Hierarchy display, Overview of the hierarchy display – Tektronix MTG100 User Manual
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MTG100 & MTG300 MPEG Generator User Manual
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Hierarchy Display
The MPEG generator displays the selected transport stream using a hierarchy
structure. This section describes the hierarchy display, defines each icon you may
encounter in the display, and describes the Bezel menu functions associated with
each type of hierarchy icon.
Overview of the Hierarchy Display
The MPEG generator uses icons displayed in a hierarchical structure to show the
interrelationship of transport stream components (see Figure 3-12). Additional
information about each stream component such as PID and Table ID numbers is
displayed next to each icon. Icons that represent data inserted by the user using
the MPEG generator are displayed with a blue background to distinguish them
from the standard transport stream icons.
The “+” symbol displayed to the left of some icons indicates that the item
includes lower-level transport stream components that are not displayed. The
symbol changes to “–” when the lower level components are displayed. To
expand or collapse the hierarchy, select the desired upper-level icon and press the
left control button.
When a transport stream contains more items than will display on the screen at
one time, a scroll bar appears at the right of the screen.
CAUTION. All PSI or PSIP information must be placed within the first 8 Mbytes
of a transport stream file downloaded using the MTG Comm application. If the
PSI or PSIP information is not in the first 8 Mbytes, the hierarchy icons for the
PSI or PSIP information may not be displayed correctly. Refer to Appen-
dix B:Using MTG Comm for File Transfers for more information about the
MTG Comm application.
The Icon cursor is used to select individual transport stream components as
represented by the icons. The Icon cursor is displayed as a red square (border)
surrounding a hierarchy icon (see Figure 3-12). Use the rotary knob or the arrow
buttons to move the Icon cursor through the hierarchy. The hierarchy display
scrolls (if applicable) when the Icon cursor reaches the top or bottom of the
displayed portion of the hierarchy.
When the pull-down menus are enabled, the Icon cursor is not displayed. Press
the front-panel MENU button to toggle control between the Icon cursor and the
pull-down menus.
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