Fast RTP Detection and Codecs Classification in Internet Traffic

  title={Fast RTP Detection and Codecs Classification in Internet Traffic},
  author={Petr Matousek and Ondrej Rysav{\'y} and Martin Kmet},
This paper presents a fast multi-stage method for on-line detection of RTP streams and codec identification of transmitted voice or video traffic. The method includes an RTP detector that filters packets based on specific values from UDP and RTP headers. When an RTP stream is successfully detected, codec identification is applied using codec feature sets. The paper shows advantages and limitations of the method and its comparison with other approaches. The method was implemented as a part of… CONTINUE READING

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