Google Cloud Video Intelligence API: Node.js Client

Google Cloud Video Intelligence API client for Node.js

Read more about the client libraries for Cloud APIs, including the older Google APIs Client Libraries, in Client Libraries Explained.

Table of contents:

Quickstart
Samples
Versioning
Contributing
License

Quickstart

Before you begin

Select or create a Cloud Platform project.
Enable billing for your project.
Enable the Google Cloud Video Intelligence API API.
Set up authentication with a service account so you can access the API from your local workstation.

Installing the client library

npm install @google-cloud/video-intelligence

Using the client library

  // Imports the Google Cloud Video Intelligence library
  const videoIntelligence = require('@google-cloud/video-intelligence');

  // Creates a client
  const client = new videoIntelligence.VideoIntelligenceServiceClient();

  // The GCS uri of the video to analyze
  const gcsUri = 'gs://nodejs-docs-samples-video/quickstart_short.mp4';

  // Construct request
  const request = {
    inputUri: gcsUri,
    features: ['LABEL_DETECTION'],
  };

  // Execute request
  const [operation] = await client.annotateVideo(request);

  console.log(
    'Waiting for operation to complete... (this may take a few minutes)'
  );

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

  // Gets annotations for video
  const annotations = operationResult.annotationResults[0];

  // Gets labels for video from its annotations
  const labels = annotations.segmentLabelAnnotations;
  labels.forEach(label => {
    console.log(`Label ${label.entity.description} occurs at:`);
    label.segments.forEach(segment => {
      segment = segment.segment;
      if (segment.startTimeOffset.seconds === undefined) {
        segment.startTimeOffset.seconds = 0;
      }
      if (segment.startTimeOffset.nanos === undefined) {
        segment.startTimeOffset.nanos = 0;
      }
      if (segment.endTimeOffset.seconds === undefined) {
        segment.endTimeOffset.seconds = 0;
      }
      if (segment.endTimeOffset.nanos === undefined) {
        segment.endTimeOffset.nanos = 0;
      }
      console.log(
        `\tStart: ${segment.startTimeOffset.seconds}` +
          `.${(segment.startTimeOffset.nanos / 1e6).toFixed(0)}s`
      );
      console.log(
        `\tEnd: ${segment.endTimeOffset.seconds}.` +
          `${(segment.endTimeOffset.nanos / 1e6).toFixed(0)}s`
      );
    });
  });

Samples

Samples are in the samples/ directory. The samples' README.md has instructions for running the samples.

Sample	Source Code	Try it
Analyze	source code
Analyze.v1p2beta1	source code
Quickstart	source code

The Google Cloud Video Intelligence API Node.js Client API Reference documentation also contains samples.

Versioning

This library follows Semantic Versioning.

This library is considered to be General Availability (GA). This means it is stable; the code surface will not change in backwards-incompatible ways unless absolutely necessary (e.g. because of critical security issues) or with an extensive deprecation period. Issues and requests against GA libraries are addressed with the highest priority.

More Information: Google Cloud Platform Launch Stages

Contributing

Contributions welcome! See the Contributing Guide.

License

Apache Version 2.0

See LICENSE

codediodeio/nodejs-video-intelligence