public static void analyzeLabelsFile()

in video/src/main/java/video/Detect.java [187:269]
65 lines of code
11 McCabe index (conditional complexity)

  public static void analyzeLabelsFile(String filePath) throws Exception {
    // [START video_analyze_labels]
    // Instantiate a com.google.cloud.videointelligence.v1.VideoIntelligenceServiceClient
    try (VideoIntelligenceServiceClient client = VideoIntelligenceServiceClient.create()) {
      // Read file and encode into Base64
      Path path = Paths.get(filePath);
      byte[] data = Files.readAllBytes(path);

      AnnotateVideoRequest request =
          AnnotateVideoRequest.newBuilder()
              .setInputContent(ByteString.copyFrom(data))
              .addFeatures(Feature.LABEL_DETECTION)
              .build();
      // Create an operation that will contain the response when the operation completes.
      OperationFuture<AnnotateVideoResponse, AnnotateVideoProgress> response =
          client.annotateVideoAsync(request);

      System.out.println("Waiting for operation to complete...");
      for (VideoAnnotationResults results : response.get().getAnnotationResultsList()) {
        // process video / segment level label annotations
        System.out.println("Locations: ");
        for (LabelAnnotation labelAnnotation : results.getSegmentLabelAnnotationsList()) {
          System.out.println("Video label: " + labelAnnotation.getEntity().getDescription());
          // categories
          for (Entity categoryEntity : labelAnnotation.getCategoryEntitiesList()) {
            System.out.println("Video label category: " + categoryEntity.getDescription());
          }
          // segments
          for (LabelSegment segment : labelAnnotation.getSegmentsList()) {
            double startTime =
                segment.getSegment().getStartTimeOffset().getSeconds()
                    + segment.getSegment().getStartTimeOffset().getNanos() / 1e9;
            double endTime =
                segment.getSegment().getEndTimeOffset().getSeconds()
                    + segment.getSegment().getEndTimeOffset().getNanos() / 1e9;
            System.out.printf("Segment location: %.3f:%.2f\n", startTime, endTime);
            System.out.println("Confidence: " + segment.getConfidence());
          }
        }

        // process shot label annotations
        for (LabelAnnotation labelAnnotation : results.getShotLabelAnnotationsList()) {
          System.out.println("Shot label: " + labelAnnotation.getEntity().getDescription());
          // categories
          for (Entity categoryEntity : labelAnnotation.getCategoryEntitiesList()) {
            System.out.println("Shot label category: " + categoryEntity.getDescription());
          }
          // segments
          for (LabelSegment segment : labelAnnotation.getSegmentsList()) {
            double startTime =
                segment.getSegment().getStartTimeOffset().getSeconds()
                    + segment.getSegment().getStartTimeOffset().getNanos() / 1e9;
            double endTime =
                segment.getSegment().getEndTimeOffset().getSeconds()
                    + segment.getSegment().getEndTimeOffset().getNanos() / 1e9;
            System.out.printf("Segment location: %.3f:%.2f\n", startTime, endTime);
            System.out.println("Confidence: " + segment.getConfidence());
          }
        }

        // process frame label annotations
        for (LabelAnnotation labelAnnotation : results.getFrameLabelAnnotationsList()) {
          System.out.println("Frame label: " + labelAnnotation.getEntity().getDescription());
          // categories
          for (Entity categoryEntity : labelAnnotation.getCategoryEntitiesList()) {
            System.out.println("Frame label category: " + categoryEntity.getDescription());
          }
          // segments
          for (LabelSegment segment : labelAnnotation.getSegmentsList()) {
            double startTime =
                segment.getSegment().getStartTimeOffset().getSeconds()
                    + segment.getSegment().getStartTimeOffset().getNanos() / 1e9;
            double endTime =
                segment.getSegment().getEndTimeOffset().getSeconds()
                    + segment.getSegment().getEndTimeOffset().getNanos() / 1e9;
            System.out.printf("Segment location: %.3f:%.2f\n", startTime, endTime);
            System.out.println("Confidence: " + segment.getConfidence());
          }
        }
      }
    }
    // [END video_analyze_labels]
  }