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cmediatype-setsamplesize.md

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description ms.assetid title ms.topic ms.date topic_type api_name api_type api_location ms.custom
The SetSampleSize method specifies a fixed sample size, or specifies that samples have a variable size.
b0f9dd7b-4ff9-4d11-9c13-b52d7b1549b5
CMediaType.SetSampleSize method (Mtype.h)
reference
4/26/2023
APIRef
kbSyntax
CMediaType.SetSampleSize
COM
Strmbase.lib
Strmbase.dll
Strmbasd.lib
Strmbasd.dll
UpdateFrequency5

CMediaType.SetSampleSize 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetSampleSize method specifies a fixed sample size, or specifies that samples have a variable size.

Syntax

void SetSampleSize(
   ULONG sz
);

Parameters

sz

Sample size, in bytes, or zero.

Return value

This method does not return a value.

Remarks

If value of sz is zero, the media type uses variable sample sizes. Otherwise, the sample size is fixed at sz bytes.

Requirements

Requirement Value
Header
Mtype.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CMediaType Class