视频加密问题 [英] Video Encryption Problem

问题描述

美好的一天！我只想寻求帮助来逐帧加密视频！

我知道如何对图像本身进行加密，但是从视频中提取，提取图像，对每个图像进行加密然后再重新构建是另一回事.谁能帮我吗?谢谢！

P.S.

对不起，我的英语不好. :)

Good day! I just would like to as for help to encrypt a video frame by frame!

I know how to encrypt the image itself but from a video, extracting it, encrypting each image and then building it again is a different story. Can anyone help me please? thank you!

P.S.

Sorry for my bad english. :)

推荐答案

如果对帧进行加密，将无法使用压缩算法(空间和时间压缩).您可以选择仅加密压缩算法的输出(一些数字:主要是运动矢量和增量变化)，但是您必须解密多个帧中的数据才能显示某个帧.必须了解视频编码的工作原理.

If you encrypt a frame, you will not be able to use compression algorithms(spatial and temporal compression). You can chose to encrypt only the output of the compression algorithm(some numbers: mainly motion vector and delta changes) but you will have to decrypt data from multiple frames to display a certain frame. Knowing how video encoding works is mandatory.

使用以下链接:

http://msdn.microsoft.com/en-us/library/system.security. cryptography.aspx [^ ]
http://social.msdn.microsoft.com/Forums/pl/csharplanguage/thread/dd2c891c-c2a5-4e0b-a9df-cf0eea216c73 [ C#中的文件加密和解密 [ http://www.dreamincode.net/forums/topic/115906-video-encryption-p2p / [^ ]


谢谢，
Ambesha

Use the following links:

http://msdn.microsoft.com/en-us/library/system.security.cryptography.aspx[^]
http://social.msdn.microsoft.com/Forums/pl/csharplanguage/thread/dd2c891c-c2a5-4e0b-a9df-cf0eea216c73[^]
File Encryption and Decryption in C#[^]
http://www.dreamincode.net/forums/topic/115906-video-encryption-p2p/[^]


Thanks,
Ambesha

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