public Builder setAdTracking(com.google.cloud.video.stitcher.v1.AdTracking value) {
      if (value == null) {
        throw new NullPointerException();
      }
      bitField0_ |= 0x00000020;
      adTracking_ = value.getNumber();
      onChanged();
      return this;
    }
<pre>
Required. Determines how the ads are tracked.
</pre>

<code>
.google.cloud.video.stitcher.v1.AdTracking ad_tracking = 6 [(.google.api.field_behavior) = REQUIRED];
</code>

@param value The adTracking to set.
@return This builder for chaining.
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/LiveConfig.java