public Builder mergeVideoStream(com.google.cloud.video.livestream.v1.VideoStream value) {
      if (videoStreamBuilder_ == null) {
        if (elementaryStreamCase_ == 1
            && elementaryStream_
                != com.google.cloud.video.livestream.v1.VideoStream.getDefaultInstance()) {
          elementaryStream_ =
              com.google.cloud.video.livestream.v1.VideoStream.newBuilder(
                      (com.google.cloud.video.livestream.v1.VideoStream) elementaryStream_)
                  .mergeFrom(value)
                  .buildPartial();
        } else {
          elementaryStream_ = value;
        }
        onChanged();
      } else {
        if (elementaryStreamCase_ == 1) {
          videoStreamBuilder_.mergeFrom(value);
        } else {
          videoStreamBuilder_.setMessage(value);
        }
      }
      elementaryStreamCase_ = 1;
      return this;
    }
<pre>
Encoding of a video stream.
</pre>

<code>.google.cloud.video.livestream.v1.VideoStream video_stream = 1;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/ElementaryStream.java