GeoVision GV-PTZ010D, Firmware Manual, Page: 81 / 257

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Note that for all the cameras (except GV-PTZ010D), the resolution options
available for sub stream vary with the resolution selected for its main
stream. For example, if a 4:3 resolution is selected for the main stream in
GV-EVD5100, three options, 960 x 720, 640 x 480 and 320 x 240 will be
available for its sub stream.
„
Flicker: Choose the Flicker Hz value between 60 Hz or 50 Hz. This
function is only supported by GV-BX4700 Series / 5700 Series.
Note:
1. For GV-BX4700 series, to reach 25 fps at 2560 x 1440, Flicker Hz
value must be set at 50 Hz.
2. The Hardware WDR Support option (see Figure 4-2A) is only
available for GV-BX2600. It produces clear live view when the
scene contains very bright and very dark areas at the same time.
This function is enabled by default. However, you will be prompted
to disable the function when the camera records up to 60 frames
per second.
For WDR Pro or WDR option of other cameras, see Camera
Adjustment in
3.2.2 The Control Panel on the Live View Window
to adjust the setting.
[Bandwidth Management] When using the H.264 / H.265 codec, it is
possible to control the bitrate, which in turn allows the amount of bandwidth
usage to be controlled.
„
VBR (Variable Bitrate): The quality of the video stream is kept as
constant as possible at the cost of a varying bitrate. The bandwidth is
much more efficiently used than a comparable CBR.
Set the image quality to one of the 5 standards: Standard , Fair ,
Good , Great and Excellent .