public Builder mergeVideoConfig(
        com.google.cloud.videointelligence.v1p3beta1.StreamingVideoConfig value) {
      if (videoConfigBuilder_ == null) {
        if (streamingRequestCase_ == 1
            && streamingRequest_
                != com.google.cloud.videointelligence.v1p3beta1.StreamingVideoConfig
                    .getDefaultInstance()) {
          streamingRequest_ =
              com.google.cloud.videointelligence.v1p3beta1.StreamingVideoConfig.newBuilder(
                      (com.google.cloud.videointelligence.v1p3beta1.StreamingVideoConfig)
                          streamingRequest_)
                  .mergeFrom(value)
                  .buildPartial();
        } else {
          streamingRequest_ = value;
        }
        onChanged();
      } else {
        if (streamingRequestCase_ == 1) {
          videoConfigBuilder_.mergeFrom(value);
        } else {
          videoConfigBuilder_.setMessage(value);
        }
      }
      streamingRequestCase_ = 1;
      return this;
    }
<pre>
Provides information to the annotator, specifing how to process the
request. The first `AnnotateStreamingVideoRequest` message must only
contain a `video_config` message.
</pre>

<code>.google.cloud.videointelligence.v1p3beta1.StreamingVideoConfig video_config = 1;</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/StreamingAnnotateVideoRequest.java