VIVOTEK
158 - User's Manual
99 is the customized manual
input setting.
1 = worst quality, 5 = best
quality.
100 is percentage mode.
s<0~(m-1)>_mpeg4_qvalue 2~31
7
4/4
Manual video quality level
input.
(s<0~(m-1)>_mpeg4_quant
= 99)
s<0~(m-1)>_mpeg4_qperce
nt
1~100
50
4/4
Manual video quality level
input.
(s<0~(m-1)>_mpeg4_quant
= 100)
s<0~(m-1)>_mpeg4_bitrate 1000~ 40000000
<product
dependent>
s0:
6000000
s1:
6000000
s2: 512000
s3:
6000000
4/4
Set bit rate in bps when
choosing cbr in
“ratecontrolmode”.
s<0~(m-1)>_mpeg4_maxfr
ame
1~30
s0: 30
s1: 30
s2: 15
s3: 30
1/4
Set maximum frame rate in
fps (for MPEG-4).
s<0~(m-1)>_h264_intraperi
od
250, 500, 1000,
2000, 3000, 4000
1000
4/4
Intra frame period in
milliseconds.
s<0~(m-1)>_h264_maxvbr
bitrate
1000~40000000
40000000
4/4
H264 max vbr bitrate
s<0~(m-1)>_h264_
prioritypolicy
framerate,
imagequality
s0:
framerate
s1:
framerate
s2:
imagequalit
y
s3:
imagequalit
y
4/4
The policy to apply when the
target bit rate is not sufficient
to satisfy current encoded
conditions.
“framerate” indicates frame
rate first.
“imagequality” indicates
image quality first.
s<0~(m-1)>_h264_ratecont
rolmode
cbr, vbr
s0: cbr
s1: cbr
4/4
cbr, constant bitrate
vbr, fix quality
