Research on scheduling process algorithm in IP-based DVB multiplexer
Zou Xu-jie · Applied science and technology · 2010
MPEG-2 transport stream should be processed in the timing relationship when a real-time DVB multiplexer begins to multiplex the input video data. The traditional algorithms only deal with the PCR in the MPEG-2 scheduling. Therefore some limitations exist in the traditional algorithms when dealing with IP-based DVB multiplexer in timing relationship. To break through the limitation of traditional algorithms, this article presents an algorithm that does not depend on the scheduling of the original stream. Accompanying the PCR adjustment, the DTS and PTS are also adjusted in terms of the Video Buffer Verifier's working mode, so that the output transport stream is consistent with MPEG-2 standard. This proposed treatment algorithm was tested actually through the hardware platform and the experiment, and the feasibility of the algorithm was verified.