Vivotek IP7138 User Manual download pdf (Page 19)

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User's Manual - 19

Client Settings

This chapter explains how to select the stream transmission mode and saving options on the

local computer� When completed with the settings on this page, click Save on the page bottom

to enable the settings�

Stream Options

The Network Camera supports MPEG-4 and MJPEG dual streams� For more information, please refer to

Video Settings on page 48�

MPEG-4 Media Options

Select to stream video or audio data or both� This is enabled only when the video mode is set to MPEG-4�

MPEG-4 Protocol Options

Depending on your network environment, there are four transmission modes of MPEG-4 streaming:

UDP unicast: This protocol allows for more real-time audio and video streams� However, network

packets may be lost due to network burst trafc and images may be broken. Activate UDP connection

when occasions require time-sensitive responses and the video quality is less important� Note that each

unicast client connecting to the server takes up additional bandwidth and the Network Camera allows up

to ten simultaneous accesses�

UDP multicast: This protocol allows multicast-enabled routers to forward network packets to all clients

requesting streaming media� This helps to reduce the network transmission load of the Network Camera

while serving multiple clients at the same time. Note that to utilize this feature, the Network Camera

must be congured to enable multicast streaming at the same time. For more information, see RTSP

Streaming on page 34�

TCP: This protocol guarantees the complete delivery of streaming data and thus provides better video

quality� The downside of this protocol is that its real-time effect is not as good as that of the UDP protocol�

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Vivotek IP7138 User Manual Page 19