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AXIS 213 - Setup
Bit Rate Control
Limiting the maximum bit rate is a good way of controlling the bandwidth used by
the MPEG-4 video stream. Leaving the Maximum bit rate as unlimited will provide
consistently good image quality, but at the expense of increased bandwith usage
whenever there is more activity in the image. Limiting the bit rate to a defined value
will prevent excessive bandwidth usage, but images will be lost when the limit is
exceeded.
Note that a maximum bit rate can be used for both variable and constant bit rates.
The bit rate type can be set as Variable Bit Rate (VBR) or Constant Bit Rate (CBR). VBR
will adjust the bit rate according to the images' complexity, thus using a lot of
bandwidth for a lot of activity in the image and less for lower activity in the
monitored area.