6 <draw pipeline schematics here>
10 - dvdnav reads the ifo file. A set of events are generated to configure
11 various elements in the pipeline. These would include:
15 - first the src will read the DVD menu. this will contain mpeg2 data
16 and spu/nav info. after the menu is sent down the pipeline
17 the nav decoder waits for input somehow. The pipeline keeps on
18 playing to animate the menus.
20 - somehow a button is pressed on the menu: a method is triggered in
21 the dvdnav plugin to tell it button X was pressed (event? app?).
23 - dvdnav reacts and starts to stream other data.
25 - nav packets in the stream indicate what can happen next.
31 - pressing the hotkey to bring up the menu triggers a method in dvdnav
32 which will send down nav info downstream to bring up the menu.
33 A background picture (I frame) is sent downstream too.
35 - nav info can also happen while playing the movie. This can highlite
36 some buttons the user can press.
38 - selecting a button triggers some color/compositing changes in SPU/NAVdec
39 and an action on dvdnav.