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WMT_VERSION enumeration (wmsdkidl.h)

  • Статья

[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 It has been superseded by Source Reader and Sink Writer.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.]

The WMT_VERSION enumeration type defines the versions of the Windows Media Format SDK. Every profile you create will have an associated version identified by one of these enumerations. The version associated with a profile dictates the types of data allowed. For example, data unit extensions were introduced with version 8. A profile defined as version 7 cannot include data unit extensions. Under most circumstances, you will create profiles for the most current version.

Syntax

typedef enum WMT_VERSION {
  WMT_VER_4_0 = 0x40000,
  WMT_VER_7_0 = 0x70000,
  WMT_VER_8_0 = 0x80000,
  WMT_VER_9_0 = 0x90000
} ;

Constants

 
WMT_VER_4_0
Value: 0x40000
Compatible with version 4 of the Windows Media Format SDK.
WMT_VER_7_0
Value: 0x70000
Compatible with the Windows Media Format 7 SDK.
WMT_VER_8_0
Value: 0x80000
Compatible with the Windows Media Format 8.2 SDK.
WMT_VER_9_0
Value: 0x90000
Compatible with the Windows Media Format 9 Series SDK, and with the Windows Media Format 9.5 SDK.

Remarks

The version assigned to a profile does not directly relate to the codecs used in the profile's individual streams. However, it is recommended that you use codecs of the same version as the profile. Unless you have specific requirements to the contrary, you should always use the latest version.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only],Windows Media Format 7 SDK, or later versions of the SDK
Minimum supported server Windows 2000 Server [desktop apps only]
Header wmsdkidl.h (include Wmsdk.h)

See also

Enumeration Types