How do I use HTTP streaming for RealAudio and RealVideo?

The HTTP protocol enables audio and video content providers to stream RealAudio and RealVideo from a World Wide Web server. While this method is not as robust or efficient as using a RealAudio/Video Server, it provides a reasonable method for delivering RealAudio/Video content.

Before you can stream RealAudio and RealVideo clips through HTTP, you need to define the following MIME types for your World Wide Web server:

Some World Wide Web servers are pre-configured with these MIME types.

Note If you are running a web page on an ISP server, send mail to the ISP administrator, asking them to set up the RealAudio (RealMedia) MIME type.

To stream RealMedia content using HTTP:

  1. Copy your encoded RealAudio or RealVideo files (files with the .ra or .rm extensions) to your World Wide Web server.

  2. Use a text editor (such as Notepad) to create a metafile containing a RealAudio URL. For example, the contents of your file should be in the following form:

    where hostname is the name of your World Wide Web server. For example:

    Note: RAM files for HTTP streaming are identical to regular RAM files with the exception that it uses http as the protocol instead of pnm.

  3. Save your metafile as text using a .ram filename extension.

  4. In your HTML document, reference the metafile in a hyperlink. For example:
    <A HREF="filename.ram">
    <A HREF="http://hostname/file.ram">

    You can use relative or complete paths. If you use complete paths, you must include both the hostname and the complete path. For example:

    <A HREF="">

  5. When a user clicks on the link, the audio/video file(s) begin to download. The RealAudio Player or RealPlayer begins playing after a few seconds; it does not need to wait for the entire file to be downloaded.
Application: RealAudio Player 3.0, RealPlayer 4.0, RealPlayer 5.0,PN Support