I'm trying to play a video on Processing 3.5.3 with the GLvideo library, but I am getting an error message that Processing cannot load GStreamer.

import gohai.glvideo.*;
GLMovie video;
boolean forward = true;

void setup() {
  size(560, 406, P3D);
  video = new GLMovie(this, "vid.mp4");

void draw() {
  if (video.available()) {
  image(video, 0, 0, width, height);

void mousePressed() {
  forward = !forward;
  if (forward == true) {
  } else {

the error message reads

GLVideo requires the P2D or P3D renderer.

(java:8347): GLib-CRITICAL **: 21:49:40.265: g_error_free: assertion 'error != NULL' failed
RuntimeException: Could not load GStreamer

I'm new to working with Processing on Raspberry Pi, so it may be a simple fix that I'm missing.

any insight? thanks!

  • Where is the problem with Raspberry Pi?
    – Ingo
    Commented Feb 10, 2020 at 13:20
  • @Ingo the same sketch runs fine on my mac, I'm using GLVideo because the rPi doesn't support the original video library
    – evvvonder
    Commented Feb 11, 2020 at 14:21

1 Answer 1


I was facing the same problem. Found out that Video and GLVideo from contribution manager not working anymore, instead I downloaded Video library from Github and now examples from Video library are working, but slow. Also, in the GLVideo examples I replaced the GLVideo for Video.

Check this thread also

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