VIVOTEK
138 - User's Manual
s<0~(m-1)>_svc_bitraterest
riction
average,
upperbound
4/4 “average” indicates the average bit rate
will be equal to its target bit rate.
“upperbound” indicates the bit rate will
always not exceed its target bit rate.
s<0~(m-1)>_svc_prioritypol
icy
framerate,
imagequality
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)>_svc_ratecontro
lmode
cbr, vbr 4/4 cbr, constant bitrate
vbr, fix quality
s<0~(m-1)>_svc_quant 1~5
99, 100
4/4 Quality of video when choosing vbr in
“ratecontrolmode”.
99 is the customized manual input
setting.
1 = worst quality, 5 = best quality.
100 is percentage mode.
s<0~(m-1)>_svc_qvalue 0~51 4/4 Manual video quality level input.
(s<0~(m-1)>_svc_quant = 99)
s<0~(m-1)>_svc_qpercent 1~100 4/4 Manual video quality level input.
(s<0~(m-1)>_svc_quant = 100)
s<0~(m-1)>_svc_bitrate 1000~160000
00
4/4 Set bit rate in bps when choosing cbr in
“ratecontrolmode”.
s<0~(m-1)>_svc_maxframe 1~25,
26~30 (only
for NTSC or
60Hz CMOS)
1/4 Set maximum frame rate in fps (for svc).
s<0~(m-1)>_svc_profile
<product dependent>
0~2 1/4 Indicate SVC profiles
0: baseline
1: main profile
2: high profile
s<0~(m-1)>_h264_intraperi
od
250, 500,
1000, 2000,
3000, 4000
4/4 Intra frame period in milliseconds.
s<0~(m-1)>_h264_bitratere
striction
average,
upperbound
4/4 “average” indicates the average bit rate
will be equal to its target bit rate.
“upperbound” indicates the bit rate will
always not exceed its target bit rate.
s<0~(m-1)>_h264_priorityp framerate, 4/4 The policy to apply when the target bit