wyuting wrote I tried opened a new project and import the same video and it looks fine. |
Meaning that the source material fills the frame as you expect it to?
It looks like your edited sequence has a mismatch between the frame size of the sequence and the frame size of your source material.
Here is a way to fix that:
Create a new, empty sequence (File > New > Sequence).
Drag one of your camera source clips into the empty sequence you just created, you will be prompted to match the sequence settings to the properties of the clip, do so.
Now your clip should appear full screen and in the correct aspect ratio in your sequence.
Delete that clip you used to set the correct sequence settings from the sequence and return to the sequence you have been working on. Click on any one of the clips in it and then type Command (Control) + A to select all the clips. Type Command (Control) + C to copy them.
Switch back to your newly created sequence and click anywhere in it. Type Command (Control) + V to paste the clips there.
If they do not look correct in the new sequence, click on any one of the clips to select it. Type Command (Control) + A to select all the clips. Right click on any one of the selected video clips and from the drop down menu choose Remove Attributes.
When the Remove Attributes pane opens, remove the motion attributes.
MtD