User`s manual

VIVOTEK
User's Manual - 151
(WxH) (width must be 16x or 32x and
height must be 8x)
crop_preview < boolean > 0 1/99 Usage for UI of crop setting
s<0~(m-1)>_codectype mpeg4, mjpeg,
h264
h264 1/4 Video codec type.
s<0~(m-1)>_resolution Reference
capability_vide
oin_resolution
1280x960
(
2
nd
stream:
800x600;
3
rd
stream:
640x480
)
1/4 Video resolution in pixels.
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 cbr 1/4 cbr, constant bitrate
vbr, fix quality
s<0~(m-1)>_mpeg4_priorit
ypolicy
framerate,
imagequality
framerate
(
3
nd
stream:
Imagequali
ty
4
th
stream:
imagequali
ty
)
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)>_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_quant =
99)
s<0~(m-1)>_mpeg4_qperce
nt
1~100 50 1/4 Manual video quality level input.
(s<0~(m-1)>_mpeg4_quant =