FIELD: radio engineering, communication.
SUBSTANCE: receiving encoded audio/video content in the form of a stream of packet data containing one or more programmes having data packets identified by corresponding sets of one or more packet identifiers, and containing identification data which establish correspondence between programmes and corresponding sets of packet identifiers; selecting data packets form the stream of packet data for the required programme according to the set of packet identifiers, defined by identification data for said stream relative to the required programme; selecting additional data packets from the stream of packet data, from which the programme was selected, containing packet identifiers not included in the identification data for said stream of packet data; generating a composite stream of packet data from the selected packets; generating identification data of the composite stream indicating packet identifiers included in the composite stream of packet data, and transmitting the composite stream of packet data to a content decoder for decoding the programme from the composite stream of packet data according to packet identifiers contained in the identification data of the composite stream.
EFFECT: concealed transmission of certain packets such that the user is not aware, which enables to transmit, to a receiver, data which a potential hacker will find hard to detect and use illegally.
16 cl, 24 dwg
