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AXIS Q1602 Network Camera

Media Streams

The Axis product provides several audio and video stream formats. Your requirem ents and the properties of your network w ill

determine the type you use.

The Live View page in the product provides access to H.264 and Motion JPEG video streams, audio streamsandtothelistofavailable

stream proﬁles. Other applications and clients can access video and audio streams directly, without going via the Live View page.

How to Stream H.264

The video compression standard H.264 makes good use of bandw idth, and can p rovide high quality video streams at less than 1 Mbit/s.

Deciding which combination of protocols and method s to use depends on your viewing requirements, and on the properties of

your netw ork. The available options in AXIS Media Control are:

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.

RTP over RTSP

This unicast method (RTP tunneled over RTSP)

is useful as it is relatively simple to conﬁ gure

ﬁrewallstoallowRTSPtrafﬁc.

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.

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.

Multicast RTP

This method (RTP o ver UDP) should be used for l iv e multicast video. The video stream is always

up-to-date, even if some images are dropped.

Multicasting provides the most e fﬁcient usage of bandwidth when there are large numbers of

clients 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 a lso that all m ultica st viewers count as one unicast view er in the maximum total of 20

simultaneous connections.

AXIS Media Control negotiates with the Axis pr oduct to d etermine the transport protocol to use. The order of priority, listed in the

AMC Con trol Panel, can be changed and the options disabled, to suit speciﬁc requirements.

Note

H.264 is licensed technology. The Axis product includes one H.264 viewing client license. Installing additional unlicen se d

copies of the client is prohibited. To

purchase additional lic e n ses, conta ct your A xis reseller.

MJPEG

This format use s standard JPE G still images for the video stream. These images are then displayedandupdatedataratesufﬁcient

to create a stream that shows constantly updated motion.

The Motion JPEG stream uses considerable amounts o f b andw idth, but provides excellent image qualityandaccesstoeveryimage

contained in the stream. The recommended method of accessing Motion J PEG live video from the Axis product is to use the AXIS

Media Control in Internet Explorer in Windows.

AXIS Media Control (AMC)

AXIS Med ia Control (AMC) in Internet E xp lorer in Window s is the recommended method of accessing live video from the Axis product.