Cleaning up audio3d

Scripting Issues
1

I’m having some problems with cleaning up some audio.

I’ve got one audio manager and every ‘monster’ in my game loads sound files via this shared manager also every monster has a node of its own that I attach all the sound object to (for 3d audio).
Nothing fancy, just like this:

        self.sounds={'hit':self.audio3d.loadSfx(setup_data["hit_sfx"]),                    
                     'die':self.audio3d.loadSfx(setup_data["die_sfx"]) 
                    }       
        for sound in self.sounds:
            self.audio3d.attachSoundToObject(self.sounds[sound], self.node)

When a monster is killed I want to detach its node from the scene graph, but first I want to detach the 3d audio so it won’t blow in my face… I was thinking this would work:

 def destroy(self):
        for sound in self.sounds:            
            self.audio3d.detachSound(self.sounds[sound])  
        if self.actor:
            self.actor.cleanup() 
            self.actor.removeNode()                
        if taskMgr.hasTaskNamed("AIfor"+str(self.id)):
            taskMgr.remove("AIfor"+str(self.id))
        if taskMgr.hasTaskNamed('collFor'+str(self.id)):
            taskMgr.remove('collFor'+str(self.id))    
        if self.node:
            self.node.removeNode()    
        self.monsterList[self.id]=None

…and it sort of work, but from time to time, the python interpreter hangs, windows claims ‘there was a problem’ and points to libpanda.dll. All I can do is close the window and I get this message in the command prompt:

AL lib: ReleaseALC: 1 device not closed

It looks like it is happening when I try to play a sound while or just after detaching the sounds.

If I use audio-library-name p3fmod_audio then there’s no message in the command prompt, but the same sort of crash appears.

So… what did I do wrong this time?

I’m running on Windows XP, Panda3D-1.8.1

EDIT:
It looks like this only happens when I have loadPrcFileData(’’,‘threading-model Cull/Draw’)

2

An update:

This only happens in the multithreaded render pipeline

This happens with 3d audio and with normal playback.
It happens when I detach sound (very often if not always), but it also happens when I don’t detach the sound and use the same object later.
It happens with 2d sound as well, but not so often (after 5-10 minutes).

I’ve only been able to determine that this happens after I remove a monster even if removing a monster has nothing to do with sounds (well, more or less, a killed monster tells my sound class that he is dead so the sounds can be reused for another monster when/if a new monster is spawned) - I’d say it’s somewhere in the garbage collecting , so beyond my scope of know-how.

The worst thing is that it’s not happening all the time but at random, I could redesign my monsters not to be destroyed but just hidden for later use, but sooner or later I will have to add and remove objects and the game will crash :frowning:

Should I post this at the bug tracker?

3

Yes, and perhaps you can also try and reduce your code to the minimal test sample for us to reproduce the problem.

4

I’m having a hard time making a minimal sample, can’t make it crash :blush:

I don’t want to make all of my code public (at this point), but I can send it to You via email or something like that.