finnvoor/fx-upscale

Metal-powered video upscaling

What it solves

It provides a way to upscale video files to higher resolutions while maintaining quality, specifically leveraging Apple's Metal framework for hardware acceleration.

How it works

The tool is a command-line interface (CLI) that takes a video file as input and allows users to specify a target width or height. It uses Metal-powered processing to increase the resolution, defaulting to a 2x upscale if no dimensions are are provided. For videos upscaled beyond 4K, it automatically converts files to .mov and uses the proRes422 codec to ensure playback compatibility on macOS.

Who it’s for

Users on macOS who need a fast, hardware-accelerated method to increase the resolution of their video files via the command line.

Highlights

  • Metal-powered hardware acceleration for video upscaling.
  • Flexible dimension control (set width, height, or both).
  • Automatic codec conversion for high-resolution (>4K) output to ensure macOS playback stability.

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