> ## Documentation Index
> Fetch the complete documentation index at: https://comfytv.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Video Clip

> Trim a video to a [start_s, end_s] range, keep original frame rate. **PyAV** on disk → new `COMFYTV_VIDEO` snapshot.

<Frame caption="Video Clip · screenshot coming soon">
  <img src="https://mintcdn.com/comfytv/dMkMxJDZdIo4YzAU/images/nodes/_placeholder.svg?fit=max&auto=format&n=dMkMxJDZdIo4YzAU&q=85&s=b54171099e5b02d4313fe581171ebbcc" alt="Video Clip" width="800" height="450" data-path="images/nodes/_placeholder.svg" />
</Frame>

## What this node does

**Video Clip** cuts **\[start\_s, end\_s]** from a full clip and drops the rest. Use it to pull the best part from a long generation, align lip-sync segments, or shorten before Crop / Resize. If **end\_s** is 0 or ≤ **start\_s**, duration extends to the source end.

No GPU — PyAV streams read/write; output lands in ComfyUI output as a `/view?` URL.

## When to use it

* Extract a usable segment from long T2V / I2V output
* Normalize clip length before timeline concat
* Trim then Demux or Extract Frame

## How ComfyTV designed this

* **Stage** + **▶ Run**: re-trims upstream snapshot only.
* **Snapshot**: downstream reads Clip output; change times → Run again.
* **PyAV**: `trim_video` in [`runners/media.py`](https://github.com/jtydhr88/ComfyTV/blob/main/runners/media.py).

## Types (COMFYTV\_\* vs native ComfyUI)

| ComfyTV type    | What it is         | vs ComfyUI             |
| --------------- | ------------------ | ---------------------- |
| `COMFYTV_VIDEO` | Video URL snapshot | Bridge to/from `VIDEO` |

See [bridges.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/bridges.md).

## Parameters

### video (input)

Source `COMFYTV_VIDEO`. Required.

### start\_s

Clip start in seconds, default 0.

### end\_s

Clip end in seconds, default 5. 0 or empty → source **duration**. Must be **> start\_s**.

## Outputs

| Output    | Type            | Meaning      | Downstream                         |
| --------- | --------------- | ------------ | ---------------------------------- |
| **video** | `COMFYTV_VIDEO` | Trimmed clip | Crop, Resize, Demux, Extract Frame |

## Step by step

1. Run upstream **Video Stage** or **Load Video**.
2. Add **Video Clip**, wire **video**.
3. Set **start\_s** / **end\_s**.
4. **▶ Run**, check preview duration.
5. Wire **Video Crop** or **Demux**.

## Full guides (recommended reading)

> This page covers **one node only**. For end-to-end workflows, multi-stage pipelines, type conversion, and design rationale, see the [ComfyTV user guides](https://github.com/jtydhr88/ComfyTV/tree/main/docs) on GitHub:

| Guide                                                                                    | Contents                                                                |
| ---------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- |
| [Getting started](https://github.com/jtydhr88/ComfyTV/blob/main/docs/getting-started.md) | Install, canvas basics, per-stage Run, snapshots, Project, Image Picker |
| [Video and audio](https://github.com/jtydhr88/ComfyTV/blob/main/docs/video-and-audio.md) | Clip, crop, resize, extract frame, demux vs Generate video              |

## Repository and workflows

| Resource               | Link                                                                                                                                             |
| ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| **GitHub repository**  | [https://github.com/jtydhr88/ComfyTV](https://github.com/jtydhr88/ComfyTV)                                                                       |
| **User guides index**  | [https://github.com/jtydhr88/ComfyTV/tree/main/docs](https://github.com/jtydhr88/ComfyTV/tree/main/docs)                                         |
| **Built-in workflows** | [https://github.com/jtydhr88/ComfyTV/tree/main/workflows](https://github.com/jtydhr88/ComfyTV/tree/main/workflows)                               |
| **Model checklist**    | [https://github.com/jtydhr88/ComfyTV/blob/main/docs/models.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/models.md)                     |
| **Custom workflows**   | [https://github.com/jtydhr88/ComfyTV/blob/main/docs/custom-workflows.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/custom-workflows.md) |

## FAQ

**Q: end\_s beyond duration?**\
A: Clamped; must still be **> start\_s**.

**Q: Frame rate changed?**\
A: No — PyAV preserves source rate.

**Q: mesh2motion VIDEO?**\
A: **→ ComfyTV Video** first (Run snapshot), then Clip.

## Related nodes

* **Video Crop** / **Video Resize**
* **Demux · Audio Track** / **Silent Video**
* **→ ComfyTV Video**