AJA HELO - Streaming Profile Settings

HELO H.264 Streaming and Recording Encoder v1.1r1 41 www.aja.com
Independent Codecs Menu
When the Record and Stream Buttons and Profiles Panel is open, you can use the
drop-down menu on the upper right to choose Independent Codecs, or use the
same Stream Codec values for both streaming and recording. See "Independent
Codecs Menu" on page 24, for more information about sharing Codecs.
Import Streaming Settings
The top area of the Streaming Profiles screen lets you recall and save groups of
settings to the currently selected Streaming Profile. That profile is identified by
name in the Streaming Profile parameter below.
NOTE: Ensure you have the correct Streaming Profile selected before changing any
parameters. Parameter changes are immediately saved to the Streaming Profile
with no Undo.
Streaming Settings are imported the same as Recording Settings. See "Import
Recording Settings" on page 35.
Streaming Profile Settings
Many of the Streaming Profile parameters are the same as the Recording Profile
parameters described earlier, but they are applied to the streaming output
instead of the recording. Only the parameters unique to a streaming profile are
described here. See "Recording Profile Settings" on page 36 for information about
the other settings.
IMPORTANT: For RTMP streaming, HELO must be configured to operate with a Content
Delivery Network (CDN), using information provided for that specific network.
Stream Type
This parameter selects which type of streaming will be used (RTMP, RTSP or RTP/
UDP-TS). It allows the values appropriate for each type to be entered.
RTMP is a "push" protocol and is usually used to deliver content to a CDN. In this
case, HELO starts and stops the connection and delivery.
RTSP is a "pull" protocol and is usually used when a viewer on a computer is
using an application like VLC to watch a stream. In this case HELO always has the
content ready and available (if it is actively streaming), but the user is the one that
initiates and ends the viewing session. RTSP is limited to 10 streams.
RTP/UDP-TS: RTP and UDP-TS are both push protocols, typically used for multicast
applications. They do not require a CDN. RTP (Real-time Transport Protocol) and
UDP-TS (User Datagram Protocol Transport Stream) require a numeric IP address
and port number. UDP-TS is a raw MPEG transport stream sent out through UDP
packets. Recipients of the stream have to know where the stream is coming from
and use a video player like VLC. From an end user’s point of view, RTP and UDP-TS
are basically identical, except for video player compatibilities.
RTMP
The following parameters are available when RTMP (factory default) is selected.
• RTMP Server URL
• RTMP Stream Name - If multiple streams are being sent to the same CDN at
the same server URL (say, two HELOs streaming from two dierent cameras)
these stream names must be unique.
• RTMP Username
• RTMP Password