Design and implementation of 4K ultra HD video recording and playback system based on HI3531D

Abstract

In order to meet the requirements for 4K ultra high-definition video recording, storage and playback, as well as the need for long-term capture and recording of screen information of the operating terminal in important control scenarios such as shipborne, on-board and airborne, it is convenient for post event technical analysis, service quality assessment, drill rehearsal and operation accident liability determination. The domestic video codec processor Hisilicon HI3531D is studied. A video recording and playback system supporting 4K video capture and H.264/H.265 codec is designed and implemented. The compression algorithm of H.264/H.265 coding standard is used to realize the compression, storage and functions of video data. Single channel codec 3840x2160@30fps resolution can reach 17.6Mbps, the codec system delay can reach 110ms in JARI Works OS, and the dual redundant Ethernet switching time can reach 23.5ms.