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CMediaSample::GetMediaType (Compact 2013)

  • Artigo

3/26/2014

Retrieves the media type of the CMediaSample object.

Syntax

HRESULT GetMediaType(
  AM_MEDIA_TYPE** ppMediaType 
);

Parameters

  • ppMediaType
    Pointer to a pointer to the retrieved media type.

Return Value

Returns an HRESULT value. When a sample is received and there is no format change, this method returns S_FALSE.

Remarks

This member function implements the IMediaSample::GetMediaType method.

The member function makes a copy of the AM_MEDIA_TYPE structure and creates a task memory block to maintain the reference.

When you are done with the media type, free the memory block with the FreeMediaType utility function, and then free the entire media type with the Win32 CoTaskMemFree function.

Requirements

Header

dshow.h,
Streams.h

Library

ole32.lib,
Ole32auth.lib,
Strmbase.lib,
Strmiids.lib,
uuid.lib

See Also

Reference

CMediaSample Class