Sound: Play one-off sound, then stop audio thread again?

[BafDyce]

I would like to add some sound an application. However, I only need to play a short sound (a few seconds) every few minutes. When using rg3d-sound, the Context spawns a mixer thread in the background which consumes 100% cpu (of one core). Unfortunately, I cannot find a way to stop this thread again (not even if I execute std::mem::drop(context) after playing the sound).

Is there some way to create a Context in such a way that it automatically stops itself again after playing the sound, so that my application doesnt need that high CPU resources all the time?

[mrDIMAS]

Hello! It actually sounds like a bug in a backend. Which OS do you use?

I just checked how it works on Windows and single core load was around 2-5%.

[BafDyce]

Hi! Thanks for the quick response, given that its holiday season :)

I'm on Linux, so using the alsa backend.

[mrDIMAS]

Should be fixed now. Changes are in 34591e9 . Could you please confirm if CPU usage is ok now?

[mrDIMAS]

I checked on virtual machine and it was something around 0.6-1.0%, previously it was ~98%.

[BafDyce]

Edit: Figured my problems out. (Note: When upgrading from 0.18.0, one has to create a SoundEngine and register the context there)

YES, the issue is now fixed! There's no thread consuming 100% CPU anymore. CPU usage is back to very low levels (as expected). Thanks for the quick work!

[BafDyce]

Note: I don't know if its a side effect or if it worked before already but (at least on my system) sounds also play flawlessly now in debug mode.

[mrDIMAS]

Cool. Yeah, I changed design a bit to support multiple contexts. I'm closing the issue then, it is good that you spotted this issue, thanks! I'll try to publish 0.19.0 on crates.io as soon as possible.