| 摘要 |
A method in reception of a multiplex signal, comprising one or more data units, and at least one framing data block in each multiplex signal. The method comprises: searching for said framing data block from a received multiplex signal; demultiplexing said one or more data units according to the information in said framing data block; generating one or more demultiplexed signals from said demultiplexed data units, and forwarding said demultiplexed signals for decoding ( 50 ). At multiplexing possible invalidity of demultiplexed video data units is detected ( 51 ), and as a response to a detected invalidity in a demultiplexed video data unit, an error indication to the demultiplexed video data signal is added ( 52 ).
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