MFCreateSourceReaderFromURL function

Creates the source reader from a URL.


HRESULT MFCreateSourceReaderFromURL(
  LPCWSTR         pwszURL,
  IMFAttributes   *pAttributes,
  IMFSourceReader **ppSourceReader



The URL of a media file to open.


Pointer to the IMFAttributes interface. You can use this parameter to configure the source reader. For more information, see Source Reader Attributes. This parameter can be NULL.


Receives a pointer to the IMFSourceReader interface. The caller must release the interface.

Return Value

If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.


Call CoInitialize(Ex) and MFStartup before calling this function.

Internally, the source reader calls the IMFSourceResolver::CreateObjectFromURL method to create a media source from the URL.

This function is available on Windows Vista if Platform Update Supplement for Windows Vista is installed.


Minimum supported client Windows 7, Windows Vista and Platform Update Supplement for Windows Vista [desktop apps | UWP apps]
Minimum supported server Windows Server 2008 R2 [desktop apps | UWP apps]
Target Platform Windows
Header mfreadwrite.h
Library Mfreadwrite.lib
DLL Mfreadwrite.dll

See Also

Media Foundation Functions

Source Reader