mf-sa-required-sample-count-attribute.md

description	ms.assetid	title	ms.topic	ms.date
Indicates the number of uncompressed buffers that the enhanced video renderer (EVR) media sink requires for deinterlacing.	b62bff64-153f-4028-a546-250419dc4152	MF_SA_REQUIRED_SAMPLE_COUNT attribute (Mftransform.h)	reference	05/31/2018

MF_SA_REQUIRED_SAMPLE_COUNT attribute

Indicates the number of uncompressed buffers that the enhanced video renderer (EVR) media sink requires for deinterlacing.

Data type

UINT32

Remarks

This is a stream-level attribute. To get the attribute from the EVR, do the following:

1. Call IMFMediaSink::GetStreamSinkByIndex to get the stream sink.
2. Query the stream sink for the IMFAttributes interface.
3. Call IMFAttributes::GetUINT32.

Internally, the mixer provides this attribute to the EVR. To get the attribute from the mixer, call IMFTransform::GetInputStreamAttributes.

The GUID constant for this attribute is exported from mfuuid.lib.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps | UWP apps]
Minimum supported server	Windows Server 2008 [desktop apps | UWP apps]
Header	Mftransform.h

See also

Alphabetical List of Media Foundation Attributes

IMFAttributes::GetUINT32

IMFAttributes::SetUINT32

Media Foundation Attributes