System, computer program product and method for transferring a video stream

A method for verifying a received video stream, comprising;

• transferring to a sender a secret value being known to a receiver;
• the receiver receiving a first produced video stream containing as a part of a respective pixmap of one or several frames of the first produced video stream a respective contained video frame of the first source video stream;
• identifying two or more graphical objects in the first produced video stream, the graphical objects being useful to unambiguously determine a received verification code;
• determining the received verification code based on the identified graphical objects;
• verifying the received verification code based on the secret value;
• determining a contained video stream based on the one or several contained video frames;
• and
• displaying the contained video stream, and not the graphical objects, on a screen display.

A system for transferring a first source video stream, the system comprising a sender and a receiver, the sender being configured to:

• determine a first verification code;
• translate the first verification code into two or more distinct and different graphical objects, the graphical objects being useful to unambiguously determine the first verification code based on visual identification of each of the graphical objects;
• produce a first produced video stream, the first produced video stream comprising one or several frames of the first source video stream as well as the graphical objects, the graphical objects not overlapping with frames of the first source video stream;
• and
• transfer the first produced video stream from the sender to the receiver, wherein:
• each of the graphical objects is configured with one or several respective distinct graphical features, the one or several distinct graphical features being defined in a more coarse-grained manner, on pixel information level, than the first source video stream.