User`s manual

7. Streaming
AirLive SD-2020 User’s Manual 66
z 180 Degree Rotate
Selecting <180 Degree> will make the image 180°inversed.
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. The setting range is from 2 to 64. Default value
is 60, which means there are one I-frame every 60 frames. 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.
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 system before
setup.