public Builder setVbvFullnessBits(int value) {

        vbvFullnessBits_ = value;
        bitField0_ |= 0x00001000;
        onChanged();
        return this;
      }
<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>

@param value The vbvFullnessBits to set.
@return This builder for chaining.
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/VideoStream.java