High standard-definition video-audio IO card with internal switching function

Abstract

The invention relates to a high standard-definition video-audio IO card with an internal switching function. The high standard-definition video-audio IO card comprises a plurality of video-audio input ports and a plurality of video-audio output ports, wherein each input port is connected with a respective interface conversion chip of SDI input signals, the video-audio output ports are connected with respective SDI output driving chips, and the interface conversion chip of each SDI input signal and the SDI output driving chips are connected with a field programmable logic chip. Through the configuration of an internal switching mode, the high standard-definition video-audio IO card can achieve simultaneous acquisition of various videos with different resolution ratios on the videos input from the outside in one or more forms, achieve simultaneous broadcasting of various videos with different resolution ratios on the videos output by software in one or more forms, achieve aliasing of a plurality of paths of the videos input from the outside and a plurality of paths of the videos broadcast by the software, and achieve the functions of switching the videos and the audios input from the outside and the videos and the audios output by the software and the like. The high standard-definition video-audio IO card can be widely used in various types of devices of broadcasting television high standard-definition production and broadcasting processes.

Description

technical field [0001] The invention relates to a high-standard-definition video and audio IO card with an internal switching function, which is an electronic device and an input-output interface card installed on a computer expansion slot. It is an interface card for video and audio processing. Background technique [0002] The history of the development of computer technology is also the history of the development of equipment in the broadcast television industry. With the improvement of computer hardware performance and software technology level, video special effects and video encoding and decoding algorithms can be completed by software. The mainstream architecture, as well as the mainstream architecture of video server products such as recording and broadcasting. The openness of computer platforms, the continuous improvement of CPU and GPU (high-performance graphics card) processing capabilities, and the scalability of software make it very easy to add new features, ...

AI Technical Summary

Problems solved by technology

These video and audio IO boards can be used in certain types of broadcasting equipment, but some functions in the design of the equipment will be limited by the board and cannot be realized (for example: it is not possible to realize multiple video resolutions for externally input video Simultaneous acquisition, it is impossible to simultaneously broadcast multiple videos with different resolutions to the video output by the software, etc.), some can be realized by installing multiple different types of boards in a host computer, but this is facing the problem of boards Accurate synchronization of video and audio signals and many other issues

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