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());
}
}