Microsoft DirectX 9.0


The SetMediaType method sets the uncompressed media type for the group.


HRESULT SetMediaType(
    AM_MEDIA_TYPE *pmt



[in] Pointer to an AM_MEDIA_TYPE structure describing the format.

Return Value

Returns one of the following HRESULT values:

Return code Description
S_OK Success.
E_POINTER NULL pointer argument.
VFW_E_INVALIDMEDIATYPE The specified media type is invalid.


Currently, the following media types are supported:

Video types must use FORMAT_VideoInfo for the format type and VIDEOINFOHEADER for the format block. The VIDEOINFOHEADER2 format is not supported. Also, top-down video formats (biHeight < 0) are not supported.

To specify a compression format for the group, call the IAMTimelineGroup::SetSmartRecompressFormat method.


Header: Include Qedit.h. This header file is not compatible with Microsoft® Direct3D® headers later than version 7.

Library: Use strmiids.lib.

See Also