B.3 3bsection packing – Comtech EF Data CMR-6000 Manual User Manual
Page 112
Digicast Media Router S2 Receiver CMR-6000
Revision 1
IP Routing Support
B–4
B.3 Section Packing
Figure B-2) is a technique that provides more optimal utilization of the MPEG-2
transport stream (TS) packet structure. When section packing is not used, each TS packet
(containing the MPE section) can carry no more than a single section. This often results in wasted
payload capacity when the sections are less than 184 bytes.
The section packing feature allows more than a single MPE section to be carried by an MPEG-2
TS packet, thereby minimizing wasted payload capacity.
In the case of a large MPE section that spans multiple MPEG-2 packets, the ending of an MPE
section may occur in the middle of an MPEG-2 packet. In this instance, with section packing, a
new MPE section begins immediately after the first MPE section has finished without any ‘fill’
(wasted) bytes having to be inserted before the start of the next MPEG-2 packet.
Figure B-2. Section Packing