DescribeCasterSceneAudio - ApsaraVideo Live - Alibaba Cloud Documentation Center

Queries the audio configurations of a scene.

Operation description

Usage notes

You can call the CreateCaster operation to create a production studio and then call this operation to query the audio configurations of a scene in the production studio.

QPS limit

You can call this operation up to 15 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. For more information, see QPS limits.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Debug

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 Resources is 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:DescribeCasterSceneAudio	get	Caster `acs:live::{#accountId}:caster/{#CasterId}`	none	none

Request parameters

Parameter	Type	Required	Description	Example
CasterId	string	Yes	The ID of the production studio. If the production studio was created by calling the CreateCaster operation, check the value of the response parameter CasterId to obtain the ID. If the production studio was created by using the ApsaraVideo Live console, obtain the ID on the Production Studio Management page. To go to the page, log on to the ApsaraVideo Live console and click Production Studios in the left-side navigation pane. Note You can find the ID of the production studio in the Instance Name column.	97df6b7f-3490-47d2-ac50-88338765****
SceneId	string	Yes	The ID of the scene.	97df6b7f-3490-47d2-ac50-88339087****

Response parameters

Parameter	Type	Description	Example
	object
AudioLayers	array<object>	The configurations of the audio layers.
AudioLayer	object
FixedDelayDuration	integer	The fixed delay of the audio layer. Unit: milliseconds.	2000
ValidChannel	string	The sound channel type of the audio layer. Valid values: left: the left channel right: the right channel all (default): both the left and right channels	all
VolumeRate	float	The volume of the audio layer.	1
CasterId	string	The ID of the production studio. You can specify the ID in a request to start a scene in the production studio.	97df6b7f-3490-47d2-ac50-88338765****
FollowEnable	integer	The audio mode. By default, the audio follows video (AFV) mode is used. Valid values: 0: the audio mixing mode 1: the AFV mode	1
MixList	array
LocationId	string	The location IDs of the audio layers, which are listed in the same order as their corresponding audio layers.	RV01
RequestId	string	The request ID.	98745637-3490-47d2-ac50-883387567098

Examples

Sample success responses

JSONformat

{
  "AudioLayers": {
    "AudioLayer": [
      {
        "FixedDelayDuration": 2000,
        "ValidChannel": "all",
        "VolumeRate": 1
      }
    ]
  },
  "CasterId": "97df6b7f-3490-47d2-ac50-88338765****",
  "FollowEnable": 1,
  "MixList": {
    "LocationId": [
      "RV01"
    ]
  },
  "RequestId": "98745637-3490-47d2-ac50-883387567098"
}

Error codes

HTTP status code	Error code	Error message
400	InvalidCasterId.Malformed	%s
401	IllegalOperation	%s
404	InvalidCaster.NotFound	%s
404	InvalidScene.NotFound	%s
500	InternalError	%s

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation

No change history