Download High Definition over IP (HDoIP)

FP6-2005-IST-41
Integrated project proposal:
HDoIP
Integrated project proposal
IST Call 41
FP6-2005-IST-41
High Definition over IP (HDoIP)
Proposal summary
Date of preparation: 7/11/2005
Version number: 0.1
Project coordinator Sebastià Sallent
i2cat Foundation
Edifici Nexus II - c/ Jordi Girona, 29
08034 Barcelona - SPAIN
Phone:
e-mail: [email protected]
web site: www.i2cat.net
Project duration
24 months
Number of partners about 25 participants
Strategic objective addressed
Only one Strategic objective is open in this call (2.41.6 Networked Audio-visual Systems and Home
Platforms): “To advance Audio Visual systems and applications in converged broadcasting and IP
communications environments, including the home and extended home for nomadic users and
devices”.
1.3 Scientific and technological objectives
The objectives of this project are:
1) to develop common approaches to the HD-related issues presented by next generation
networks, thus allowing similar applications for HD over IP to interoperate with each other;
2) to program software for HD videoconferencing and streaming, addressing QoS issues;
3) to develop secure GRID systems for distributed HD;
4) to adapt the Session Information Protocol (SIP) to HD sessions;
5) to disseminate project results, providing open global standards with SMPTE, IETF, …
3 Relevance to the objectives of the IST priority
The project is placed in the context of addressing multi-technology integration and convergence of
broadcasting, telecommunications and consumer electronics. Furthermore, it promotes the
participation of organisations from extra-European countries, notably from Asian and LatinAmerican emerging technologies.
Abstract
1 Project outline
1.1 Introduction
Proposal Summary, page 1 of 5
FP6-2005-IST-41
Integrated project proposal:
HDoIP
The main aim of the present proposal is to develop an open platform, exploring the transmission of
high bit rate video streams over heterogeneous Internet Protocol (IP) networks. This High
Definition over IP (HDoIP) platform will include both the transport network and the access
infrastructure. Figure 1 shows the correspondent architecture.
HD
(new media open system)
GRIDs
(GRIDLab, EuroGRID,…)
OPTICAL/WIRELESS
(GEANT2/GLIF)
Figure 1: HD over IP Architecture
Protocol layering
For the transport of HD multimedia contents, we propose the use of the RTP/UDP/IP stack, as
shown in Figure 2.
HD application
GRID Coding
Security
RTP
UDP
IP
Subnet
Figure 2: Protocol stack for HDoIP applications
2 HDoIP scenarios based user requirements
(PUTTIN GRID in the middle to be coherent with the general architecture
2.1 HDTV (broadcast)
HD
Provider
GRID
Transcoding
2.2 HD cinema (point-to-point or point-to-multipoint)
Proposal Summary, page 2 of 5
Residential
users
FP6-2005-IST-41
Integrated project proposal:
HD
Provider
HDoIP
Industrial
user(s),
cinema(s)
2.3 HD videoconferencing (point-to-point or multicast)
Residential/
Industrial
user(s)
Residential/
Industrial
user(s)
2.4 Audiovisual consortium (point-to-point)
HD
provider
HD
provider
This last example constitutes a relevant innovation that can be provided by the HDoIP
infrastructure, as the interchange of HD contents can allow the constitution of consortiums of big,
medium and small size audiovisual companies. This can provide an alternative to other centralized
models leading the current audiovisual industry, such as Hollywood.
3. HD formats and applications
3.1. Traditional and new formats: Formats independent platform
A High Definition video content can be defined in terms of traditional formats 720 (progressive) or
1080 (interlaced) active scanning lines but also new formats, 1080p and SHD
The HDoIP project does not aim at creating new standards. For this reason, we refer to those
defined by the Pro-MPEG Forum. We briefly describe the related Codes Of Practice (COPs),
concerned with high quality video over IP.
1. COP 3: Transmission of Professional MPEG-2 Transport Stream over IP Networks. It can
be used not only for MPEG-2 video systems, but also for other video formats for which a
transcoding into an MPEG-2 transport stream is defined, including H.264/MPEG-4 Part 10.
2. COP 4: Transmission of High Bit Rate Studio Streams over IP Networks. It covers standarddefinition uncompressed video at 270 Mbps, in a way that will not prevent the carriage of
compressed formats that use the same framing structure (e.g., SDTI). It is also intended that
this document is applicable to systems running at 360 Mbps and HD rates up to 1.485 Gbps
(HD-SDI).
4.1.3 High quality video applications
The HDoIP project will have to provide for a variety of new video applications, including:
- symmetric vs. asymmetric video streaming;
- multicast vs. broadcast vs. point-to-point vs. point-to-multipoint content delivery;
- passive vs. interactive multimedia contents.
Proposal Summary, page 3 of 5
FP6-2005-IST-41
Integrated project proposal:
HDoIP
Furthermore, some requirements need particular attention when developing an HD application,
among which we cite:
- the output error rate;
- the latency performance.
In both cases, the precise values will depend on the specific application. For example, the error rate
for professional applications is usually more stringent than that for domestic or industrial
applications.
As far as latency issues are concerned, videoconferencing actually represents the most interesting
case, due to its serious timing constraints.
3. Network Services for HD.
Security
Another relevant questions to the HDoIP project will be the need for
- privacy and authentication of users;
- integrity of the transmitted HD contents.
In particular, the above concepts will be studied in a GRID environment.
Quality of Service (QoS)
In order to transmit an high video quality over a network, there is more than just providing the
sufficient bandwidth. The network has to give some other assurances, regarding
- the error rate;
- the latency;
- the variation in latency (jitter).
For these reasons, suitable QoS solutions will be developed in the framework of the present project.
Signalling
Last but not least, the project will address the session control issues by developing a SIP-based
platform for the HD-related signalling information.
4.Transport and Access Network
In order to support both symmetric and asymmetric HD applications, high bandwidth, symmetric
physical networks are required. The following is a survey of different, already existent link types
one might use to build a HD-compliant network.
1. Wired links: suitable solutions are
a. Fiber To The Neighbourhood (FTTN) technologies, such as SDSL+ and VHDSL;
b. Fiber To The Home (FTTH) schemes, such as EPON and GPON.
2. Wireless links: suitable solutions are the IEEE 802.11e (Wi-Fi) and 802.15x (Wi-Max)
standards for wireless LANs.
1.2 Expected impact
In the next years, High Definition will be a key goal for manufacturers, phone companies,
multimedia contents providers and users. Following are some reasons.
1. HDoIP is a general purpose layer, that is it can be applied not only to the traditional
entertainment industry (digital cinema, TV broadcasting, …), but also to new markets like
a. e-learning (distance learning, international academic collaborations, …);
b. e-health (medical imaging, medical videoconferencing…);
Proposal Summary, page 4 of 5
FP6-2005-IST-41
Integrated project proposal:
HDoIP
c. e-culture (e-music, e-arts, e-sports, e-games, e-architecture, cultural and tourism
projects, …).
2. The European carriers, fixed and mobile, can take advantage of sending highly interactive
HD contents over next generation networks.
3. The increasingly importance to the end users of the above mentioned innovative contents
can lead the way to the development of new families of end devices, supporting the HD
standards.
4. The HD potential market is huge, as it includes:
a. multimedia contents producers;
b. enterprise (industrial) users;
c. private (residential) users.
Proposal Summary, page 5 of 5