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Setup - Video & Audio Setup
Video Configuration
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GOP(Group of Pictures) Size - Set up the number of p-frames (frames which contain only changed information based on the
basic key frame or I-frame) in a GOP.
GOP(Group of Pictures) Size is..
I-frame and P-frame can be created for MPEG4, H.264 and H.265 (HEVC) video compression. I-frame(key-
frame) is essentilly the whole image with all captured data for one specific scene of video. A P-frame is a frame based on the
I-frame, but contains only data that is changed from the original I-frame. A GOP is made up of one I-frame and its corresponding
several P-frames. To improve video quality, set the number of P-frames lower and to decrease image size, set the number of
P-frames to a larger value.
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Profile- The profile defines the subset of bit stream features in H.264, H.265 (HEVC) stream, including color reproduction and
additional video compression.
H.264 : Main, High / H.265 (HEVC) : Main
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Bitrate Mode - Select the bit rate control scheme of video compression to CBR (Constant Bit Rate) or VBR (Variable Bit Rate).
This category will only appear for some codecs.
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.
CBR - To guarantee the designated constant bit rate, the quality of video is controlled in this mode.
Therefore, the quality of video is likely to varying when network traffic is changing.
VBR - To guarantee the designated quality, the bit rate of video stream is changed in this mode.
Therefore, the frame rate of video is likely to varying when network traffic is changing.
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