public Builder clearMapping() {
      if (mappingBuilder_ == null) {
        mapping_ = java.util.Collections.emptyList();
        bitField0_ = (bitField0_ & ~0x00000020);
        onChanged();
      } else {
        mappingBuilder_.clear();
      }
      return this;
    }
<pre>
The mapping for the input streams and audio channels.
</pre>

<code>repeated .google.cloud.video.livestream.v1.AudioStream.AudioMapping mapping = 5;</code>
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/AudioStream.java