MFCreateSourceReaderFromByteStream function (mfreadwrite.h)

Creates the source reader from a byte stream.

Syntax

HRESULT MFCreateSourceReaderFromByteStream(
  [in]  IMFByteStream   *pByteStream,
  [in]  IMFAttributes   *pAttributes,
  [out] IMFSourceReader **ppSourceReader
);

Parameters

[in] pByteStream

A pointer to the IMFByteStream interface of a byte stream. This byte stream will provide the source data for the source reader.

[in] pAttributes

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.

[out] ppSourceReader

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.

Remarks

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

Internally, the source reader calls the IMFSourceResolver::CreateObjectFromByteStream method to create a media source from the byte stream. Therefore, a byte-stream handler must be registered for the byte stream. For more information about byte-stream handlers, see Scheme Handlers and Byte-Stream Handlers.

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

Requirements

See also

Media Foundation Functions

Source Reader