87
Video Rotate Type
Users can change video display type if necessary. Selectable video rotate types
include Normal video, Flip video, Mirror video, 90 degree clockwise, 180 degree
rotate, and 90 degree counterclockwise. Refer to the following descriptions for
the different video rotate type.
Flip video
If <Flip video> is selected, the image will be rotated vertically.
Mirror video
If <Mirror video> is select, the image will be rotated horizontally.
90 degree Counter-/clockwise
Select <90 degree counter-/clockwise> to rotate the image by 90°
counter-/clockwise.
180 degree rotate
Select <180 degree rotate> to rotate the image by 180°.
Click on <Save> to confirm the setting.
GOV Settings
Users can set the GOV length to determine the frame structure (I-frames and
P-frames) in a video stream for saving bandwidth. Less bandwidth is needed if
the GOV length is set to a high value. However, the shorter the GOV length, the
better the video quality is. The setting range is from 1 to 255. The default value
for H.264-1 / H.264-2 / H.264-3 / H.264-4 is 60 / 60 / 30 / 30 (NTSC) or 50 / 50 /
25 / 25 (PAL). Click on <Save> to confirm the GOV setting.
Click on <Save> to confirm the setting.
H.264 Profile
Users can set each H.264 Profile to <Baseline Profile>, <Main Profile> or <High
Profile> according to its compression needs. With the same bit rate, the higher
the compression ratio, the better the image quality is. The default setting is
<Main Profile>.
NOTE:
Please make sure the higher compression ratio is supported by
the system before setup.
Click on <Save> to confirm the setting.