
3–16 • Operating Instructions
LDP-8242 User Manual (Iss. 03)
Closed Captioning
Provides support for closed captioning setup.
Closed Captioning Input Status
Displays incoming Closed Captioning status as follows:
• If closed captioning is present, a message similar to the example
shown left is displayed. Also displayed is the VANC line number of
the incoming closed captioning packet (or SD waveform-based
VANC line number).
• If no closed captioning is present in the video signal,
Not Present
or
Disabled
is displayed.
Note
: Packet closed captioning status
Captioning Rejected Due
To
message can appear due to the items described below. The
closed captioning function assesses cdp_identifier, cdp_frame_rate,
ccdata_present, and caption_service_active items contained in the
packet header to make the determinations listed below. Refer to
CEA-708-B for more information.
The closed captioning function does not support PAL closed
captioning standards.
Closed Captioning Output Insertion Control
Turns on or off the Closed Captioning on the output video.
Note
: When set to On, closed captioning is set to standard default
line number. See the section “Ancillary Data Line Number Locations
and Ranges” on page 3-9. SD output is locked to line 21.
The card does not check for conflicts on a given line number. Make
certain selected line is available and carrying no other data.
Closed Captioning HD Output Line
Selects the VANC line number (9 thru 41) for the closed caption data
when the output is HD.
Note
: Although the output line drop-down will allow any choice
within the 9 thru 41 range, the actual range is automatically
clamped (limited to) certain ranges to prevent inadvertent conflict
with active picture area depending on video format. See Ancillary
Data Line Number Locations and Ranges (p. 3-9) for more
information.
The card does not check for conflicts on a given line number. Make
certain the selected line is available and carrying no other data
unless existing metadata is to be intentionally overwritten.
HD packet-based display
SD waveform-based display
Message
Description
Unsupported
Frame Rate
Film rate closed-captioning (either as
pass-through or up/down conversion) is not
supported by the card.
Data Not Present
Packet is marked from closed captioning
source external to the card that no data is
present.
Service Inactive
Packet is marked from closed captioning
source external to the card indicating packet
does not contain active caption service.
No Data ID
Packet from closed captioning source external
to the card is not properly identified with
0x9669 as the first word of the header
(unidentified packet).
Содержание LDP-8242
Страница 1: ...LDP 8242 Multi Definition Loudness Processor User Manual ...
Страница 26: ...1 18 Introduction LDP 8242 User Manual Iss 03 ...
Страница 94: ...4 4 Specifications LDP 8242 User Manual Iss 03 ...
Страница 98: ...Notes ...
Страница 99: ...Notes ...