Make audio buffer size configurable

[drfiemost]

As the title says, add an ini setting to specify the buffer length in milliseconds.

[ruby-R53]

funny how i was about to open an issue mentioning exactly that lol

[ruby-R53]

oh yeah, one other thing i forgot to mention is that increasing the audio buffer size in sidplayfp makes the register dump display skip some frames to match with that size (?), at least when using PulseAudio

can this be fixed or is it just some insignificant detail?

[drfiemost]

Maybe we can use a separate thread to update the display...

[ruby-R53]

yeah, would also help with display flickering as a bonus maybe

[drfiemost]

Available on master, please test

[ruby-R53]

yeah the display is getting updated every 250 ms apparently, on both out123 and PulseAudio builds

it seems to have helped a bit with libsidplayfp#161 tho', i can still notice some inconsistencies with Gordian_Tomb.sid but they're more subtle now

[ruby-R53]

UPDATE: i also noticed that when selecting/replaying a tune, you hear some of it sorta leaking out after that brief moment of silence between the tune selection, seems like it's trying to fill a 250 ms buffer in the process (?)

[ruby-R53]

when selecting/replaying a tune, you hear some of it sorta leaking out after that brief moment of silence between the tune selection

coming to think of it, maybe this was already happening before this buffer thing was changed? however, the buffer size was so small back then that it was almost unnoticeable

[drfiemost]

yeah, I've noticed the same, will look into it.

[drfiemost]

Is it better now after last change?