AXIS Q1755/-E - 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 and Motion JPEG 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 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 which 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 |
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| be your first consideration for live unicast |
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| video, especially when it is important to |
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| always have an | Unicasting is used for | |
| even if some images are dropped. | ||
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| so that there is no video traffic on the network until a | |
RTP over RTSP | This unicast method (RTP tunneled over | client connects and requests the stream. | |
| RTSP) is useful as it is relatively simple to |
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| configure firewalls to allow RTSP traffic. | Note that there are a maximum of 10 simultaneous | |
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| unicast connections. | |
RTP over RTSP over | This unicast method can be used to traverse | ||
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HTTP | firewalls. Firewalls are commonly configured |
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| to allow the HTTP protocol, thus allowing |
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| RTP to be tunneled. |
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Multicast RTP | This method (RTP over UDP) should be used for live multicast video. The video stream is always | ||
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| 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 10 | ||
| simultaneous connections. |
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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 is licensed technology. The network camera includes one viewing client license. Installing additional unlicensed copies of the viewing client is prohibited. To purchase additional licenses, contact your Axis reseller.
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