Ffmpeg Lens Perspective

Context: $ARGUMENTS

Quick start

• Undistort GoPro/fisheye barrel: → Step 1 → Step 2 (lenscorrection=k1=-0.3)
• Pincushion (telephoto) correction: → Step 2 (lenscorrection=k1=0.3)
• 4-corner keystone/perspective fix: → Step 2 (perspective=...)
• Add cinematic vignette: → Step 2 (vignette=angle=PI/5)
• Remove vignette: → Step 2 (vignette=angle=PI/5:mode=backward)
• Rotate by arbitrary degrees: → Step 2 (rotate=A:ow=rotw(A):oh=roth(A))
• Shear (skew) correction: → Step 2 (shear=shx=0.2:shy=0)
• Camera+lens-aware correction: → Step 2 (lensfun=...)

When to use