User Manual

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Variable Bitrate
It means that the device automatically adjust the bitrate under the set Max. Bitrate. The compression speed is slower than that
of the constant bitrate. But it guarantees the image quality of complex scenes.
V. Video Quality
When Bitrate Type is set as Variable, video quality is configurable. Select a video quality according to actual needs. Note that higher
video quality requires higher bandwidth.
VI. Frame Rate
The frame rate is to describe the frequency at which the video stream is updated and it is measured by frames per second (fps).
A higher frame rate is advantageous when there is movement in the video stream, as it maintains image quality throughout. Note
that higher frame rate requires higher bandwidth and larger storage space.
VII. Video Encoding
It stands for the compression standard the device adopts for video encoding.
Note
Available compression standards vary according to device models.
 H.264
H.264, also known as MPEG-4 Part 10, Advanced Video Coding, is a compression standard. Without compressing image quality, it
increases compression ratio and reduces the size of video file than MJPEG or MPEG-4 Part 2.
 H.265
H.265, also known as High Efficiency Video Coding (HEVC) and MPEG-H Part 2, is a compression standard. In comparison to H.264, it
offers better video compression at the same resolution, frame rate and image quality.
 MJPEG
Motion JPEG (M-JPEG or MJPEG) is a video compression format in which intraframe coding technology is used. Images in a MJPEG
format is compressed as individual JPEG images.
 Profile
This function means that under the same bitrate, the more complex the profile is, the higher the quality of the image is, and the
requirement for network bandwidth is also higher.
 Frame Interval
I-frame interval defines the number of frames between 2 I-frames.
In H.264 and H.265, an I-frame, or intra frame, is a self-contained frame that can be independently decoded without any reference
to other images. An I-frame consumes more bits than other frames. Thus, video with more I-frames, in other words, smaller I-frame
interval, generates more steady and reliable data bits while requiring more storage space.
 SVC