Datasheet
RECORDING SOLUTIONS 31TECHNICAL CORNER / QoS, H.26432
QUALITY OF SERVICE (QoS)
As dierent networks, such as telephone, data and
video (CCTV) all continue to merge into a single IP
network, it becomes more and more important to
control the sharing of network resources, to fulll the
requirements of each service.
One solution is to have network equipment treat
dierent types of services (voice, data, video) dier-
ently as the trac passes through the network.
By using Quality of Service (QoS), network applications
can co-exist on the same network, without consuming
each other’s bandwidth. QoS makes it possible to
prioritize trac, thus creating a more reliable network.
H.264
H.264, also known as MPEG-4 Part 10/AVC for
Advanced Video Coding, is the latest MPEG standard for
video encoding. H.264 takes video compression tech-
nology to a new level. An H.264 encoder can, without
compromising image quality, reduce the size of a digital
video le by more than 80% compared with the Motion
JPEG format and as much as 50% more than with the
MPEG-4 Part 2 standard. This means that much less
network bandwidth and storage space are required for
a video le. Or seen another way, much higher video
quality can be achieved for a given bit rate.
As the H.264 format is now available in network
cameras, video encoders and video management soft-
ware, system designers and integrators need to make
sure that the products and vendors they choose support
this standard. Network video products that support both
H.264 and Motion JPEG are ideal for maximum exibility
and integration possibilities.
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