TRANSCODER-MULTIPLEXER (TRANSMUX) SOFTWARE ARCHITECTURE

摘要

A digital video transcoder-multiplexer (transmux) architecture that is fully software-implemented. The transmux (200) includes transcoder processing elements (TPEs) (240) that may use a very long instruction word (VLIW) media processor (105) for performing transcoding, and de-assembly and re-assembly at a transport stream level, and a co-processor (131) for providing de-assembly and re-assembly at an elementary stream level. The processors operate in parallel, at least in part, to optimize throughput and provide processing load balancing. A transmux architecture that is fully software implemented is provided to allow upgrading to handle new functions, fix hardware or software problems, test new processes, adapt to changing customer requirements, and so forth.