Table 5.88 Teletext Component Parameters
Parameter Values Description
PID 32 to 8190 Sets the packet identifier associated with the component.
Bit Rate Weighting Fixed
Specifies the weight associated to the component in the
Bit Rate Tracking algorithm. For audio stream, this is Fixed
and read only.
5.5.3.4.5 VBI and ANC Stream Configuration
This section describes the parameters available for setting up VBI and ANC
streams.
VBI and Ancillary Data
This section gives the parameters that have an effect on what ancillary data is
extracted and how the data is transmitted.
The following parameters are available on the VBI tab of the Properties widget on the
Service Configuration page when an ANC stream is selected in the Outputs widget. The
same parameters can be accessed through the Advanced/CE-x Analogue/Video/Video
1/Input/VBI Extraction menu on the front panel.
Table 5.89 VBI and Ancillary Data Parameters
Parameter Values Description
Enable VBI Pass-thru
Mode
Off, On
Enable Pass-thru of VBI, ANC and Teletext data from
specified PIDs, instead of extracting them from SDI. Read
only parameter. Not supported in this release.
Description Control
VBI Descriptor Mode Standard, Legacy, Philips, User
The source for Closed Captions data encoded as part of
the Video Stream (only applicable when Video Frame Rate
is 29.97 Hz)
VBI Data Descriptor
Insertion
Off, On
Controls if the VBI Data Descriptor is inserted into the
PMT. Available only if VBI Descriptor Mode is set to User.
VBI Teletext Descriptor
Insertion
Off, On
Controls if the VBI Teletext Descriptor is inserted into the
PMT. Available only if VBI Descriptor Mode is set to User.
Teletext Descriptor
Insertion
Off, On
Controls if the Teletext Descriptor is inserted into the PMT.
Available only if VBI Descriptor Mode is set to User.
Proprietary Descriptor
Insertion
Off, On
Controls if the Legacy Proprietary Descriptor is inserted
into the PMT. Available only if VBI Descriptor Mode is set
to User.
Aspect Ratio (AR) Signaling
Video Index Off, On (Default), On (User)
Controls the extraction of Video Index (and thus whether
Video Index can be used as source of AR info).
Default: The default lines will be set to decode Video Index
(11/324 in 25Hz, 14/277 in 29.97 Hz)
User: The User defines the lines used to decode Video
Index.
Video Index Field 1 10 to 22 Specifies which line contains the video index in field 1.
Video Index Field 2 10 to 22 Specifies which line contains the video index in field 2.
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