The video super-resolution online service enhances the clarity and resolution of input videos using a video super-resolution model, delivering higher-resolution video output. Applicable to scenarios such as restoration of old films, material enhancement, 4K production, and video clarity enhancement.

Operator ID: las_video_super_resolution

Application scenarios #

• Restoration of old films / low-resolution stock videos: Batch super-resolution processing for historical stock or low-bitrate videos enables one-click upgrades to high resolution; restores the original HD viewing experience, eliminates blur, noise, and artifacts, and revitalizes old films.
• Batch enhancement of UGC / live streaming recordings: Scalable super-resolution for UGC content or live broadcast recordings without re-acquisition; achieves significant quality improvement at low cost, enables large-scale production, and greatly reduces manual restoration costs.
• AI generated video post-processing: Generate videos at low resolution for content selection, then apply super-resolution to target materials for quality enhancement; significantly reduces computing power consumption during the generation phase, achieving final high-quality video output at lower cost.

Core capabilities #

• Flexible and efficient resolution adjustment capability.
  • Supports specifying target resolution via target_width.
  • Automatically maintains video orientation and derives target resolution.
• Stable results.
  • Texture reconstruction using the LAS deep learning model to avoid blur, halos, noise, and generative artifacts.

Effect demonstration #

Supported regions #

• Beijing: cn-beijing

Operator performance #

Input requirements #

Output requirements #

• Billing standards

  Sub-item	Billing standards description
  Billing item	Billing is calculated based on the duration of the output video. During billing, the video duration is adjusted using a conversion coefficient based on the output video frame rate.
  Billing type	Pay-as-you-go, unit: CNY/minute, billed hourly based on actual usage.
  Unit price	The unit price depends on the resolution you select for the super-resolved video.

• Billing details
  Billing formula: Total cost = unit price * billing usage = unit price * (video duration * duration conversion coefficient)

  Sub-scenario	Unit price	Duration conversion coefficient (per thousand tokens)
  Output video resolution ≤ 720p	2.2 CNY/minute	Different output video frame rates are converted to different coefficients: Actual frame rate ≤ 30 fps: coefficient is "1" 30 fps < actual frame rate ≤ 60 fps: coefficient is "2" 60 fps < actual frame rate ≤ 90 fps: coefficient is "3" 90 fps < actual frame rate ≤ 120 fps: coefficient is "4"
  720p < output video resolution ≤ 1080p	6.6 CNY/minute
  1080p < output video resolution ≤ 1440p	11 CNY/minute
  1440p < output video resolution	24.2 CNY/minute

• Billing example
  When the actual output video resolution is 720p, the video duration is 10 minutes, and the frame rate is 60 fps:

  • The frame rate coefficient is: 2.
  • The actual cost is:
    Cost = unit price * (video duration * coefficient) = 2.2 CNY/minute * (10 minutes * 2) = 44 CNY

API invocation instructions #

The API for this operator is an asynchronous task interface. You need to submit tasks via the submit interface, then use the Poll interface to obtain task status and retrieve the operator processing results. Meanwhile, this operator supports asynchronous callback capability (Callback). You can set the callback parameter callback.url when initiating the operator task. LAS will send HTTP POST notifications to this URL. For guidance on using asynchronous callbacks, refer to Asynchronous callback API.

Submit interface #

API description #

Call the Submit API to submit an asynchronous task. After a successful submission, the API returns a task ID. You can use this task ID to query subsequent processing status and results.

Request parameters #

Response parameters #

Request example #

# Please set OUTPUT_TOS_PATH to a tos path that is writable by this account
export OUTPUT_TOS_PATH="tos://path/to/sr_results"

curl --location "https://operator.las.ap-southeast-1.volces.com/api/v1/submit" --header "Content-Type: application/json" --header "Authorization: Bearer $LAS_API_KEY" --data '{
    "operator_id": "las_video_super_resolution",
    "operator_version": "v1",
    "data": {
        "video_url": "https://${LAS_TOS_BUCKET}.${TOS_ENDPOINT}/operator_cards_serving/public/${LAS_ENVIRONMENT}/las_video_super_resolution/v1/sample_input.mp4",
        "output_tos_path": "$OUTPUT_TOS_PATH",
        "target_width": 1920
    }
}'

Response example #

{
  "metadata": {
    "task_id": "task-20260413191000-abc123",
    "task_status": "PENDING",
    "business_code": "0",
    "error_msg": ""
  }
}

Error code #

Poll API #

API description #

Call the Poll API to query the execution status and results of the video super-resolution asynchronous task. You need to provide task_id. When the task status is COMPLETED, you can obtain result information (such as the TOS address of the output video) in the returned data.

Request parameters #

Response parameters #

Request example #

curl --location "https://operator.las.ap-southeast-1.volces.com/api/v1/poll" --header "Content-Type: application/json" --header "Authorization: Bearer $LAS_API_KEY" --data '{
    "operator_id": "las_video_super_resolution",
    "operator_version": "v1",
    "task_id": "task-20260413191000-abc123"
}'

Response example #

{
    "metadata": {
        "task_id": "task-20260413191000-abc123",
        "task_status": "COMPLETED",
        "submit_time": "2026-07-21T16:04:06+08:00",
        "end_time": "2026-07-21T16:04:06+08:00",
        "business_code": "0",
        "error_msg": ""
    },
    "data": {
        "output_video_tos_url": "tos://path/to/sr_results/sample_output_1920x1080.mp4"
    }
}

Error code #