CMediaType.SetVariableSize method

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The SetVariableSize method specifies that samples do not have a fixed size.

Syntax

void SetVariableSize();

Parameters

This method has no parameters.

Return value

This method does not return a value.

Remarks

This method sets the bFixedSizeSamples member to FALSE. Subsequent calls to the CMediaType::GetSampleSize method return zero.

Requirements

See also

CMediaType Class