A resin composition comprising at least 0. The apparatus includes a saddle and a base. To avoid having to resynchronise the input stream coming from the external coprocessor, it is proposed according to the invention to transmit, with at least one transport packet of said input stream transmitted to the external coprocessor, an item of \u2018synchronisation\u2019 information based on the input timestamp of said transport packet at the multiplexer input. The wet reagent includes from about 0.