Vivotek 3GPP Bedienungsanleitung PDF herunterladen (Seite 21)

VIVOTEK

User's Manual - 21

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.

H.264 / MPEG-4 Protocol Options

Depending on your network environment, there are four transmission modes of H.264 or 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 configured to enable multicast streaming at the same time. For more information, please refer to

RTSP Streaming on page 45.

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.

HTTP:ThisprotocolallowsthesamequalityasTCPprotocolwithoutneedingtoopenspecicportsfor

streaming under some network environments. Users inside a firewall can utilize this protocol to allow

streaming data through.

H.264/MPEG-4 Protocol Options

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