ADOBE PREMIERE PRO 2.0
User Guide
384
Quality
If available, drag the slider or type a value to affect the exported video’s picture quality and, consequently, its
file size. If you are using the same codec to capture and export, and you’ve rendered previews of a sequence, you can
save rendering time by matching the export quality setting with your original capture quality setting. Increasing
quality above the original capture quality does not increase quality, but may result in longer rendering times.
Limit Data Rate to _ K/Sec
Select (if available for the selected compressor) and type a data rate to place an upper limit
on the amount of video data produced by the exported video when it is played back.
Note:
In some codecs, quality and data rate are interrelated, so that adjusting one option automatically alters the other.
Recompress
Select to ensure that Adobe Premiere Pro exports a video file that is under the data rate you specified.
Choose Always from the Recompress menu to compress every frame, even if it is already within the data rate, or
choose Maintain Data Rate to preserve quality by compressing only the frames that are above the specified data rate.
Recompressing previously compressed frames may lower picture quality. Deselect Recompress to prevent current
compression settings from being applied to clips that were not altered when you edited them into the program.
Keyframe And Rendering export settings
The following options are available in the Keyframe And Rendering panel of the Export Movie Settings dialog box
and the Export Frame Settings dialog box:
Fields
Choose an option if required for your final medium. No Fields (the default) is the equivalent of progressive
scan, which is the correct setting for computer display and motion-picture film. Choose Upper Field First or Lower
Field First when exporting video for an interlaced medium, such as NTSC, PAL, or SECAM. The option you choose
depends on the specific video hardware you use.
Deinterlace Video Footage
Select this option if the video content in the sequence is interlaced and you are exporting
to a noninterlaced medium, such as motion-picture film or progressive scan video. Deinterlacing can also make it
easier to apply high-quality effects in another program, such as Adobe After Effects. If the sequence content does not
have fields, don’t select this option; instead select No Fields from the Fields option.
Optimize Stills
Select this option to use still images efficiently in exported video files. For example, if a still image
has a duration of 2 seconds in a project set to 30 fps, Adobe Premiere Pro creates one 2-second frame instead of 60
frames at 1/30 of a second each. Selecting this option can save disk space if you used still images. Deselect this option
only if the exported video file exhibits playback problems when displaying the still images.
Keyframe Every _ Frames
Select and type the number of frames after which the codec will create a keyframe when
exporting video.
Add Keyframes at Markers
Select this option to create keyframes only where markers exist in the Timeline window.
For this to work, markers must exist in the Timeline window (see “To add an unnumbered sequence marker” on
page 140 and “To add a numbered marker” on page 141).
Add Keyframes at Edits
Select this option to create a keyframe at edit points in the Timeline window.
Note:
Some codecs do not provide control over keyframes. In such codecs, the above options will not be available.
See also
“About interlaced and noninterlaced video” on page 129
“About compression” on page 374
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