PLANET ICA-5250V - Manual (Page 60)

Resolution
There are 5 resolutions that can be chosen.
1920x1080,1280x720 , 640x480, 320x240, or 176x144
Profile
High profile provides better coding efficiency. Note that some
devises do not support every profile. For example, iPhone4 only
supports Main profile.
Bitrate Control Mode
There are CBR﹝Constant Bit Rate﹞ and VBR﹝Variable Bit
Rate﹞to use.
CBR：32Kbps~10Mbps (the higher the CBR is, the better the
video quality is)
VBR：1(Low) ~10(High) – Compression rate, the higher the
compression rate, the lower the picture quality is and vice versa.
The balance between VBR and network bandwidth will affect
picture quality. Please carefully select the VBR rate to avoid
picture breaking up or lagging.
Video Frame Rate The video refreshing rate per second.
60