VIVOTEK
User's Manual - 153
oin_resolution
s<0~(m-1)>_mpeg4_intrap
eriod
250, 500,
1000, 2000,
3000, 4000
1000 1/4 Intra frame period in
milliseconds.
s<0~(m-1)>_mpeg4_rateco
ntrolmode
cbr, vbr s0 : cbr
s1: vbr
s2 : cbr
s3: vbr
1/4 cbr, constant bitrate
vbr, fix quality
s<0~(m-1)>_mpeg4_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)>_mpeg4_qvalue 2~31 7 1/4 Manual video quality level
input.
(s<0~(m-1)>_mpeg4_quan
t = 99)
s<0~(m-1)>_mpeg4_qperce
nt
1~100 29 1/4 Manual video quality level
input.
(s<0~(m-1)>_mpeg4_quan
t = 100)
s<0~(m-1)>_mpeg4_bitrate 1000~320000
00
<product
dependent>
8000000 1/4 Set bit rate in bps when
choosing cbr in
“ratecontrolmode”.
s<0~(m-1)>_mpeg4_maxvb
rbitrate
1000~400000
00
40000000 1/4 Set bit rate in bps when
choosing vbr in
“ratecontrolmode”.
s<0~(m-1)>_mpeg4_maxfr
ame
1~50,
51~60 (only
for NTSC or
60Hz CMOS)
30 1/4 Set maximum frame rate in
fps (for MPEG-4).
3M : 1~30fps
2M : 1~60fps
(for NTSC or 60Hz CMOS)
s<0~(m-1)>_mpeg4_priorit
ypolicy
framerate,imag
equality
framerate 1/4 Set prioritypolicy
s<0~(m-1)>_h264_intraperi
od
250, 500,
1000, 2000,
1000 1/4 Intra frame period in
milliseconds.