BLANKOM HDE-(4)264B/265B User Manual
Version 1.1 – 02-2019
Page - 18 -
techn. data are subject to change w/o notice!
If VBR was selected, another setting appears:
Min Qp / Max Qp
Quantization in an H.264 encoder is controlled by a quantization parameter, QP, that ranges from 0 to 51.
QP is an index used to derive a scaling matrix. It is possible to calculate the equivalent quantizer step size
(Qstep) for each value of QP. As QP increases, Qstep increases; in fact, Qstep doubles for every increase of 6
in QP.
[5-60] (Encoded frame rate: 5-60 available, it isn’t available for
interlaced
usage/inputs “I ”).
The default settings are almost sufficient but you can play with them…
Should be kept as default on auto
but might be changed manually:
To change the video quality, higher level = higher fluctuation
Key-Interval:
[5-200] (is the gap to show “I frame” and “P frame” 100sec / 25= every 4sec comes one I frame)
