User's Manual
VIVOTEK
User's Manual - 193  
2~97 
<product dependent> 
<product
dependent>
(This must be present if mjpeg_quant
is equal to 0, 99) 
<product dependent> 
mjpeg_maxframe  1~25, 
26~30 (only for NTSC or 
60Hz CMOS) 
15  Set maximum frame rate in fps (for 
JPEG).
mpeg4_intraperiod  250, 500, 1000, 2000, 3000,
4000 
1000  Intra frame period in milliseconds. 
mpeg4_ratecontrolmode cbr, vbr  vbr  cbr: constant bitrate 
vbr: fix quality 
mpeg4_quant  0, 1~5 
99, 1~5 
<product dependent> 
3  Quality of video when choosing vbr in 
“mpeg4_ratecontrolmode”. 
0,99 is the customized manual input 
setting. 
1 = worst quality, 5 = best quality. 
<product dependent> 
mpeg4_qvalue 1~31 
2~31 
<product dependent> 
7
<product
dependent>
Manual video quality level input. 
(This must be present if mpeg4_quant
is equal to 0, 99) 
<product dependent> 
<product dependent> 
mpeg4_bitrate 1000~8000000 
1000~4000000 
<product dependent> 
512000 
<product
dependent>
Set bit rate in bps when choosing cbr 
in “mpeg4_ratecontrolmode”. 
mpeg4_maxframe  1~25, 
26~30 (only for NTSC or 
60Hz CMOS) 
10 
15 
<product
dependent>
Set maximum frame rate in fps (for 
MPEG-4). 
h264_intraperiod  250, 500, 1000, 2000, 3000,
4000 
1000  Intra frame period in milliseconds. 
h264_ratecontrolmode  cbr, vbr  vbr  cbr: constant bitrate 
vbr: fix quality 
h264_quant  0, 1~5 
99, 1~5 
<product dependent> 
3  Quality of video when choosing vbr in 
“h264_ratecontrolmode”. 
0,99 is the customized manual input 
setting. 
1 = worst quality, 5 = best quality. 
<product dependent> 
h264_qvalue 0~51 
<product dependent> 
30 
<product
Manual video quality level input. 
(This must be present if h264_quant is










