java - 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());
}
}
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。
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