GLvideo and GPU memory

RaulF

Hi there,

I have problems loading several videos with GLvideo. I need to load, and play them continuously, one by one (a big video, and jump() is not an option).

With "myMovie.close()" I free the CPU RAM. No problems. It works perfect.

The problem is the GPU RAM. It becomes full, until the program crash. With

sudo vcdbg reloc

I can see that

total space allocated is 592M, with 590M relocatable, 2.3M legacy and 0 offline
1 legacy blocks of size 2359296

free list at 0x3da82260
580M free memory in 37 free block(s)

Then 560M free memory, 500, 400,...until the program crash.

I have tried everything, but no way to free the GPU RAM.

This is a simplification of my code (this is not my code, it is just a simplification):

  import gohai.glvideo.*;
  GLMovie myMovie;  

  boolean movieLoaded=false;

void setup() {
  size(400, 240, P2D);
}

void draw() {
  background(0);
  if (movieLoaded) {
    if (myMovie.available()) {
      myMovie.read();
    }
    image(myMovie, 0, 0, width, height);
  }

  if (frameCount % 900 == 0) {
    if (movieLoaded) {
      clearMovie();
    }
  } else if (frameCount % 900 == 30) {
    if (!movieLoaded) {
      myMovie = new GLMovie(this, "launch1.mp4");
      movieLoaded=true;
      myMovie.play();
    }
  }
}

public void clearMovie() {
  myMovie.close();
  movieLoaded=false;
}

Any help would be more than welcome! f.-

gohai

Hi @RaulF - thank you for the report, this issue on GitHub might be the same or related.

It's something that I need to look into at some point, but I currently don't foresee having time for it in the near future - sorry. That said: the library code is open source, so if anyone else wants to try investigating this, they can. (Tracking down GPU memory leaks in a closed-source graphics driver is not exactly the easiest thing though, unfortunately.)

RaulF

Hi gohai,

Yes, I think it is the same issue. I really would like to help, but I have no idea where to start :D

Looking into the GPU memory, after a while, it is full of 'Orphaned EGLImage storage'

0x3d27e9a0: used 1.5M (refcount 1 lock count 0, size 1536000, align 4096, data 0x3d27f000, d1rual) 'Orphaned EGLImage storage'

but I haven't found any documentation about this anywhere.

Best.

RaulF

Hi gohai,

I will take a look into this this December. Any clue where or how to start looking for? I have any experience with that kind of things, and I can't find any info anyway.

Thanks!