[YOLO] Error msg : RuntimeException: java.lang.Error: Invalid memory access

GWAK · August 21, 2021, 9:52am

library : GitHub - cansik/deep-vision-processing: Deep computer-vision algorithms for the Processing framewo

import ch.bildspur.vision.*;
import ch.bildspur.vision.result.*;

DeepVision deepVision = new DeepVision(this);
YOLONetwork yolo;
ResultList<ObjectDetectionResult> detections;
PImage image;
import processing.video.*;
Movie movie;
void movieEvent(Movie m) {  m.read();}

public void setup() {
  size(1000, 800, FX2D);

  colorMode(HSB, 360, 100, 100);
  
  println("creating model...");
 //  yolo = deepVision.createYOLOv4();
 
  yolo = deepVision.createYOLOv4Tiny();
  println("loading yolo model...");
  yolo.setup();
    
  println("inferencing...");
  movie = new Movie(this, "video3.mp4");
  movie.loop();

}
int textSize = 12;

public void draw() {
  
  background(55);   
  if (movie.width == 0) {    return;  }
  // movie.resize(width,height);  image(movie, 0, 0, width,height);
  image(movie, 0, 0);
  
  yolo.setConfidenceThreshold(0.2f);
  detections = yolo.run(movie);

  strokeWeight(3f);
  textSize(textSize);

  for (ObjectDetectionResult detection : detections) {
    int hue = (int)(360.0 / yolo.getLabels().size() * detection.getClassId());

    noFill();
    stroke(hue, 80, 100);
    rect(detection.getX(), detection.getY(), detection.getWidth(), detection.getHeight());

    fill(hue, 80, 100);
    rect(detection.getX(), detection.getY() - (textSize + 3), textWidth(detection.getClassName()) + 4, textSize + 3);

    fill(0);
    textAlign(LEFT, TOP);
    text(detection.getClassName(), detection.getX() + 2, detection.getY() - textSize - 3);
  }

  surface.setTitle("Webcam YOLO Test - FPS: " + Math.round(frameRate));
   
  
}

Video size: 640 x 480
It works to some extent.

Video size: 1280 x 720
An error pops up and it doesn’t work.

RuntimeException: java.lang.Error: Invalid memory access
java.lang.RuntimeException: java.lang.Error: Invalid memory access
	at processing.javafx.PSurfaceFX.lambda$0(PSurfaceFX.java:411)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.Error: Invalid memory access
	at com.sun.jna.Native.invokePointer(Native Method)
	at com.sun.jna.Function.invokePointer(Function.java:477)
	at com.sun.jna.Function.invoke(Function.java:411)
	at com.sun.jna.Function.invoke(Function.java:323)
	at com.sun.jna.Library$Handler.invoke(Library.java:236)
	at com.sun.proxy.$Proxy33.g_type_name(Unknown Source)
	at org.gstreamer.lowlevel.GstTypes.find(GstTypes.java:58)
	at org.gstreamer.lowlevel.GstTypes.classFor(GstTypes.java:90)
	at org.gstreamer.ElementFactory.elementFor(ElementFactory.java:214)
	at org.gstreamer.ElementFactory.make(ElementFactory.java:92)
RuntimeException: java.lang.Error: Invalid memory access
	at org.gstreamer.elements.RGBDataAppSink.<init>(RGBDataAppSink.java:63)
	at processing.video.Movie.initSink(Unknown Source)
	at processing.video.Movie.play(Unknown Source)
	at processing.video.Movie.loop(Unknown Source)
	at YOLODetectObjects.setup(YOLODetectObjects.java:46)
	at processing.core.PApplet.handleDraw(PApplet.java:2425)
	at processing.javafx.PSurfaceFX$1.handle(PSurfaceFX.java:89)
	at processing.javafx.PSurfaceFX$1.handle(PSurfaceFX.java:1)
	at com.sun.scenario.animation.shared.TimelineClipCore.visitKeyFrame(TimelineClipCore.java:239)
	at com.sun.scenario.animation.shared.TimelineClipCore.playTo(TimelineClipCore.java:197)
	at javafx.animation.Timeline.impl_playTo(Timeline.java:176)
	at javafx.animation.AnimationAccessorImpl.playTo(AnimationAccessorImpl.java:39)
	at com.sun.scenario.animation.shared.InfiniteClipEnvelope.timePulse(InfiniteClipEnvelope.java:110)
	at javafx.animation.Animation.impl_timePulse(Animation.java:1102)
	at javafx.animation.Animation$1.lambda$timePulse$25(Animation.java:186)
	at java.security.AccessController.doPrivileged(Native Method)
	at javafx.animation.Animation$1.timePulse(Animation.java:185)
	at com.sun.scenario.animation.AbstractMasterTimer.timePulseImpl(AbstractMasterTimer.java:344)
	at com.sun.scenario.animation.AbstractMasterTimer$MainLoop.run(AbstractMasterTimer.java:267)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:514)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:498)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulseFromQueue(QuantumToolkit.java:491)
	at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$408(QuantumToolkit.java:319)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$null$152(WinApplication.java:177)
	... 1 more

[My computer sepc]

Windows 10 64bit
Intel core i7-9700KF CPU @3.60GHz
32GB(RAM)

Is it a matter of my computer specs?
Is it a matter of the specification of the processing tool?

BrendanL · August 21, 2021, 9:15pm

It’s not processing. I’ve created 2160p videos from frames generated in Processing. 2160p is 3840 x 2160.

GWAK · August 22, 2021, 5:49am

@BrendanL Thanks for the reply.

Simply ‘video’ operation is not affected by resolution.
When using the ‘Deep Vision’ library together, an ‘error’ will occur.
Is it just me?

glv · August 22, 2021, 12:20pm

Hello,

Your code works for me.

Details (short list) of system:

W10 Pro 21H1
Intel(R) Core™ i7-6700 CPU @ 3.40GHz, 16GB ram
Processing 4.0b1
NVidia video card
1280X720 MP4 video used
Library from:
image736×194 15.5 KB
The latest Sound and Video library from Contribution Manager.

The only hiccup was I had to remove FX2D and I also changed size:

size(1000, 800, FX2D); // I changed this

Nice formatting!

:)

cansik · August 22, 2021, 4:59pm

I am not at a computer atm, but your stacktrace does not show anything deep vision related if I read it correctly.

It sounds more like a timing (concurrency) problem…

Not sure what happens memorywise if you copy a PImage from gstreamer (should be in the GPU), but maybe it‘s solving the problem. Just try to copy the movie frame before feeding it into Deep Vision.

Or just removie the movieEvent and read the frame in the draw method directly, to being able to control the timing.

GWAK · August 22, 2021, 11:49pm

@glv, @cansik,

Thank you for quick response.
The ‘resolution problem’ was resolved through the ‘video library version’ update.

However, there seems to be a problem with the ‘resize’ function.

movie.resize(width,height);

If the above function is used, no progress is made.

Does anyone know how to solve it?

jeremydouglass · August 27, 2021, 10:01pm

Are you trying to change the size of movie playback for each frame?

Movie / Libraries / Processing.org

If I recall right, the issue with resizing Movie frames is that you need to wait until the first frame actually has a width and height, after it has been decoded. See old discussion that might be relevant…

GWAK · August 29, 2021, 11:01pm

@jeremydouglass

Thank you. ^^

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[YOLO] Error msg : RuntimeException: java.lang.Error: Invalid memory access

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