Methods for content sharing utilizing a compatibility notification to a display forwarding function and associated devices

Method in an audiovisual program receiver-decoder client device (1), the method using a function for providing notification of capability specific to a standardized display forwarding function to inform a remote item of equipment of the capability of the device to transmit an item of content. The method comprises a step of insertion (S1) of information elements into a link layer of a communication interface of the device, a step of reception (S2) of an item of information from a second remote device (7) connected to the interface by a direct point-to-point link (6), a step of configuration (S3) of the control of the reception and/or reproduction of an item of audiovisual content received by the device using the item of information representative of a remote command and a step of insertion of data (S4) adapted to the insertion of a coded, received item of audiovisual content into frames inserted into a data stream transmitted at the MAC link layer of the interface (3) to the remote device (7) connected via the intermediary of the link (6).