HS-H.265 splicing processor is a signal processing device for multi-signal switching processing of large-screen video processing. It can realize the display of various signal sources on the wall, and supports multi-layer overlay, roaming, arbitrary stitching and zooming Display, support for underlay online replacement, subtitle scrolling, computer desktop push, network camera decoding, audio and video switching output and other functions. The device is designed with highly integrated functions, integrating video and audio acquisition processing, central control control, mobile APP control, visual control set In one device, it can be used in security decoding display, conference system and other fields.