超高清AVS2编转码加密系统的研究和实现

Research of Ultra-high Definition AVS2 Coding and Transcoding Encryption System

随着数字视频内容清晰度的不断提升,视频的容量也在不断地变大,对于传输和存储的压力也随之增加,视频的编码、转码是解决带宽问题的最佳手段。在编转码的过程中有效地对视频内容进行数字版权的管理,具有很高的科学和社会价值。提出一种基于AVS2的超高清编转码加密系统,该系统在编转码的过程中对视频的关键帧进行加密,从而在不大幅增加编码器运算量的情况下,实现了对节目的版权保护,同时,加密在编码内部实现,这样没有数据传输的中间环节,安全系数也更高。

With the continuous improvement of the definition of digital video content, the capacity of video is constantly increasing, and the pressure on transmission and storage is also increasing. Video coding and transcoding are the best means to solve the bandwidth problem. In the process of coding and transcoding, it is of great scientific and social value to effectively manage the digital copyright of video content. This paper presents a AVS2 based ultra high definition coding and transcoding system. The system encrypts the key frames of video in the process of coding and transcoding. The copyright protection of programs is realized without increasing the amount of computation. At the same time, encryption is implemented inside the coding, so that there is no intermediate link of data transmission, and the safety factor is higher.