Encrypt text in video

[toll]

Hi all
I'm beginner in C++ but I have big big problem
I'm trying for long long time in searching in web to find open source project but no way,
I need open source project work to encrypt text and hide an encryption text in video.
A user interface allow to select a video file and write a text in text box and encrypt it by any encryption algorithm.
Thanks

[naraku9333]

Look up steganography, its not encryption but information hiding.

[toll]

ok many thanks for you
but can you give open source project able to hide text in video....

Many thanks for every one