In practice, this is actually pretty difficult to do. They can send you cease and desist, block you via the ToS, threaten legal action, add stronger crypto, etc. It's different than DRM because Snapchat owns the entire system.
Also, once your friends realize you're using the "Snapchat recorder" they'll stop sending you snaps entirely.
they read bits from the camera api, transmit them, and draw them on the recipients screen. they don't need to be compatible with any 3rd party like DRM-restricted systems.
Also, once your friends realize you're using the "Snapchat recorder" they'll stop sending you snaps entirely.