Internet Streaming Media Alliance

Internet Streaming Media Alliance

The Internet Streaming Media Alliance (ISMA) was Founded in December 2000, by Apple Computer, Cisco Systems, IBM, Kasenna, Philips, and Sun Microsystems. It is a non-profit corporation whose mission is to accelerate the market adoption of open standards for streaming and progressive download of rich media over all types of Internet Protocols (IP). The ISMA is a diverse alliance with representatives from all points of the streaming work-flow.

While standards already exist for audio and video codecs (e.g. MPEG) and for real time streaming transport over IP networks (e.g. RTP) putting these together requires selecting profiles, describing payload formats, and resolving various options. ISMA specifications typically adopt existing specifications in order to form a complete solution. However, when specifications don't exist, the ISMA will create them. The ISMA also performs interoperability testing, allowing its members to ensure that their products conform to ISMA standards and interoperate.

The ISMA has released several specifications for the transport of rich media over IP:

* ISMA 1.0 - details how to stream MPEG-4 Part 2 video (Simple Profile and Advanced Simple Profile) over IP networks.
* ISMA 2.0 - details how to stream H.264/MPEG-4 AVC video and HE AAC audio over IP networks.
* ISMACryp - specifies an end-to-end encryption system for ISMA 1.0 and 2.0 streams.
* ISMA Closed Captioning - specifies how to carry closed caption (line 21) data as a third stream over IP network.

Current work in the ISMA focuses on enabling advanced IPTV systems and creating specifications for transport and presentation of rich media in enterprises.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Internet radio device — The Kerbango Internet Radio was the first stand alone product that let users listen to Internet radio without a computer. An Internet radio device, also called network music player is a hardware device that is capable of receiving and playing… …   Wikipedia

  • Media server — A media server refers either to a dedicated computer appliance or to a specialized application software, ranging from an enterprise class machine providing video on demand, to, more commonly, a small personal computer or NAS (Network Attached… …   Wikipedia

  • Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …   Universalium

  • Digital media receiver — Media extender redirects here. For the extenders that connect to Windows Media Centers, see Windows Media Center Extender The Roku XD/S receiver works with popular streaming media sites like Amazon.com and Netflix as well as locally stored… …   Wikipedia

  • Internet Archive — Not to be confused with the arXiv. For help citing the Internet Archive in English Wikipedia, see Wikipedia:Using the Wayback Machine. Coordinates: 37°46′56.3″N 122°28′17.65″W /  …   Wikipedia

  • Internet evangelist — An Internet evangelist is a person who uses the Internet to present a religious viewpoint such as Christianity to the world.Today, there are many ministers, churches and organizations around the world who have Internet ministries and who practice …   Wikipedia

  • PJ Media — Type Private Industry Media Founder(s) Roger L. Simon Products PJTV …   Wikipedia

  • Chicago Public Media — is a not for profit media company that operates as the primary National Public Radio member organization for Chicago. It owns 3 non commercial educational FM broadcast stations and 1 FM translator, and produces the programs Wait Wait... Don t… …   Wikipedia

  • Digital Living Network Alliance — Founded June 2003 (2003 06)[1] Headquarters 4000 Kruse Way Place, Bldg 2, Ste 250 La …   Wikipedia

  • Advanced Video Coding — H.264 Pour les articles homonymes, voir AVC. H.264, ou MPEG 4 AVC (Advanced Video Coding), est une norme de codage vidéo développée conjointement par l UIT T Q.6/SG16 Video Coding Experts Group (VCEG) ainsi que l ISO/CEI Moving Picture Experts… …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”