User Guide

427-1065-00-12 Revision 130 November 2019 34
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Advanced Configuration
The parameters in the Encoding section will have a
significant impact on the quality and bandwidth
requirements of the video stream. Use the default values
initially, and then individual parameters can be modified and
tested incrementally to determine when bandwidth and
quality requirements are met.
For the video streams, the Codec options are H.264 or
MJPEG.
The Bit Rate parameter is only used when the Rate Control
parameter is set to CBR (Constant Bit Rate). With the CBR
setting, the system attempts to keep the video at or near the
target bit rate.
With Rate Control set to VBR (Variable Bit Rate) the Bit Rate parameter is replaced with a Quality
parameter.
The I-Frame Interval parameter controls the number of P-frames used between I-frames. I-frames
are full frames of video and the P-frames contain the changes that occurred since the last I-frame. A
smaller I-Frame Interval results in higher bandwidth (more full frames sent) and better video quality.
A higher I-Frame Interval number means fewer I-frames are sent and therefore results in possibly
lower bandwidth and possibly lower quality.
The video streaming is done using a protocol generally
referred to as Real-time Transport Protocol (RTP), but there
are actually many protocols involved, including Real-Time
Transport Control Protocol (RTCP) and Real Time
Streaming Protocol (RTSP). The default value for the
stream from VIDEO - 0 is stream1/sensor1.
The complete connection strings are:
rtsp://192.168.0.250:554/stream1/sensor1 for VIDEO - 0
and
rtsp://192.168.0.250:554/stream2/sensor1 for VIDEO - 1. By
default the video stream uses the IP address of the camera.
Select Video format
The video format only applies to the video output on the
analog video BNC connector. Select either NTSC or PAL
depending on the video viewing and recording devices connected to the camera. Select Save.
Select video format
Save