No return from curl when requesting video annotation

Question

Hi, I'm following the instructions here to request an video annotation processing.

curl -s -H 'Content-Type: application/json' -H 'Authorization: Bearer ACCESS_TOKEN_PASTED_HERE' 'https://videointelligence.googleapis.com/v1/videos:annotate' -d @request.json

My json file includes the public link to the video file stored in the project bucket.

    {
   "inputUri":"https://storage.googleapis.com/PROJECT_URL_HERE/video.mp4",
   "features": [
       "LABEL_DETECTION"
    ]
    }

I'm supposed to get a response with the operation name:

The Video Intelligence API creates an operation to process your request. The response includes the operation name:

{ "name": "us-west1.18358601230245040268" }

The actual result I get is nothing, not even an error. Just a moment of waiting followed by a blank command line.

My dashboard shows a successful creation of my credentials but shows no activity on the Video Intelligence API.

Thanks!

Guillem Xercavins Guillem Xercavins · Accepted Answer · 2018-03-25T10:19:31

The inputUri field must be a valid GCS path in the format gs://BUCKET_NAME/path/to/video as explained here, and not the https://storage.googleapis.com link you are using. Otherwise, it should return google.rpc.Code.INVALID_ARGUMENT. If you don't get any output maybe it's a syntax error (see steps below). In my case, it reads:

{
  "error": {
    "code": 400,
    "message": "Request contains an invalid argument.",
    "status": "INVALID_ARGUMENT"
  }
}

If, instead, you use one of the public examples in gs:// format in your request.json:

{
   "inputUri":"gs://cloud-ml-sandbox/video/chicago.mp4",
   "features": [
       "LABEL_DETECTION"
   ]
}

and then activate the service account and request the video annotations by running the following:

gcloud auth activate-service-account --key-file=/path/to/credentials.json
curl -s -H "Content-Type: application/json" \
        -H "Authorization: Bearer $(gcloud auth print-access-token)" \
           "https://videointelligence.googleapis.com/v1/videos:annotate" \
        -d @request.json

you'll get a response like:

{
  "name": "europe-west1.16***************80"
}

Once you have the operation name you can check the status with:

curl -s -H "Content-Type: application/json" \
    -H "Authorization: Bearer $(gcloud auth print-access-token)" \
    "https://videointelligence.googleapis.com/v1/operations/europe-west1.16***************80" > result.json

Verify that it is done with:

cat result.json | grep done

If finished, that should output:

"done": true,

and result.json will contain the requested annotations:

"annotationResults": [
  {
    "inputUri": "/cloud-ml-sandbox/video/chicago.mp4",
    "segmentLabelAnnotations": [
      {
        "entity": {
          "entityId": "/m/0pg52",
          "description": "taxi",
          "languageCode": "en-US"
        },
        ...

No return from curl when requesting video annotation

1 Answers