You can use the video snapshot feature to capture snapshots of a specific size at specific points in time of a video. The snapshots are used in scenarios such as video thumbnails, sprites, and progress bar thumbnails. You can specify the points in time when snapshots are captured, the interval between two consecutive snapshots, the number of snapshots to be captured, the types of snapshots to be captured, and whether to compose multiple snapshots into one image sprite. You can submit snapshot jobs in the ApsaraVideo Media Processing (MPS) console or by using the API or SDKs. This topic provides an example on how to use MPS SDK for Node.js V2.0 to capture snapshots.
Sample code
'use strict';
const Mts20140618 = require('@alicloud/mts20140618');
const OpenApi = require('@alicloud/openapi-client');
const Util = require('@alicloud/tea-util');
const Tea = require('@alicloud/tea-typescript');
class Client {
/**
* Use your AccessKey ID and AccessKey secret to initialize a client.
* @return Client
* @throws Exception
*/
static createClient() {
let config = new OpenApi.Config({
// Required. Make sure that the ALIBABA_CLOUD_ACCESS_KEY_ID environment variable is configured.
accessKeyId: process.env['ALIBABA_CLOUD_ACCESS_KEY_ID'],
// Required. Make sure that the ALIBABA_CLOUD_ACCESS_KEY_SECRET environment variable is configured.
accessKeySecret: process.env['ALIBABA_CLOUD_ACCESS_KEY_SECRET'],
});
config.endpoint = `mts.cn-qingdao.aliyuncs.com`;
return new Mts20140618.default(config);
}
static async main(args) {
let client = Client.createClient();
let submitSnapshotJobRequest = new Mts20140618.SubmitSnapshotJobRequest({
// The job input.
input: '{"Bucket":"example-bucket","Location":"example-location","Object":"example%2Ftest.flv"}',
// The configuration of the snapshot job.
snapshotConfig: '{"OutputFile":{"Bucket":"example-001","Location":"example-location","Object":"{Count}.jpg"},"Time":"5","Num":"10","Interval":"20"}',
// The user-defined data.
userData: 'testid-001',
// The ID of the MPS queue.
pipelineId: 'dd3dae411e704030b921e52698e5****',
});
let runtime = new Util.RuntimeOptions({ });
try {
// Write your own code to display the response of the API operation if necessary.
await client.submitSnapshotJobWithOptions(submitSnapshotJobRequest, runtime);
} catch (error) {
// Handle exceptions with caution in actual business scenarios and never ignore exceptions in your project. In this example, error messages are displayed for reference only.
// The error message.
console.log(error.message);
// The URL of the corresponding error diagnostics page.
console.log(error.data["Recommend"]);
Util.default.assertAsString(error.message);
}
}
}
exports.Client = Client;
Client.main(process.argv.slice(2));