DescribeCasterStreamUrl - ApsaraVideo Live - Alibaba Cloud Documentation Center

Usage notes

You can call the CreateCaster operation to create a production studio and then call this operation to query the streaming URLs of the production studio.

QPS limit

You can call this operation up to 5 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

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter

Type

Required

Example

Description

Action

String

Yes

DescribeCasterStreamUrl

The operation that you want to perform. Set the value to DescribeCasterStreamUrl.

CasterId

String

Yes

a2b8e671-2fe5-4642-a2ec-bf93880e****

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.

Response parameters

Parameter	Type	Example	Description
CasterId	String	a2b8e671-2fe5-4642-a2ec-bf93880e****	The ID of the production studio.
CasterStreams	Array of CasterStream		The information about the streams in the production studio.
CasterStream
OutputType	Integer	1	Indicates whether the output video is in preview mode or program mode. 0: preview mode 1: program mode
RtmpUrl	String	rtmp://live/caster/example.edu	The ingest URL in the Real-Time Messaging Protocol (RTMP) format.
SceneId	String	23ca74e0-aca3-4e7a-8561-9d96f525****	The ID of the scene.
StreamInfos	Array of StreamInfo		The information about the stream.
StreamInfo
OutputStreamUrl	String	http://out/caster/example.net	The streaming URL.
TranscodeConfig	String	lld	The transcoding configuration. Valid values: lsd: standard definition lld: low definition lud: ultra-high definition lhd: high definition
VideoFormat	String	flv	The format. Valid values: flv rtmp m3u8 artc Note The URL in the Alibaba Real-Time Communication (ARTC) format can be returned only if Real-Time Streaming (RTS) is enabled for the streaming domain of the production studio. For more information, see Enable RTS.
StreamUrl	String	http://live/caster/example.org	The URL of the output stream.
RequestId	String	16A96B9A-F203-4EC5-8E43-CB92E68F4CD8	The request ID.
Total	Integer	1	The number of the streams.

Examples

Sample requests

http(s)://[Endpoint]/?Action=DescribeCasterStreamUrl
&CasterId=a2b8e671-2fe5-4642-a2ec-bf93880e****
&<Common request parameters>

Sample success responses

XML format

HTTP/1.1 200 OK
Content-Type:application/xml

<DescribeCasterStreamUrlResponse>
    <CasterId>a2b8e671-2fe5-4642-a2ec-bf93880e****</CasterId>
    <CasterStreams>
        <OutputType>1</OutputType>
        <RtmpUrl>rtmp://live/caster/example.edu</RtmpUrl>
        <SceneId>23ca74e0-aca3-4e7a-8561-9d96f525****</SceneId>
        <StreamInfos>
            <OutputStreamUrl>http://out/caster/example.net</OutputStreamUrl>
            <TranscodeConfig>lld</TranscodeConfig>
            <VideoFormat>flv</VideoFormat>
        </StreamInfos>
        <StreamUrl>http://live/caster/example.org</StreamUrl>
    </CasterStreams>
    <RequestId>16A96B9A-F203-4EC5-8E43-CB92E68F4CD8</RequestId>
    <Total>1</Total>
</DescribeCasterStreamUrlResponse>

JSON format

HTTP/1.1 200 OK
Content-Type:application/json

{
  "CasterId" : "a2b8e671-2fe5-4642-a2ec-bf93880e****",
  "CasterStreams" : {
    "OutputType" : 1,
    "RtmpUrl" : "rtmp://live/caster/example.edu",
    "SceneId" : "23ca74e0-aca3-4e7a-8561-9d96f525****",
    "StreamInfos" : {
      "OutputStreamUrl" : "http://out/caster/example.net",
      "TranscodeConfig" : "lld",
      "VideoFormat" : "flv"
    },
    "StreamUrl" : "http://live/caster/example.org"
  },
  "RequestId" : "16A96B9A-F203-4EC5-8E43-CB92E68F4CD8",
  "Total" : 1
}

Error codes

For a list of error codes, see Service error codes.