Re: [hatari-devel] SDL1 vs. SDL2 sound pausing

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 10/09/2016 à 11:17, Jerome Vernet a écrit :
> Hi again,
>
> I'm not a specialist at all, but
> Looking further on FS-UAE, FS-UAE is multi-threaded. On thread for SDL,
> on for emulation, on for the mouse emulation.
> Hatari on MacOsX have only one thread. So, basically, selecting a menu
> interrupt emulation anywhere.
>
> SDL2 have a separate thread for sound: "Audio runs independently in a
> separate thread, filled via a user callback mechanism ". SDL1 do not:
> sound is interrupted in SDL1, not in SDL2. The sound thread wait for
> data to play, but main Hatari Thread do not feed it. Hence, the noise,
> SDL2 continiously playing the last chunk of sound.
>
> Is it a plausible explanation ?

Hi

this could be possible ; in that case, maybe SDL2 has different option 
when sound buffer is not filled fast enough ? (eg: loop on latest data = 
noise, play empty sample instead (which would be better), ...)

Maybe looking at the code for the sound thread in sdl2 could give some 
idea of some possible options for sdl2 ?