Can I fix frame rate issues without re-encoding the whole video?

Yes, in many cases you can retag the video track timescale metadata using FFmpeg, and this skill provides the specific commands to do so without losing quality.

What is the difference between 23.976 and 24 fps?

23.976 is a fractional rate designed for NTSC broadcast compatibility, while 24 is the standard for true film; this skill helps you identify and convert between them.

How can I detect duplicate frames in a video file?

The skill provides specific FFmpeg commands using the mpdecimate filter and manual inspection workflows using mpv to identify identical adjacent frames.

Why is my video out of sync in my video editor?

Sync issues are often caused by Variable Frame Rate (VFR) common in phone recordings; this skill helps you detect VFR and convert it to Constant Frame Rate (CFR) for stability.

Frame Rate Audit

Name: Frame Rate Audit
Author: robbyt

byrobbyt

•

开发者工具

Analyzes video frame rate characteristics to detect timing issues, duplicate frames, and variable frame rate (VFR) conflicts.

关于

This skill provides comprehensive guidance for auditing video files to ensure playback consistency and professional editor compatibility. It helps users identify the differences between Constant Frame Rate (CFR) and Variable Frame Rate (VFR), diagnose motion judder, and detect duplicate frames using industry-standard tools like MediaInfo and FFmpeg. Whether you are troubleshooting audio-video desync in Premiere Pro or optimizing screen recordings for production, this skill provides the precise commands and diagnostic workflows needed to master video timing.

主要功能

Guidance on fractional rates and NTSC vs. Film standards
FFmpeg commands for frame rate conversion and retagging
Detect Constant vs. Variable Frame Rate (CFR/VFR) modes
Workflow for professional editor compatibility (Premiere, DaVinci)
Identify and diagnose duplicate frames and motion judder
37 GitHub stars

使用场景

Auditing screen recordings for frame drops before final production
Fixing audio/video sync issues in professional non-linear editors
Converting mobile phone VFR footage to production-ready CFR

关于

主要功能

Guidance on fractional rates and NTSC vs. Film standards
FFmpeg commands for frame rate conversion and retagging
Detect Constant vs. Variable Frame Rate (CFR/VFR) modes
Workflow for professional editor compatibility (Premiere, DaVinci)
Identify and diagnose duplicate frames and motion judder
37 GitHub stars

使用场景

Auditing screen recordings for frame drops before final production
Fixing audio/video sync issues in professional non-linear editors
Converting mobile phone VFR footage to production-ready CFR