private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettings,
            com.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettings.Builder,
            com.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettingsOrBuilder>
        getH264FieldBuilder() {
      if (h264Builder_ == null) {
        if (!(codecSettingsCase_ == 1)) {
          codecSettings_ =
              com.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettings
                  .getDefaultInstance();
        }
        h264Builder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettings,
                com.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettings.Builder,
                com.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettingsOrBuilder>(
                (com.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettings) codecSettings_,
                getParentForChildren(),
                isClean());
        codecSettings_ = null;
      }
      codecSettingsCase_ = 1;
      onChanged();
      return h264Builder_;
    }
<pre>
H264 codec settings.
</pre>

<code>.google.cloud.video.transcoder.v1.VideoStream.H264CodecSettings h264 = 1;</code>
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/VideoStream.java