首页 > 解决方案 > 返回视频信息 Video Intelligence API

问题描述

我无法显示本地视频的信息,当我用视频示例进行测试时返回,但是当我尝试使用机器的文件时没有返回任何内容。

public String consultar() throws Throwable {
        requisicaoVideo("C:\\Users\\Web Designer\\Desktop\\Placas de Carros\\cat.mp4");
        return "analiseForenseVideos.xhtml";
    }
    public void requisicaoVideo(String filePath) throws Exception {
        try (VideoIntelligenceServiceClient client = VideoIntelligenceServiceClient.create()) {
            // Read file and encode into Base64
            Path path = Paths.get(filePath);
            byte[] data = Files.readAllBytes(path);
            byte[] encodedBytes = Base64.encodeBase64(data);
            System.out.println(encodedBytes + "Linha 74");
            AnnotateVideoRequest request = AnnotateVideoRequest.newBuilder()
                    .setInputContent(ByteString.copyFrom(encodedBytes)).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...");
            System.out.println(response.get().getAnnotationResultsList() + "Linha 83");
            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());
                    }
                }

标签: javagoogle-apigoogle-cloud-platformvideo-intelligence-api

解决方案


我是 Google Cloud 支持人员。感谢您报告此问题。我一直在做一些测试,并在文件中发现了某种analyzeLabelsFile功能错误。Detect.java

如果您让作业运行很长时间,它可能会完成(对我来说,从 Google Cloud Storage 导入文件需要 30 秒,使用本地文件需要 16 分钟),但无论如何不提供信息,只是“位置:”消息结束。

我已将有关此问题的所有相关信息(如何重现问题、可能的原因等)发送给 Google Video Intelligence API 团队,以便他们查看。

我还没有找到本地文件的解决方法,但是您可以通过其 URL 和analyzeLabels函数在 GCS 中处理该文件。


推荐阅读