private void ensureFeaturesIsMutable() {
      if (!((bitField0_ & 0x00000004) != 0)) {
        features_ = new java.util.ArrayList<java.lang.Integer>(features_);
        bitField0_ |= 0x00000004;
      }
    }
<pre>
The video data bytes.
If unset, the input video(s) should be specified via `input_uri`.
If set, `input_uri` should be unset.
</pre>

<code>bytes input_content = 6;</code>

@return This builder for chaining.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p1beta1/src/main/java/com/google/cloud/videointelligence/v1p1beta1/AnnotateVideoRequest.java