AddTrancodeSEI - ApsaraVideo Live - Alibaba Cloud Documentation Center

Usage notes

Obtain the streaming domain, and then call this operation to insert SEI to the transcoded streams. Make sure that the stream name is the name of the source stream. This way, the SEI is inserted to all the transcoded streams.

QPS limit

You can call this operation up to 6,000 times per minute 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	AddTrancodeSEI	The operation that you want to perform. Set the value to AddTrancodeSEI.
DomainName	String	Yes	example.com	The streaming domain.
AppName	String	Yes	liveApp****	The name of the application to which the live stream belongs.
StreamName	String	Yes	liveStream****	The name of the live stream. Note The value of this parameter must be the name of the source stream. This way, the SEI is inserted to all the transcoded streams.
Text	String	Yes	liveSei****	The SEI text. The SEI text can be up to 4,000 bytes in length.
Pattern	String	Yes	keyframe	Specifies whether to append the SEI to each keyframe or frame. Valid values: keyframe frame
Repeat	Integer	Yes	-1	The number of times that the SEI is repeatedly inserted. A value of -1 specifies infinite times.
Delay	Integer	Yes	100	The time period after which the SEI is inserted after the request is received. Unit: milliseconds.

Response parameters

Parameter	Type	Example	Description
RequestId	String	16A96B9A-F203-4E*****43-CB92E68F4CD8	The request ID.

Examples

Sample requests

http(s)://live.aliyuncs.com/?Action=AddTrancodeSEI
&AppName=liveApp****
&Delay=100
&DomainName=example.com
&Pattern=keyframe
&Repeat=-1
&StreamName=liveStream****
&Text=liveSei****
&<Common request parameters>

Sample success responses

XML format

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

<AddTrancodeSEIResponse>
    <RequestId>16A96B9A-F203-4E*****43-CB92E68F4CD8</RequestId>
</AddTrancodeSEIResponse>

JSON format

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

{
  "RequestId" : "16A96B9A-F203-4E*****43-CB92E68F4CD8"
}

Error codes

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