Vivotek SD8111 User Manual page 61

Video quality settings for stream 1 / stream 2
Click the stream item to display the detailed information.
This Network Camera offers real-time H.264, MPEG-4 and MJEPG compression standards (Triple
Codec) for real-time viewing.
If H.264 / MPEG-4 mode is selected, the video is streamed via RTSP protocol. There are four parameters
for you to adjust the video performance:
■ Frame size
You can set up different video resolution for different viewing devices. For example, set a smaller
frame size and lower bit rate for remote viewing on mobile phones and a larger video size and a higher
bit rate for live viewing on web browsers. Note that a larger frame size takes up more bandwidth.
■ Maximum frame rate
This limits the maximum refresh frame rate per second. Set the frame rate higher for smoother video
quality.
The frame rates are selectable at 1fps, 2fps, 3fps, 5fps, 8fps, 10fps, 15fps, 20fps, 25fps, and 30fps.
You can also select Customize and manually enter a value. The frame rate will decrease if you select
a higher resolution.
■ Intra frame period
Determine how often to plant an I frame. The shorter the duration, the more likely you will get better
video quality, but at the cost of higher network bandwidth consumption. Select the intra frame period
from the following durations: 1/4 second, 1/2 second, 1 second, 2 seconds, 3 seconds, and 4 seconds.
Advanced Mode
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User's Manual - 61