3: Using the Web Interface
32
Verint Video Intelligence Solutions
10. In the Resolution list, select the measure of how clear and crisp the video image
appears. Each resolution corresponds to a specific number of pixels (columns * lines)
for each picture of the video sequence. The available resolutions are: QCIF, CIF, 2CIF,
4CIF, All lines, 2/3 D1, and VGA.
11. In the Rate Control Mode list, select the mode controlling the bit rate variation. The
available modes are:
CFR (Constant Frame Rate)—This mode maintains the target frame rate. Video
quality may suffer and the bit rate may exceed the target value.
CBR (Constant Bitrate)—This mode is the most effective to maintain the target bit
rate. Video quality may suffer (frames may be skipped) and the frame rate may
decrease. This mode should be used when transmitting video over networks that
have very limited bandwidths, and with an intra-interval value of 0.
CNR (Constant Nextiva Rate)—This is the optimized mode, based on CBR, to be
used for the Nextiva enterprise video management software to make good use of
the storage capacity.
12. In the Web Multicast IP Address box, enter the IP address of the multicast group
from which the web interface will get live video, if the web streaming method is
Multicast UDP (see page 37).
13. In the Web Multicast IP Port box, enter the IP port of the multicast group from which
the web interface will get live video, if the web streaming method is Multicast UDP (see
page 37).
14. In the Intra Interval box, enter the frequency at which a complete video frame (called
I-frame) is sent by the encoder. The available values are in the 0–1000 range. A value
of X means that a complete image refresh will occur every X frames.
15. To continue the configuration process, select another parameter category in the
navigation pane. Otherwise, click Apply to save the changes in the device. Depending
on the changes you made, a reboot may be required; follow the on-screen instructions
in the Device Configuration Submittal pane.
To configure the encoder parameters for the MJPEG compression mode:
1. In the navigation pane, expand Configuration > Advanced > Video, then click the
desired Encoder.
2. In the Compression Mode box, select MJPEG. The compression mode represents the
way the video is compressed. The following codecs (coders/decoders) are available:
SM4—The proprietary MPEG-4-based mode.
MPEG4 Compliant Simple Profile—The MPEG-4 ISO 14496-2 compliant mode.
MJPEG—The Motion JPEG mode that uses standard JPEG still images.
Tip: It is not recommended to use a value of 0.
