IResize::put_MediaType 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]
Note
[Deprecated. This API may be removed from future releases of Windows.]
The put_MediaType method sets the output media type on the resizer filter.
Syntax
HRESULT put_MediaType(
[in] const AM_MEDIA_TYPE *pmt
);
Parameters
-
pmt [in]
-
Pointer to an AM_MEDIA_TYPE structure that contains the media type.
Return value
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
DES calls this method before it connects the filter's output pin. Use the media type as the output pin's media type. Return this media type in the CTransformFilter::GetMediaType method, and check agsint this type in the CTransformFilter::CheckTransform method. DES never calls this method after the output pin is connected.
Currently, DES always sets the output media type to an uncompressed RGB format with a VIDEOINFOHEADER format block (format type equals FORMAT_VideoInfo). The subtype might be MEDIASUBTYPE_ARGB32, which indicates 32-bit RGB with an alpha channel.
Note
The header file Qedit.h is not compatible with Direct3D headers later than version 7.
Note
To obtain Qedit.h, download the Microsoft Windows SDK Update for Windows Vista and .NET Framework 3.0. Qedit.h is not available in the Microsoft Windows SDK for Windows 7 and .NET Framework 3.5 Service Pack 1.
Requirements
| Requirement | Value |
|---|---|
| Version |
DirectX 9.0 or later |
| Header |
|
| Library |
|
See also