# Workflow Utilities Scale Video API

> Binabago ang laki ng video ayon sa width at height gamit ang stretch, pad o crop mode, kasama ang codec at quality setting

Binabago ang laki ng video sa target na `width` (hanggang 7680) at/o `height` (hanggang 4320); kung isa lamang ang ibinigay, sinusunod ng isa pa ang aspect ratio. Maaaring stretch, pad (na may napiling kulay) o crop ang `mode`. Mag-encode gamit ang libx264 o libx265, speed preset mula ultrafast hanggang slow, at `crf` mula 0 hanggang 51. Ibinabalik ang orihinal at bagong dimension.

- Model id: `workflow-utilities/scale-video`
- Made by: Utility
- Category: Video to Video
- Output: video
- Charged by usage (up to $3.60 per run, typical $0.032; the rest of the hold is refunded): $0.001 / second of processing time (cheapest run $0.032 (32 API credits))
- Run: `POST https://api.doitong.com/v1/run/workflow-utilities/scale-video`
- Quote: `POST https://api.doitong.com/v1/quote/workflow-utilities/scale-video`
- Docs page: https://doitong.com/fil/developers/models/workflow-utilities/scale-video

## Pricing

Price: **$0.001 / second of processing time**. Charged by actual usage at $0.001 / second of processing time: up to $3.60 per run (the quote gives the maximum for your input), the rest is refunded automatically after the run. A typical run costs $0.032.

The full example input below holds up to $3.60 = 3600 API credits (up to 3600 s of processing time × $0.001) when it starts; a typical run costs $0.032 (32 API credits).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). This model is charged by usage: `POST https://api.doitong.com/v1/quote/workflow-utilities/scale-video` with the same JSON body returns the most the run can cost for that input (`credits`, debited when the run starts); after the run you pay the usage the model reports and the rest is refunded automatically. An input whose maximum would exceed the per-run limit is refused with 422. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `video_url` | `video` | string (video URL) | yes |  |  | Ibigay ang video na ia-scale o ire-resize ayon sa URL, gamit ang even-numbered dimensions para sa height at width upang matugunan ang mga requirement ng video codec. |
| `width` |  | integer \| null | no |  | 2 – 7,680 | Lapad ng output sa pixels, maaaring gamitin nang mag-isa o kasama ng height; kailangan ang kahit isang dimension. Kapag width lang, awtomatikong kinukuha ang height nang hindi binabago ang aspect ratio. |
| `height` |  | integer \| null | no |  | 2 – 4,320 | Taas ng output sa pixels, maaaring gamitin nang mag-isa o kasama ng width; kailangan ang kahit isang dimension. Kapag height lang, awtomatikong kinukuha ang width nang hindi binabago ang aspect ratio. |
| `mode` |  | enum (string) | no | `stretch` | `stretch`, `pad`, `crop` | Paraan ng pag-resize: pinipilit ng `stretch` ang hiniling na dimensions at maaaring baguhin ang aspect ratio. Pinapanatili ng `pad` at `crop` ang aspect ratio: inilalagay ng `pad` ang video sa loob ng hiniling na dimensions at pinupunan ang bakanteng espasyo gamit ang napiling kulay (letterboxing/pillarboxing). Pinupuno ng `crop` ang hiniling na dimensions, pagkatapos ay nagka-crop sa gitna upang tumugma sa eksaktong laki. |
| `pad_color` |  | enum (string) | no | `black` | `black`, `white`, `red`, `green`, `blue`, `gray` | Kulay na ginagamit para sa padding sa `pad` mode; hindi ito pinapansin ng ibang mode. |
| `codec` |  | enum (string) | no | `libx264` | `libx264`, `libx265` | Piliin ang encoding codec: gamitin ang libx265 (H.265/HEVC) para sa mas mahusay na compression, o libx264 (H.264) para sa malawak na compatibility. |
| `preset` |  | enum (string) | no | `fast` | `ultrafast`, `fast`, `medium`, `slow` | Preset na kumokontrol sa bilis ng encoding. Ang mas mabagal na preset ay nagpapahusay sa compression ngunit nagpapahaba sa encoding time. |
| `crf` |  | integer | no | `18` | 0 – 51 | Constant Rate Factor na kumokontrol sa quality sa saklaw na 0–51, kung saan karaniwang mukhang lossless ang 18 para sa karamihan ng content. Ang pagpapababa sa setting ay nagpapahusay sa quality ngunit nagpapalaki sa file size. |

File parameters (`video`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

A fuller example:

```json
{
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/workflow-utilities/scale-video?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.com/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/workflow-utilities/scale-video?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/workflow-utilities/scale-video", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.com/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "workflow-utilities/scale-video",
      "input": {
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "workflow-utilities/scale-video",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 3600,
    "usd": "3.60",
    "charged": 3600,
    "refunded": 0
  },
  "input": {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    },
    "original_width": 1929,
    "original_height": 1082,
    "scaled_width": 1920,
    "scaled_height": 1080
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | Video pagkatapos i-scale o i-resize. |
| `original_width` | integer | Lapad ng orihinal na video, sinusukat sa pixels. |
| `original_height` | integer | Taas ng orihinal na video, sinusukat sa pixels. |
| `scaled_width` | integer | Lapad ng output video, sinusukat sa pixels. |
| `scaled_height` | integer | Taas ng output video, sinusukat sa pixels. |

## Related models

- [Workflow Utilities Extract Nth Frame](https://doitong.com/developers/models/workflow-utilities/extract-nth-frame.md) (`workflow-utilities/extract-nth-frame`): $0.001 / second of processing time
- [Workflow Utilities Pick Image By Index](https://doitong.com/developers/models/workflow-utilities/pick-image-by-index.md) (`workflow-utilities/pick-image-by-index`): $0.001 / run
- [Workflow Utilities Auto Subtitle](https://doitong.com/developers/models/workflow-utilities/auto-subtitle.md) (`workflow-utilities/auto-subtitle`): $0.03 / minute of input video
- [Workflow Utilities Blend Video](https://doitong.com/developers/models/workflow-utilities/blend-video.md) (`workflow-utilities/blend-video`): $0.001 / second of processing time
- [Workflow Utilities Interleave Video](https://doitong.com/developers/models/workflow-utilities/interleave-video.md) (`workflow-utilities/interleave-video`): $0.00017 / second of processing time
- [Workflow Utilities Reverse Video](https://doitong.com/developers/models/workflow-utilities/reverse-video.md) (`workflow-utilities/reverse-video`): $0.001 / second of processing time
- [Workflow Utilities Trim Video](https://doitong.com/developers/models/workflow-utilities/trim-video.md) (`workflow-utilities/trim-video`): $0.001 / second of processing time
- [Workflow Utilities Audio Compressor](https://doitong.com/developers/models/workflow-utilities/audio-compressor.md) (`workflow-utilities/audio-compressor`): $0.001 / second of processing time

## Links

- HTML page: https://doitong.com/developers/models/workflow-utilities/scale-video
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=workflow-utilities/scale-video
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/workflow-utilities/scale-video