How to decrypt a video file and stream it to media player (axWindowsMediaPlayer) without saving to disk

I am trying to implement a windows form application in C# and most of stuff available online... but can someone tell how to implement below mentioned process - 2 for video file Decryption and stream directly to media player without saving file to disk.

PROCESS

PROCESS - 1 Video Encryption Process

Video File >> Read file >> encryption >> save to a file

PROCESS - 2 Video Decryption and Streaming Process

Encrypted File >> Read from file >> decryption >> stream to media player (axWindowsMediaPlayer)

Total Process Used
Reading file
- file-stream
- in byte array
- frame-wise
- Buffer
Encryption / Decryption
- many ways or this and many more...
Save to file
- normal algorithm
Video Streaming
- don't know :(

I read many stuff online but this i don't found. Secondly somebody suggest not to waste time on DRM as its not safe... someone on another forum suggest to swap initial bits so that while playing it get garbage value and not play directly and implement re-swapping programmaticly.

Tags: C# (C# 4.0), Security (Encryption), Streaming, Video