@java.lang.Override
      public Builder clear() {
        super.clear();
        bitField0_ = 0;
        widthPixels_ = 0;
        heightPixels_ = 0;
        frameRate_ = 0D;
        bitrateBps_ = 0;
        pixelFormat_ = "";
        rateControlMode_ = "";
        crfLevel_ = 0;
        allowOpenGop_ = false;
        if (gopDurationBuilder_ != null) {
          gopDurationBuilder_.clear();
        }
        enableTwoPass_ = false;
        vbvSizeBits_ = 0;
        vbvFullnessBits_ = 0;
        entropyCoder_ = "";
        bPyramid_ = false;
        bFrameCount_ = 0;
        aqStrength_ = 0D;
        profile_ = "";
        tune_ = "";
        preset_ = "";
        gopModeCase_ = 0;
        gopMode_ = null;
        return this;
      }
<pre>
H264 codec settings.
</pre>

Protobuf type {@code google.cloud.video.transcoder.v1.VideoStream.H264CodecSettings}
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/VideoStream.java