silent execution bug with processing standalone program - processing

Question

I have been trying to use processing (3.0.2) as a lib to display video. You can see the beginning of my main class below. I am using Maven to build a fat .jar that I run on the command line. The program runs, does not freeze, and can be closed, but no video... (screenshot below) The problem is that happens totally silently: no warning, no crash.
I am totally sure that the video file is found by the program, since removing it triggers a RuntimeException.
Edit: Ok, so the file is found, but not the frames. The program is stuck trying to find a nonzero frame.
Edit 2: It seems it is in fact a GStreamer problem. Apparently, Processing does not support the GStreamer 1.x lineage. Installing GStreamer 0.1x as explained here and here, unfortunately did not work for me.
Edit 3: Trying with a basic example (code below), I see that the Movie.read() method is never triggered, although the draw() method is. Since there still are no errors or warnings, I guess it's a library problem. Interestingly, this very same code works perfectly when executed as a .pde from the Processing IDE, so there must be a library there that I am lacking. Any ideas??
My dependencies:
core.jar
video.jar
jna.jar
gstreamer-java.jar
System: Ubuntu 14.04 LTS, Java HotSpot(TM) 64-Bit Server VM (java version "1.8.0_77"), Processing 3.0.2 with video library installed through the processing IDE.
import processing.core.PApplet;
import processing.video.*;
public class TestMovie extends PApplet{
Movie myMovie;
public static void main(String[] args){
PApplet.main(TestMovie.class.getName());
}
public void settings(){
size(720, 480, FX2D);
}
public void setup() {
//background(0);
try{
myMovie = new Movie(this, "red_45deg_284sec_500ml.mpg");
}catch(Exception e){
System.out.println(e.getMessage());
}
myMovie.loop();
}
public void draw() {
image(myMovie.get(), 0, 0);
System.out.println("I'm drawing!");
}
// Called every time a new frame is available to read
void movieEvent(Movie m) {
try{
m.read();
}catch(Exception e){
System.out.println(e.getMessage());
}
System.out.println("new frame!");
}
}

Answer 1

So, I finally got the movie playing, and it does not seem to be a library problem after all... For some mysterious reason, movieEvent() does not execute, most likely because no event is triggered. Using Movie.available() solved it as follows:
public class TestMovie extends PApplet{
Movie myMovie;
public static void main(String[] args){
PApplet.main(TestMovie.class.getName());
}
public void settings(){
size(720, 480, FX2D);
}
public void setup() {
//background(0);
try{
myMovie = new Movie(this, "red_45deg_284sec_500ml.mpg");
}catch(Exception e){
System.out.println(e.getMessage());
}
myMovie.loop();
}
public void draw() {
if (myMovie.available()) {
myMovie.read();
}
image(myMovie, 0, 0);
}
}