Windows Media Technologies OS Design Development (Windows Embedded CE 6.0)

1/6/2010

Microsoft® Windows Media® technologies for Windows Embedded CE allows you to provide multimedia streaming capabilities to Windows Embedded CE-based devices.

This includes support for the various protocols and streaming formats required for audio and video playback of either local files or streamed data over a network connection.

This Catalog item provides the basic infrastructure to support Microsoft Windows Media® codecs and player controls; it does not implement codecs. By itself, this Catalog item cannot decode compressed audio or video.

You must include additional Catalog items in your OS design such as Windows Media Audio and Windows Media Video to render audio and video.

For information about Windows Media playback, see the Windows Media Player Control OS Design Development.

OS Design Information

The following table shows operating system design information for Windows Media technologies.

Concept	Description
Dependencies	None
Hardware considerations	None

Modules and Components

The following table shows the modules and components that implement Windows Media technologies.

Item	Module	Component
Audio compression manager	dxmasf	acmobj
Video compression manager	dxmasf	icmobj
URL dispatcher	dxmasf	urlobj
URL grabber	dxmasf	urlgrab
Support for streaming over HTTP	None	httpstrm
Support for streaming over MMS	None	msstrm
Support of streaming from a local file	None	filestrm
Broadcast and Multi Bit-Rate (MBR) streaming	None	msbstrm
Support for .nsc files	None	nscfileparser
Support for .m3u and .asx v1 files	None	m3uplayl
Support for .asx v2 files	None	asxplayl
Support for .asx v3 files	None	xmlplayl
Resource for error strings	None	errormsgs

Implementation Considerations

The following table shows the relevant Sysgen variables.

Sysgen variable	Description
SYSGEN_DSHOW_WMT	Windows Media technologies
SYSGEN_DSHOW_WMT_ASXV1	ASX v1 and M3U file support
SYSGEN_DSHOW_WMT_ASXV2	ASX v2 file support
SYSGEN_DSHOW_WMT_ASXV3	ASX v3 file support
SYSGEN_DSHOW_WMT_MULTI	Windows Media multicast and multibit rate
SYSGEN_DSHOW_WMT_NSC	NSC file support
SYSGEN_DSHOW_WMT_LOCAL	Windows Media streaming from local storage
SYSGEN_DSHOW_WMT_HTTP	Windows Media streaming over HTTP
SYSGEN_DSHOW_WMT_MMS	Windows Media streaming over Microsoft Media Server (MMS)

Application Development Topics

Windows Media Technologies Application Development

Windows Media Technologies Security

Windows Media Technologies Registry Settings

See Also

Other Resources

Windows Media Technologies
Windows Media Player OCX Control 6.4