MFSTREAMSINK_MARKER_TYPE enumeration (mfidl.h)
Defines stream marker information for the IMFStreamSink::PlaceMarker method. The PlaceMarker method places a marker on the stream between samples. The MFSTREAMSINK_MARKER_TYPE enumeration defines the marker type and the type of information associated with the marker.
Syntax
typedef enum _MFSTREAMSINK_MARKER_TYPE {
MFSTREAMSINK_MARKER_DEFAULT = 0,
MFSTREAMSINK_MARKER_ENDOFSEGMENT,
MFSTREAMSINK_MARKER_TICK,
MFSTREAMSINK_MARKER_EVENT
} MFSTREAMSINK_MARKER_TYPE;
Constants
MFSTREAMSINK_MARKER_DEFAULT Value: 0 This marker is for the application's use and does not convey any information to the stream sink. |
MFSTREAMSINK_MARKER_ENDOFSEGMENT This marker indicates the end of a segment within a presentation. There might be a gap in the stream until the next segment starts. There is no data associated with this marker. |
MFSTREAMSINK_MARKER_TICK This marker indicates that there is a gap in the stream. The marker data is a LONGLONG value (VT_I8) that specifies the time for the missing sample. The next sample received after this marker might but will not necessarily have the discontinuity flag: the data might remain continuous after the time gap. This marker corresponds to an MEStreamTick event from the stream. |
MFSTREAMSINK_MARKER_EVENT This marker contains a media event. The marker data is a pointer to the event's IMFMediaEvent interface (VT_UNKNOWN). |
Remarks
If the Streaming Audio Renderer receives an MFSTREAMSINK_MARKER_TICK marker, it inserts silence to cover the gap in the data.
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows Vista [desktop apps | UWP apps] |
Minimum supported server | Windows Server 2008 [desktop apps | UWP apps] |
Header | mfidl.h |
See also
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