public Builder mergeFrom(
          com.google.cloud.video.livestream.v1.AudioStream.AudioMapping other) {
        if (other
            == com.google.cloud.video.livestream.v1.AudioStream.AudioMapping.getDefaultInstance())
          return this;
        if (!other.getInputKey().isEmpty()) {
          inputKey_ = other.inputKey_;
          bitField0_ |= 0x00000001;
          onChanged();
        }
        if (other.getInputTrack() != 0) {
          setInputTrack(other.getInputTrack());
        }
        if (other.getInputChannel() != 0) {
          setInputChannel(other.getInputChannel());
        }
        if (other.getOutputChannel() != 0) {
          setOutputChannel(other.getOutputChannel());
        }
        if (other.getGainDb() != 0D) {
          setGainDb(other.getGainDb());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        onChanged();
        return this;
      }
<pre>
The mapping for the input streams and audio channels.
</pre>

Protobuf type {@code google.cloud.video.livestream.v1.AudioStream.AudioMapping}
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/AudioStream.java