Takeshi Takahashi, H. Kasai, T. Hanamura, H. Tominaga
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引用次数: 4
Abstract
MPEG-2 Multi-program Transport stream (TS) achieves improvement of transmission efficiency by multiplexing several MPEG-2 streams. In this paper, we propose a transcoder which achieves rate reduction of MPEG-2 multi-program TS. For the purpose of realizing MPEG-2 multi-program TS transcoder, this transcoder requires a rate control method and re-multiplexing method: The former improves average SNR values in total of streams, and the latter achieves the evasion from failure of STD buffer. Next, from simulation experiments, we compare the conventional rate control methods to the proposed one. On the other hand, we show the state of STD buffer. Finally, we show the effectiveness for our proposed scheme.
MPEG-2多程序传输流(Multi-program Transport stream, TS)通过将多个MPEG-2流复用来提高传输效率。本文提出了一种实现MPEG-2多程序TS降码的转码器，为了实现MPEG-2多程序TS转码器，该转码器需要一种速率控制方法和重复用方法，前者提高了总流的平均信噪比值，后者实现了对STD缓冲区失效的规避。然后，通过仿真实验，将传统的速率控制方法与本文提出的速率控制方法进行了比较。另一方面，我们显示了STD缓冲区的状态。最后，验证了该方案的有效性。
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