@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(playUri_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, playUri_);
    }
    com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
        output, internalGetAdTagMacros(), AdTagMacrosDefaultEntryHolder.defaultEntry, 6);
    if (((bitField0_ & 0x00000001) != 0)) {
      output.writeMessage(10, getManifestOptions());
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      output.writeMessage(15, getGamSettings());
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(liveConfig_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 16, liveConfig_);
    }
    if (adTracking_
        != com.google.cloud.video.stitcher.v1.AdTracking.AD_TRACKING_UNSPECIFIED.getNumber()) {
      output.writeEnum(17, adTracking_);
    }
    getUnknownFields().writeTo(output);
  }
<pre>
Determines how the ad should be tracked. This overrides the value set in
the live config for this session.
</pre>

<code>.google.cloud.video.stitcher.v1.AdTracking ad_tracking = 17;</code>

@return The adTracking.
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/LiveSession.java