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Privacy policy. An encoder converts uncompressed audio or video into compressed packets in the format specified by the application. An encoder is identified by the GUID that represents the category: audio or video. Download Microsoft Edge More info. Contents Exit focus mode. Media Extension Manager.
Please rate your experience Yes No. Any additional feedback? The preceding HTML creates a page with two buttons for starting and stopping the broadcast. There is a text field for entering a URL and a corresponding button that allows you to navigate from the client's browser to the specified URL.
These XML-based files detail the streams associated with the metafile and reference information about the stream such as the title, author, and copyright. You must use metafiles in order to use special commands, give useful information about your stream, and create playlist entries. In this example, I specify some information about my broadcast stream:.
This code defines the broadcast stream. When you set up the Encoder configuration file, you give your stream a name. When you send a command with the stream, this command will deliver to this event handler. In my script, I simply create an alert box that displays the two parameters passed to the handler.
You can use this functionality to create other actions that will occur when the broadcaster sends a special command, such as filling out form data on an associated form. In my previous example, I gave the broadcaster the ability to send a URL command to the client. This can come in handy if you have a Web presentation, and you want to progress through a series of exported slides. You'd include this Web page in one frame and put the "slides" in the adjoining frame.
Windows Media 9 Services makes it extremely easy to create custom multimedia streams and broadcasts with little effort. Another benefit is the cost—the Encoder is a free download , and Windows Media 9 Services the server component is included as an option in Windows Server.
Keep your developer skills sharp by automatically signing up for TechRepublic's free Web Development Zone newsletter, delivered each Tuesday. New for this release is the Windows Media Video 9 Advanced Profile codec, which provides optimizations for broadcast video.
Support for writing ASF files. Files are created based on customizable profiles, enabling easy configuration and standardization of files. This SDK can be used to write files in excess of 2 gigabytes, enabling longer, better-quality, continuous files. Support for reading ASF files. Support is also provided for many advanced reading features, such as native support for multiple bit rate MBR files, which contain multiple streams with the same content encoded at different bit rates.
The reader automatically selects which MBR stream to use, depending upon available bandwidth at the time of playback. Support for delivering ASF streams over a network. Support for editing metadata in ASF files.
Information about a file and its content is easily manipulated with this SDK. Developers can use the robust system of metadata attributes included in the SDK, or create custom attributes to suit their needs.
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