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VIVOTEK
148 - User's Manual
28
“ratecontrolmode”.
1 = worst quality, 5 = best
quality.
100: Use the quality level in
"qpercent"
99: Use the quality level in
"qvalue"
s<0~(m-1)>_h264_qpercent 1~100 50 4/4 Set quality by percentage.
1: Worst quality
100: Best quality
(s<0~(m-1)>_h264_quant =
100)
s<0~(m-1)>_h264_qvalue 0~51 29 4/4 Manual video quality level
input.
(s<0~(m-1)>_h264_quant =
99)
s<0~(m-1)>_h264_bitrate 1000~4000000
0
6000000 4/4 Set bit rate in bps when
choosing cbr in
“ratecontrolmode”.
s<0~(m-1)>_h264_maxframe 1~25,
26~30 (only for
NTSC or 60Hz
CMOS)
15 1/4 Set maximum frame rate in
fps (for h264).
s<0~(m-1)>_h264_profile 0~2 1 1/4 Indicate H264 profiles
0: baseline
1: main profile
2: high profile
s<0~(m-1)>_mjpeg_priorit
ypolicy
framerate,
imagequality
framerate 4/4 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)>_mjpeg_rateco
ntrolmode
cbr, vbr vbr 4/4 cbr, constant bitrate
vbr, fix quality
s<0~(m-1)>_mjpeg_quant 1~5,99, 100 3 4/4 Quality of video when
choosing vbr in