28
en | Configuration
FLEXIDOME IP 3000i IR | FLEXIDOME IP micro
3000i | DINION IP 3000i IR | FLEXIDOME IP turret
3000i IR
2020-01 | V02 | DOC
User manual
Bosch Security Systems B.V.
4.3.5
Encoder Profile
Profiles are rather complex and include a number of parameters that interact with one
another, so it is generally best to use the pre-defined profiles. Only change a profile if
completely familiar with all the configuration options.
Changing a profile
To change a profile, select it by clicking its tab and then change the parameters within that
profile.
If a setting outside the permitted range for a parameter is entered, the nearest valid value is
substituted when the settings are saved.
Profile name
If required, enter a new name for the profile.
Bit rate optimization
Select the necessary bit rate optimization setting.
Maximum bit rate
The encoder maintains the maximum bit rate over a number of GOPs (group-of-pictures),
limiting image quality when necessary. To ensure long-term stability of the maximum bit rate,
use the
Averaging period
.
The value entered in this field must be at least 10% higher than the value entered in the field
Target bit rate
. If the value entered here is too low, it will be adjusted automatically.
The value in this field is not to be interpreted as the network transmission bit rate.
Averaging period
Select the appropriate averaging period as a means of stabilizing the long term bit rate.
Target bit rate
To optimize use of the bandwidth in the network, limit the data rate for the device. The target
data rate should be set according to the desired picture quality for typical scenes with no
excessive motion.
For complex images or frequent changes of image content due to frequent movements, this
limit can temporarily be exceeded up to the value entered in the
Maximum bit rate
field.
Encoding interval
The
Encoding interval
slider determines the interval at which images are encoded and
transmitted. This can be particularly advantageous with low bandwidths. The image rate is
displayed next to the slider.
Video resolution
Select the desired resolution for the video image for Standard Definition (SD) streams. This
setting is not used by High Definition (HD) streams.
Expert Settings
If necessary, use the expert settings to adapt the I-frame quality and the P-frame quality to
specific requirements. The setting is based on the H.264 quantization parameter (QP).
GOP structure
Select the structure you require for the Group of Pictures (GOP). To have the lowest possible
delay, choose IP.
I-frame distance
Use the slider to set the distance between I-frames to
Auto
or to between
3
and
255
. An entry
of 3 means that every third image is an I-frame. The lower the number, the more I-frames are
generated.
