Add new video samples (#382)

Author: Ace Nassri

packages/google-cloud-videointelligence/samples/README.md

@@ -2,9 +2,9 @@
 
 # Google Cloud Video Intelligence API Node.js Samples
 
-The [Cloud Video Intellience API][video_docs] allows developers to easily
-integrate video analysis within applications, including video labeling, face
-detection, and shot change detection.
+The [Cloud Video Intelligence API][video_docs] allows developers to easily
+integrate video analysis within applications, including video labeling, safe search
+, and shot change detection.
 
 [video_docs]: https://cloud.google.com/video-intelligence/docs/
 
@@ -41,17 +41,19 @@ __Usage:__ `node analyze.js --help`
 
 ```
 Commands:
-  faces <gcsUri>   Analyzes faces in a video using the Cloud Video Intelligence API.
-  shots <gcsUri>   Analyzes shot angles in a video using the Cloud Video Intelligence API.
-  labels <gcsUri>  Labels objects in a video using the Cloud Video Intelligence API.
+  shots <gcsUri>        Analyzes shot angles in a video stored in Google Cloud Storage using the Cloud Video
+                        Intelligence API.
+  labels-gcs <gcsUri>   Labels objects in a video stored in Google Cloud Storage using the Cloud Video Intelligence API.
+  labels-file <gcsUri>  Labels objects in a video stored locally using the Cloud Video Intelligence API.
 
 Options:
   --help  Show help                                                                                            [boolean]
 
 Examples:
-  node analyze.js faces gs://my-bucket/my-video.mp4
   node analyze.js shots gs://my-bucket/my-video.mp4
-  node analyze.js labels gs://my-bucket/my-video.mp4
+  node analyze.js labels-gcs gs://my-bucket/my-video.mp4
+  node analyze.js labels-file my-video.mp4
+  node analyze.js unsafe-content gs://my-bucket/my-video.mp4
 
 For more information, see https://cloud.google.com/video-intelligence/docs
 ```

packages/google-cloud-videointelligence/samples/quickstart.js

@@ -47,7 +47,7 @@ video.annotateVideo(request)
     // Gets faces for video from its annotations
     const faces = annotations.faceAnnotations;
     faces.forEach((face, faceIdx) => {
-      console.log('Thumbnail size:', face.thumbnail.buffer.length);
+      console.log('Thumbnail size:', face.thumbnail.length);
       face.segments.forEach((segment, segmentIdx) => {
         console.log(`Track ${segmentIdx} of face ${faceIdx}: frames ${segment.startTimeOffset} to ${segment.endTimeOffset}`);
       });