• Figure 2.17
  • W3C Recommendation: Synchronized Multimedia Integration




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    Ceponkus, Hoodbhoy - Applied XML - Toolkit for Programmers

    W3C Recommendation: Synchronized Multimedia Integration 
    Language
    Synchronized Multimedia Integration Language (SMIL, pronounced “smile”) was 
    designed to enable the simple authoring of TV-like multimedia presentations such as 
    training courses on the Web.
    SMIL is another application of XML and, as such, has its own vocabulary of tags. SMIL 
    presentations are extremely flexible and can consist of virtually any media, including 
    streaming audio, streaming video, and static images, of virtually all formats. The idea is to 
    enable Webcasts of media in a very informative and unique manner. This is the stuff that 
    pundits dreamed about decades ago.
    The syntax is very easy to use and places a lot of emphasis on the positioning of different 
    media objects and then setting the order in which they are triggered or played. SMIL is 
    intended for users of high-bandwidth systems and won’t be completely usable to all Web 
    users for some time.
    Provided SMIL takes root in the industry, it could revolutionize the educational and 
    entertainment processes across the Web. Students could listen to or watch a professor 
    give a lecture and get a simultaneous list of annotations to follow to get more information. 
    Imagine hearing a term you don’t know the meaning of and seeing its meaning pop up in 
    front of you as the speaker says the term. Or imagine if the speaker makes a reference to 
    some process you are unfamiliar with and a list of links that you can follow comes up 
    during that portion of the speech.
    Figure 2.17 shows a hypothetical SMIL page with various components that can be 
    constructed given today’s level of technology.


    - 45 -
    Figure 2.17:
    A hypothetical SMIL page.
    Similarly, imagine a SMIL page from an entertainment perspective. Imagine watching a 
    football game and being able to get statistics of a player by clicking on that player with a 
    picture-in-picture type of view. Imagine further that while watching the game, you can 
    video conference with your friend on the same screen and exchange expert comments 
    on how the game’s going.
    These aren’t bleary-eyed fantasies anymore: They’re real live applications that can be 
    enabled through a standards-based language, SMIL.
    SMIL’s backing has teeth (pun intended). The members of the W3C working group who 
    worked on the SMIL recommendation include members from RealNetworks (as in 
    RealPlayer), Apple (as in QuickTime), Netscape, Philips, and other top-of-the-line 
    multimedia players. The recommendation was passed in June 1998, and since then 
    several SMIL players have been released, including RealNetwork’s G2 player.
    As cool as this technology is, it is slightly ahead of the market. Let’s face it, only a select 
    few of us have T1 or higher access to the Net (blessed be our universities for they are our 
    providers of high bandwidth). We think it will go through several revisions before 
    mainstream users are able to reap benefits from it.

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    W3C Recommendation: Synchronized Multimedia Integration

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