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80 en | Configuring the IP AutoDome VG4 Modular Camera System
F.01U.133.268 | 6.0 | 2010.03 User’s Manual Bosch Security Systems, Inc.
P-frame quality
This setting allows you to adjust the maximum image quality of the P-frames. The basic setting
Auto automatically adjusts to the optimum combination of movement and image definition
(focus). Alternatively, you can use the slide control to set a value between 9 and 51. The value
9 represents the best image quality with, if necessary, a lower frame refresh rate depending
on the settings for the maximum data rate. A value of 51 results in a very high refresh rate and
lower image quality.
Default
Click Default to return the profile to the factory default values.
10.17 Advanced Mode: Encoder Streams
The IP AutoDome simultaneously generates two data streams (Dual Streaming); you can
select the relevant property for these here and connect them to an encoder profile, for
example one for transmissions to the Internet and one for LAN connections.
Two settings with different encoder properties are available:
– H.264 BP+ (HW decoder)
Select this setting when using hardware decoders or the Divar XF digital video recorder.
CABAC: off
CAVLC: on
GOP structure: IP
I-frame distance: 15
Deblocking filter: on
– H.264 MP Low Latency
Select this setting when using software decoders, PTZ and for rapid movements in the
images.
CABAC: on
CAVLC: off
GOP structure: IP
I-frame distance: 30
Deblocking filter: on
1. Select the required encoder properties and one of the encoder profiles for each data
stream.
2. Click the Preview button. The preview screens for both data streams are shown.
3. Click the 1:1 Live View button below the preview screen to open a new window with the
original data stream and to check the image quality and the transmission rate.
Property
Select the required encoder properties for the relevant data stream here.
Default profile
Select the required encoder profile here. The properties of the profiles are defined on the
Encoder Profile page (see Section 10.16 Advanced Mode: Encoder Profile, page 78).
JPEG stream
You can set up the separate JPEG stream in this area. These settings are independent of the
H.264 settings. The resolution corresponds to the highest setting from the two data streams.
Max. frame rate
You can select the frame rate for transmitting the JPEG images.