Brickcom OSD-200 20xp - Manual (Page 65)

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 Mirror
If select <Mirror>, the image will be rotated horizontally.
 90 Degree Counterclockwise / Clockwise
Selecting <90 degree counterclockwise> / <90 degree clockwise>
will make the image rotate 90° counterclockwise / clockwise.
 180 Degree Rotate
Selecting <180 Degree> will make the image rotate 180°.
Click on <Save> to confirm the setting.
D. 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. The
setting range is from 2 to 64. Default value is 60, which means there is
one I-frame in every 60 frames. A longer GOV length means lower
I-frame frequency. The default value for H.264-1 / H.264-2 / H.264-3 /
H.264-4 is 60 / 60 / 30 / 30.
Click on <Save> to confirm the GOV setting.
E. H.264 Profile
Users can set each H.264 channel to <Baseline Profile>, <Main
Profile> or <High Profile> according to its compression needs. The
default setting is <Main Profile>.
8.2 Video Compression
The Video Compression setting can be found under this path: Streaming>
Video Compression.
Users can select a proper MJPEG/H.264 compression mode on the video
compression page, depending on the application.
A. MJPEG Q (Quality) factor
A higher value implies higher bit rates and higher video quality. The
default setting of MJPEG Q factor is 35; the setting range is from 1 to
70.