Transmission stream remultiplexing method

The present invention relates to a transport stream re-multiplexing method, which re-multiplexes multi-input single-program transport stream into a multi-program transport stream for outputting. The method includes: first of all, reconfiguring the program specific information PSI and service information SI of the output transport stream according to counted program specific information PSI and service information SI of the input transport stream; secondly, dynamically uniformly and interlacedly outputting the valid data and empty packets of each transport stream according to the rate of the output transport stream; and substituting the empty packets in a certain interval into the program specific information PSI and service information SI. The invention only differentially tunes the original PCR rather than rewriting the PCR value.