VIVOTEK
User's Manual - 201
© 2022 VIVOTEK INC. All Right Reserved
62
NAME
VALUE
SECURITY(
get/set)
DESCRIPTION
s<0~(m-
1)>_smartfps_
enable
<boolean>
4/4
Enable "Smart fps" function.
* Only available when
"capability_videoin_c<0~(n-
1)>_smartfps_support" is 1.
* We support this parameter when
the version number (httpversion) is
equal or greater than 0309a.
s<0~(m-
1)>_h264_dint
raperiod_enab
le
<boolean>
4/4
Enable "Dynamic intra frame period".
* Only available when
"capability_videoin_c<0~(n-
1)>_dintraperiod_support" is 1.
* We support this parameter when
the version number (httpversion) is
equal or greater than 0301c.
s<0~(m-
1)>_h264_intr
aperiod
250, 500, 1000, 2000,
3000, 4000
4/4
The time interval between two I-
frames (Intra coded picture).
The unit is millisecond (ms).
s<0~(m-
1)>_h264_rate
controlmode
cbr, vbr
4/4
cbr
: Constant bit rate mode.
vbr
: Fixed quality mode, all frames are
encoded in the same quality.
s<0~(m-
1)>_h264_qua
nt
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 valid when
"h264_ratecontrolmode"= vbr.
s<0~(m-
1)>_h264_qval
ue
0~51
4/4
Manual video quality level input. The
Q value which is used by encoded
library directly.
* Only valid when
"h264_ratecontrolmode"= vbr and
s<0~(m-1)>_h264_quant = 99.
s<0~(m-
1)>_h264_qpe
rcent
1~100
4/4
Select customized quality in a
normalized full range.
1: Worst quality
100: Best quality
* Only valid when
"h264_ratecontrolmode"= vbr and
"quant"= 100.
s<0~(m-
20000~"capability_videoin 4/4
The maximum allowed bit rate in fixed
© 2022 VIVOTEK INC. All Right Reserved
63
NAME
VALUE
SECURITY(
get/set)
DESCRIPTION
1)>_h264_max
vbrbitrate
_c<0~(n-
1)>_h264_maxbitrate"
quality mode.
When the bit rate exceeds this value,
frames will be dropped to restrict the
bit rate.
* Only valid when
"h264_ratecontrolmode"= vbr
s<0~(m-
1)>_h264_cbr_
quant
1~5, 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
"cbr_qpercent"
* Only available when
"h264_ratecontrolmode"= cbr.
s<0~(m-
1)>_h264_cbr_
qpercent
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.
s<0~(m-
1)>_h264_bitr
ate
20000~"capability_videoin
_c<0~(n-
1)>_h264_maxbitrate"
4/4
The target bit rate in constant bit rate
mode.
* Only valid when
"h264_ratecontrolmode"= cbr
s<0~(m-
1)>_h264_prio
ritypolicy
framerate,imagequality
4/4
Set prioritypolicy
* Only valid when
"h264_ratecontrolmode"= cbr
s<0~(m-
1)>_h264_max
frame
1~"capability_videoin_c<0
~(n-
1)>_h264_maxframerate"
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)>_h264_prof
ile
0~2
* Available values can also
be <string> listed in
"capability_videoin_c<n>_
h264_profile"
1/4
Indicate H264 profiles
0: baseline
1: main
2: high
* It’s recommended to use available
values from
"capability_videoin_c<n>_h264_profil
e".
s<0~(m-
<boolean>
4/4
Enable "Smart Q" function.