists inside a clip. The above demo shows three in-stream clips
before, in the middle and after the main video.
In-stream playlists are configured identically to normal playlists. They are
simply placed inside a clip rather than in the root of the configuration.
The duration property specifies the timing of the clip in relation to the