Capture data from the Bus

Question

Good afternoon. How do I capture data from the bus when it comes to video or images ? Any ideas ?

Example: When I want to capture bus input data I can use Std::Cin, getline.

But if I had to capture video data and images. Example: I am watching a video by vlc, windows media player or any other video player.

It would be possible with c++ to know what data is going through the data bus ?

Does anyone know any material that talks about this ? It could be articles, books, videos.

Note: I need references.

Thank you.