Visiondome HD Installation Manual V2.1.29
Page 12
© 360 Vision Technology Ltd.
Unicast
If lots of receivers (users) want to receive video streams from the Visiondome HD, each receiver will have a
separate video stream. This would increase the network bandwidth used. E.g. five users would require five
video streams, that typically will require five times the bandwidth.
Multicast
If the receivers of the video streams are suitable for using ‘multicast’ and the video streams will all have the
same format, then it may be possible to use ‘multicast’. In this mode, the CODEC in the Visiondome HD
chooses a ‘new UDP address’ (Typically an address which is outside the normal range of addresses for the
network to which the Visiondome HD is connected) and sends a video stream to the ‘new UDP address’.
Multiple receivers can then access this single video stream. Consequently the bandwidth that is required by the
Visiondome HD is typically reduced to the single video stream.
When using ‘multicast’ all intermediate network-switches and routers must be set to allow the stream from the
‘new UDP address’ to be routed correctly.
Configuration
Use the below settings to set how the video is sent, adjusting the settings can help to eliminate any ‘stutter’ or
‘pulsing’ on the video image.
Stream
Description
RTP Block Size
1448 (default)
Range 1440 to 65500
IP Ratio
25 (default)
E.g. 1 ‘i-frame’ every 25th image.
I Frame Size
55 (default)
Range 0 to 99
(average frame size x value/10 = i frame size)
Unicast Stream Limit
• Used to set the unicast stream limit.
Streamer Version
• Option allows the user to set the video streamer version. Options are original and 2016a.
OK
to program the new settings into the Visiondome-HD.
Cancel
to abandon the changes to the advanced video settings.
Default
is used to factory reset the video stream settings.
