User Manual

VIVOTEK
User's Manual - 193
© 2019 VIVOTEK INC. All Right Reserved
63
NAME VALUE SECURITY(
get/set)
DESCRIPTION
"2.0"
s<0~(m-1)>_h2
64_cbr_qperce
nt
1~100 4/4 Select customized quality in a
normalized full range.
1: Worst quality
100: Best quality
* Only valid when
"h264_ratecontrolmode"= cbr and
"quant"= 100.
* Only available when
"capability_smartstream_version">=
"2.0"
s<0~(m-1)>_h2
64_bitrate
20000~"capability_videoin
_c<0~(n-1)>_h264_maxbit
rate"
4/4 The target bit rate in constant bit rate
mode.
* Only valid when
"h264_ratecontrolmode"= cbr
s<0~(m-1)>_h2
64_prioritypoli
cy
framerate,imagequality 4/4 Set prioritypolicy
* Only valid when
"h264_ratecontrolmode"= cbr
s<0~(m-1)>_h2
64_maxframe
1~"capability_videoin_c<0
~(n-1)>_h264_maxframera
te"
1/4 The maximum frame rates of a H264
stream at different
resolutions("capability_videoin_c<0~(
n-1)>_resolution") are recorded in
"capability_videoin_c<0~(n-1)>_h264
_maxframerate"
s<0~(m-1)>_h2
64_profile
0~2 1/4 Indicate H264 profiles
0: baseline
1: main profile
2: high profile
s<0~(m-1)>_h2
64_smartq_en
able
<boolean> 4/4 Enable "Smart Q" function.
* Only available when
"capability_videoin_c<0~(n-1)>_smart
q_support" is 1.
* We support this parameter when
the version number (httpversion) is
equal or greater than 0309a.
s<0~(m-1)>_h2 <boolean> 4/4 Enable "Dynamic intra frame period".
© 2019 VIVOTEK INC. All Right Reserved
64
NAME VALUE SECURITY(
get/set)
DESCRIPTION
65_dintraperio
d_enable
* Only available when
"capability_videoin_c<0~(n-1)>_dintra
period_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)>_h2
65_intraperiod
250, 500, 1000, 2000,
3000, 4000
4/4 The time interval between two
I-frames (Intra coded picture).
The unit is millisecond (ms).
* Only available when h265 is listed in
"capability_videoin_codec".
s<0~(m-1)>_h2
65_ratecontrol
mode
cbr, vbr 4/4 cbr: Constant bit rate mode.
vbr: Fixed quality mode, all frames are
encoded in the same quality.
* Only available when h265 is listed in
"capability_videoin_codec".
s<0~(m-1)>_h2
65_quant
1~5,
99, 100
4/4 Set the pre-defined quality level:
1: Medium
2: Standard
3: Good
4: Detailed
5: Excellent
100: Use the quality level in
"qpercent"
99: Use the quality level in "qvalue"
* Only available when h265 is listed in
"capability_videoin_codec" and
"h265_ratecontrolmode"= vbr.
s<0~(m-1)>_h2
65_qvalue
0~51 4/4 Manual video quality level input. The
Q value which is used by encoded
library directly.
* Only available when h265 is listed in
"capability_videoin_codec".
* Only valid when
"h265_ratecontrolmode"= vbr and