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KS_COMPRESSION structure (ks.h)

  • Article

The KS_COMPRESSION structure defines the compression of frames on an output pin.

Syntax

typedef struct {
  ULONG RatioNumerator;
  ULONG RatioDenominator;
  ULONG RatioConstantMargin;
} KS_COMPRESSION, *PKS_COMPRESSION;

Members

RatioNumerator

Specifies the numerator of the compression/expansion ratio.

RatioDenominator

Specifies the denominator of the compression/expansion ratio.

RatioConstantMargin

Specifies a scalar constant to apply to the compression ratio. Set this to zero for no compression.

Remarks

For compression, specify a fraction less than 1. For decompression, specify a fraction greater than 1. For example, a compressor might specify 1:3. A decompressor could specify 3:1.

Requirements

Requirement Value
Header ks.h (include Ks.h)