Hacked Movie EoS Event

Hacked_Movie_EoS_Event.pde

/**
 * Hacked Movie EoS Event (v2.1.0)
 * by GoToLoop (2022-Oct-20)
 *
 * Gist.GitHub.com/GoToLoop/67023ba3e9ba1d0301c40f7c030d176a
 *
 * Discourse.Processing.org/t/hacked-movie-eos-event-library/39375
 * Forum.Processing.org/two/discussion/14990/movie-begin-and-end-events#Item_1
 */

import processing.video.HackedMovie;
HackedMovie vid;

static final String FILENAME = "transit.mov";

void setup() {
  frameRate(30);
  textSize(050);
  textAlign(CENTER, BASELINE);
  fill(#FFFF00);

  vid = new HackedMovie(this, FILENAME);
  vid.play();

  while (vid.width == 0 | vid.height == 0)  delay(5);
  surface.setSize(vid.width, vid.height);
}

void draw() {
  if (!vid.ended)  background(vid);

  else {
    background((color) random(#000000));
    text("Playback has finished!", width >> 1, height >> 1);
  }
}

void movieEvent(final HackedMovie m) {
  m.read();
}

void eosEvent(final HackedMovie m) {
  frameRate(1);
  println(m);
}

HackedMovie.java

/**
 * Hacked Movie EoS Event (v2.1.0)
 * by GoToLoop (2022-Oct-20)
 *
 * Gist.GitHub.com/GoToLoop/67023ba3e9ba1d0301c40f7c030d176a
 *
 * Discourse.Processing.org/t/hacked-movie-eos-event-library/39375
 * Forum.Processing.org/two/discussion/14990/movie-begin-and-end-events#Item_1
 */

package processing.video;

import processing.core.PApplet;
import java.lang.reflect.Method;

import org.freedesktop.gstreamer.GstObject;
import static org.freedesktop.gstreamer.Bus.EOS;

public class HackedMovie extends Movie {
  public Method eosEventMethod;
  public boolean ended;

  public HackedMovie(final PApplet p, final String filename) {
    super(p, filename);
    addEOSListener(new MyEOS()).lookUpAndActivateEOSEventCallback();
  }

  public HackedMovie addEOSListener(final EOS eos) {
    playbin.getBus().connect(eos);
    return this;
  }

  public HackedMovie lookUpAndActivateEOSEventCallback() {
    final Class<?> p = eventHandler.getClass();

    try {
      eosEventMethod = p.getMethod("eosEvent", Movie.class);
    }
    catch (final NoSuchMethodException e) {
    }

    try {
      eosEventMethod = p.getMethod("eosEvent", HackedMovie.class);
    }
    catch (final NoSuchMethodException e) {
    }

    return this;
  }

  @Override public void setEventHandlerObject(final Object o) {
    super.setEventHandlerObject(o);

    final Class<?> p = o.getClass();

    try {
      movieEventMethod = p.getMethod("movieEvent", HackedMovie.class);
    }
    catch (final NoSuchMethodException e) {
    }
  }

  @Override public void play() {
    super.play();
    ended = false;
  }

  class MyEOS implements EOS {
    @Override public void endOfStream(final GstObject _) {
      ended = true;

      if (eosEventMethod != null)  try {
        eosEventMethod.invoke(eventHandler, HackedMovie.this);
      }
      catch (final ReflectiveOperationException e) {
      }
    }
  }
}