There are numerous ways to save bandwidth when streaming video. Most of them, however, have a direct negative impact on the quality of the stream (e.g. lowering bit rate, frame rate or resolution).
Luckily, you can seek out more sophisticated forms of saving bandwidth, ones that have no or very little negative consequences.
The most well known technology is Zipstream by AXIS. It’s supposed to save about 50% of transferred data without lowering the quality of your stream. And our own tests confirm that you can really achieve these savings with AXIS.
Zipstream turns out to be most useful for night scenes and static scenes.
You can turn it on in your camera settings via the Video Stream Settings / Zipstream section. Turn H.264 bitrate reduction to High and turn on Dynamic GOP (Zipstream can only be used with newer camera models).
Other camera manufacturers certainly don’t want to be left behind, so you can check out technologies like Vivotek Smart Stream, Hikvision Smart H.264 and Arecont Bandwidth Saving Mode.