Vivotek ND9541 - Page 68

VIVOTEK - Built with Reliability
68 - User's Manual
Video
The Video window allows you to congure all video streams (the no. of stream available can be
different for different models). You can congure the following:
1. Codec: video compression codec in H.264, MPEG-4, or MJPEG. Note that MPEG-4 is not
supported for Liveview.
2. Frame size: video resolution. Note that due to the limited CPU resources, you may not be
able to change the resolution to a very high value, e.g., 5MP in the 1920x1920 resolution.
3. Maximum frame rate: the highest frame rate.
4. Intra frame period: How often an I-frame will be inserted into the video stream.
5. Video quality: You may either select Constant bit rate or Fixed Quality as the dening rules for
video transmission:
Constant bit rate Places a packet size threshold on video frames; This guarantees
the frame rate per second performance, yet image quality can be
compromised if bandwidth is not sufcient in your network environment.
Fixed Quality Guaranteed video quality, and to ensure image quality, some frames may
be dropped when bandwidth is not sufcient.
When done with the conguration, click the Apply button.