@java.lang.Override
      public int getVbvFullnessBits() {
        return vbvFullnessBits_;
      }
<pre>
Initial fullness of the Video Buffering Verifier (VBV) buffer in bits.
Must be greater than zero. The default is equal to 90% of
[vbv_size_bits][google.cloud.video.livestream.v1.VideoStream.H264CodecSettings.vbv_size_bits].
</pre>

<code>int32 vbv_fullness_bits = 10;</code>

@return The vbvFullnessBits.
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/VideoStream.java