v1beta2.VideoIntelligenceServiceClient

const videoIntelligence = require('@google-cloud/video-intelligence');

const client = new videoIntelligence.v1beta2.VideoIntelligenceServiceClient({
  // optional auth parameters.
});

const inputUri = 'gs://demomaker/cat.mp4';
const featuresElement = 'LABEL_DETECTION';
const features = [featuresElement];
const request = {
  inputUri: inputUri,
  features: features,
};

// Handle the operation using the promise pattern.
client.annotateVideo(request)
  .then(responses => {
    const [operation, initialApiResponse] = responses;

    // Operation#promise starts polling for the completion of the LRO.
    return operation.promise();
  })
  .then(responses => {
    const result = responses[0];
    const metadata = responses[1];
    const finalApiResponse = responses[2];
  })
  .catch(err => {
    console.error(err);
  });

const inputUri = 'gs://demomaker/cat.mp4';
const featuresElement = 'LABEL_DETECTION';
const features = [featuresElement];
const request = {
  inputUri: inputUri,
  features: features,
};

// Handle the operation using the event emitter pattern.
client.annotateVideo(request)
  .then(responses => {
    const [operation, initialApiResponse] = responses;

    // Adding a listener for the "complete" event starts polling for the
    // completion of the operation.
    operation.on('complete', (result, metadata, finalApiResponse) => {
      // doSomethingWith(result);
    });

    // Adding a listener for the "progress" event causes the callback to be
    // called on any change in metadata when the operation is polled.
    operation.on('progress', (metadata, apiResponse) => {
      // doSomethingWith(metadata)
    });

    // Adding a listener for the "error" event handles any errors found during polling.
    operation.on('error', err => {
      // throw(err);
    });
  })
  .catch(err => {
    console.error(err);
  });

const inputUri = 'gs://demomaker/cat.mp4';
const featuresElement = 'LABEL_DETECTION';
const features = [featuresElement];
const request = {
  inputUri: inputUri,
  features: features,
};

// Handle the operation using the await pattern.
const [operation] = await client.annotateVideo(request);

const [response] = await operation.promise();