User`s manual

VIVOTEK
152 - User's Manual
100)
s<0~(m-1)>_mpeg4_bitrate 4000~400000
00
3000000
(
3
rd
stream:
512000
)
1/4 Set bit rate in bps when
choosing cbr in
“ratecontrolmode”.
s<0~(m-1)>_mpeg4_maxvb
rbitrate
1000~"capabili
ty_videoin_c<
n>_mpeg4_ma
xbitrate"
40000000 1/4 The maximum allowed bit rate
in fixed quality mode.
When the bit rate exceeds this
value, frames will be dropped to
restrict the bit rate.
* Only valid when
"ratecontrolmode"= vbr
s<0~(m-1)>_mpeg4_maxfr
ame
1~25,
26~30 (only
for NTSC or
60Hz CMOS)
30
(
3
rd
stream:
15
)
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 1/4 Intra frame period in
milliseconds.
s<0~(m-1)>_h264_ratecont
rolmode
cbr, vbr cbr 1/4 cbr, constant bitrate
vbr, fix quality
s<0~(m-1)>_h264_priorityp
olicy
framerate,
imagequality
framerate 1/4 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_quant 1~5,
99, 100
3 1/4 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)>_h264_qvalue 0~51 29 1/4 Manual video quality level input.