ENC-300
™ H.264 HD Encoder
User Guide V 2.0
Teracue GmbH ∙ Schlossstr. 18 ∙ 85235 Odelzhausen ∙ Germany ∙ Tel: +49 (0)8134 555 10 ∙ Fax: +49 (0)8134 555 199 ∙ [email protected] ∙ www.teracue.com
Geschäftsführer: Wolfgang Schmiegelt
∙ Karl-Heinz Wenisch ∙ Amtsgericht München HRB 209259
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Term
Description
RTSP
The Real Time Streaming Protocol is a network control protocol designed for use in
entertainment and communications systems to control streaming media servers. The
protocol is used for establishing and controlling media sessions between end points.
Clients of media servers issue VCR-style commands, such as play and pause.
The Transmission itself is done via UDP RTP as Transport or Elementary stream.
RTT
Round Trip Time = Ping Time= Time to receive answer from another node.
RWIN
See TCP Window Size
SAP
The Session Announcement Protocol (SAP) is a protocol for broadcasting multicast
session information. A SAP listening application can listen to the well-known SAP
multicast address and construct a guide of all advertised multicast sessions. SAP was
published by the IETF as RFC 2974.
According to this specification and standard SAPs are sent on the multicast address
224.2.127.254 on port 9875.
SAP is used to label a stream to guarantee an effective workflow. Streams with SAPs
can easily be located, selected and viewed
– due to their description. Please see the
figure below to get an overview of all the properties that can be defined.
SDI
The ‘Serial Digital Interface’ used in Broadcast environment, transporting
uncompressed Video and Audio Signals.
There are different Standards like:
3G-SDI Bitrate 2,970 GBit/s
6G-SDI Bitrate 6 Gbit/s
12G-SDI Bitrate 12 Gbit/s
SDT
The Service Description Table can be part of the TS and describes services that are
contained in a particular transport stream. Such services are the service name and the
service provider. The ETSI EN 300 468 standard contains a detailed information about
SDT.
Strength
Signal Strength by DVB receiver. Mostly critical by DVB-C receiver can be even to big
and need a attenuator to reduce the signal strength
TCP
Transmission Control Protocol is a connection-oriented protocol, which means that it
requires handshaking to set up end-to-end communications. Once a connection is set
up, user data may be sent bi-directionally over the connection.
TCP
Window
Size
TCP Receive Window also called RWIN
RWIN (Send buffer) is limiting the Bandwith, max Bandwith = RWIN/RTT. In doubt
bigger RWIN is better than a small RWIN
If ping time is higher than 30 ms only lower Bitrates (> 4Mbit/s) are realistic.
TS
MPEG transport stream (MPEG-TS, MTS or TS) is a standard container format for
transmission and storage of audio, video, and It is used in broadcast systems such
as DVB, ATSC and IPTV.
Transport Stream is specified in MPEG-2 Part 1, TS specifies a container
format encapsulating packetized elementary streams.
Teracrypt
Teracrypt is a proprietary encryption used on ENC-
300™ and ENC-400™
The output is not usable for any other Video Device. They will not even recognize it as
a Transport Stream.
It is also not usable for recording.
Best practice are
Multicast Destination.
You can decrypt this Stream only with Teracue:
DEC-300 FW 2.10 or higher
X-Player Version 4.0.0.125 or higher
TOT/TDT
The ‘Time Offset Table’ and ‘Time and Date’ Table carries the UTC Time and Date
information and the TOT added with the Time offset.
Needed for EPG, without TOT/TDT the EPG Data can not be decoded.
The ETSI EN 300 468 standard contains a detailed information about TOT and TDT
UDP
User Datagram Protocol is a simpler message-based connectionless protocol.
Connectionless protocols do not set up a dedicated end-to-end connection.
Communication is achieved by transmitting information in one direction from source to
destination without verifying the readiness or state of the receiver.
