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24 © 2007 VBrick Systems, Inc.
Configuration: Encoder
Configuration: Encoder > Transport
Transport Rate This option allows selection of the actual transport rate for the
MPEG-2 transport stream transmitted from this encoder. If Auto is
selected, the VBrick will choose an appropriate conservative transport
rate, which will allow any video interval to be clearly transmitted. If
you enter a rate that is less than the combined video, audio and over-head an
error message will be displayed indicating that the rate selected is too low.
Actual Transport
Rate
This read-only parameter provides the actual transport stream rate. It
is of particular interest when the automatic option is selected above.
Even if a transport rate is explicitly selected, the actual transport rate
will differ from the selected rate since only certain rates are
supported.
Transport Content If the model number ends in -xxx1/-xxx2, the user can choose the
transport content to be Video + Audio, Video only or Audio only. If
the model number ends in -xxx0, the option is not displayed and
video and audio always comprises the transport content.
Delay Mode If the model number ends in -xxx1/-xxx2, the delay mode can be set
to Low, Medium or High Delay. If the model number ends in –xxx0,
the delay mode can be set to Low or High Delay. In low and medium
delay modes, the Reference Distance is forced to 1 (no B frames).
Low delay reduces latency but may also reduce video stability,
depending on video content. If minimum latency is not an issue in the
application, high delay will maximize video stability. Default Delay
Mode is set to High Delay.