MFSampleExtension_DeviceTimestamp attribute

Contains the time stamp from the device driver.

Data type

UINT64

Get/set

To get this attribute, call IMFAttributes::GetUINT64.

To set this attribute, call IMFAttributes::SetUINT64.

Applies to

Remarks

This attribute is set on media samples created by a media source for a capture device. This attribute carries the non-adjusted value of the query performance counter (QPC). This attribute is available for MFTs inserted into the capture pipeline.

To get the time stamp relative to the start of streaming, call the IMFSample::GetSampleTime method.

The GUID constant for this attribute is exported from mfuuid.lib.

Requirements

See also

Alphabetical List of Media Foundation Attributes

Audio/Video Capture in Media Foundation

Sample Attributes