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Audio-Video Conferencing

Submitted By: Aayush Beri Di Wen. Audio-Video Conferencing. Library : Java Media Framework (JMF) Protocol and System Design Code Snippet Simulation. Introduction.

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Audio-Video Conferencing

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  1. Submitted By: AayushBeri Di Wen Audio-Video Conferencing

  2. Library : Java Media Framework (JMF) Protocol and System Design Code Snippet Simulation Introduction

  3. Java Media Framework (JMF) is a java library that enables audio and video (time based media) to be added to Java Applications and Applets Criticism : Cannot play MPEG-2, MPEG-4,Windows Media and other popular media types Solution : Fobs4JMF library integrated with JMF Library : Java Media Framework (JMF)

  4. Protocol used : Real-time Transport Protocol(RTP) • It defines a standardized packet format for delivering audio and video • Developed in 1996 by IETF • Two ports need to specified for • RTP : Always an event port; Carries media streams • RTCP : Next higher odd number; Monitor quality of service Protocol and System Design

  5. System Design • P2P : Peer to Peer Architecture • Unicast& Multicast : Audio and Video • RTP & JMF Send • RTP & JMF Receive Protocol and System Design

  6. Capture Audio/Video Signals Process Audio/Video Signals

  7. Send Audio/Video Signals Receive Audio/Video Signals (STEP 1: Set Receive Stream Listener)

  8. Receive Audio/Video Signals(STEP 2: Receive Stream) (STEP 3: Start Player)

  9. Application only runs in LAN (NAT Restrictions) • No text chat & admin control (Team Management Issues) • JMF is so NOT up-to-date (Format Issues) • Difficulties faced by VoIP Applications • Future Plan: Include : • Stun servers and SIP (NAT) • Text chat & Floor Control Lessons Learned & Future Plan

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