Axis 26926r2 User Manual
AXIS 212 PTZ - Video Streams
11
Video Streams
The AXIS 212 PTZ provides several different image and video stream formats. The type to use depends on your
requirements and on the properties of your network.
The Live View page in the AXIS 212 PTZ provides access to MPEG-4 and Motion JPEG video streams, as well as
to single JPEG images. Other applications and clients can also access these video streams/images directly,
without going via the Live View page.
How to stream MPEG-4
This video compression standard makes good use of bandwidth, and can provide DVD-quality video streams at
less than 1 Mbit/s. Note that the image settings of the MPEG-4 stream are the same for all clients.
Deciding on the combination of protocols and methods to use depends on your viewing requirements, 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
live video, especially when it is important to always have an up-to-date
video stream, even if some images are dropped.
live 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 broadcasting, so
that there is no video traffic on the network until a client
connects and requests the stream.
Note: There is a maximum of 20 simultaneous viewers.
that there is no video traffic on the network until a client
connects and requests the stream.
Note: There is a maximum of 20 simultaneous viewers.
RTP over RTSP
This unicast method (RTP tunneled over RTSP) is useful as it is relatively
simple to configure firewalls to allow RTSP traffic.
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.
commonly configured to allow the HTTP protocol, thus allowing RTP to
be tunneled.
Multicast RTP
This method (RTP over TCP) should be your first consideration for live
video, especially when it is important to always have an up-to-date
video stream, even if some images are dropped.
video, especially when it is important to always have an up-to-date
video stream, even if some images are dropped.
Multicasting provides the most efficient usage of
bandwidth, especially when there are large numbers of
clients viewing simultaneously. Note however, that a
multicast broadcast cannot pass a network router unless
the router is configured to allow this. It is thus not
possible to multicast over e.g. the Internet.
bandwidth, especially when there are large numbers of
clients viewing simultaneously. Note however, that a
multicast broadcast cannot pass a network router unless
the router is configured to allow this. It is thus not
possible to multicast over e.g. the Internet.
AMC will negotiate with the camera to determine exactly which transport protocol to use in the order listed
above. This order can be changed and the options disabled, to suit any specific requirements. Right-click the
video image and select Settings from the menu to access the AMC menu.
Important!
MPEG-4 is licensed technology. The AXIS 212 PTZ includes one viewing client license. Installing
additional unlicensed copies of the viewing client is prohibited. To purchase additional licenses, contact
your Axis reseller.