public Builder clearAudioStream() {
      if (audioStreamBuilder_ == null) {
        if (elementaryStreamCase_ == 2) {
          elementaryStreamCase_ = 0;
          elementaryStream_ = null;
          onChanged();
        }
      } else {
        if (elementaryStreamCase_ == 2) {
          elementaryStreamCase_ = 0;
          elementaryStream_ = null;
        }
        audioStreamBuilder_.clear();
      }
      return this;
    }
<pre>
Encoding of an audio stream.
</pre>

<code>.google.cloud.video.livestream.v1.AudioStream audio_stream = 2;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/ElementaryStream.java