Play videos from memory stream

Question

Couldn\'t find any satisfying answer anywhere so far...

I\'m working on a C# WinForms .NET3.5 application that needs to load video files from a database BLOB and pla

Answer 1

You should be able to do this by writing a thin wrapper (I assume you are in managed code) on VLC then utilize invmem and imem. Some examples are given of passing input can be found at: here and here

Answer 2

You are right the most popular approach is to use DirectShow but in this case you have to build graph etc. It's not easy to start using DirectShow if you have not had experience in this area.

Another quite rich idea (and a "general idea" as you wrote) is to hook file calls like ReadFile and SetFilePointer and translate these calls to memorystream's methods (Read, Seek), so the calling code would think that it works with really existing file.

For example here an article that shows how to play video that is encrypted chunk by chunk, playing without decryption the whole file, and without dropping decrypted chunks to a disk: http://boxedapp.com/encrypted_video_streaming.html