Function analyzeTextGCS

video-intelligence/analyze.js:320–372

(gcsUri)

}

async function analyzeTextGCS(gcsUri) {
  //gcsUri - GCS URI of the video to analyze, e.g. gs://my-bucket/my-video.mp4
  //[START video_detect_text_gcs]
  // Imports the Google Cloud Video Intelligence library
  const Video = require('@google-cloud/video-intelligence');
  // Creates a client
  const video = new Video.VideoIntelligenceServiceClient();

  /**
   * TODO(developer): Uncomment the following line before running the sample.
   */
  // const gcsUri = 'GCS URI of the video to analyze, e.g. gs://my-bucket/my-video.mp4';

  const request = {
    inputUri: gcsUri,
    features: ['TEXT_DETECTION'],
  };
  // Detects text in a video
  const [operation] = await video.annotateVideo(request);
  const results = await operation.promise();
  console.log('Waiting for operation to complete...');
  // Gets annotations for video
  const textAnnotations = results[0].annotationResults[0].textAnnotations;
  textAnnotations.forEach(textAnnotation => {
    console.log(`Text ${textAnnotation.text} occurs at:`);
    textAnnotation.segments.forEach(segment => {
      const time = segment.segment;
      console.log(
        ` Start: ${time.startTimeOffset.seconds || 0}.${(
          time.startTimeOffset.nanos / 1e6
        ).toFixed(0)}s`
      );
      console.log(
        ` End: ${time.endTimeOffset.seconds || 0}.${(
          time.endTimeOffset.nanos / 1e6
        ).toFixed(0)}s`
      );
      console.log(` Confidence: ${segment.confidence}`);
      segment.frames.forEach(frame => {
        const timeOffset = frame.timeOffset;
        console.log(
          `Time offset for the frame: ${timeOffset.seconds || 0}` +
            `.${(timeOffset.nanos / 1e6).toFixed(0)}s`
        );
        console.log('Rotated Bounding Box Vertices:');
        frame.rotatedBoundingBox.vertices.forEach(vertex => {
          console.log(`Vertex.x:${vertex.x}, Vertex.y:${vertex.y}`);
        });
      });
    });
  });
  // [END video_detect_text_gcs]
}

async function analyzeObjectTrackingGCS(gcsUri) {
  //gcsUri - GCS URI of the video to analyze, e.g. gs://my-bucket/my-video.mp4