Glossary: O
offline
Pertaining to items that are unavailable to the computer, such as offline disks or media files.
offline edit
The preliminary or rough-cut editing that produces an EDL (edit decision list).
OMFI
Open Media Framework Interchange. A standard format for the interchange of digital media data among heterogeneous platforms. The format is designed to encapsulate all the information required to interchange a variety of digital media, such as audio, video, graphics, and still images as well as the rules for combining and presenting the media. The format includes rules for identifying the original sources of the digital media, and it can encapsulate both compressed and uncompressed digital media data.
one light
A telecine transfer or film print produced with a single setting of color correction values. One light is the simplest, fastest, and least costly type of transfer.
online edit
The final edit using the master tapes and an edit decision list (EDL) to produce a finished program ready for distribution; usually associated with high-quality computer editing and digital effects.
opticals
The effects created in a film lab through a process called A-roll and B-roll printing. This process involves a specified manipulation of the film negative to create a new negative containing an effect. The most common opticals used in film editing are fades, dissolves, and superimpositions.
origin
A reference point for measuring sections of recorded or digitized sample data. A file mob value for the start position in the media is expressed in relation to the origin. Although the same sample data can be rerecorded or redigitized, and more sample data might be added, the origin remains the same so that composition source clips referencing it remain valid.
original negative
The actual film stock used in the camera to photograph a scene.
OUT point
The end point of an edit, or a mark on a clip indicating a transition point. Also called a mark OUT.
See also IN point, mark IN/OUT.
outtake
A take that is not selected for inclusion in the finished product.
overlap edit
An edit in which the audio and video signals are given separate IN points or OUT points, so the edit takes place with one signal preceding the other. This does not affect the audio and video synchronization. Also called L-cut, delay edit, or split edit.
overwrite
An edit in which existing video, audio, or both is replaced by new material.
See also splice.
oxide
A metallic coating on videotape or magnetic film that is magnetized during the recording process.

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