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render-verify

Validate MP4 video files for playback integrity and detect corruption.

1|Updated Mar 5, 2026
Search Tags:#error detection#video verification#playback integrity#MP4 check#video quality assurance
One-click install
npx skills add https://github.com/MCERQUA/jam-skills --skill render-verify-mcerqua
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: render-verify
Source: https://github.com/MCERQUA/jam-skills/tree/main/render-verify
Command: npx skills add https://github.com/MCERQUA/jam-skills --skill render-verify-mcerqua

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ffmpeg, ImageMagick, volumedetect, and includes scripts (resource) components.

What problem does it solve?

This Skill verifies the integrity of video files, ensuring they play back correctly before they are distributed to clients or published.

Core Features & Use Cases

  • Video Integrity Check: Verifies that MP4 files are not only metadata-valid but also playable.
  • Error Detection: Identifies common issues like h264 NAL corruption, solid-color frames, missing audio, and duration drift.
  • Use Case: Before sending a 'V*_DONE' signal or moving to the next iteration, this skill ensures the video is free of errors that could lead to playback issues.

Quick Start

Run 'render-verify' on your video file to check its integrity.

Frequently Asked Questions about render-verify

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I check MP4 video playback integrity before distribution?▼

Verifying MP4 playback integrity involves scanning video frames and audio streams to detect corruption, solid-color frames, and missing audio. This process ensures the file is playable and free of common rendering errors before distribution.

What video errors should I look for when validating rendered MP4 files?▼

Validating rendered MP4 files requires detecting h264 NAL corruption, solid-color frames, missing audio, and duration drift. Catching these specific playback issues guarantees the video file is metadata-valid and truly playable.

Do I need ffmpeg and ImageMagick to verify video files for missing audio?▼

Yes, ffmpeg and ImageMagick are required to verify video files for missing audio and playback integrity. The Skill relies on these dependencies to process video frames and audio streams for error detection.

How does video quality assurance detect solid-color frames in MP4s?▼

Video quality assurance detects solid-color frames in MP4s by processing extracted video frames through ImageMagick. This visual analysis identifies rendering failures where the video displays a static color instead of the intended content.

Can I automate MP4 error detection before sending a V*_DONE signal?▼

Yes, you can automate MP4 error detection by running a verification script on your video file before sending a V*_DONE signal. This checks for playback issues like missing audio and corruption to ensure the file is ready for the next iteration.

What is the best way to verify video files are playable and not just metadata-valid?▼

The best way to verify video files are playable is to check both metadata and frame data for h264 NAL corruption, solid-color frames, and missing audio. This ensures true playback integrity rather than just metadata validity.

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