public void AnnotateVideo()
{
// Sample: AnnotateVideo
// Additional: AnnotateVideo(string, IEnumerable<Feature>, CallSettings)
VideoIntelligenceServiceClient client = VideoIntelligenceServiceClient.Create();
Operation <AnnotateVideoResponse, AnnotateVideoProgress> operation = client.AnnotateVideo(
"gs://cloud-samples-data/video/gbikes_dinosaur.mp4",
new[] { Feature.LabelDetection });
Operation <AnnotateVideoResponse, AnnotateVideoProgress> resultOperation = operation.PollUntilCompleted();
VideoAnnotationResults result = resultOperation.Result.AnnotationResults[0];
foreach (LabelAnnotation label in result.ShotLabelAnnotations)
{
Console.WriteLine($"Label entity: {label.Entity.Description}");
Console.WriteLine("Frames:");
foreach (LabelSegment segment in label.Segments)
{
Console.WriteLine($" {segment.Segment.StartTimeOffset}-{segment.Segment.EndTimeOffset}: {segment.Confidence}");
}
}
// End sample
Assert.Contains(result.ShotLabelAnnotations, lab => lab.Entity.Description == "dinosaur");
}
public void ThrowOnError_Error()
{
var results = new VideoAnnotationResults {
Error = new Rpc.Status {
Message = "Bang"
}
};
var exception = Assert.Throws <AnnotateVideoException>(() => results.ThrowOnError());
Assert.Equal("Bang", exception.Message);
Assert.Same(results, exception.Response);
}
public void ThrowOnError_NoError()
{
var results = new VideoAnnotationResults
{
ShotLabelAnnotations =
{
new LabelAnnotation
{
Entity = new Entity{
Description = "X"
}
}
}
};
Assert.Same(results, results.ThrowOnError());
}
public void SpeechTranscription()
{
// Sample: SpeechTranscription
VideoIntelligenceServiceClient client = VideoIntelligenceServiceClient.Create();
AnnotateVideoRequest request = new AnnotateVideoRequest
{
InputUri = "gs://cloud-samples-data/video/googlework_short.mp4",
Features = { Feature.SpeechTranscription },
VideoContext = new VideoContext
{
SpeechTranscriptionConfig = new SpeechTranscriptionConfig
{
LanguageCode = "en-US",
EnableAutomaticPunctuation = true
}
}
};
Operation <AnnotateVideoResponse, AnnotateVideoProgress> operation = client.AnnotateVideo(request);
Operation <AnnotateVideoResponse, AnnotateVideoProgress> resultOperation = operation.PollUntilCompleted();
VideoAnnotationResults result = resultOperation.Result.AnnotationResults[0];
foreach (SpeechTranscription transcription in result.SpeechTranscriptions)
{
Console.WriteLine($"Language code: {transcription.LanguageCode}");
Console.WriteLine("Alternatives:");
foreach (SpeechRecognitionAlternative alternative in transcription.Alternatives)
{
Console.WriteLine($"({alternative.Confidence}) {alternative.Transcript}");
}
}
// End sample
IEnumerable <string> allTranscripts = result.SpeechTranscriptions
.SelectMany(st => st.Alternatives)
.Select(alt => alt.Transcript);
Assert.Contains(allTranscripts, t => t.Contains("Paris is special because"));
}
