With the PublishFragment file open, remove most of the automated cruft so we have the following

import android.hardware.Camera;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.widget.Button;

import com.red5pro.streaming.R5Connection;
import com.red5pro.streaming.R5Stream;
import com.red5pro.streaming.R5StreamProtocol;
import com.red5pro.streaming.config.R5Configuration;
import com.red5pro.streaming.source.R5Camera;
import com.red5pro.streaming.source.R5Microphone;
import com.red5pro.streaming.R5Stream.RecordType;

public class PublishFragment extends Fragment {

  public static PublishFragment newInstance() {
    PublishFragment fragment = new PublishFragment();
    Bundle args = new Bundle();
    fragment.setArguments(args);
    return fragment;
  }

  public PublishFragment() {
    // Required empty public constructor
  }

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
                           Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.fragment_publish, container, false);
    return v;
  }

}

 @Override
public Fragment getItem(int position) {
  switch(position) {
    case 0:
      return PublishFragment.newInstance();
  }
  // getItem is called to instantiate the fragment for the given page.
  // Return a PlaceholderFragment (defined as a static inner class below).
  return PlaceholderFragment.newInstance(position + 1);
}

Open the fragment_publish.xml file, change the Layout to RelativeLayout and add a SurfaceView and Button control

<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  tools:context="com.infrared5.streaming.sample.red5prostreamexample.PublishFragment">

  <SurfaceView
    android:id="@+id/surfaceView"
    android:layout_width="320px"
    android:layout_height="240px"
    android:layout_centerInParent="true"
    android:scaleX="1"
    android:scaleY="1"
    />

  <Button
    android:id="@+id/publishButton"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="start"
    android:layout_marginBottom="0dp"
    android:layout_alignParentBottom="true"
    />

</RelativeLayout>