System information
If you want to adjust temporal interpolation how motion  occurs over time change a keyframe type by  
right-clicking a keyframe and choosing a new interpolation curve type  (linear, fast, slow, smooth, 
sharp, or hold).
During playback, intermediate frames are interpolated to  create smooth motion. For more information, see 
"Keyframe Animation" on page 294.
Use the Default  Pan/Crop smoothness control on the Editing  tab of the Preferences dialog to set the 
default Smoothness value for  new keyframes.
Editing source media aspect ratio and stretching
Use the controls in the Source  heading on the left side of the Pan/Crop plug-in to indicate how your  video 
will be stretched or cropped.
Item Description
Maintain aspect ratio Choose Yes from  the drop-down list (or select the   button) to 
prevent distortion of the source  media file.
When you choose No,   the source media's ratio of height to width is 
not preserved when video  is stretched in the output frame.
Stretch to fill frame Choose Yes from  the drop-down list if you want the media in the 
selection box to fill  the output frame.
When you choose No,   the media retains its original size, and the area 
outside the selection  box is cropped.
Editing workspace display settings
Use the controls in the Workspace  heading on the left side of the Pan/Crop plug-in to change the display.
Item Description
Zoom To change the magnification of the video in  the workspace, select 
the Zoom  box and type a new setting, or select the box and click the 
  button to display a slider that you can use to adjust the 
magnification  level.
X offset To pan the display left or right, select the  X offset box and type a 
new setting,  or select the box and click the   button to display a 
slider that you can use  to adjust the offset.
Negative values move the video to the left,  positive values move to 
the right, and 0 represents the horizontal center  of the workspace.
ANIMATING VIDEO EVENTS AND TRACKS283










