Operation Manual

94
MPTS Configuration Parameters
Whenever possible, the MPTS uses the same parameters as configured in the individual encoders.
However, there are two parameters that need to be independently set, as follows:
MPTS Transport Stream ID: This field sets the Transport Stream ID for the MPTS
formed by multiplexing the two encoders. This field accepts both hexadecimal (starting
with 0x) and decimal entries. Valid values are from 0 (0x0) to 65535 (0xFFFF).
MPTS Original Network ID: This field set the Original Network ID to be reported in
the MPTS SDT (if enabled). For a discussion of how to set the Original Network ID,
please see the SDT description in Advanced Tab Mux Parameters in the Encoder
chapter.
Note that this window does not have an Apply button; changes take effect immediately and on-
the-fly.
MPTS PID/Program Allocation
Since the PIDs and Program Numbers can be set arbitrarily in each encoder, it is possible to
select the same values for one or more of these parameters between Encoder 1 and Encoder 2.
However, when the bitstream from the encoders is multiplexed into one MPTS, these values
have to be distinct.
When building the MPTS, the B264 will use the configured values for each encoder if at all
possible. However, if there are any conflicts, the following rules are employed:
1. The PID/Program allocations made for Encoder 1 are used unchanged in the MPTS.
2. If any PIDs configured for Encoder 2 conflict with those from Encoder 1, the Encoder 2
PIDs are remapped to the closest free value. Note that this remapping only happens for
the MPTS; ports carrying the bitstream for Encoder 2 only will use the configured values.
3. If the program number is the same for Encoder 1 and Encoder 2, the program number for
Encoder 2 in the MPTS will be that of Encoder 1 plus 1. For example, if both encoders
are configured to be program 4, Encoder 1 will be program 4 in the MPTS, and Encoder
2 will be program 5 in the MPTS. Both encoders will still be program 4 in their
individual SPTS.
4. The MPTS will have an SDT if either Encoder 1 and/or Encoder 2 have the SDT enabled.
If only one encoder has the SDT enabled, the MPTS SDT will have only one entry, for
that encoder.
The MPTS PID/Program Allocation area reports the actual PIDs and Program Numbers being
used in the MPTS. It also reports whether or not the individual SDTs are enabled per encoder.