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IAMVideoCompression::put_Quality

  • Article
 
Microsoft DirectShow 9.0

IAMVideoCompression::put_Quality

The put_Quality method sets the compression quality.

Syntax

  HRESULT put_Quality(
  double Quality
);

Parameters

Quality

[in] Specifies the quality as a value between 0.0 and 1.0, where 1.0 indicates the best quality and 0.0 indicates the worst quality. If the value is negative, the filter will use the default quality.

Return Values

Returns an HRESULT value.

Remarks

To determine if the filter supports this method, call the IAMVideoCompression::GetInfo method and check for the CompressionCaps_CanQuality flag in the pCapabilities parameter. The GetInfo method also returns the default quality.

Requirements

Header: Declared in Strmif.h; include Dshow.h.

Library: Use Strmiids.lib.

See Also