IMediaSample::SetMediaType method (strmif.h)
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetMediaType method sets the media type for the sample.
Syntax
HRESULT SetMediaType(
AM_MEDIA_TYPE *pMediaType
);
Parameters
pMediaType
Pointer to an AM_MEDIA_TYPE structure that specifies the media type.
Return value
Returns an HRESULT value. Possible values include those shown in the following table.
| Return code | Description |
|---|---|
|
Success |
|
Insufficient memory |
Remarks
By default, every sample has the same media type as the previous sample. (The pin connection determines the original media type.) Call this method to make limited changes to the media type, such as changing the palette. To make a significant change to the media type, the pins might need to reconnect and renegotiate the media type.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |