ResizeVideo

What is it?

The ResizeVideo node resizes video content using multiple scaling modes (width, height, percentage, or width and height) with FFmpeg. It can preserve aspect ratio, pad with a background color, or crop to fill depending on your fit mode.

When would I use it?

Use the ResizeVideo node when:

• You need to scale videos by a precise percentage
• You want to target a specific width or height while preserving aspect ratio
• You need to fit videos into exact dimensions with padding or cropping
• You want consistent resizing controls across video workflows

How to use it

Basic Setup

1. Add a ResizeVideo node to your workflow
2. Connect a video source to the "video" input
3. Choose a "resize_mode"
4. Configure the size parameters for that mode
5. Run the workflow to resize the video

Parameters

• video: The video content to resize (supports VideoArtifact and VideoUrlArtifact)

• resize_mode: How the video should be resized

  • width: Resize to a target width while preserving aspect ratio
  • height: Resize to a target height while preserving aspect ratio
  • percentage: Resize by a percentage of the original size
  • width and height: Resize to exact dimensions with fit options

• target_size: Target size in pixels for width/height modes (1-8000)

• percentage: Resize percentage (1-500, default: 100)

• target_width: Target width in pixels for width and height mode

• target_height: Target height in pixels for width and height mode

• fit_mode: How to fit the video within the target dimensions

  • fit: Preserve aspect ratio and add padding (letterboxing)
  • fill: Preserve aspect ratio and crop to fill the target
  • stretch: Ignore aspect ratio and stretch to the target

• background_color: Background color for letterboxing in fit mode (hex)

• scaling_algorithm: The scaling algorithm used for resizing (default: "bicubic")

  • neighbor, bilinear, bicubic, lanczos

• lanczos_parameter: Fine-tune the Lanczos scaling algorithm (1.0-10.0, default: 3.0)

  Only affects the output when scaling_algorithm is set to "lanczos".

Outputs

• resized_video: The resized video content, available as output to connect to other nodes

Example

To resize a video to 1280x720 while preserving aspect ratio with padding:

1. Set resize_mode to width and height
2. Set target_width to 1280
3. Set target_height to 720
4. Set fit_mode to fit
5. Set background_color to #000000

Important Notes

• The ResizeVideo node uses FFmpeg for video processing
• Dimensions are automatically adjusted to be divisible by 2 for codec compatibility
• The node supports common video formats (mp4, avi, mov, etc.)
• The resized video maintains the original audio track
• Logs are available for debugging processing issues