Nomenclature of monitoring system-variable code stream coding and decoding technology

Variable stream codec technology-Variable stream codec technology means that the codec can automatically adjust the bandwidth according to the amount of data. When the image changes faster and the color is richer, the bandwidth allocated is larger; the image changes Slower and less bandwidth allocated when the colors are less abundant, which saves the hard disk space to the maximum while ensuring the image recording quality.

Fixed stream encoding and decoding-The bandwidth provided by the fixed stream encoding and decoding is fixed. Regardless of the amount of data, when the image is rich in color and changes rapidly, the bandwidth is often insufficient to reduce the quality of the video. It seems that the image is a bit paused or Color changes; when the amount of image data is not large, more bandwidth is provided and storage space is wasted.