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main.go
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main.go
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// Copyright 2017 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
// [START video_quickstart]
// Sample video_quickstart uses the Google Cloud Video Intelligence API to label a video.
package main
import (
"fmt"
"log"
"github.com/golang/protobuf/ptypes"
// Imports the Google Cloud Video Intelligence API client package.
video "cloud.google.com/go/videointelligence/apiv1"
"golang.org/x/net/context"
videopb "google.golang.org/genproto/googleapis/cloud/videointelligence/v1"
)
func main() {
ctx := context.Background()
// Creates a client.
client, err := video.NewClient(ctx)
if err != nil {
log.Fatalf("Failed to create client: %v", err)
}
op, err := client.AnnotateVideo(ctx, &videopb.AnnotateVideoRequest{
InputUri: "gs://demomaker/cat.mp4",
Features: []videopb.Feature{
videopb.Feature_LABEL_DETECTION,
},
})
if err != nil {
log.Fatalf("Failed to start annotation job: %v", err)
}
resp, err := op.Wait(ctx)
if err != nil {
log.Fatalf("Failed to annotate: %v", err)
}
// Only one video was processed, so get the first result.
result := resp.GetAnnotationResults()[0]
for _, annotation := range result.SegmentLabelAnnotations {
fmt.Printf("Description: %s\n", annotation.Entity.Description)
for _, category := range annotation.CategoryEntities {
fmt.Printf("\tCategory: %s\n", category.Description)
}
for _, segment := range annotation.Segments {
start, _ := ptypes.Duration(segment.Segment.StartTimeOffset)
end, _ := ptypes.Duration(segment.Segment.EndTimeOffset)
fmt.Printf("\tSegment: %s to %s\n", start, end)
fmt.Printf("\tConfidence: %v\n", segment.Confidence)
}
}
}
// [END video_quickstart]