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MFP_MF_EVENT structure

Important  Deprecated. This API may be removed from future releases of Windows. Applications should use the Media Session for playback.

Event structure for the MFP_EVENT_TYPE_MF event. The MFPlay player object uses this event to forward certain events from the Media Foundation pipeline to the application.

Syntax


typedef struct MFP_MF_EVENT {
  MFP_EVENT_HEADER header;
  MediaEventType   MFEventType;
  IMFMediaEvent    *pMFMediaEvent;
  IMFPMediaItem    *pMediaItem;
} MFP_MF_EVENT;

Members

header

MFP_EVENT_HEADER structure that contains data common to all IMFPMediaPlayer events.

MFEventType

Media Foundation event type. Currently, the MFPlay player object forwards the following pipeline events to the application:

EventDescription
MEBufferingStarted The source has started buffering data.
MEBufferingStopped The source has stopped buffering data.
MEExtendedType Custom event type.
MEReconnectEnd The source has completed an attempt to reconnect to the server.
MEReconnectStart The source is attempting to reconnect to the server.
MERendererEvent Event sent by a renderer, such as the Enhanced Video Renderer (EVR).
MEStreamSinkFormatChanged A stream format has changed.

 

pMFMediaEvent

Pointer to the IMFMediaEvent interface of the Media Foundation event.

pMediaItem

Pointer to the IMFPMediaItem interface of the current media item.

Remarks

To get a pointer to this structure, cast the pEventHeader parameter of the IMFPMediaPlayerCallback::OnMediaPlayerEvent method. You can use the MFP_GET_MF_EVENT macro for this purpose.

If MFEventType is MEStreamSinkFormatChanged, the following property may be stored in the event property store, which can be accessed through the header.pPropertyStore member.

PropertyDescription
MFP_PKEY_StreamIndex The index of the stream whose format changed.

 

Requirements

Minimum supported client

Windows 7 [desktop apps only]

Minimum supported server

Windows Server 2008 R2 [desktop apps only]

Header

Mfplay.h

See also

Media Foundation Structures
Using MFPlay for Audio/Video Playback
IMFPMediaPlayerCallback

 

 

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