GSvideo 20110116 - memory leak - dispose delete method

gianluca_..

GSvideo 20110116 - memory leak - dispose delete method

in Contributed Library Questions • 2 years ago

I am trying to test new version of GSvideo on win 7 32bit PC.

It seems that memory leak is still present(switching between more video lead to "out of memory")..and some h264 full hd video crash sometimes.

I read that delete and dispose method has been implemented, are there some explanation about how to use them?

thanks!

Replies(7)

andres

Re: GSvideo 20110116 - memory leak - dispose delete method

2 years ago

Hi, thanks for the info. As a matter of fact, I just uploaded a new test release of GSVideo (20110203) which includes updated gstreamer binaries:

http://sourceforge.net/projects/gsvideo/files/gsvideo/test/

You might be interested in giving the windows version a try, to see if the memory leak is still present.

As for the delete/dispose methods, you can call delete() when you are done using a movie object (or any other gsvideo object), during the execution of your program. For example:

movie.delete();
movie = new GSMovie(this, "clip.avi");
movie.loop();
...

delete() tries to release any native gstreamer resources that are outside the scope of Java's GC. However, if these leaks are happening a the level of the gstreamer libraries, this might not be able to fix it.

gianluca_..

Re: Re: GSvideo 20110116 - memory leak - dispose delete method

2 years ago

trying to figure out what is the memory leak origin, i made a sketch that dispose the movie..i discover that after a dispose call, it seems that the movie is still there..

with println("movie: " + movie);

after a movie.dispose(); still gives me something like movie: codeanticode.gsvideo.GSMovie@1b104d7

but if i call again movie.dispose(); the sketch crash say it was already disposed...

is this normal?

PS: i tried to assign movie = null; and call System.gc(); but the memory continue to grow switching between movie..

gianluca_..

Re: GSvideo 20110116 - memory leak - dispose delete method

2 years ago

i try the latest version 20110203, but the leak is still present..maybe it is at gstreamer library level...

I am using processing 1.0.9, do you think something could be different with 1.2.1?

andres

Re: GSvideo 20110116 - memory leak - dispose delete method

2 years ago

I don't think upgrading to 1.2.1 would make any difference, as I suspect the leak is caused upstream by the gstreamer libraries themselves.

There has been a discussion a while ago among the gstreamer-java developers (gstreamer-java are the java bindings gsvideo use to access gstreamer) about a possible memory leak. But it was marked as won't fix because the issue is difficult to reproduce and for the gstreamer developers to take a look at it we need to provide a C program that shows the leak.

Maybe if you can post here a minimal sketch that exhibits the memory leak in Processing, I would see if I can reproduce it in pure Java and then C, to pass it along to the gstreamer developers.

gianluca_..

Re: GSvideo 20110116 - memory leak - dispose delete method

2 years ago

here the code i use to test the leak (the movies and font are under data switching) switching between movies lead to "out of memory":

import processing.opengl.*;

import codeanticode.glgraphics.*;

import javax.media.opengl.*;

import codeanticode.gsvideo.*;

char inChar = '1';

char pre_inChar = '1';

PFont fnt;

GSMovie myMovie;

GLTexture tex;

void setup()

{

size(800, 600, GLConstants.GLGRAPHICS);

// frame.setLocation(0,0);

fnt = loadFont("Alba-48.vlw");

tex = new GLTexture(this);

myMovie = new GSMovie(this, dataPath("") + "4.mov");

myMovie.loop();

}

void draw()

{

background(0);

// println("frameRate: " + frameRate);

if(inChar == '0') {

if(pre_inChar != inChar) {

if(myMovie != null) {

myMovie.stop();

myMovie.delete();

System.gc();

}

pre_inChar = inChar;

}

if(inChar == '1') {

if(pre_inChar != inChar) {

if(myMovie != null) {

myMovie.stop();

myMovie.delete();

System.gc();

}

myMovie = new GSMovie(this, dataPath("") + "1.mov");

myMovie.loop();

}

pre_inChar = inChar;

}

if(inChar == '2') {

if(pre_inChar != inChar) {

if(myMovie != null) {

myMovie.stop();

myMovie.delete();

System.gc();

}

myMovie = new GSMovie(this, dataPath("") + "2.mov");

myMovie.loop();

}

pre_inChar = inChar;

}

if(inChar == '3') {

if(pre_inChar != inChar) {

if(myMovie != null) {

myMovie.stop();

myMovie.delete();

System.gc();

}

myMovie = new GSMovie(this, dataPath("") + "3.mov");

myMovie.loop();

}

pre_inChar = inChar;

}

if(myMovie.available()) {

myMovie.read();

// tex = new GLTexture(this);

tex.putPixelsIntoTexture(myMovie);

}

image(tex,0,0);

textFont(fnt,90);

text(inChar,width/2,height/2);

}

void keyPressed() {

inChar = char(key);

}

i tested this code under linux..but the video crash very often with(maybe a gstreamer for linux and movie format):

GSVideo VERSION: 20110203

# A fatal error has been detected by the Java Runtime Environment:

# SIGSEGV (0xb) at pc=0xb75d89c4, pid=8515, tid=1851718512

# JRE version: 6.0_16-b01

# Java VM: Java HotSpot(TM) Server VM (14.2-b01 mixed mode linux-x86 )

# Problematic frame:

# C [libc.so.6+0x7b9c4] memcpy+0x34

here the full log:

http://pastebin.com/UHGTFNt3

i am running slackware current with gstreamer-0.10.32-i486-1

andres

Re: GSvideo 20110116 - memory leak - dispose delete method

2 years ago

I recently made some fixes that should solve this leak. Download windows, linux and osx packages from here (version 20110304)

dieantwoo..

Re: Re: GSvideo 20110116 - memory leak - dispose delete method

2 years ago

i am using the newest version of GSvideo ( 0.9 ) and the newest version of processing ( 1.5.1 ) on mac os snow leopard but still have the memory leak problem. i also tried your recommendation ( version 20110304 ) but i think it doesnt work with current processing or java version. do you have a workaround for me?

http://forum.processing.org/topic/out-of-memory-problems-with-gsvideo

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