description	ms.assetid	title	ms.topic	ms.date
Contains the IMFMediaType which describes the image format type contained in the MFSampleExtension\_PhotoThumbnail attribute.	BA727189-385D-4BA1-9F17-AC6ECDD20ABF	MFSampleExtension_PhotoThumbnailMediaType attribute (Mfapi.h)	reference	05/31/2018

MFSampleExtension_PhotoThumbnailMediaType attribute

Contains the IMFMediaType which describes the image format type contained in the MFSampleExtension_PhotoThumbnail attribute.

Data type

IUnknown stored as IMFMediaType

If the MFSampleExtension_PhotoThumbnail attribute is present on the photo sample, the MFSampleExtension_PhotoThumbnailMediaType is required and must contain, at a minimum, MF_MT_MAJOR_TYPE, MF_MT_SUBTYPE and MF_MT_FRAME_SIZE which describe the thumbnail.

Requirement	Value
Minimum supported client	Windows 8.1 [desktop apps \| UWP apps]
Minimum supported server	Windows Server 2012 R2 [desktop apps \| UWP apps]
Header	Mfapi.h