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MFPKEY_COMPLEXITYEX Property

Specifies the encoder algorithm complexity.

Constant for IPropertyBag

g_wszWMVCComplexityEx

Data Type

VT_I4

Default Value

The default value depends on the version of the video encoder, as shown in the following table.

Encoder versionDefault value
Windows Media Video 9 encoder3
Windows Media Video 7/8 encoder1

 

Possible Values

The possible values depend on the version of the video encoder, as shown in the following table.

Encoder versionPossible values
Windows Media Video 9 encoder0, 1, 2, 3, 4, 5
Windows Media Video 7/8 encoder0, 1

 

Remarks

Lower values cause the codec to use less complicated encoding algorithms. Although the simpler algorithms produce lower-quality output, the encoding process is faster and requires less processing power. This can be important when encoding content from a live source because the encoder must process inputs fast enough to keep up with the source.

Any value assigned to this property will be ignored if the MFPKEY_COMPRESSIONOPTIMIZATIONTYPE property is set to 1. In that case, MFPKEY_COMPLEXITYEX is automatically set to 3.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Wmcodecdsp.h

See also

Media Foundation Properties

 

 

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