HELIX Broadcaster 100, User Manual

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Helix Broadcaster 100 Touch Screen User Guide CHAPTER 2: Inputs
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pull methods in which Helix Broadcaster requests the stream from the remote server using the
designated URI.
UDP and RTP Input
If you choose
udp
or
rtp
for
Input Protocol
, you specify the unicast or multicast address and port
where Helix Broadcaster receives the stream.
RTP or UDP Stream Setup
Input Protocols
Protocol Purpose
udp
User Datagram Protocol. This option is for a UDP stream that does not use a control
protocol such as RTSP. Use it for input from an MPEG-2 TS encoder or a satellite link.
rtp Similar to the UDP method. Use this instead if data is delivered using the Real-Time
Transport Protocol packet format.
http
HyperText Transport Protocol. This option is for receiving media from a web server or any
other server that does not support RTSP or RTMP. You can use this option to load an
SDP file used to acquire a stream, for example.
rtsp/udp Real-Time Streaming Protocol with User Datagram Protocol. This option is
recommended for receiving live input from an RTSP-capable server such as Helix Server.
It can also be used for RTSP cameras. By using UDP, the source can deliver media packets
more efficiently than with TCP. However, lost packets are not resent and may cause lapses
in the media stream.
rtsp/tcp
Real-Time Streaming Protocol with Transmission Control Protocol. Using the TCP
transport with RTSP results in greater network overhead, but lost packets can often be
redelivered by the network layer. This option provides better error resilience for RTSP
sources transmitting over the Internet. It is not recommended for use with live streams
delivered by a Helix Server, however.
rtsp/http Real-Time Streaming Protocol over HTTP. This is used primarily to work around firewalls
that restrict RTSP communications as long as the RTSP source supports HTTP. Because
RTSP/HTTP is less efficient for transporting media than RTSP/UDP or RTSP/TCP, it is
not recommended if either of those options is available.
rtmp Variations of the Real-Time Messaging Protocol used by Flash Media Servers:
rtmp – standard protocol (recommended)
rtmpt – RTMP cloaked as HTTP to work around firewalls
rtmpe
– encrypted RTMP
rtmps – secure RTMP
rtmpte – encrypted and cloaked RTMP
rtmpts
– secure and cloaked RTMP