Submits a snapshot job.
Operation description
- Only JPG images can be generated by calling this operation.
- Asynchronous mode: This operation may return a response before snapshots are captured. Snapshot jobs are queued in the background and asynchronously processed by ApsaraVideo Media Processing (MPS). If the Interval or Num parameter is set, the snapshot job is processed in asynchronous mode. For more information about FAQ about capturing snapshots, see FAQ about taking snapshots.
- Notifications: When you submit a snapshot job, the PipelineId parameter is required. An asynchronous message is sent only after the notification feature is enabled for the MPS queue.
QPS limit
You can call this operation up to 50 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 limit.
Debugging
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 Resourcesis 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 |
|---|---|---|---|---|
| mts:SubmitSnapshotJob | create |
|
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| Input | string | Yes | The information about the job input. The value must be a JSON object. You must add the Object Storage Service (OSS) bucket that stores the OSS object to be used as the job input as a media bucket in the MPS console. To add an OSS bucket as a media bucket, you can log on to the MPS console, choose Workflows > Media Buckets in the left-side navigation pane, and then click Add Bucket. After the OSS bucket is added as a media bucket, you must perform URL encoding for the OSS object. Example: Note
The OSS bucket must reside in the same region as your MPS service.
| {"Bucket":"example-bucket","Location":"example-location","Object":"example%2Ftest.flv"} |
| SnapshotConfig | string | Yes | The snapshot configurations. For more information, see the "AliyunSnapshotConfig" section of the Data types topic. Note
If you set the Interval parameter that is nested under SnapshotConfig, snapshots are captured at the specified intervals. The default value of the Interval parameter is 10, in seconds. If an input video is short but you specify large values for both the Num and Interval parameters, the actual number of snapshots captured may be smaller than the specified number. For example, if you set the Num parameter to 5 and the Interval parameter to 3 for a video of 10 seconds, the number of snapshots captured cannot reach 5.
| {"OutputFile":{"Bucket":"example-001","Location":"example-location","Object":"{Count}.jpg"},"Time":"5","Num":"10","Interval":"20"} |
| UserData | string | No | The custom data. The custom data can contain letters, digits, and hyphens (-) and be up to 1,024 bytes in size. The custom data cannot start with a special character. | testid-001 |
| PipelineId | string | No | The ID of the MPS queue to which you want to submit the snapshot job. To obtain the ID, you can log on to the MPS console and choose Global Settings > Pipelines in the left-side navigation pane. Note
Make sure that an available Message Service (MNS) topic is bound to the specified MPS queue. Otherwise, the relevant messages may fail to be sent as expected.
| dd3dae411e704030b921e52698e5**** |
Response parameters
Examples
Sample success responses
JSONformat
{
"RequestId": "19B6D8C5-A5DD-467A-B435-29D393C71E2D",
"SnapshotJob": {
"CreationTime": "2021-05-19T03:11:48Z",
"SnapshotConfig": {
"Time": "5",
"TileOut": {
"Padding": "0",
"Color": "black",
"CellSelStep": "3",
"CellHeight": "100",
"CellWidth": "100",
"Margin": "5",
"Columns": "10",
"IsKeepCellPic": "false",
"Lines": "10"
},
"Interval": "20",
"FrameType": "intra",
"Width": "8",
"Height": "8",
"OutputFile": {
"RoleArn": "acs:ram::1:role/testrole",
"Object": "test.png",
"Location": "example-location",
"Bucket": "example"
},
"Num": "10",
"TileOutputFile": {
"RoleArn": "acs:ram::1:role/testrole",
"Object": "example.png",
"Location": "example-location",
"Bucket": "example"
}
},
"State": "Snapshoting",
"Message": "The resource operated InputFile is bad",
"MNSMessageResult": {
"MessageId": "799454621135656C7F815F198A76****",
"ErrorMessage": "The resource operated InputFile is bad",
"ErrorCode": "InvalidParameter"
},
"Input": {
"RoleArn": "acs:ram::1:role/testrole",
"Object": "example.flv",
"Location": "example-location'",
"Bucket": "example"
},
"Count": "1",
"TileCount": "5",
"UserData": "testid-001",
"Code": "ResourceContentBad",
"PipelineId": "dd3dae411e704030b921e52698e5****",
"Id": "f4e3b9ba9f3840c39d6e288056f0****"
}
}Error codes
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation |
|---|---|---|
| 2024-04-24 | The response structure of the API has changed | View Change Details |
| 2024-04-10 | The internal configuration of the API is changed, but the call is not affected | View Change Details |