Axis 216FD/FD-V User Manual

Also see for Axis 216FD: Installation guide Specifications Product guide User manual Installation guide

Axis 216FD/FD-V User Manual Manual pdf 14 page image

14AXIS 216FD/FD-V - Video StreamsVideo StreamsThe AXIS 216FD/FD-V provides several different image and video stream formats. Thetype to use depends on your requirements and on the properties of your network.The Live View page in the AXIS 216FD/FD-V provides access to MPEG-4 and Motion JPEGvideo streams, as well as to single JPEG images. Other applications and clients can alsoaccess these video streams/images directly, without going via the Live View page.How to stream MPEG-4This video compression standard makes good use of bandwidth, and can provideDVD-quality video streams at less than 1 Mbit/s. Note that the image settings of theMPEG-4 stream are the same for all clients.Deciding on the combination of protocols and methods to use depends on your viewingrequirements, and on the properties of your network. The available options in AMC are:Unicast RTP This unicast method (RTP over UDP)should be your first consideration for liveunicast video, especially when it isimportant to always have an up-to-datevideo stream, even if some images aredropped.Unicasting is used for video-on-demand broadcasting,so that there is no video traffic on the network until aclient connects and requests the stream.Note that there is a maximum of 10 simultaneous uni-cast connections.RTP over RTSP This unicast method (RTP tunneled overRTSP) is useful as it is relatively simple toconfigure firewalls to allow RTSP traffic.RTP over RTSP over HTTP This unicast method can be used totraverse firewalls. Firewalls are com-monly configured to allow the HTTP pro-tocol, thus allowing RTP to be tunneled.Multicast RTP This method (RTP over UDP) should be used for live multicast video. The video stream is alwaysup-to-date, even if some images are dropped.Multicasting provides the most efficient usage of bandwidth when there are large numbers of cli-ents viewing simultaneously. A multicast broadcast cannot however, pass a network router unlessthe router is configured to allow this. It is thus not possible to multicast over e.g. the Internet.Note also that all multicast viewers count as one unicast viewer in the maximum total of 10 simul-taneous connnections.AMC will negotiate with the camera to determine exactly which transport protocol to usein the order listed above. This order can be changed and the options disabled, to suit anyspecific requirements.Important!MPEG-4 is licensed technology. The AXIS 216FD/FD-V includes one viewing clientlicense. Installing additional unlicensed copies of the viewing client is prohibited. Topurchase additional licenses, contact your Axis reseller.