Time Code
Teletext (25 Hz Mode only)
VBI Lines
Each VBI line can be individually configured as to the format of VBI data that should be extracted from that line.
Video Index
On (Default)
lines.
These are lines 11 and 324 in 25 Hz and 14 and 277 in
29.97 Hz
On (User)
Video Index extraction is enabled, but the user must
specify the VBI lines from which it is to be extracted.
Video Index Field 1
Valid VBI Line (dependant on the selected video input
format)
The field 1 VBI line to extract Video Index from when
Video Index is On (User).
Video Index Field 2
Valid VBI Line (dependant on the selected video input
format)
The field 1 VBI line to extract Video Index from when
Video Index is On (User).
SMPTE 2016
On Off
Controls whether aspect ratio information is extracted
from the input in accordance with SMPTE 2016
AFD Sustain
Maintain previously received AFD code for the period
specified in Sustain Timeout then drop to default, i.e.
code 1000
Maintain previously received AFD code indefinitely.
Maintain previously received AFD code for the specified
in the Sustain Timeout field then switch AFD off.
AFD Sustain
Timeout
0, 1, 2, 3, 4, 5, 10, 20, 50, 100, 120
The number of frames that the AFD code will be
sustained for.
AFD action on
reserved codes
Pass through unchanged.
Defines how reserved AFD codes are handled if they
are received.
Change code to 0000
AR Signalling
Location
Sequence Header
Defines where the aspect ratio is inserted in the output
stream.
Picture Header
Sequence Header and Picture Header
AR Signalling
Output Control
Off, AFD Only, AFD and Bar Data
Defines what aspect ratio information is inserted in the
output stream.
Parameter
Values
Description
TC Mode
Off
No time code inserted in the output.
External, zero on loss
The time code extracted from the input video is
inserted in the output, but if there is no time code
extracted then 0 time is inserted.
External, free wheel on loss
The time code extracted from the input video is
inserted in the output, but if there is no time code
extracted then the inserted time code will free wheel.
Internal
An internally generated time code is inserted in to the
output
TC Ext. Source
Auto, ANC VITC1, ANC VITC2, ANC LTC, VBI VITC
Selects from where in the input video the timecode is
extracted. If Auto is selected then the card will attempt
to extract time codes from all sources but will choose
which to use with the following priority; ANC VITC1,
ANC VITC2, ANC LTC, VBI VITC.
TC Drop Frames
Parameter
Values
Description
Teletext Source
Off, VBI Lines
Controls whether teletext is extracted from VBI or not.
Teletext
Packetisation
Normal (ETS 300-472)
Controls how the teletext data is packetised in to a
component data stream.
Legacy (ETS 301-775)
Min # Teletext
Packets
0 to 3
Defines the minimum number of teletext packets
generated per field, even if there is no teletext data.
PTS On Teletext
Off, On
Controls whether a PTS value is included in the output
teletext packets.
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