Transcript Introducing Hardware and Software Required for Video Conference

Introducing Hardware and Software Required
for Video Conference Using DV Camera
TABARU Masayuki (Kyushu University, Japan)
1
Contents





About Digital Video (DV) format
Introducing software (DVTS , DVcommXP)
Introducing Comet DVIP
Comparison
Demonstration
2
About DV format(1/2)


DV (Digital Video) format is high-resolution and highquality format.
Using IEEE1394 interface and cable can transport
high-resolution and high-quality video stream.
High quality video stream
But IEEE1394 cable can’t use over than 4.5 meters.
3
About DV format(2/2)
Using the software can be sent anywhere using the Internet
The DV data sent over the Internet using RTP payload
(RFC3189) .
IP
(20)
UDP
(8)
RTP
DV(80byte) DV(80byte) ・・・
DV/RTP packet format
4
Software Introducing (DVTS,1/11)
・DVTS(Digital Video Transport System)
©WIDE project(*1)
(*1) WIDE Project
Internet study project inaugurated in 1988 in Japan and led by Professor
Jun Murai Environmental Information, Keio University.http://www.wide.ad.jp/
・Currently DVTS works Free BSD, Linux, MacOSX and
Windows.
・This presentation talks about Windows version DVTS.
5
Software Introducing (DVTS,2/11)
System requirement
Equipment:
DV camera, PC equipped IEEE1394 interface,
IEEE1394 cable.
In the highest quality of communication, the system
consumes over 35Mbps as network bandwidth.
6
Software Introducing (DVTS,3/11)
DVTS is free software.
Access http://www.sfc.wide.ad.jp/DVTS and get the DVTS.
And install DVTS in your PC, after that created the icon.
Click this icon to start DVTS!
7
Software Introducing (DVTS,4/11)
Click this icon, the window is up.
From now, give a description of each menu and each function.
8
Software Introducing (DVTS,5/11)
Send DV stream
When you select Start sending menu,
setting window is up.
Input destination IP address.
If peer use different from default UDP
port, you input suited port number.
If your PC or peer’s PC can’t process
full frame, you set this value to adopt.
This value decides to discard level.
After set up, click OK bottom to start sending.
9
Software Introducing (DVTS,6/11)
Check the Preview, you can see the your sending stream
in your display.
10
Software Introducing (DVTS,7/11)
Receive DV stream
This buttons control receiving stream.
Because of instability of treatment of control
receiving, you may fail to receiving.
Then you check your network state that
whether receiving packets or not. If packets
are coming, you will try again and again.
After that you maybe get stream.
11
Software Introducing (DVTS,8/11)
You can use multicast for receiving.
Input multicast group address and start receiving
If you want to use different from default UDP
port, setting this value.
12
Software Introducing (DVTS,9/11)
You can set decode quality to adopt
your PC’s performance and network
state.
If the PC performance is less, you can’t get high quality view smoothly.
13
Software Introducing (DVTS,10/11)
This option is setting view
window size on your display.
14
Software Introducing (DVTS,11/11)
If you concern packet loss rate, click this.
15
Software Introducing (DVcommXP,1/7)
DVCommXP ©Fatware,Inc.
DVCommXP is commercial software by Fatware, Inc.
To access http://www.fatware.jp and download trial version
or get software license.
But now, this site supported language is Japanese only.
DVCommXP requires same equipment about DVTS but it
works WindowsXP only.
16
Software Introducing (DVcommXP,2/7)

System requirement of DVcommXP
OS : Windows(r)XP Professional or
Windows(r)XP Home Edition
CPU and Memory :
One-way(DV input or output only):
CPU PentiumⅢ 500MHz or more.
Memory:128MB or more.
Two-way(DV input and display a PC monitor)
CPU PentiumⅢ 1.8GHz or more.
Memory:256MB or more.
Bandwidth : 30Mbps or more.
17
Software Introducing (DVcommXP,3/7)
This is the DVcommXP window.
File(F) Sending(S) Receiving(R) View(V) Help(H)
18
Software Introducing (DVcommXP,4/7)
Send DV stream
Input destination address.
Select IP version.
Select UDP port.
DVcommXP has DVTS compatibility. If peer uses DVTS, select DVTS.
19
Software Introducing (DVcommXP,5/7)
Receive DV stream
Select IP version.
Select UDP port.
Display setting.
DVcommXP can output DV stream by IEEE1394.
20
Software Introducing (DVcommXP,6/7)
Multicast receiving
Input Multicast address.
Select network interface.
21
Software Introducing (DVcommXP,7/7)
Setting display size.
This is packet loss rate window.
DVcommXP can see peer’s packet loss rate using RTCP.
22
Introducing Comet DVIP(1/10)
Comet DVIP
©Comet Project
Comet (Communication Enterprising Technology) Project at Fujitsu Lab.
http://www.pds-flab.rwcp.or.jp/index.html
Comet DVIP realizes digital video transmission at the real
time on the Internet used intelligent NIC.
Intelligent NIC can process sending and receiving DV
stream in hardware process.
23
Introducing Comet DVIP(2/10)
This is the intelligence NIC
This is the Comet DVIP hardware.
24
Introducing Comet DVIP(3/10)
IEEE1394 ×2
100Base-TX
This interface is not controlled
by OS.
Comet DVIP’s NIC has two IEEE1394 interfaces.
One connects DV camera and another one outputs DV stream.
It can select automatically input and output interfaces.
25
Introducing Comet DVIP(4/10)




Comet DVIP has different property from
before introduced two softwares.
Because of intelligence NIC, Comet DVIP
doesn’t require high-spec CPU and OS.
It can send and receive one PC equipped
intelligence NIC.
The system has dedicated hardware and
software.
26
Introducing Comet DVIP(5/10)
This is Comet DVIP software icon.
Click this icon.
It asks you to be going to load firmware,
it takes some time (Y/N).
Click “Yes”.
Some time later, Comet DVIP control
window is up.
27
Introducing Comet DVIP(6/10)
This is Comet DVIP control window.
Configurations.
Control NIC.
Comet DVIP control software works Linux, FreeBSD and Windows Me/2000/XP.
28
Introducing Comet DVIP(7/10)
Select IP version and
transmission mode.
Input destination IP address (target) and your IP address (self).
Because of Comet DVIP network is not controlled by Windows, you need to
input your IP address and Gateway.
29
Introducing Comet DVIP(8/10)
①
③
②
③
You need to click Initialize bottom and 1394 reset bottom to start sending or
receiving DV stream.
After that, click send bottom or receive bottom.
30
Introducing Comet DVIP(9/10)


Comet DVIP output is DV format, you prepare
the display equipped DV interface or connect
to IEEE1394 “windows” interface.
Most of the monitor has NTSC interface only,
then you need to setting DV to NTSC
converter.
31
Introducing Comet DVIP(10/10)
You connect Comet DVIP’s IEEE1394 interface and “windows”
IEEE1394 interface to see the received DV stream in your display.
After connected, you can see the stream on your display using DV
capture tool.
32
Comparison(1/2)
Comparison of functions.
DVTS
DVcommXP
Comet DVIP
Software licenses.
freeware
commercial
commercial
It display on a full-screen at the time of
reception. (Without Windows frame.)
×
○
×
It is an IEEE1394 output at the time of
reception
×
○
○
Transmitting preview.
○
○
×
ICMP automatic transmission.
×
○
-
RTCP function.
×
○
-
Multicasting transmission and reception.
△(only
TTL=1)
○
○
The function always display to the front
×
○
×
33
Comparison(2/2)
Comparison of functions.
DVTS
DVcommXP
Comet DVIP
The function which fixes the in-everydirection ratio of a window.
×
○
×
Memory of a setup.
×
○
○
Two or more IEEE1394 apparatus
selections.
×
○
Auto
The packet loss display of the other party
by RTCP
×
○
×
Selection of reception network interface.
×
○
Auto
Change of packet size.
×
○
○
34
35
36
DVTS
demonstration machine
send
CPU:AMD AthlonXP 1.2GHZ Memory:256MB
receive
CPU:Pentium3 Mobile CPU 750MHz Memory:256MB
Sending machine can two-way connection. I’ve test before.
DVcommXP
To sale for it outside of Japan needs to reserch violations of intellectual property
rights. Fatware, Inc. sales DVcommXP in Japan only because of they don't
research that things.
If any agency which wants to sale DVcommXP outside of Japan is coming up.
And it researches violations of intellectual property rights and the problem will
become clear. They will discussion about to sale overseas.
37