# pixop/video-compare

Split-screen video comparison tool using FFmpeg and SDL2

Repository: https://github.com/pixop/video-compare
Canonical: https://ross.abutalabs.com/products/video-compare
Language: C++
License: GPL-2.0
License Family: copyleft
Topics: ffmpeg, video, sdl2, comparison, ui, cli, stb-image
Last push: 2026-08-17T18:57:13+00:00

## Health v2 (maintenance only)
Score: 96/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 92, longevity 100
- inputs: {"age_days": 2802, "days_push": 16, "days_rel": 56, "gap_med": 27, "n_releases_24m": 20}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1742, forks 68 (observed 2026-08-28T04:05:30.341924+00:00)

## What it is
A split-screen video comparison tool written in C++ that uses FFmpeg libraries and SDL2 for interactive playback. It lets users visually compare two videos (or images) of differing formats side by side, with analysis modes like subtraction and stacked views.

## Use cases
- compare two video files side by side
- visually check codec compression quality differences
- compare videos with different resolutions or frame rates in sync
- analyze the impact of resizing algorithms on video
- compare image sequences or still images
- spot differences between original and encoded video with subtraction mode

## When to choose
- you need frame-accurate visual comparison of two videos played in sync
- the videos differ in resolution, frame rate, color format, or container
- you want an interactive tool with zoom, time-shift, and subtraction analysis modes

## When to avoid
- you need automated, headless video quality metrics like VMAF or SSIM in a pipeline
- you only need simple video playback without comparison features
- you require a GUI-only workflow without command-line launch

## Facets
- artifact type: cli-tool
- maturity: active
- function: video-processing, gui, cli
- domain: media, developer-tools
- platform: windows, cli, cross-platform
- tags: video-comparison, split-screen, ffmpeg, sdl2, quality-analysis, video, linux, macos

## Member repositories
- pixop/video-compare (main) score 96

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:30.341924+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:29:56.013072+00:00, confidence not recorded.
  - readme: https://github.com/pixop/video-compare (fetched 2026-08-28T04:05:30.341924+00:00, sha 7fc4e6cf4549)
- Data as of 2026-08-30T08:39:29.467469+00:00.