10–8 • Appendix B. Captioning Commands
TES9 Software User Manual (Iss. 04)
If a command is received where the {data} parameter is not specified, then the packet is inserted
with no informational characters. This would be used for packet types 0110 to 0117 (Program
Description) corresponding to a blank line
Special Processing on Specific Packet Types
Special processing is performed on the following packet types, when received from the host
computer or from upstream:
• 0701 (Time of Day) — used to set the time in the encoder, according to Coordinated
Universal Time
• 0102 (Length/Time-in-Show) — used to set the elapsed time of the program
Special processing is performed on the following packet types as they are inserted:
• 0701 (Time of Day) — data used is the current time of day, in Coordinated Universal
Time
• 0102 (Length/Time-in-Show) — data used is the current elapsed time of the program
• 010C (Composite Packet-1) — data used in the Time-in-Show field is the current elapsed
time of the program
Examples
The following command will insert, every 2 seconds (60 video frames), the XDS Program Name
packet. The name used will be “National News” and the packet is inserted forever.
<CTRL-A>P0103 -1 {National News} 60 <CR>
The following command inserts, every 5 seconds, the XDS Program Rating packet. The data
defining the rating is 4042 (hexadecimal) and the packet is inserted 360 times.
<CTRL-A>P0105 360 4042 150 <CR>
Start Encoding XDS Data (Fill Packets)
Format: <CTRL-A>P{packet type} {duration} {data} {priority} P <CR>
When this format of the command is used, the packet is inserted as often as possible, based on the
space available in field 2 of line 21, and the other XDS packets being inserted. The packet is
referred to as a Fill packet since it fills the unused space in field 2 of line 21.
The parameters are outlined in
Table 10.7 Start Encoding XDS Data
Parameter
Description
{packet type}
same as for Interval packets
{duration}
length of time to insert the packet for, in the format
“mmm:ss”, allowing times up to 999 minutes, 59
seconds.
{data}
same as for Interval packets
