It is not possible to insert splice points into the video which are closer than 1 second
apart. Any messages received with a splice time within 1 second of another splice
point and, which have the same splice_event_id, will be treated as a duplicate of the
initial splice request and deleted.
Any messages received with a splice time within 1 second of another splice point
and, which have a different splice_event_id, will be aligned to the initial splice
request. This will result in 2 SCTE35 messages being generated containing the
same PTS value but with different splice_event_ids, and 1 splice point inserted into
the video, unless the auto return is set to 1 and the duration is populated, in which
case the video PID will be conditioned for two splice points.
3.14.2 SCTE104 over IP
The DPI TCP Port on the unit is 5167 by default. This parameter can be accessed
on the GUI through Device Configuration > Advanced Setup > Base Unit.
3.14.3 How to Configure Splicing
To configure splicing:
1. If you have not already done so, create a Transport Stream and a service as
described in Chapter 5, Web GUI Control.
2. Go to the Inputs widget of the Service Configuration page and select the
Video SCTE 35 Stream from the VCM inputs tree and drag it into the required
output service.
3. Select the required source from the Splicing Control drop down box in the
Properties widget.
Table 3.28 Splicing Control Options
Option Description
Off No splice operation
On VANC message only
SCTE104 messages in VANC will be passed through as SCTE35 messages
that can then be added as a component in the output transport stream.
No splice points will be inserted in the video bitstream.
On VANC SCTE104 messages in VANC will trigger the insertion of splice points
On IP SCTE104 messages in IP will trigger the insertion of splice points
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