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893Final Cut Pro User Guide
job Each media file added to a batch in Compressor is a job. Each job has one media file
and one or more settings that define the type of file to render. See also batch, source
media files.
JPEG A popular image file format that lets you create highly compressed graphics files.
The amount of compression used can vary. Less compression results in a higher-quality
image.
keyframe A control that denotes the value of a video or audio effect parameter at a
particular point in the project. When two keyframes with different values are set in
Final Cut Pro, a transition from one value to another is calculated, resulting in a dynamic
change to that parameter. The word keyframe comes from the traditional workflow in the
animation industry, where only important (key) frames of an animated sequence were
drawn to sketch a character’s motion over time. After the keyframes were determined, an
in-between artist drew all the frames between the keyframes.
keying See chroma key, luma key.
Keyword Collection When you apply a keyword to a clip, a Keyword Collection is
automatically created in the event in the library. When you select the Keyword Collection,
each clip tagged with that keyword is displayed in the browser. See also event, keywords.
keywords Keywords add descriptive information to a clip or clip range. You can use
keywords to organize, sort, and classify media. You can add keywords to a clip manually,
and Final Cut Pro can also add keywords automatically during import or clip analysis. See
also Keyword Collection.
L-cut See split edit.
Libraries sidebar
The pane in the Final Cut Pro sidebar that lists the libraries and events
that contain your imported media (video, audio, and still images) and your projects. When
you select an event or a library in the Libraries sidebar, its media appears as clips in the
browser, and its projects appear as thumbnails. The Libraries sidebar is also the home for
Final Cut Pro Keyword Collections and Smart Collections, which provide a powerful way to
organize your media using keywords and persistent search filters. See also event, Keyword
Collection, Smart Collection.
linear editing Before digital video editing, programs were edited together by copying
shots from the original source tapes to a program tape, one by one. Because the
assembly was linear, any changes in duration made to an earlier point of the tape required
reassembling the movie from that point forward. See also nonlinear editing.
looping A playback mode in which clips and projects go back to the beginning whenever
the playhead reaches the end of the media. You can turn looping on or off from the View
menu or by pressing Command-L.
lower third A television industry term for a graphic placed in the lower area of the screen,
usually to convey details about subjects or products. A common use of lower thirds is to
identify individuals on the screen with their names and job titles.
luma A value describing the brightness of a video image. A luma channel is a grayscale
image showing the range of brightness across the whole clip.