Axis Communications user manual How to stream MPEG-4/H.264, Axis M3011 Video Streams

AXIS M3011 - Video Streams

Video Streams

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, Motion JPEG, and MPEG-4 video streams, and to the list of available stream profiles. Other applications and clients can also access these video streams/images directly, without going via the Live View page.

How to stream MPEG-4/H.264

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

Deciding 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 unicast
	video, especially when it is important to
	always have an up-to-date video stream,	Unicasting is used for video streaming, so that there is
	even if some images are dropped.
		no video traffic on the network until a client connects
RTP over RTSP	This unicast method (RTP tunneled over	and requests the stream.
	RTSP) is useful as it is relatively simple to
	configure firewalls to allow RTSP traffic.	Note that there are a maximum of 20 simultaneous
		unicast connections.
RTP over RTSP over	This unicast method can be used to traverse
HTTP	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 broadcast 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.

AMC negotiates with the camera 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 and MPEG-4 are licensed technologies. The network camera includes one viewing client license for each tech- nology. Installing additional unlicensed copies of the viewing client is prohibited. To purchase additional licenses, con- tact your Axis reseller.

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