Community Security Multi-channel Monitoring System Based on FFMPEG Framework

Community digital monitoring has been widely used. However, the professional monitoring equipment of different manufacturers has relatively high costs, and most of them are incompatible with each other. The operation of the monitoring system is relatively complex. Therefore, this paper builds a community security multi-channel monitoring system based on the FFMPEG and Qt frameworks, which is compatible with ordinary cameras, mobile phones and other video capture devices. The system divides the process of processing monitoring videos into three steps: obtaining pictures, format transcoding, and data transmission. In the implementation of the system, the FFMPEG algorithm and its framework are used for decoding and transcoding. It includes three core modules: First, the real-time monitoring module, which displays the real-time pictures collected by various devices and stores them; second, the historical monitoring content playback module, which queries and displays the videos or photos saved locally; third, the log module, which records the main operation behaviors of users. In the design and implementation of the system, the concepts of "data flow-oriented" and "device independence" are proposed, and based on this, the compatibility of different video capture devices is realized, thereby reducing the monitoring configuration cost to a certain extent.