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video-assembly

Video Assembly merges clips from video and voice pipelines into polished final videos. Choose FFmpeg for fast concatenation, audio mixing, and format conversion, or Remotion for animated captions and motion graphics. Includes audio normalization, subtitle support, and quality presets for YouTube and social media.

Video Assembly combines multiple clips and audio tracks into finished videos using FFmpeg or Remotion.

AI-generated summary based on this skill's SKILL.md

84 23 MIT updated by MCKRUZ

Install

MCKRUZ/ComfyUI-Expert/video-assembly · repository language: Shell

git clone https://github.com/MCKRUZ/ComfyUI-Expert
cp -r ComfyUI-Expert/skills/video-assembly ~/.claude/skills/video-assembly
npx skillfed install MCKRUZ/ComfyUI-Expert/video-assembly

Frequently asked questions

AI-generated answers based on this skill's SKILL.md and metadata

How do I combine multiple video clips with video-assembly?

Video-assembly merges multiple video files into a single final deliverable using FFmpeg for fast concatenation. You can combine clips sequentially, apply transitions between segments, and maintain quality throughout the assembly process. The tool handles various input formats and produces optimized output for your target platform.

Can video-assembly merge video and audio tracks together?

Yes, video-assembly specializes in merging video and audio tracks into unified files. It combines your video clips with separate audio tracks—such as voiceovers, background music, or dialogue—while normalizing audio levels to ensure consistent volume across the final output.

What audio mixing features does video-assembly provide?

Video-assembly normalizes audio levels and mixes background music with dialogue, ensuring professional sound balance in your final video. It supports multiple audio track inputs, level adjustment, and can combine screen recordings with voiceovers or other layered audio sources for polished delivery.

Does video-assembly support subtitles and visual effects?

Video-assembly adds transitions, subtitles, and visual effects between video segments. For animated captions and motion graphics, you can use Remotion templates within the assembly workflow. Subtitles integrate seamlessly with your video clips for accessibility and engagement.

How does video-assembly optimize videos for different platforms?

Video-assembly converts video formats and optimizes output for specific delivery platforms including YouTube and social media. It includes quality presets tailored to each platform's requirements, ensuring your final video meets technical specifications and plays reliably across devices.

Is video-assembly open source and what license does it use?

Video-assembly is released under the MIT license, making it free and open source. You can use, modify, and distribute it freely within the terms of the MIT license, making it ideal for both personal projects and commercial video production workflows.

SKILL.md

rendered from the published skill — quoted content, verbatim

Video Assembly

Combines outputs from video and voice pipelines into final deliverable videos.

Two Assembly Modes

Mode 1: FFmpeg (Simple, Fast)

Best for: Concatenation, audio mixing, basic transitions, format conversion.

No dependencies beyond FFmpeg (pre-installed on most systems).

Mode 2: Remotion (Complex Compositions)

Best for: Animated captions, data visualizations, complex motion graphics, React-based templates.

Uses existing remotion-best-practices skill for guidance.

FFmpeg Operations

Concatenate Video Clips

```bash

Create file list

echo "file 'clip1.mp4'" > filelist.txt echo "file 'clip2.mp4'" >> filelist.txt echo "file 'clip3.mp4'" >> filelist.txt

Concatenate (same codec/resolution)

ffmpeg -f concat -safe 0 -i filelist.txt -c copy output.mp4

(truncated - see the full file via the links below)

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skills/video-assembly/SKILL.md

Related skills

Tags

video-composition multi-track-audio clip-sequencing post-production-workflow format-standardization loudness-compliance frame-interpolation subtitle-integration