Dynamically updates a watermark.
Operation description
Dynamically updating a watermark means replacing the watermark template ID during live streaming. Before you call this operation to update a watermark, you must prepare the watermark template ID that is used for replacement. The watermark template ID is specified by the TemplateId parameter of this operation. You can call the DescribeLiveStreamWatermarks operation to obtain available watermark template IDs.
QPS limit
You can call this operation up to 60 times per second per account. Requests that exceed this limit are dropped and you will experience service interruptions. We recommend that you take note of this limit when you call this operation.
Debugging
Authorization information
The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:
- Operation: the value that you can use in the Action element to specify the operation on a resource.
- Access level: the access level of each operation. The levels are read, write, and list.
- Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level,
All Resourcesis used in the Resource type column of the operation.
- Condition Key: the condition key that is defined by the cloud service.
- Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
| Operation | Access level | Resource type | Condition key | Associated operation |
|---|---|---|---|---|
| live:DynamicUpdateWaterMarkStreamRule | *Domain acs:cdn:*:{#accountId}:domain/{#DomainName} |
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| Domain | string | Yes | The main streaming domain. | pull.aliyundoc.com |
| App | string | Yes | The name of the application to which the live stream belongs. | liveApp**** |
| Stream | string | Yes | The name of the stream that contains the watermark. | liveStream**** |
| TemplateId | string | Yes | The watermark template ID. You can call the DescribeLiveStreamWatermarks operation to obtain available watermark template IDs. Note
The TemplateId parameter is used to replace the watermark template ID during live streaming.
| 749b7594-86d6-37b1-513b-e1e19845**** |
Response parameters
Examples
Sample success responses
JSONformat
{
"RequestId": "BE9407FF-F897-4DBD-338D-98A750AD805F"
}Error codes
| HTTP status code | Error code | Error message |
|---|---|---|
| 400 | InvalidParameters | %s |
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation |
|---|