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ApsaraVideo Live:UpdateLiveStreamTranscode

Last Updated:Dec 16, 2025

Updates a default transcoding configuration.

Operation description

Before updating a transcoding configuration, obtain a Customer Master Key (CMK) ID from Key Management Service (KMS). This operation supports only standard transcoding templates and Narrowband HD™ transcoding templates.

QPS limits

This operation is limited to 30 queries per second (QPS) per account.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

live:UpdateLiveStreamTranscode

create

*Domain

acs:cdn:*:{#accountId}:domain/{#DomainName}

None None

Request parameters

Parameter

Type

Required

Description

Example

RegionId

string

No

The region ID.

cn-shanghai

Domain

string

Yes

The streaming domain. This parameter cannot be modified.

example.com

App

string

Yes

The AppName of the live stream. This parameter cannot be modified.

liveApp****

Template

string

Yes

The transcoding template name. This parameter cannot be modified.

lsd

EncryptParameters

string

No

The encryption settings, formatted as a JSON string.

  • EncryptType: The encryption type. Set the value to aliyun.

  • KmsKeyID: The ID of the customer master key (CMK) in Key Management Service (KMS).

  • KmsKeyExpireInterval: The key rotation period. Unit: seconds. Valid values: 60 to 3600.

Note

When you use Digital Rights Management (DRM) encryption, you cannot modify KmsKeyID.

{"EncryptType": "aliyun", "KmsKeyID":"afce5722-81d2-43c3-9930-7601da11****","KmsKeyExpireInterval":"3600"}

Lazy

string

No

Specifies whether to enable on-demand transcoding. Valid values:

  • yes: Transcoding only starts when the first viewer requests this transcoded stream.

  • no: Transcoding starts immediately after the stream is published.

yes

Response elements

Element

Type

Description

Example

object

The request ID.

RequestId

string

The request ID.

16A96B9A-F203-4EC5-8E43-CB92E68F4CD8

Examples

Success response

JSON format

{
  "RequestId": "16A96B9A-F203-4EC5-8E43-CB92E68F4CD8"
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidParameters %s Please check and try again later. Exception parameter exists, please check and try again.
400 ConfigAlreadyExists %s Please check and try again later. Configuration already exists, please check and try again.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.