Video Save Plus (Custom Path) 🎬 — v2.1.0
Saves a video with its generated audio (MP4, H.264/H.265 + AAC) to any folder
on any drive, plus a workflow PNG, an optional workflow JSON, an optional prompt
.txt and optional frames. Built for models with native audio (Grok Imagine,
MiniMax, …) as well as classic IMAGE + AUDIO workflows.
| Input | What happens |
|---|---|
video (VIDEO) |
Frames, audio and fps are taken from the object and re-encoded with the quality settings. |
images + audio |
Classic: frames piped as raw RGB, audio as raw PCM into ffmpeg. |
source_video_path (v2.1) |
Passthrough: a finished MP4 (e.g. video_path of Grok Imagine Video) is copied 1:1 — no re-encoding, no quality loss, original audio kept. Connect audio as well and only the soundtrack is replaced (video stream copied). Codec/CRF/preset/pixel_format are ignored. |
Typical Grok wiring:
[Grok Imagine Video] --video_path--> source_video_path
--prompt------> prompt_text (name.txt)
--frames------> images (optional: lossless first/last frame, PNG)
video_00012.mp4 ← video with audio
video_00012.png ← first frame + embedded workflow (drag & drop into ComfyUI)
video_00012.json ← workflow as JSON (save_workflow_json)
video_00012.txt ← prompt (only if prompt_text is connected)
video_00012_last Frame.jpg ← via button or save_frame option
video_00012_first Frame.jpg ← via save_frame option
All files share the same base name; the counter is appended automatically.
| Input | Type | Notes |
|---|---|---|
video |
VIDEO (opt.) | Frames, audio and fps are taken from it |
images |
IMAGE (opt.) | Used when no VIDEO is connected; in passthrough only for PNG/frames |
audio |
AUDIO (opt.) | Overrides the audio of a VIDEO input / replaces the passthrough soundtrack |
source_video_path |
STRING (opt.) | Passthrough of a finished MP4 (connect or type a path) |
prompt_text |
STRING (opt.) | Written as name.txt |
seed |
INT (opt.) | For the %seed% placeholder |
filename_prefix |
STRING | Supports subfolders and %date%, %time%, %seed%, %date:yyyy-MM-dd% |
custom_output_path |
STRING | Any folder; empty = ComfyUI output |
frame_rate |
FLOAT | Only for images input |
video_codec |
h264 / h265 | |
crf |
0–51 (default 19) | Main quality control, lower = better |
preset |
ultrafast … veryslow | Speed vs. size, not quality |
pixel_format |
yuv420p / yuv444p | |
audio_bitrate |
64–320 kbit/s | AAC |
save_workflow_png |
BOOLEAN | |
save_workflow_json |
BOOLEAN | new in 2.1 |
png_compression |
0–9 | PNG is always lossless |
save_frame |
none / first / last / first+last / all | all needs frames |
frame_format |
jpg / png | |
frame_quality |
10–100 | JPEG quality |
copy_to_folder |
STRING | Target for "Save Training File" |
Every field has an English tooltip in the node.
Output: filepath — the full path of the saved MP4.
- Reveal in file manager — opens Explorer/Finder with the last MP4 selected.
- Open video (with sound) — plays the last MP4 in the system player.
- Save Last Frame — writes
name_last Frame.jpg/pngfrom the frame kept in memory (lossless, instant); in passthrough mode or after a restart it is extracted from the MP4 with one ffmpeg seek. - Save Training File — copies the whole set (mp4 + png + json + txt + frames) to
copy_to_folderwith identical names. - Delete Last Generation — deletes the whole set after confirmation.
After each run the node shows resolution, frame count, duration, size, whether it
was a passthrough, and an audio status line (✓ Audio: 48000 Hz stereo, 5.00 s /
✓ Audio: 44100 Hz stereo (original track kept) / ⚠ No audio), plus an inline
player with sound.
Security: the server endpoints only operate on files this node saved during the current session — never on arbitrary paths from the browser.
Search for Video Save Plus and install.
cd ComfyUI/custom_nodes
git clone https://github.com/Slartibart23/ComfyUI-CustomVideoSave
Restart ComfyUI, then press Ctrl+F5 in the browser once.
Requirements: ffmpeg on the PATH (or pip install imageio-ffmpeg); ffprobe
(ships with ffmpeg) is used for passthrough status. No torchaudio needed.
MIT