Grass Valley Channel Composer v.1.6.2 - Manual (Page 62)

Channel Composer User Manual - Channel Composer User Manual- document version: 1.6.2 - 61
7.4.7 The Subtitle Applet
The get-sub-essences applet [included in the Commissioning Quick Start Channel Pack] is executed pre-
event and updates the scene parameters listed in the table below. Scene parameters are used to:
•
check if a subtitle essence is available, if not, the subtitle player is stopped
• start the subtitle player if a subtitle essence is available
• synchronize subtitle playout with the time in code in from the video
Parameter Value Explanation
1. essence name manual text: Subtitle Specifies the subtitle Essence name as
defined in TX/MAM, in this example
‘Subtitle’.
2. scenepar file
name
manual text: subtitle The applet updates this scene
parameter with the subtitle file name.
3. scenepar player
action
manual text: subtitle_player_action The applet updates this scene
parameter with the subtitle player action:
2: start (subtitle file present)
3: stop (no subtitle file present)
4. scenepar subtitle
inpoint
manual text: subtitle_inpoint The applet updates this scene
parameter with the video’s tc-in.
5. template name manual text: Subtitle Specifies the name of the subtitle
template, in this example ‘Subtitle’.
Note that the parameters and values can be renamed, but the order in which parameters are added to the
applet should match the table above.
Note that naming of the parameter values in the applet and the scene parameters in the template must
match.