Aspect Ratio: Fix Stretched or Squeezed Footage
Correct footage that appears stretched or squeezed with the Aspect Ratio tool in vPrism. Use Playback to apply the signaled pixel aspect ratio without altering pixel data, or Resample to rebuild the frame at target dimensions: accurate dimensions with your original data preserved.
Transcript
The Aspect Ratio tool in vPrism corrects footage that appears stretched or squeezed.
This happens when a camera encodes frames at pixel dimensions that don't match the intended display ratio, using non-square pixels signaled by aspect ratio metadata. If that metadata is missing, wrong, or ignored by the player, the distortion shows up on screen. The tool fixes it two ways.
To use it, click Adjust in the Tool Panel and select Aspect Ratio. Choose a method: Resample or Playback.
Playback corrects the display by reading the pixel aspect ratio already signaled in the metadata and applying it to the on-screen image. No pixel values are added, removed, or changed, and the metadata itself is left untouched, the underlying frame data stays exactly as recorded.
Resample takes a different approach. It adds or removes pixels using the same resizing algorithms available in the Resize tool to produce a frame at the specified dimensions.
When Resample is selected, choose whether to preserve the Width or Height, select a target aspect ratio from the dropdown, and choose an interpolation method. The frame is then rebuilt to match those dimensions.
Click Apply to commit the change, or Reset to revert.
And that's the Aspect Ratio tool, accurate dimensions, with your original data preserved.