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Configuring Web Streams

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[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Web streams are a specialized type of file transfer stream used to deliver the files associated with a Web site in a single stream. Web stream configuration is summarized in the following table.

Setting Description
WM_MEDIA_TYPE.majortype Set to WMMEDIATYPE_FileTransfer.
WM_MEDIA_TYPE.subtype Set to WMMEDIASUBTYPE_WebStream.
WM_MEDIA_TYPE.bFixedSizeSamples Set to False.
WM_MEDIA_TYPE.bTemporalCompression Set to True.
WM_MEDIA_TYPE.lSampleSize Set to 0.
WM_MEDIA_TYPE.formattype Set to WMFORMAT_WebStream.
WM_MEDIA_TYPE.pUnk Set to NULL.
WM_MEDIA_TYPE.cbFormat Set to sizeof(WMT_WEBSTREAM_FORMAT).
WM_MEDIA_TYPE.pbFormat Set to the address of a properly configured WMT_WEBSTREAM_FORMAT structure.
WMT_WEBSTREAM_FORMAT.cbSampleHeaderFixedData Set to sizeof(WMT_WEBSTREAM_SAMPLE_HEADER).
WMT_WEBSTREAM_FORMAT.wVersion Set to 1.
WMT_WEBSTREAM_FORMAT.wreserved Set to 0.

 

Configuration Common to All Streams

Configuring Arbitrary Stream Types

Web Streams