I-View EC-2MIPN 2-Megapixels Day/Night Box IP Camera - Manual (Page 30)

 Time and Title: Click the button to enable to paste the Time stamp/ Camera Title on the
video on difference position of IP camera.
 Video Encode setup: You can change the resolution, bit rate and frame rate for the sub and
main streaming of IP camera.
The user can select “VBR”, “CBR”, and “CVBR” for the compression mode.
 VBR (Variable Bit Rate): VBR files vary the amount of output data per time segment. It
allows a higher bitrate (and therefore more storage space) to be allocated to the more
complex segments of media files while less space is allocated to less complex segments.
 CBR (Constant Bit Rate): The rate at which a codec's output data is constant. CBR would
not be the optimal choice for storage as it would not allocate enough data for complex
sections (resulting in degraded quality) while wasting data on simple sections.
 CVBR: It is the neutral compression mode between VBR and CBR.
 I-Frame interval: It is the least compressible but doesn't require other video frames to
decode. Less number of I-Frame interval will get less size of video streaming, but the video
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