Guardian VIP
March 2019
Visual Engineering
Video solutions. Integrated
visualengineering.co.uk
Page 42
Video Menu
The Video Page is where all the
camera’s IP encoder parameters
are controlled.
The encoder supports two
encoding formats, H.264 and
MJPEG. The choice of the format
is initiated by the user when the
stream is enabled.
To initiate a H.264 stream from
a camera with an IP address of
192.168.1.195 the URL is:
rtsp://192.168.1.195/h264
To initiate an MJPEG stream from
a camera with an IP address of
192.168.1.195 the URL is:
rtsp://192.168.1.195/jpeg
• Constant Bitrate
. This will output a constant bitrate IP video stream, as set in the Bitrate field.
• Constant Quality
. In this mode the bitrate is varied in a effort to maintain a constant quality.
The target quality is set using a number between 0 to 51, the lower the number the higher
the quality, this is set in the quality field. Amendments to this value are only allowed when the
constant quality mode is enabled. In this mode the ‘ceiling’ bitrate is controlled by the value set
in the Bitrate field, the encoder will attempt to limit the maximum bitrate to this value.
Other video encoder parameters include:
H.264 Resolution
The maximum resolution is 1920x1080, users can select lower resolutions if there is restricted
bandwidth available for the camera’s connection.
H.264 FPS
(frames Per Second)
The maximum frame rate is 30fps, users may choose to select lower frame rates, thereby reducing
the bandwidth required.
H.264 IDR Frame
changes the I frame interval in the H.264 stream by setting the parameter, this
balances the stream’s quality against latency. The default value is 30.
The Video page contains parameters for each encoder type. The Camera has two fundamental
modes of operation:
