Combine-video-and-audio-comfyUI
A set of custom nodes for ComfyUI that merge video and audio using ffmpeg.
ComfyUI – Combine Video & Audio
A set of custom nodes for ComfyUI that merge video and audio using ffmpeg.
Prerequisites
| Dependency | How to install |
|------------|----------------|
| ffmpeg (+ ffprobe) | sudo apt install ffmpeg · brew install ffmpeg · or download from https://ffmpeg.org/download.html and add to PATH |
Nodes
🎬 Combine Video + Audio
Merge two files (a video and an audio track) into one output file.
| Input | Type | Note |
|-------|------|------|
| video_path | STRING | Path to video file |
| audio_path | STRING | Path to audio file |
| output_filename | STRING | Name without extension |
| output_format | mp4 / mkv / mov / webm / avi | |
| video_codec | copy / libx264 / … | copy = no re‑encode |
| audio_codec | copy / aac / … | |
| audio_volume | FLOAT | 1.0 = original |
| shortest | BOOL | Trim to shortest stream |
Output: output_video_path (STRING)
🎞️ Frames + Audio → Video
Convert a ComfyUI IMAGE batch (frames) + audio file into a video.
| Input | Type |
|-------|------|
| images | IMAGE (B,H,W,C) |
| audio_path | STRING |
| fps | FLOAT |
| quality_crf | INT (0‑51) |
Output: output_video_path (STRING)
🔇 Replace / Remove Audio
Strip the existing audio from a video and optionally add a new track.
Leave audio_path empty to produce a silent video.
ℹ️ Get Media Info
Uses ffprobe to return duration, resolution, and codec details.
Installation
cd ComfyUI/custom_nodes
git clone https://github.com/CrazyDashTool/Combine-video-and-audio-comfyUI
# Restart ComfyUI