Adobe 25510629 User Guide - Page 104

Achieving the correct timing for video clips, Trimming the In and Out Points in a video clip

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Achieving the correct timing for video clips This section describes the tasks involved in achieving the correct timing of video clips. Trimming the In and Out Points in a video clip If a video clip contains any content at the beginning or end that you don't want to include in the current session, you can trim the unwanted frames using the In Point or Out Point control on the Input tab. If the input clip has reference frames for keying purposes, this is how you can prevent them from showing in the output movie. You can also use these controls to cut a particular source clip into segments for a series of sessions that collectively produce an advanced compositing result in which the subject appears to be behind a graphical element at one point and in front of it at another point. The Input Preview Monitor shows the entire length of the source clip, but the Output Preview Monitor shows only the trimmed clip. The In Point and Out Point settings are reset when you assign a different clip to the layer. If you intend to return to the original trimmed clip and want to reapply the same trim points, make sure that you note the timecodes before switching sources. The In and Out points do not affect the source clip. They are the timepoints where Ultra starts and stops playing the clip in the session. For more information, see "Advanced compositing tasks" on page 72. For video clips that are assigned to a layer other than the input clip and are longer than it, you should trim them so that they end at the same time as the input clip. The steps are the same regardless of whether you're trimming the In Point or the Out Point. 1. In the Input Preview Monitor or Output Preview Monitor, drag the preview slider to show the frame that you want to trim. 2. To trim the content before the current position, click the Set button to the right of the In Point timecode field. To trim the content after the current position, click Set for the Out Point field. The time displayed at the lower left of the Input Preview Monitor is set as the timecode for the selected trim point, and the Trimmed Duration reading to the right of the trim point controls indicates the length of the clip based on the current settings. 104 How to

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104
How to
Achieving the correct timing for video
clips
This section describes the tasks involved in achieving the correct timing of video clips.
Trimming the In and Out Points in a video clip
If a video clip contains any content at the beginning or end that you don’t want to include in
the current session, you can trim the unwanted frames using the In Point or Out Point control
on the Input tab. If the input clip has reference frames for keying purposes, this is how you
can prevent them from showing in the output movie. You can also use these controls to cut a
particular source clip into segments for a series of sessions that collectively produce an
advanced compositing result in which the subject appears to be behind a graphical element at
one point and in front of it at another point.
The Input Preview Monitor shows the entire length of the source clip, but the Output
Preview Monitor shows only the trimmed clip.
The In Point and Out Point settings are reset when you assign a different clip to the layer. If
you intend to return to the original trimmed clip and want to reapply the same trim points,
make sure that you note the timecodes before switching sources.
The In and Out points do not affect the source clip. They are the timepoints where Ultra
starts and stops playing the clip in the session.
For more information, see
“Advanced compositing tasks” on page 72
. For video clips that are
assigned to a layer other than the input clip and are longer than it, you should trim them so
that they end at the same time as the input clip.
The steps are the same regardless of whether you’re trimming the In Point or the Out Point.
1.
In the Input Preview Monitor or Output Preview Monitor, drag the preview slider to show
the frame that you want to trim.
2.
To trim the content before the current position, click the Set button to the right of the In
Point timecode field. To trim the content after the current position, click Set for the Out
Point field. The time displayed at the lower left of the Input Preview Monitor is set as the
timecode for the selected trim point, and the Trimmed Duration reading to the right of
the trim point controls indicates the length of the clip based on the current settings.