DMO Time Format GUIDs

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The following table lists the globally unique identifiers (GUIDs) defined for media parameter time formats.

GUID Description
GUID_TIME_MUSIC
Music time, in parts per quarter note.
GUID_TIME_REFERENCE
Reference time, in 100-nanosecond units.
GUID_TIME_SAMPLES
Samples per second.

Requirements

Requirement Value
Header
Medparam.h

See also

DMO Constants