New topics on DVTS

Kazuhiro Mishima <three@sfc.wide.ad.jp>

Keio University, Graduate School ofMedia and Governance

Doctor Course

Agenda

• Latest update of DVTS for WindowsXP

• Session signaling issues for the next generation of DVTS

Latest update ofDVTS for WindowsXP

Released ver.0.0.2 rev.1

• Some minor bugs are fixed– Unknown format : 0 problem

• depends on the environment

• SSM capable– IPv4 SSM ok!– IPv6 SSM ng

• WindowsXP doesn’t support MLDv2

ver.0.0.2 rev.1

Next generation ofDVTS for WindowsXP (0.0.3.x?)

• Multi-format– DV– MPEG2-TS(HDV)

• Environment Adaptation– CPU– Memory– Network

→Auto configuration, Auto adaptation

Beta release (only support Multi-format function)

• DVTS (DV mode)– receive DV stream– send DV stream– IEEE1394 input

support– IEEE1394 output

support– PC Monitor output

support

• DVTS (HDV mode)– receive HDV stream– send HDV stream– IEEE1394 input

support– PC Monitor output

support

MPEG2 Video Decoder is required(WindowsXP doesn’t have any MPEG2 Video Decoder)

MPEG2 Video Decoder

• Checked– Elecard MPEG-2 Decoder and Streaming Pack (Product)

• http://www.elecard.com/download/

– GPL MPEG1/2 DirectShow Decoder Filter (Free)

• http://sourceforge.net/projects/gplmpgdec/

• Unchecked– ffdshow (Free)

• http://sourceforge.net/projects/ffdshow

– others…

HDV mode

• DVTS for WindowsXP compatible GUI

Download Here!!http://www.sfc.wide.ad.jp/DVTS

DVTS 0.0.2-1

http://beta.dvts.info/setup-0.0.2-1.exe

DVTSng 0.0.0-0

http://beta.dvts.info/setup-0.0.0-0.exe

Session signaling issues for the next generation of DVTS

Design and Implementationof area-based session directory system

(Channel Reflector)

Session Signaling

• Session Manager– Control some DV stations (sender, receiver…)

• Session Directory– Find DV some sessions

Session Directory issues

• Session Directory– SDP+SAP for multicast

• Issues– Deployment– Scalability

• no mentions for “Global Internet”

– Transmission Area• SAP uses multicast TTL for limiting

Many many troubles.. Well deployed??

Channel Reflector

• Multicast Session Directory System

• Features– Web-based application

• Apache + Perl + MySQL + LWP

– SDP based session description– Tree architecture– Scope architecture

• Manage channels dividing by the content’s area(=scope)

– Refer to RFC4435 (from IETF MMUSIC-WG)• Framework of the IMG (Internet Media Guides)

Screenshots

under development version

Channel Reflector (cont.)

• Architecture– Root CR– Parent CR– Child CR– Friend CR

– ScopeLabel

Channel Reflector (cont.)

• Architecture– Peer CR

Peer between Root CRs

Implementation Status

• Admin GUI – now implementing…– Manage CRs– Manage ScopeLabels– Manage Channels

• User GUI (Customizable)– View Channels

• like a TV Guide

– Search Channels