VTJukebox: implementation issues for RTP-based recording and on-demand multicast of multimedia conferences

Abstract

We describe the implementation of a system for reliable recording and on-demand playback of multimedia conferences using the services provided by the RTP/RTCP protocols over an intranet. Implementation issues are underlined regarding the file indexing strategy to support random access during playback, the scheduling of packets to reduce transmission delay jitter, replacement of lost packets within the media stream and recorder allocation and deployment.