You can animate the position
of the crop box to pan and scan a 16:9 clip to a 4:3 format. Pan
and scan is a technique widely used for resizing 16:9 clips to a
4:3 resolution when the area of interest in the shots is to one
side of the 16:9 frame. You can follow the area of interest in the
shot by animating the crop box along the X-axis.
You
can also animate the size of the crop box and lock the output to
the crop box. This animates the resolution of the clip, meaning
that the second frame of the clip is different from the first. You
can do this only in Batch.
To pan and scan a 16:9 clip to a 4:3
clip:
- Access
the Resize menu for a 16:9 clip from the A/V Tools, in Batch, or
from soft effects if you are working on the timeline.
- Enable Regen to get dynamic visual feedback
of the result clip in the viewport on the right. Regen is availble
only when you access Resize from the EditDesk or timeline.
See
Getting Dynamic Feedback in Result View.
- From the Resolution Presets box, select
the 4:3 resolution to which you want to resize the source.
- From the Fit Method box, select Crop
Edges.
- Click the Source button next to the Clip
label to make the crop box the same size as the source frame.
- Depending on the source and destination
resolutions, select a scan mode from the Scan Mode box.
- Go to the first frame.
- Enable Autokey to create position keyframes
for the crop box automatically.
- Scrub through the clip to identify areas
where the area of interest includes the left and right edges of
the clip outside the crop box.
- Animate the position of the crop box
accordingly by dragging the crop box. Press Shift while dragging the crop box
to constrain changes in position to the X-axis:
- If the area of interest changes suddenly
following a splice between clips, add a keyframe for the X-position
of the crop box at the last frame of the outgoing shot, and then
add another keyframe at the first frame of the incoming shot.
- If the area of interest changes with
camera movement, create a linear or hermite animation to change
the X-position of the crop box gradually.
- Depending on the source and destination
resolutions, select a scan mode from the Scan Mode box.
- Process the result.
