Axis M7001 User Manual

Also see for M7001: Datasheet Installation guide Installation guide

9AXIS M7001 - Video StreamsVideo StreamsThe video encoder provides several image and video stream formats. Your requirements and the properties of your networkwill determine the type you use.The Live View page in the video encoder provides access to H.264 and Motion JPEG video streams, and to the list of availablestream profiles. Other applications and clients can also access these video streams/images directly, without going via the LiveView page.Simultaneous video streamsThe AXIS M7001 Video Encoder supports simultaneous streaming of one H.264 stream and one Motion JPEG stream,individually configured with different resolutions, bit rates, compression levels etc. The error message “503 serviceunavailable” is shown if the maximum number of simultaneous streams is exceeded, for example if a user requests a MotionJPEG stream while another user is accessing Motion JPEG video with a different stream configuration.How to stream H.264The H.264 video compression standard makes good use of bandwidth, and can provide high quality video streams at less than1 Mbit/s.Deciding which combination of protocols and methods to use depends on your viewing requirements, and on the properties ofyour network. The available options in AXIS Media Control are:AXIS Media Control negotiates with the video encoder to determine the transport protocol to use in the order listed above.This order can be changed and the options disabled to suit specific requirements.Important!H.264 is licensed technology. The video encoder includes one viewing client license. Installing additional unlicensed copiesof the viewing client is prohibited. To purchase additional licenses, contact your Axis reseller.Unicast RTP This unicast method (RTP over UDP) shouldbe your first consideration for live unicastvideo, especially when it is important toalways have an up-to-date video stream,even if some images are dropped. 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 are a maximum of 20 simultaneousunicast 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 overHTTPThis unicast method can be used to traversefirewalls. Firewalls are commonly configuredto allow the HTTP protocol, thus allowingRTP 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 not possible to multicast over the Internet, for example.Note also that all multicast viewers count as one unicast viewer in the maximum total of 20simultaneous connections.