Setup - Video & Audio Setup
Video Configuration
GOP(Group of Pictures) Size -
Set up the number of frames (P-frame) which contain only changed information based on basic
frame (I-frame). Regarding videos with lots of movement, if you set GOP size bigger, only the number of P-frames is bigger.
As a result, video resolution will be low but ‘File size’ and ‘Bit-rate can be decreased.
GOP(Group of Pictures) Size is..
I-frame and P-frame can be created for MPEG4 and H.264 video compression. I-frame(=key-frame) means the whole image data for one specific
scene of video. P-frame is image data which has been changed information compared to I-frame GOP is made up of one I-frame and corresponding
several P-frames. To improve video quality, set the number of P-frames smaller and to decrease image size, set the number of P-frames bigger.
Profile -
The profile defines the subset of bit stream features in an H.264 stream, including color reproduction and additional
video compression.
Baseline -
A simple profile with a low compression ratio. The Baseline profile supports I-frames and P-frames.
Main -
An intermediate profile with a medium compression ratio. The main profile supports I-frames, P-frames, and B-frames.
High -
A complex profile with a high compression ratio. The high profile supports I-frames, P-frames, and B-frames.
Smart Bitrate Control
Off -
You can not use the Smart Bitrate Control function.
CVBR (Framerate priority) -
This Mode is for cameras which do not want absolute any frame drop, but still want to get lower
bitrate. It has limitation when the Target bitrate is set to be very low, but actual motion is big or scene is very noisy.
CVBR (Quality priority) -
When the Target bitrate is set to very low, and motion is big, then LBR will try to drop frames, and make
the final fps to be lower, so that it can save its and make the output frames to have better quality.
CBR -
This Mode is a CBR alike mode which is close to traditional security IPCAM, and it's not designed for LBR, It's provided as an
option in LBR library just to help comparison.
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