Axis M1114 Guida Utente

The network camera provides several image and video stream formats. Your requirements and the properties of your network 
will determine the type you use. 

The Live View page in the network camera provides access to H.264 and Motion JPEG video streams, and to the list of 
available stream profiles. Other applications and clients can access the video streams directly, without going via the Live View 
page. 

This video compression standard makes good use of bandwidth, and can provide high quality video streams at less than 1 
Mbit/s. 

Deciding which combination of protocols and methods to use depends on your viewing requirements, and on the properties of 
your network. The available options in AXIS Media Control are:

AXIS Media Control negotiates with the camera to determine the transport protocol to use. The order of priority, listed in the 
AMC Control Panel, can be changed and the options disabled, to suit specific requirements.

H.264 is licensed technology. The network camera includes one H.264 viewing client license. Installing additional 
unlicensed copies of the clients is prohibited. To purchase additional licenses, contact your Axis reseller.

This format uses standard JPEG still images for the video stream. These images are then displayed and updated at a rate 
sufficient to create a stream that shows constantly updated motion. 

The Motion JPEG stream uses considerable amounts of bandwidth, but provides excellent image quality and access to every 
image contained in the stream. The recommended method of accessing Motion JPEG live video from the network camera is to 
use the AXIS Media Control in Internet Explorer in Windows.

Unicast RTP

This unicast method (RTP over UDP) is used 
for live unicast video, especially when it is 
important to always have an up-to-date 
video stream, even if some images are 
dropped. 

Unicasting is used for video-on-demand transmission, 
so that there is no video traffic on the network until a 
client connects and requests the stream. 

Note that there are a maximum of 20 simultaneous 
unicast connections.

RTP over RTSP

This unicast method (RTP tunneled over 
RTSP) is useful as it is relatively simple to 
configure firewalls to allow RTSP traffic. 

RTP over RTSP over 
HTTP

This unicast method can be used to traverse 
firewalls. Firewalls are commonly configured 
to allow the HTTP protocol, thus allowing 
RTP to be tunneled.

Multicast RTP

This method (RTP over UDP) should be used for live multicast video. The video stream is always 
up-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 cannot however, pass a network router unless the 
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 20 
simultaneous connections.