Operating instructions

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ProMPEG FEC
NOTE:
This feature is not yet available.
FEC Parameters
FEC is set up on a per-transport stream basis. The following description applies to the
graphical user interface.
If the user has the appropriate license installed to use FEC then these are the parameters
which can be set (with itemised lists of available values where appropriate):
Parameter
Values
Description
IP
Encapsulation
UDP
UDP encapsulation of TS packets
RTP
RTP encapsulation of TS packets
RTP/FEC Column
UDP/RTP encapsulation of RTP Packets
with added one-dimensional FEC
RTP/FEC Column
and Row
UDP/RTP encapsulation of RTP Packets
with added two-dimensional FEC
Number of
Rows
4 - 20
An integer between 4 and 20. See FEC
constraints section for allowable
ranges.
Number of
Columns
1 - 20
An integer between 1 and 20. See FEC
constraints section for allowable
ranges.
Alignment
Block Aligned
Non Block Aligned
Constraints on FEC Parameters
To promote interoperability and simplify implementation, limits are specified for values of
the L (number of columns) and D (number of rows) parameters. ProMPEG FEC requires
equipment manufacturers to support all combinations of values of L and D within these
limits. The specified limits are:
Columns Only: (L*D <= 100) and (1 <= L <= 20) and (4 <= D <= 20)
Rows and Columns: (L*D <= 100) and (4 <= L <= 20) and (4 <= D <= 20)
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