AUDF Developer Grant project: QuickTime Streaming and IPv6

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AUDF Developer Grant project QuickTime Streaming
and IPv6

• Daniel Grimm
• Monash University

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ATcrc Applications Program

• Australian Telecommunications CRC
• Applications Program
• Next Generation Internet

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ATcrc Project 1.1
IPv6 Networking
Network handover performance
802.11
Multimedia Content Sources
GPRS, 3G, etc.
QoS Routing
Dis-similar Client Devices
Heterogeneous Networks
Next Generation Internet
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AUDF Grant

• AIM Make QuickTime Server (DSS) IPv6 capable
• Purpose Use for Demonstations of (Mobile) IPv6
• Video is challenging for networks
• Streaming Video slightly easier
• QuickTime Streaming supports many bandwidths

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Mac OS X IPv6

• 2001-2002
• Mac OS X10.1--10.1.5
• Darwin - recompiled kernel
• IPv6 support old KAME stack
• No IPv6 libraries in frameworks
• Used Linux instead for most work
• Mac for desktop, developer environment

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IPv6 mini tutorial

• 128 bits vs 32 bit IPv4 addresses
• IPv6 Dual host IPv4 IPv6
• IPv6 for all programming
• FFFF130.194.1.99
• Global 3ffe8001abcd1234567
• Local fe8024095fffe301234
• DNS supports IPv6 records - USE NAMES
• Reverse lookup an issue

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Streaming Server and Clients
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QuickTime Streaming Technology

• RTSP Real Time Streaming Protocol
• RTSP//server.monash/sample.mov
• Describe, Play, Stop
• TEXT messages
• TCP/IP transport
• RTP RealTime Transport Protocol
• UDP/IP
• IP can be IPv4 or IPv6

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Streaming Background
Session Description info available from the RTSP
Session
TCP
UDP
UDP
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RTSP sequence
DSS Streaming Server
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HTTP Streaming (Port 80)

• RTSP in HTTP
• Still TCP/IP traffic with larger packets
• RTP in HTTP
• Becomes RTP/HTTP/TCP/IP transport (not UDP/IP)
• More frequent acknowledgement packets
• Slightly larger packets. Performance drops
• HTTP (and multicast) ignored

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QuickTime/Darwin Streaming Server (DSS) Porting
to IPv6

• C Apple public source
• Harder than predicted
• CommonUtilitiesLib - 5 basic files
• 90,000 lines
• UInt32 for IP addresses
• Integer 0 or -1 to initialise
• Socket Hash use binary Integer functions
• Ongoing

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IPv4 to IPv6 changes

• IPv4 address and integer
• 10.0.0.1 00001010--00000001
• -1 as invalid IP address
• Socket Hash function relying on integer binary
  functions
• Text representations . vs
• Localhost 127.0.0.1 vs 1

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IPv6 Darwin Streaming Proxy

• Available now
• http//www.ctie.monash.edu.au/DSS-IPv6
• Supports IPv4 and IPv6 clients
• IPv6 used throughout
• Was C, converted to C
• Used socketcc class library
• 4000 lines of code

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Streaming Proxy and Clients
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Streaming Proxy - What it does

• IPv4 to IPv6 (or IPv4)
• RTSP modifies text
• RTP/UDP unchanged contents
• Supports Reliable UDP
• Supports media source IP different from RTSP
  server

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Streaming Proxy

• Only tested on Linux
• Socketcc on
• MacOSX
• Linux and Solaris
• Should work on all!

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Proxy challenges

• Limited RTSP option support
• Newer QT features break it still
• QuickTime 6.x and DSS 4.1.2 Server issues
• Not robust!
• Security features disabled

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IPv6 Streaming (RTSP/RTP) Client programs

• MPEG4IP for Linux
• QuickTime SDK for Windows
• Local Bridge IPv6-IPv4 client for Windows XP
  QuickTime
• Java JMF JMStudio

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MPEG4IP for Linux IPv6 Client

• MPEG4IP opensource project
• RTSP/RTP streaming ISMA
• MPEG-4 player
• IPv6 enabled by 6net.org
• IPv6 Proxy support added
• Used for CTIE Mobile IPv6 demos

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MPEG4ip
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Windows XP and QuickTime SDK

• Two attempts
• Windows QuickTime SDK
• No IPv6 support for RTSP
• Local Bridge IPv6-IPv4 client for Windows XP
  QuickTime player

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QuickTime on XP
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Local Bridge IPv6-IPv4 client

• Windows XP with normal QuickTime Player
• Local Bridge is a proxy for QT player
• IPv6 traffic in/out from XP
• Some minor performance issues

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XP local bridge proxy
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Java JMF JMStudio

• Java Media Framework (JMF)
• JMStudio - Sample Application
• RTP/UDP code supported IPv6
• JMStudio user interface
• Written to accept IPv4 address only
• No changes required using DNS names

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JMStudio
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Java JMF JMStudio

• Requires preferences set correctly for IPv6
• Requires reverse lookup on global IPv6 addresses
  (host and server)
• Proxy support hard coded

http//www.ctie.monash.edu.au/DSS-IPv6/jmf-ipv6
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Demo!

• No Demonstration!
• Looks the same as IPv4 QuickTime Streaming
• Use identical URL to request
• rtsp//server.apple.com/sample.mov
• SUCCESS

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QA
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IPv6 RTSP
RTSP/1.0 200 OK Server DSS/4.0
v410-Linux Content-Type application/sdp Content
-Base rtsp//geryon.ctie.monash.edu.au/test64.mp4
Session Description Protocol Owner/Creator,
Session Id (o) StreamingServer 3271633399
1051830515000 IN IP6 3ffe800112fc4 Session
Name (s) /test64.mp4

• DESCRIBE rtsp//geryon.ctie.monash.edu.au/test64.m
  p4 RTSP/1.0
• Accept application/sdp

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IPv6 RTSP
RTSP/1.0 200 OK Server DSS/4.0
v410-Linux Transport RTP/AVPunicastclient_por
t1024-1025 source3ffe800112fc4server_port
6970-6971ssrc1659c123

• SETUP rtsp//geryon.ctie.monash.edu.au/test64.mp4
• /trackID2
• Transport RTP/AVPunicastclient_port1024-1025