MGW Diamond
Multi-Channel HEVC and H.264 Portable Encoder
User Manual, Version 1.6
43
Overhead in data rate, added by 1D-FEC, can be calculated by following formula:
•
FEC Mode
: Select the
Forward Error Correction
dimension mode:
1-D
(only the column
checksums will be sent to the destination), or
2-D
(checksums of both columns and rows will
be sent to the destination).
•
Matrix Dimension:
The specified FEC rows and FEC Columns from which row checksums and
column checksums will be generated (FEC algorithm = XOR)
.
Displays the columns/rows
multiplying value of the column/rows. Matrix size value must be less than 100.
•
Columns/Rows:
Select the desired values for the selected FEC. For the column, value can
range from 1 to 20.
•
1-D Port Number:
Enter the
port number from through columns checksums will be sent.
•
2-D Port Number:
Enter the
port number from through rows checksums will be sent when 2-
D mode is selected.
The network bandwidth overhead for Pro-MPEG technology is fixed and is determined by the XOR matrix dimensions
and size selected values. Bandwidth overhead exists regardless of whether the network link has errors or not.
