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Workflow Utilities Scale Video

Integrate

Model id workflow-utilities/scale-video
# 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": "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"

Up to $3.60 per run charged by actual usage, the rest is refunded Run it on this page

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Utility · Video

Your first result goes here

Build a request below and run it with your API key. Outputs are copied to our storage, kept forever or 7 days for free.

Build a request

Controls are generated from the model schema. The code and the price update as you change them.

•required video_url
Drop a file, or

Provide the video to be scaled or resized by URL, using even-numbered dimensions for both height and width to meet video codec requirements.

Advanced mode · pad_color · codec · preset · width · height · crf
mode default stretch

Resizing method: `stretch` forces the requested dimensions and may change the aspect ratio. Both `pad` and `crop` retain the aspect ratio: `pad` fits the video inside the requested dimensions and fills unused space with the selected color (letterboxing/pillarboxing). `crop` fills the requested dimensions, then crops centrally to match the exact size.

pad_color default black

Color used for padding in `pad` mode; other modes ignore it.

codec default libx264

Choose the encoding codec: use libx265 (H.265/HEVC) for better compression, or libx264 (H.264) for broad compatibility.

preset default fast

Preset controlling encoding speed. Choosing a slower preset improves compression but increases encoding time.

Output width in pixels, usable alone or alongside height; at least one dimension is required. With width alone, the height is derived automatically without changing the aspect ratio.

Output height in pixels, usable alone or alongside width; at least one dimension is required. With height alone, the width is derived automatically without changing the aspect ratio.

default 18

Constant Rate Factor controlling quality across the range 0–51, with 18 generally appearing lossless for most content. Reducing the setting improves quality but increases file size.

POST /run/workflow-utilities/scale-video?wait=20 quote → $3.60
# 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": "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"

Run this request

Your key stays in this browser: it is sent only to the Doitong API and saved (localStorage) only if you tick Remember. Get an API key

About Workflow Utilities Scale Video

Rescales a video to a target `width` (up to 7680) and/or `height` (up to 4320); if only one is given, the other follows the aspect ratio. `mode` can stretch, pad (with a chosen color) or crop. Encode with libx264 or libx265, a speed preset from ultrafast to slow, and `crf` from 0 to 51. Returns the original and new dimensions.

Parameters

Send either the canonical name or the native name, not both. Canonical names

NameType DefaultAllowed Description
video_urlrequired video
Typeurl · video
Provide the video to be scaled or resized by URL, using even-numbered dimensions for both height and width to meet video codec requirements.
widthoptional
Typeinteger | null
2 – 7,680
Output width in pixels, usable alone or alongside height; at least one dimension is required. With width alone, the height is derived automatically without changing the aspect ratio.
heightoptional
Typeinteger | null
2 – 4,320
Output height in pixels, usable alone or alongside width; at least one dimension is required. With height alone, the width is derived automatically without changing the aspect ratio.
modeoptional
Typeenum
Defaultstretch
stretchpadcrop
Resizing method: `stretch` forces the requested dimensions and may change the aspect ratio. Both `pad` and `crop` retain the aspect ratio: `pad` fits the video inside the requested dimensions and fills unused space with the selected color (letterboxing/pillarboxing). `crop` fills the requested dimensions, then crops centrally to match the exact size.
pad_coloroptional
Typeenum
Defaultblack
blackwhiteredgreenbluegray
Color used for padding in `pad` mode; other modes ignore it.
codecoptional
Typeenum
Defaultlibx264
libx264libx265
Choose the encoding codec: use libx265 (H.265/HEVC) for better compression, or libx264 (H.264) for broad compatibility.
presetoptional
Typeenum
Defaultfast
ultrafastfastmediumslow
Preset controlling encoding speed. Choosing a slower preset improves compression but increases encoding time.
crfoptional
Typeinteger
Default18
0 – 51
Constant Rate Factor controlling quality across the range 0–51, with 18 generally appearing lossless for most content. Reducing the setting improves quality but increases file size.
required Canonical name, also accepted

File parameters take a public https:// URL, a data: URI up to 10 MB, or the file_url of an upload. Files

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "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"
  }
}
Your files, your choiceEvery outputs[].url is a copy on our storage: kept forever (paid per GB-month) or 7 days for free, by your account setting or ?storage=.
Same shape on every modeltype, url, content_type, width, height and duration, for images, video and audio alike. output is the model’s own result object.
Fields of output
video
object {url, content_type, file_name, file_size}Video after scaling or resizing.
original_width
integerOriginal video's width, measured in pixels.
original_height
integerOriginal video's height, measured in pixels.
scaled_width
integerOutput video's width, measured in pixels.
scaled_height
integerOutput video's height, measured in pixels.

More models: Video to Video

For AI agents: this page as Markdown is at https://doitong.com/developers/models/workflow-utilities/scale-video.md. All models and guides: https://doitong.com/developers/llms.txt