MFPKEY_ASFMediaSource_ApproxSeek property

Specifies whether the ASF media source uses approximate seeking.

Data typePROPVARIANT type (vt)PROPVARIANT member
VARIANT_BOOLVT_BOOLboolVal

Remarks

Applications can use this property to configure the ASF media source. To set the property, pass an IPropertyStore pointer to the source resolver. For more information, see Configuring a Media Source.

The ASF media source handles seeking as follows:

  • If the value of this property is VARIANT_TRUE, the media source uses approximate seeking, which is less accurate but faster than exact seeking.
  • If the value is VARIANT_FALSE and the ASF file has an index, the media source uses exact seeking.
  • If the ASF file does not contain an index, the media source uses approxmate seeking unless the MFPKEY_ASFMediaSource_IterativeSeekIfNoIndex property is set to VARIANT_TRUE.
  • If the ASF file does not contain an index and the MFPKEY_ASFMediaSource_IterativeSeekIfNoIndex property is VARIANT_TRUE, the media source uses iterative seeking. Iterative seeking is more accurate but slower than approximate seeking (but generally less accurate than exact seeking).
    Note  Requires Windows 7.
     

The default value of this property is VARIANT_FALSE.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Mfidl.h

See also

Media Foundation Properties

 

 

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