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tearing: A visual rip effect that occurs when one displayed video frame contains parts of two different source video frames, and is usually caused by improper synchronization between video rendering and the graphics display. DirectShow uses double or tripled 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.
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 which channels audio data, video data, or both from an external device to the computer and from the computer to the external device.