NTCS
April 2018
Visual Engineering
Video solutions. Integrated
visualengineering.co.uk
Page 24
Video Menu
The Video Page is where all the
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
an encoder 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 encoder with an IP address of
192.168.1.195 the URL is:
rtsp://192.168.1.195/jpeg
• Constant Bitrate
. This is the normal mode of operation, it will output a constant bit-rate for its
IP video stream.
•
Constant Quality
. In this mode the bit-rate is varied in a effort to maintain a constant quality.
The target quality is set using an arbitrary number between 0 to 51, the lower the number the
higher the quality. This is set in the quality field.
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 encoder has two fundamental
modes of operation:
