Basic Screen Attributes

This forum is dedicated to the discussion of Screens within a Screenlist.

Basic Screen Attributes

Postby Cilutions Support » Tue Jun 14, 2011 4:01 pm

Each Screen offers a set of attributes which describe the general characteristics of the screen. These are:

    Name: A user-defined string which can be a helpful reference to individuals creating or modifying screens. This field has no impact on the DMB player when the screen is played. The screen name is included in certain run-time log files on during player execution so it can be also be a helpful reference during log analysis.
    OnBoot Only: Yes indicates that the corresponding screen should only be played once after boot-up (or when the player is first started), then not played again. This is typically used to display configuration information (e.g., IP Address, STB Serialno) during start-up, the kind of information interesting to an administrator. No indicates a normal screen. Default: No
    Active: Yes indicates that this screen is active. No indicates that this screen is not active and should be skipped over by the media player when playing the screenlist. Default: Yes
    Background Color: If the assets within the screen do not cover the entire screen dimensions as described in the screenlist attributes (e.g., 1280x720 for HD landscape mode) then this is the setting for the background color (because some part of the background will be viewable on the TV). Values are represented as ARGB notation (e.g., 255.0.0.0 for black). The first digit represents transparency with 0 being fully transparent and 255 being fully opaque.
    Duration: The number of seconds this screen should be active. This is an optional field. It represents one of the ways a screen can exit; where the media player will stop playing the current screen and start playing the next active screen in the screenlist. If it is not set, and the schedule file is also not set, then the screen will only exit when the player finishes playing the last video in the video playlist (reference the video asset description for more details).
    Exit on Video End: Yes indicates that the screen should remain active, even if the duration or schedule file time has expired, until the currently playing video finishes. This can be used to make sure that a video is not cut-off during playback when a screen's duration expires. No indicates that the screen's duration is a firm limit and any video playing should be interrupted, even if it is not finished. Default: No
    Schedule File: A reference file which designates when the screen is active. The following example rule will play the screen each weekday from 6AM - 11AM:

    */*/*;*/*/*;6:*;10:*;Mon,Tue,Wed,Thu,Fri

    See the Duration attribute description above for more information on how a screen can exit.
    Jump to Screenlist: A flow construct which tells the player to switch control to another screenlist file (i.e., change channels).
    Surface Memory: An information tag, useful to the Screen Builder Operator only, which indicates how much memory all the combined assets on the associated screen consume. This useful reference applies to the target platform where the media player will "play" the screen. It is assumed that the Screen Builder operator knows the general limits of each target platform (e.g., an Amino A130/A530 STB should not exceed 18MBytes of screen memory during asset playback).
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