@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
`VideoStream.vbv_size_bits`.
</pre>

<code>int32 vbv_fullness_bits = 13;</code>

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