Video Picture-in-Picture (PiP) Overlay

Overview

Video Picture in Picture by Wiro composites two videos into one frame. It places an overlay clip in a chosen corner while keeping the main video full-screen. The output keeps the main video’s duration and audio, so you can add a face-cam or reaction layer without re-editing your timeline.

What you can build

• Reaction videos with a face-cam in a corner
• Game capture with a webcam overlay
• Tutorial videos that show a presenter and a screen recording together
• Commentary clips where the main video stays loud and the inset stays silent
• Interview layouts where you want a small “remote guest” window
• Quick social edits that need a consistent PiP layout across many clips

Inputs

• One main video file that fills the full frame. Use MP4, MOV, WebM, MKV, AVI, M4V. The output keeps this video’s length and sound.
• One overlay video file that appears as a smaller window on top. Its audio is removed in the final export.
• A corner placement for the overlay window: top-left, top-right, bottom-left, or bottom-right.
• An optional overlay size as a percentage of the main frame. It supports 5% to 90%. The overlay keeps its aspect ratio and fits inside the frame.
• An optional margin in pixels from the frame edges. It supports 0 to 1000 px.
• An optional setting to loop the overlay when it ends early. If disabled, the overlay disappears after it finishes.
• An optional border width around the overlay window. It supports 0 to 50 px.
• An optional border color as a hex code. It only shows when the border is not 0.

Outputs

The model returns one composed video file.

• The video shows the main clip full-screen with the overlay clip placed on top.
• The output duration matches the main video.
• The output audio comes from the main video only.
• If the main input is MP4, MOV, WebM, MKV, AVI, or M4V, the output keeps that container. Other input containers export as MP4.

Recommended settings

• For a typical face-cam overlay, start with bottom-right placement, 30% overlay size, and 24 px margin.
• If the overlay needs separation from a busy background, add a 2 to 6 px border in a high-contrast color.
• If your overlay clip is shorter than the main clip, enable looping when you need it visible for the full run.

Limitations

• The overlay audio is always removed. If you need both audios, mix audio before running.
• If the overlay clip is shorter and looping is off, the overlay disappears when it ends.
• Extreme overlay sizes can reduce readability. Very small insets hide detail.
• Low-quality inputs can degrade results. Expect issues with heavy compression, corrupted files, variable frame rates, or existing burned-in overlays.
• Odd aspect ratios can make the overlay feel cramped. The overlay keeps its shape and won’t stretch.

Safety & compliance

• Only upload videos you own or have permission to edit.
• Don’t upload private or sensitive footage without consent from the people shown.
• Don’t use overlays to mislead viewers about what was said or shown.
• Review outputs before publishing, especially when faces, logos, or personal data appear on screen.