Nóta
Aðgangur að þessari síðu krefst heimildar. Þú getur prófað aðskrá þig inn eða breyta skráasöfnum.
Aðgangur að þessari síðu krefst heimildar. Þú getur prófað að breyta skráasöfnum.
Raised by the Media Session when a new presentation starts. This event indicates when the presentation will start and the offset between the presentation time and the source time.
Event values
Possible values retrieved from IMFMediaEvent::GetValue include the following.
| VARTYPE | Description |
|---|---|
| VT_EMPTY |
No event data. |
Attributes
The following attributes are defined for this event.
| Attribute | Description |
|---|---|
| MF_EVENT_START_PRESENTATION_TIME |
Starting time for the presentation. |
| MF_EVENT_PRESENTATION_TIME_OFFSET |
Offset between the presentation time and the media source's time stamps. |
| MF_EVENT_START_PRESENTATION_TIME_AT_OUTPUT |
Presentation time when the media sinks will render the first sample of the new topology. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
| Header |
|
See also