Substitution method of at least one portion of a video stream and video receiver implementing the method

A multimedia receiver comprising a demultiplexer feeding a decoder, a switching module to transmit either a first multimedia stream or at least a second multimedia to said demultiplexer and at least one processor configured to:

• receive said first multimedia stream;
• transmit the first multimedia stream to said decoder;
• generate a control signal for controlling the switching module,
• transmit said controlling signal to the switching module, the reception of said controlling signal by the switching module triggering:
• at a first instant indicated in said controlling signal, an interruption of the transmission of said first multimedia stream to the demultiplexer, and a transmission of said second multimedia steam to the demultiplexer;
• and
• at a second instant indicated in said controlling signal, a stopping of the transmission of said second multimedia stream to the demultiplexer, and a resuming of the transmission of the first multimedia stream to the demultiplexer, from a part of said first multimedia stream having a timestamp corresponding to said second instant.

A non-transitory computer readable medium comprising code portions which, when loaded into an internal memory and executed by a computer, configure the computer to carry out the steps of:

• receiving by multimedia receiver, a first multimedia stream;
• transmitting the first multimedia stream to a decoder of the multimedia receiver;
• generating a control signal for controlling a switching module configured to transmit either said first multimedia stream or at least a second multimedia steam to a demultiplexer of the feeding a decoder, said demultiplexer and said decoder being embedded in said multimedia,
• the reception of the controlling signal by the switching module triggering:
• at a first instant indicated in said controlling signal, an interruptioning of the transmission of said first multimedia stream to the demultiplexer and a transmission of said transmitting a second multimedia steam to the demultiplexer;
• and
• at a second at indicated in said controlling signal, a stopping of the transmission of said second multimedia stream to the demultiplexer, and a resuming of the transmission of the first multimedia stream to the demultiplexer, from a part of said first multimedia stream having a timestamp corresponding to said second instant.