public Builder setAudioStream(
        com.google.cloud.video.transcoder.v1.AudioStream.Builder builderForValue) {
      if (audioStreamBuilder_ == null) {
        elementaryStream_ = builderForValue.build();
        onChanged();
      } else {
        audioStreamBuilder_.setMessage(builderForValue.build());
      }
      elementaryStreamCase_ = 2;
      return this;
    }
<pre>
Encoding of an audio stream.
</pre>

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