I'm looking to speak with a video encoding specialist, someone extremely familiar with this type of application development using a variety of codecs, etc.

I need to determine if it is possible to hide a message using a variety of techniques (some that we may need to develop ourselves) into a video file. Essentially, very thorough Steganography.

This message should not be lost in the event of re-encoding, cropping, modification, etc.

I have not yet decided which technology platform to approach this project in, I am leaving it up to the qualified developers that understand what I am trying to achieve.