Spaces:
Running
Running
| title: Wan 2.2 Extend | |
| emoji: 🎬 | |
| colorFrom: indigo | |
| colorTo: purple | |
| sdk: gradio | |
| sdk_version: 5.44.1 | |
| app_file: app.py | |
| pinned: false | |
| license: apache-2.0 | |
| short_description: Wan 2.2 I2V + Extend chaining for ~10–20s clips | |
| hf_oauth: true | |
| hf_oauth_scopes: | |
| - inference-api | |
| # Wan 2.2 Image → Video + Extend | |
| Helper Space by **Casey (Simzy)**: generate a short [Wan 2.2](https://huggingface.co/spaces/kulkas2pintu/wan222) image-to-video clip on **free ZeroGPU**, then **Extend** by chaining until you reach roughly **10–20 seconds**. | |
| This Space does **not** load the 14B Wan weights itself. It calls the public ZeroGPU Space `kulkas2pintu/wan222` via `gradio_client`, then stitches segments with ffmpeg. | |
| ## How to use | |
| 0. Click **Sign in with Hugging Face**. Generation uses **your own** ZeroGPU quota; the Space owner's token is never used, and signed-out requests are refused. | |
| 1. Upload a still image and write a **Generate prompt**. | |
| 2. Click **Generate** — wait for ZeroGPU (often 1–3 minutes when busy). | |
| 3. Optionally set an **Extend prompt** (leave blank to reuse Generate prompt) and choose **Extend start**: | |
| - **Last frame from video** (default) — current behavior | |
| - **Upload custom image** — use a different image as the I2V start for the next segment | |
| 4. Click **Extend** to continue, or set a target length and use **Auto-extend** (capped at 6 segments). | |
| 5. Download the concatenated MP4. | |
| ### Length guide | |
| | Segment length | Segments | Rough total | | |
| |----------------|----------|-------------| | |
| | ~3.5s | 3 | ~10s | | |
| | ~3.5s | 4–5 | ~14–18s | | |
| | ~4–5s | 4 | ~16–20s | | |
| ## Honesty about ZeroGPU | |
| - Each visitor signs in with HF OAuth; upstream calls to `kulkas2pintu/wan222` carry that visitor's token, so ZeroGPU time and any overage bill to the visitor, not the Space owner. The Space has no `HF_TOKEN` secret. | |
| - ZeroGPU is **free** but **queued and quota-limited** — not unlimited. | |
| - Each segment is a separate upstream call; longer videos = more waits. | |
| - If the queue is full or quota exhausted, wait and retry. | |
| ## Architecture | |
| ``` | |
| [Your image] → Generate → clip1.mp4 | |
| ↓ last frame (or custom upload) | |
| Extend → clip2.mp4 → ffmpeg concat → longer.mp4 | |
| ↓ … | |
| ``` | |
| Upstream API: `generate_video` on `kulkas2pintu/wan222` (same endpoint used by Command Center). | |
| ## Local files | |
| Source also lives at `/workspace/wan22-extend/` on the agent box for re-push if needed. | |
| Safe snapshot of v1: `/workspace/wan22-extend-snapshots/v1-working-20260922-055108/` (+ `.tgz`). | |
| HF branch `backup-v1-working` is frozen and should not be overwritten. | |
| ## License / ToS | |
| Apache-2.0 for this app code. Hugging Face Terms of Service apply to hosted Spaces and ZeroGPU usage. | |