T

tearing

A visual rip effect that occurs when one displayed video frame contains parts of two different source video frames. It is usually caused by improper synchronization between video rendering and the graphics display. DirectShow uses double- or triple-buffered DirectDraw overlay surfaces when possible to prevent tearing.

In analog video terms, tearing occurs due to poor synchronization of a video signal at an edit point.

timecode

SMPTE timecode, more properly known as SMPTE time and control code, is a series of digital frame address values, flags, and additional data applied to a video or audio stream, and is defined in ANSI/SMPTE 12-1986. Its purpose is to provide a machine-readable address for video and audio.

time stamp

Time on a media sample indicating when it was recorded and when it should be scheduled for playback. Time stamps are measured in 100-nanosecond units (REFERENCE_TIME) and are normalized so that zero indicates when the graph is run. See Time Stamps for more information.

transform filter

A filter that takes data, processes it, and then passes it along to the next filter in the filter graph.

transform-inplace filter

A transform filter that can perform its operation in place (without copying data or altering the data's media type).

transport

The mechanism that channels audio data, video data, or both from an external device to the computer and from the computer to the external device.

trimin

The beginning time (starting position) of a cutlist element or clip within a media file. See About Cutlists for more information.

trimout

The ending time (position) of a cutlist element or clip within a media file. See About Cutlists for more information.

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