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User Manual professional h.264 & MPEG2 encoder MPE-4000
MPE-4000-MPEG-encoder-manual-RR-03-2018.docx
Page 29 / 44
Config-Section:
In this part, all settings for the output stream from the DATA –RJ45 network interface can be adjusted.
Of course a streamer need an IP Address (Source), GW and NM settings. RTP or UDP can be chosen.
The MAC should be unique but can be adjusted somehow. If the IP Stream output should be a VBR, the
Zero-packets (PID 8191dec) can be skipped. This doesn’t work on ASI output because ASI is always a
CBR incl. Zero packets filling up to the Bitrate you can setup to your needs. The ASI port can be used as
Burst or Byte mode. An Insertion of the SDT is for TS related multiplexers and even for IPTV streams
nearly mandatory.
TDT/TOT
must be generated if the ASI / IP Stream output demands this for the further multiplexer
devices. Reason: While an SDI or HDMI or even CVBS analogue Video signal must not carry time and
date information, it is almost a must-have to insert this information in a Transportstream (TS).
See also:
https://www.dvb.org/resources/public/standards/a38_dvb-si_specification.pdf
While VCT is a part of the ATSC norm
, as well as CC Closed caption information (Subtitles as Overlays
similar to DVB-Teletext) you can insert a VCT-PID containing relevant information or skip this part.
Some explanations from Internet:
http://www.tvwithoutborders.com/tutorials/dtv_intro/atsc_psip/vct/
The first thing that service information has to describe is the organization of the transport stream. This is defined
as part of the MPEG standard, and so these tables are common across all types of digital TV system, be it DVB or
ATSC. The most important table is the Program Association Table (PAT). This is the entry point into the service
information, and so it must be broadcast on a well-known PID within the transport stream – PID 0.
Programs in MPEG are the same as services in a digital TV context. The Program Association Table lists how many
services there are in the transport stream, and provides pointers to more detailed descriptions of those services.
Each service has an associated Program Map Table(PMT) that describes the elementary stream s that make up
the service. For every elementary stream in the service, the PMT for that service contains information about the
type of that stream (audio, video or data, and what type of audio, video or data) and the PID of that elementary
stream. Since there are several instances of the PMT in a transport stream, these are broadcast on different PIDs.
The PID for each PMT is carried in the PAT entry for that service.
Now that the receiver knows how the network is
organized at the stream level, some extra logical information is needed to make this more useful to the receiver.
Output bitrate. Range: 0,5Mbps-to 60 Mbps
The value should be larger than the encoding
Bitrate.