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Features & Server APIs
  • On-Cloud Recording
  • Relay to CDN
  • RTMP Streaming with TRTC
  • Event Callbacks
    • Event Callbacks
    • Relay to CDN Callback
    • Verify Signature Example
  • Sending and Receiving Messages
  • Access Management
    • Overview
    • Manageable Resources and Actions
    • Preset Policies
    • Custom Policies
  • Enabling Advanced Permission Control
  • How to push stream to TRTC room with OBS WHIP
  • Server APIs
    • API Category
    • History
    • Making API Request
      • Request Structure
      • Common Params
      • Signature v3
      • Signature
      • Responses
    • Room Management APIs
      • SetUserBlockedByStrRoomId
      • SetUserBlocked
      • RemoveUser
      • DismissRoom
      • RemoveUserByStrRoomId
      • DismissRoomByStrRoomId
    • Call Quality Monitoring APIs
      • DescribeRoomInfo
      • DescribeUserEvent
      • DescribeCallDetailInfo
      • DescribeUserInfo
      • DescribeScaleInfo
    • Pull Stream Relay Related Interface
      • StartStreamIngest
      • StopStreamIngest
      • DescribeStreamIngest
    • On-cloud Recording APIs
      • CreateCloudRecording
      • DescribeCloudRecording
      • ModifyCloudRecording
      • DeleteCloudRecording
    • Stream Mixing and Relay APIs
      • UpdatePublishCdnStream
      • StartPublishCdnStream
      • StopPublishCdnStream
    • Usage Statistics APIs
      • DescribeTrtcUsage
      • DescribeRecordingUsage
      • DescribeMixTranscodingUsage
      • DescribeRelayUsage
      • DescribeTrtcRoomUsage
    • Data Types
    • Error Codes
    • Appendix
      • Event ID Mapping Table
Features & Server APIs


1. API Description

Domain name for API request:

This API is used to modify a recording task. It works only when a task is in progress. If the task has already ended when this API is called, an error will be returned. You need to specify all the parameters for each request instead of just the ones you want to modify.

A maximum of 20 requests can be initiated per second for this API.

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter NameRequiredTypeDescription
ActionYesStringCommon Params. The value used for this API: ModifyCloudRecording.
VersionYesStringCommon Params. The value used for this API: 2019-07-22.
RegionYesStringCommon Params. For more information, please see the list of regions supported by the product. This API only supports: ap-beijing, ap-guangzhou, ap-mumbai, ap-shanghai, ap-singapore.
SdkAppIdYesIntegerThe SDKAppID of the room whose streams are recorded.
TaskIdYesStringThe unique ID of the recording task, which is returned after recording starts successfully.
MixLayoutParamsNoMixLayoutParamsThe new stream mixing layout to use.
SubscribeStreamUserIdsNoSubscribeStreamUserIdsThe allowlist/blocklist for stream subscription.

3. Output Parameters

Parameter NameTypeDescription
TaskIdStringThe task ID assigned by the recording service, which uniquely identifies a recording process and becomes invalid after a recording task ends.
RequestIdStringThe unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Modifying an on-cloud recording task

This example shows you how to subscribe to the video and audio streams of user 123 and 456 and customize the layout for the recording task whose task ID is xx under the application whose SDKAppID is 1234.

Input Example

Content-Type: application/json
X-TC-Action: ModifyCloudRecording
<Common request parameters>

    "SubscribeStreamUserIds": {
        "SubscribeVideoUserIds": [
        "SubscribeAudioUserIds": [
    "TaskId": "xx",
    "SdkAppId": 1234,
    "MixLayoutParams": {
        "MixLayoutMode": 4,
        "MixLayoutList": [
                "Top": 100,
                "UserId": "123",
                "Height": 100,
                "Width": 100,
                "Left": 100
                "Top": 200,
                "UserId": "456",
                "Height": 100,
                "Width": 100,
                "Left": 200

Output Example

    "Response": {
        "TaskId": "5df46eb2-8e4b-490e-9c3c-dbd3b84faefc",
        "RequestId": "71993312-6ab8-4768-9124-118e0a20c45f"

5. Developer Resources


TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error CodeDescription
AuthFailureCAM signature/authentication error.
AuthFailure.UnRealNameAuthenticatedIdentity verification has not been completed, so this operation is not allowed.
AuthFailure.UnauthorizedOperationCAM authentication failed.
AuthFailure.UnsupportedOperationUnsupported operation.
FailedOperationOperation failed.
FailedOperation.CRUnsupportMethodUnsupported on-cloud recording method.
InternalError.CRInternalErrorOn-cloud recording internal error.
InvalidParameter.OutOfRangeParameter value is out of range.
MissingParameter.RoomIdRoomId is missing.
MissingParameter.SdkAppIdSdkAppId is missing.
MissingParameter.TaskIdTaskId parameter missing.
MissingParameter.UserIdMissing UserId parameter.
ResourceNotFoundThe resource does not exist.