User manual
VIVOTEK
172 - User's Manual
0
s<0~(m-1)>_h
264_cbr_qperce
nt
1~100  4/4  Select customized quality in a 
normalized full range. 
1: Worst quality 
100: Best quality 
* Only valid when "ratecontrolmode"= 
cbr and "quant"= 100. 
* Only available when 
"capability_smartstream_version"=2.
0
s<0~(m-1)>_h
264_bitrate 
20000~"capability_videoin_c<n>_h2
64_maxbitrate" 
4/4  The target bit rate in constant bit rate 
mode.
*Only valid when "ratecontrolmode"= 
cbr
s<0~(m-1)>_h
264_prioritypoli
cy
framerate,imagequality  4/4  Set prioritypolicy 
*Only valid when "ratecontrolmode"= 
cbr
s<0~(m-1)>_h
264_maxframe 
1~"capability_videoin_c<n>_h264_m
axframerate" 
1/4  The maximum frame rates of a H264 
stream at different 
resolutions("capability_videoin_c0_re
solution") are recorded in 
"capability_videoin_c<n>_h264_maxf
ramerate" 
s<0~(m-1)>_h
264_profile 
0~2  1/4  Indicate H264 profiles 
0: baseline 
1: main profile 
2: high profile 
s<0~(m-1)>_h
265_dintraperio
d_enable 
<boolean>  4/4  Enable "Dynamic intra frame period". 
* Only available when 
"capability_videoin_c<0~(n-1)>_dint
raperiod_support" is 1 and h265 is 
listed in "capability_videoin_codec". 
* We support this parameter when the 
version number (httpversion) is equal 
or greater than 0301c. 
s<0~(m-1)>_h
265_intraperiod 
250, 500, 1000, 2000, 3000, 4000  4/4  The time interval between two 
I-frames (Intra coded picture). 










