Salyens Smeet SDK_ H

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					            Salyens         Smeet SDK             ™
    H.323 & SIP video conferenc ing

The H.323 and SIP standards (defined and     The Salyens Smeet SDK™ is a highly
approved by the ITU and IETF                 competitive solution for video
respectively) are the most widely deployed   conferencing, based on overall
signalling protocols in VoIP, multimedia     development cost and speed of
communications, and video conferencing.      implementation.
Some of the biggest benefits of the Salyens
Smeet SDK™ is its emphasis on ease of         Salyens Smeet SDK             ?
use, portability, protocol independence, and
proven interoperability with equipment        Highlights
from major vendors.
                                              • H.323 version 4 and SIP compliant
Vendors and developers that plan to
develop multi-platform and multi-protocol • simple, yet flexible API in C++ and STL
applications for video conferencing will      • multi-platform (Windows, Linux,
appreciate the Salyens Smeet SDK ™ use          and Mac)
of an API in standard C++ and STL, as
                                              • multi-protocol (SIP, H.323)
well as the natural separation of the video
conferencing functionality from the           • leading edge audio codecs (AMR, GSM,
business logic and user interface specific to   Speex, iLBC, G.726, G.711)
each applicat ion.
                                              • leading edge video codecs (MPEG-4,
By adopting this “building block” approach      3GPP, H.263+, H.263, H.261)
that so well characterizes the Salyens
Smeet SDK™, service providers will be         • RTP/RTCP stack dynamically adapts to
able to cut down on software development        network conditions
costs and reuse more software from            • proven interoperability with equipment
application to application.                     from major vendors (Polycom,
The Salyens Smeet SDK ™ is designed for         RADVision, Tandberg, D- Link)
ITU H.323 version 4 and IETF SIP                and 3G video mobile phones
protocol capable video conferencing           • echo and noise suppression
applications. The number of simultaneous
calls in a multi-conference is only limited   • auto-configuration and changes applied
by the user interface.                          “on-the- fly”
                                              • IPv6 ready
                                             • MMX, SSE2 optimizations
                                             • internationalization (English, French,
                                               Japanese, etc)
                                             • small footprint (1.0 MB for SmeetX)
F eatures                                             Configuration
                                                      The user may manipulate settings either natively
Platform Independence                                 (e.g. in the registry of Windows) or in XML files.
A major concern for software vendors or               Changes in configuration (e.g. device, volume)
developers is code portability or platform            take effect immediately if carried out through one
independence. The Smeet SDK™ is multi-                of the “core” interfaces.
platform, with sample applications for Windows
and Linux. Optional GUI profiles include:             Internationalization
•   MFC (W indows)                                    The Salyens Smeet SDK™ supports 1-byte and
•   ATL (Windows)                                     wide chars.
•   GTK2 (Linux)                                      By means of “property” files, the Smeet SDK ™
•   wxWidgets (Windows, Linux and Mac)                and accompanying sample applications can
•   SDL (Windows, Linux, Mac, BSD, etc)               present textual information (e.g. menus, error
                                                      messages) in various language s and updated
Supported Protocols                                   immediately. C urrent languages include English,
The Salyens Smeet SDK ™ is protocol agnostic,         French and Japanese.
with support for SIP and H.323 by default.
Multi-conferencing                                    The Smeet SDK automatically adjusts the bit rate
The API is designed such that only the user           of media streams in order to constantly utilize all
interface and hardware may limit the number of        the available bandwid th.
simultaneous calls.                                   It also monitors and adapts to network conditions
                                                      while in a call.
Call setup can be secured through standard
protocols (e.g. H.235).                               Advanced audio codecs (e.g. AMR, GSM, Speex)
Special input and output devices (e.g. “Null”         provide near toll-quality voice, compressed down
audio and “Paused ” video) guarantee than no          to as little as 5kbps.
useful media information is transmitted and/or        Echo and noise suppression allow for a more
received when privacy is required.                    natural video conferencing experience with
                                                      loudspeakers instead of headphones.
The Smeet SDK™ comprises over 80 functions
organized around 6 simple, “core ” interfaces (e.g.   Leading edge video codecs such as MPEG-4 can
Init, Call and Error).                                sustain big picture sizes (e.g. VGA or bigger) and
The default callbacks will suffice in most cases,     high frame rates, yet ensure a relatively low bit
and thus less than 10 functions are needed for a      rate.
complete video conferencing call.                     The Smeet SDK ™ offers advanced video post-
                                                      processing controls, such as flip (horizontal &
                                                      vertical), brightness, contrast, hue and gamma.

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Tags: H.323
Description: Can not guarantee QoS for packet-switched multimedia conferencing network launched by the ITU Study Group 15 SG-16 in 1996 proposed the first version of the H.323 and H.323 in 1998 by a second version. H.323 developed a non-QoS (Quality of Service) guarantees packet network PBN (packet Based Networks) multimedia communications systems standard on these packet networks dominate today's desktop, network systems, including those based on TCP / IP, IPX packet switching to Ethernet, fast Ethernet, token Ring, FDDI technology. Therefore, H.323 standard LAN, WAN, Internet, multimedia communications applications on the Internet provide the technical foundation and protection.