private void buildPartialRepeatedFields(
        com.google.cloud.video.transcoder.v1.TextStream result) {
      if (mappingBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)) {
          mapping_ = java.util.Collections.unmodifiableList(mapping_);
          bitField0_ = (bitField0_ & ~0x00000004);
        }
        result.mapping_ = mapping_;
      } else {
        result.mapping_ = mappingBuilder_.build();
      }
    }
<pre>
Encoding of a text stream. For example, closed captions or subtitles.
</pre>

Protobuf type {@code google.cloud.video.transcoder.v1.TextStream}
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/TextStream.java