Text prompt
Text description for generating the video, no more than 2000 characters in length.
Note: When template= subject_3 or pubg_winner_hit, the prompt is not required

Random seed
If not passed or set to 0 by default, a random number will be used instead
If set manually, the specified seed will be used

Aspect ratio
Default 16:9, available values are as follows: 16:9, 9:16
* Different templates support different available values; see the template description for details

Parameter exclusive to the Exotic Princess effect
Only available when template is exotic_princess, available values are as follows:
Default: auto, options: denmark,uk,africa,china,mexico,switzerland,russia,italy,korea,thailand,india,japan

Parameter exclusive to the Walk with Beasts effect
Only available when template is beast_companion, available values are as follows:
Default auto, options: bear,tiger,elk,snake,lion,wolf

Whether to add background music to the generated video.
Default: false, available values true, false

• When set to true, the system will automatically select suitable music from the preset BGM library and add it; if not passed or false, no BGM will be added.
• BGM duration is not limited; the system automatically adapts it to the video duration

Pass-through parameter
Not processed in any way, used only for data transmission
Note: Up to 1,048,576 characters

Whether to add a watermark

• true: add watermark;
• false: do not add watermark;
  Note 1: The watermark content is currently fixed, content generated by AI, not added by default
  Note 2: You can query and retrieve the watermarked video content via the watermarked_url parameter; see the Query Task API for details

Watermark position, indicates where the watermark appears on the image, options are:
1: top left
2: top right
3: bottom right
4: bottom left
Default: 3

Watermark content, here referring to an image URL
If not passed, the default watermark is used: Content generated by AI

Metadata identifier, a JSON-format string, a pass-through field. You may use a custom format or the example format below:
{
"Label": "your_label",
"ContentProducer": "your_content_producer",
"ContentPropagator": "your_content_propagator",
"ProduceID": "your_product_id",
"PropagateID": "your_propagate_id",
"ReservedCode1": "your_reserved_code1",
"ReservedCode2": "your_reserved_code2"
}
If this parameter is empty, the metadata identifier generated by Vidu is used by default

Callback protocol
You need to actively set callback_url when creating the task; the request method is POST. When the status of the video generation task changes, Vidu will send a callback request containing the task's latest status to this address. The content structure of the callback request is consistent with the response body of the Query Task API
The "status" returned by the callback includes the following states:

• processing Task is processing
• success Task completed (if sending fails, callback is retried three times)
• failed Task failed (if sending fails, callback is retried three times)
  Vidu uses a callback signature algorithm for authentication; see Callback Signature Algorithm for details

The prompt parameter used in this call

The image parameter used in this call

The random seed parameter used in this call

The aspect ratio parameter used in this call

The background music parameter used in this call

The pass-through parameter passed in this call

Whether a watermark was used in this call

Number of credits used in this call

Task creation time

Whether BGM was used in this task call

Whether off-peak mode was used in this task call