Recording and Playout of Multimedia Conferencing Sessions: A Standard Approach

摘要

This paper deals with the challenge of session recording, with special reference to multimedia conferences, both centralized and distributed. Standardization efforts related to both multimedia conferencing and session recording are presented in the paper, and taken into account in our proposal. In the approach we herein present, each involved medium is recorded separately, and is then properly tagged in order to maintain related metadata information. A SMIL (Synchronized Multimedia Integration Language) description is used as a standard presentation format in order to put the individual recordings altogether and handle their synchronization. Such SMIL metadata can subsequently be exploited by an interested user by means of a compliant player in order to start the playout of the integrated multimedia conference session. The paper also describes a complete implementation of the proposed recording architecture made available by our Meetecho conferencing platform.