Ericsson SPR1100 Operations Instructions Page 176

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Stream Processing and Networking
Figure 6.2 Mapping of MPEG-2 TS Packets
6.1.3 MPEG Layer
The MPEG-2/DVB layer is specified in ISO/IEC IS 13818 Generic Coding of
Moving Pictures and Associated Audio. The main functionality of this layer is to
transform MPTS (Multi-Program Transport Streams) into a number of SPTS (Single-
Program Transport Streams). A Transport Stream carrying multiple programs is in
this way split into a number of ‘mini’ Transport Streams, each carrying a single
program. This ensures that the video can be passed through limited bandwidth links
such as ADSL further down the transmission path.
6.1.4 RTP Layer
The RTP layer is optional, and will add an 8 byte RTP header to the new packet.
This header contains a sequence number and a time stamp.
2/1553-FGC 101 1400 Uen B
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